feat: 给key增加总用量限制

scripts/test-total-usage-limit.js

@@ -0,0 +1,150 @@
+#!/usr/bin/env node
+
+const path = require('path')
+const Module = require('module')
+
+const originalResolveFilename = Module._resolveFilename
+Module._resolveFilename = function resolveConfig(request, parent, isMain, options) {
+  if (request.endsWith('/config/config')) {
+    return path.resolve(__dirname, '../config/config.example.js')
+  }
+  return originalResolveFilename.call(this, request, parent, isMain, options)
+}
+
+const redis = require('../src/models/redis')
+const apiKeyService = require('../src/services/apiKeyService')
+const { authenticateApiKey } = require('../src/middleware/auth')
+
+Module._resolveFilename = originalResolveFilename
+
+function createMockReq(apiKey) {
+  return {
+    headers: {
+      'x-api-key': apiKey,
+      'user-agent': 'total-usage-limit-test'
+    },
+    query: {},
+    body: {},
+    ip: '127.0.0.1',
+    connection: {},
+    originalUrl: '/test-total-usage-limit',
+    once: () => {},
+    on: () => {},
+    get(header) {
+      return this.headers[header.toLowerCase()] || ''
+    }
+  }
+}
+
+function createMockRes() {
+  const state = {
+    status: 200,
+    body: null
+  }
+
+  return {
+    once: () => {},
+    on: () => {},
+    status(code) {
+      state.status = code
+      return this
+    },
+    json(payload) {
+      state.body = payload
+      return this
+    },
+    getState() {
+      return state
+    }
+  }
+}
+
+async function runAuth(apiKey) {
+  const req = createMockReq(apiKey)
+  const res = createMockRes()
+  let nextCalled = false
+
+  await authenticateApiKey(req, res, () => {
+    nextCalled = true
+  })
+
+  const result = res.getState()
+  if (nextCalled && result.status === 200) {
+    return { status: 200, body: null }
+  }
+  return result
+}
+
+async function cleanupKey(keyId) {
+  const client = redis.getClient()
+  if (!client) {
+    return
+  }
+
+  try {
+    await redis.deleteApiKey(keyId)
+    const usageKeys = await client.keys(`usage:*:${keyId}*`)
+    if (usageKeys.length > 0) {
+      await client.del(...usageKeys)
+    }
+    const costKeys = await client.keys(`usage:cost:*:${keyId}*`)
+    if (costKeys.length > 0) {
+      await client.del(...costKeys)
+    }
+    await client.del(`usage:${keyId}`)
+    await client.del(`usage:records:${keyId}`)
+    await client.del(`usage:cost:total:${keyId}`)
+  } catch (error) {
+    console.warn(`Failed to cleanup test key ${keyId}:`, error.message)
+  }
+}
+
+async function main() {
+  await redis.connect()
+
+  const testName = `TotalUsageLimitTest-${Date.now()}`
+  const totalLimit = 1.0
+  const newKey = await apiKeyService.generateApiKey({
+    name: testName,
+    permissions: 'all',
+    totalUsageLimit: totalLimit
+  })
+
+  const keyId = newKey.id
+  const apiKey = newKey.apiKey
+
+  console.log(`➕ Created test API key ${keyId} with total usage limit $${totalLimit}`)
+
+  let authResult = await runAuth(apiKey)
+  if (authResult.status !== 200) {
+    throw new Error(`Expected success before any usage, got status ${authResult.status}`)
+  }
+  console.log('✅ Authentication succeeds before consuming quota')
+
+  await redis.incrementDailyCost(keyId, 0.6)
+  authResult = await runAuth(apiKey)
+  if (authResult.status !== 200) {
+    throw new Error(`Expected success under quota, got status ${authResult.status}`)
+  }
+  console.log('✅ Authentication succeeds while still under quota ($0.60)')
+
+  await redis.incrementDailyCost(keyId, 0.5)
+  authResult = await runAuth(apiKey)
+  if (authResult.status !== 429) {
+    throw new Error(`Expected 429 after exceeding quota, got status ${authResult.status}`)
+  }
+  console.log('✅ Authentication returns 429 after exceeding total usage limit ($1.10)')
+
+  await cleanupKey(keyId)
+  await redis.disconnect()
+
+  console.log('🎉 Total usage limit test completed successfully')
+}
+
+main().catch(async (error) => {
+  console.error('❌ Total usage limit test failed:', error)
+  try {
+    await redis.disconnect()
+  } catch (_) {}
+  process.exitCode = 1
+})

src/middleware/auth.js

@@ -308,6 +308,29 @@ const authenticateApiKey = async (req, res, next) => {
       }
     }
 
+    // 检查总额度限制（基于累计费用）
+    const totalUsageLimit = Number(validation.keyData.totalUsageLimit || 0)
+    if (totalUsageLimit > 0) {
+      const totalCost = Number(validation.keyData.totalCost || 0)
+
+      if (totalCost >= totalUsageLimit) {
+        logger.security(
+          `📉 Total usage limit exceeded for key: ${validation.keyData.id} (${validation.keyData.name}), cost: $${totalCost.toFixed(2)}/$${totalUsageLimit.toFixed(2)}`
+        )
+
+        return res.status(429).json({
+          error: 'Total usage limit exceeded',
+          message: `已达到总额度限制 ($${totalUsageLimit.toFixed(2)})`,
+          currentCost: totalCost,
+          costLimit: totalUsageLimit
+        })
+      }
+
+      logger.api(
+        `📉 Total usage for key: ${validation.keyData.id} (${validation.keyData.name}), cost: $${totalCost.toFixed(2)}/$${totalUsageLimit.toFixed(2)}`
+      )
+    }
+
     // 检查每日费用限制
     const dailyCostLimit = validation.keyData.dailyCostLimit || 0
     if (dailyCostLimit > 0) {
@@ -333,6 +356,29 @@ const authenticateApiKey = async (req, res, next) => {
       )
     }
 
+    // 检查总费用限制
+    const totalCostLimit = validation.keyData.totalCostLimit || 0
+    if (totalCostLimit > 0) {
+      const totalCost = validation.keyData.totalCost || 0
+
+      if (totalCost >= totalCostLimit) {
+        logger.security(
+          `💰 Total cost limit exceeded for key: ${validation.keyData.id} (${validation.keyData.name}), cost: $${totalCost.toFixed(2)}/$${totalCostLimit}`
+        )
+
+        return res.status(429).json({
+          error: 'Total cost limit exceeded',
+          message: `已达到总费用限制 ($${totalCostLimit})`,
+          currentCost: totalCost,
+          costLimit: totalCostLimit
+        })
+      }
+
+      logger.api(
+        `💰 Total cost usage for key: ${validation.keyData.id} (${validation.keyData.name}), current: $${totalCost.toFixed(2)}/$${totalCostLimit}`
+      )
+    }
+
     // 检查 Opus 周费用限制（仅对 Opus 模型生效）
     const weeklyOpusCostLimit = validation.keyData.weeklyOpusCostLimit || 0
     if (weeklyOpusCostLimit > 0) {
@@ -394,6 +440,9 @@ const authenticateApiKey = async (req, res, next) => {
       allowedClients: validation.keyData.allowedClients,
       dailyCostLimit: validation.keyData.dailyCostLimit,
       dailyCost: validation.keyData.dailyCost,
+      totalUsageLimit: validation.keyData.totalUsageLimit,
+      totalCostLimit: validation.keyData.totalCostLimit,
+      totalCost: validation.keyData.totalCost,
       usage: validation.keyData.usage
     }
     req.usage = validation.keyData.usage

src/models/redis.js

@@ -636,6 +636,48 @@ class RedisClient {
     }
   }
 
+  async addUsageRecord(keyId, record, maxRecords = 200) {
+    const listKey = `usage:records:${keyId}`
+    const client = this.getClientSafe()
+
+    try {
+      await client
+        .multi()
+        .lpush(listKey, JSON.stringify(record))
+        .ltrim(listKey, 0, Math.max(0, maxRecords - 1))
+        .expire(listKey, 86400 * 90) // 默认保留90天
+        .exec()
+    } catch (error) {
+      logger.error(`❌ Failed to append usage record for key ${keyId}:`, error)
+    }
+  }
+
+  async getUsageRecords(keyId, limit = 50) {
+    const listKey = `usage:records:${keyId}`
+    const client = this.getClient()
+
+    if (!client) {
+      return []
+    }
+
+    try {
+      const rawRecords = await client.lrange(listKey, 0, Math.max(0, limit - 1))
+      return rawRecords
+        .map((entry) => {
+          try {
+            return JSON.parse(entry)
+          } catch (error) {
+            logger.warn('⚠️ Failed to parse usage record entry:', error)
+            return null
+          }
+        })
+        .filter(Boolean)
+    } catch (error) {
+      logger.error(`❌ Failed to load usage records for key ${keyId}:`, error)
+      return []
+    }
+  }
+
   // 💰 获取当日费用
   async getDailyCost(keyId) {
     const today = getDateStringInTimezone()

src/routes/admin.js

@@ -533,6 +533,8 @@ router.post('/api-keys', authenticateAdmin, async (req, res) => {
       enableClientRestriction,
       allowedClients,
       dailyCostLimit,
+      totalUsageLimit,
+      totalCostLimit,
       weeklyOpusCostLimit,
       tags,
       activationDays, // 新增：激活后有效天数
@@ -615,6 +617,35 @@ router.post('/api-keys', authenticateAdmin, async (req, res) => {
       return res.status(400).json({ error: 'All tags must be non-empty strings' })
     }
 
+    if (
+      totalUsageLimit !== undefined &&
+      totalUsageLimit !== null &&
+      totalUsageLimit !== ''
+    ) {
+      const usageLimit = Number(totalUsageLimit)
+      if (Number.isNaN(usageLimit) || usageLimit < 0) {
+        return res.status(400).json({ error: 'Total usage limit must be a non-negative number' })
+      }
+    }
+
+    if (
+      totalCostLimit !== undefined &&
+      totalCostLimit !== null &&
+      totalCostLimit !== '' &&
+      (Number.isNaN(Number(totalCostLimit)) || Number(totalCostLimit) < 0)
+    ) {
+      return res.status(400).json({ error: 'Total cost limit must be a non-negative number' })
+    }
+
+    if (
+      totalCostLimit !== undefined &&
+      totalCostLimit !== null &&
+      totalCostLimit !== '' &&
+      (Number.isNaN(Number(totalCostLimit)) || Number(totalCostLimit) < 0)
+    ) {
+      return res.status(400).json({ error: 'Total cost limit must be a non-negative number' })
+    }
+
     // 验证激活相关字段
     if (expirationMode && !['fixed', 'activation'].includes(expirationMode)) {
       return res
@@ -660,6 +691,8 @@ router.post('/api-keys', authenticateAdmin, async (req, res) => {
       enableClientRestriction,
       allowedClients,
       dailyCostLimit,
+      totalUsageLimit,
+      totalCostLimit,
       weeklyOpusCostLimit,
       tags,
       activationDays,
@@ -699,6 +732,8 @@ router.post('/api-keys/batch', authenticateAdmin, async (req, res) => {
       enableClientRestriction,
       allowedClients,
       dailyCostLimit,
+      totalUsageLimit,
+      totalCostLimit,
       weeklyOpusCostLimit,
       tags,
       activationDays,
@@ -748,6 +783,8 @@ router.post('/api-keys/batch', authenticateAdmin, async (req, res) => {
           enableClientRestriction,
           allowedClients,
           dailyCostLimit,
+          totalUsageLimit,
+          totalCostLimit,
           weeklyOpusCostLimit,
           tags,
           activationDays,
@@ -865,6 +902,12 @@ router.put('/api-keys/batch', authenticateAdmin, async (req, res) => {
         if (updates.dailyCostLimit !== undefined) {
           finalUpdates.dailyCostLimit = updates.dailyCostLimit
         }
+        if (updates.totalUsageLimit !== undefined) {
+          finalUpdates.totalUsageLimit = updates.totalUsageLimit
+        }
+        if (updates.totalCostLimit !== undefined) {
+          finalUpdates.totalCostLimit = updates.totalCostLimit
+        }
         if (updates.weeklyOpusCostLimit !== undefined) {
           finalUpdates.weeklyOpusCostLimit = updates.weeklyOpusCostLimit
         }
@@ -993,6 +1036,8 @@ router.put('/api-keys/:keyId', authenticateAdmin, async (req, res) => {
       allowedClients,
       expiresAt,
       dailyCostLimit,
+      totalUsageLimit,
+      totalCostLimit,
       weeklyOpusCostLimit,
       tags,
       ownerId // 新增：所有者ID字段
@@ -1142,6 +1187,22 @@ router.put('/api-keys/:keyId', authenticateAdmin, async (req, res) => {
       updates.dailyCostLimit = costLimit
     }
 
+    if (totalCostLimit !== undefined && totalCostLimit !== null && totalCostLimit !== '') {
+      const costLimit = Number(totalCostLimit)
+      if (isNaN(costLimit) || costLimit < 0) {
+        return res.status(400).json({ error: 'Total cost limit must be a non-negative number' })
+      }
+      updates.totalCostLimit = costLimit
+    }
+
+    if (totalUsageLimit !== undefined && totalUsageLimit !== null && totalUsageLimit !== '') {
+      const usageLimit = Number(totalUsageLimit)
+      if (Number.isNaN(usageLimit) || usageLimit < 0) {
+        return res.status(400).json({ error: 'Total usage limit must be a non-negative number' })
+      }
+      updates.totalUsageLimit = usageLimit
+    }
+
     // 处理 Opus 周费用限制
     if (
       weeklyOpusCostLimit !== undefined &&

src/routes/apiStats.js

@@ -114,6 +114,7 @@ router.post('/api/user-stats', async (req, res) => {
 
       // 获取当日费用统计
       const dailyCost = await redis.getDailyCost(keyId)
+      const costStats = await redis.getCostStats(keyId)
 
       // 处理数据格式，与 validateApiKey 返回的格式保持一致
       // 解析限制模型数据
@@ -140,7 +141,10 @@ router.post('/api/user-stats', async (req, res) => {
         rateLimitWindow: parseInt(keyData.rateLimitWindow) || 0,
         rateLimitRequests: parseInt(keyData.rateLimitRequests) || 0,
         dailyCostLimit: parseFloat(keyData.dailyCostLimit) || 0,
+        totalUsageLimit: parseFloat(keyData.totalUsageLimit) || 0,
+        totalCostLimit: parseFloat(keyData.totalCostLimit) || 0,
         dailyCost: dailyCost || 0,
+        totalCost: costStats.total || 0,
         enableModelRestriction: keyData.enableModelRestriction === 'true',
         restrictedModels,
         enableClientRestriction: keyData.enableClientRestriction === 'true',
@@ -372,11 +376,14 @@ router.post('/api/user-stats', async (req, res) => {
         rateLimitRequests: fullKeyData.rateLimitRequests || 0,
         rateLimitCost: parseFloat(fullKeyData.rateLimitCost) || 0, // 新增：费用限制
         dailyCostLimit: fullKeyData.dailyCostLimit || 0,
+        totalUsageLimit: fullKeyData.totalUsageLimit || 0,
+        totalCostLimit: fullKeyData.totalCostLimit || 0,
         // 当前使用量
         currentWindowRequests,
         currentWindowTokens,
         currentWindowCost, // 新增：当前窗口费用
         currentDailyCost,
+        currentTotalCost: totalCost,
         // 时间窗口信息
         windowStartTime,
         windowEndTime,

src/routes/userRoutes.js

@@ -258,6 +258,9 @@ router.get('/api-keys', authenticateUser, async (req, res) => {
         usage: flatUsage,
         dailyCost: key.dailyCost,
         dailyCostLimit: key.dailyCostLimit,
+        totalUsageLimit: key.totalUsageLimit,
+        totalCost: key.totalCost,
+        totalCostLimit: key.totalCostLimit,
         // 不返回实际的key值，只返回前缀和后几位
         keyPreview: key.key
           ? `${key.key.substring(0, 8)}...${key.key.substring(key.key.length - 4)}`
@@ -287,7 +290,15 @@ router.get('/api-keys', authenticateUser, async (req, res) => {
 // 🔑 创建新的API Key
 router.post('/api-keys', authenticateUser, async (req, res) => {
   try {
-    const { name, description, tokenLimit, expiresAt, dailyCostLimit } = req.body
+    const {
+      name,
+      description,
+      tokenLimit,
+      expiresAt,
+      dailyCostLimit,
+      totalUsageLimit,
+      totalCostLimit
+    } = req.body
 
     if (!name || !name.trim()) {
       return res.status(400).json({
@@ -296,6 +307,32 @@ router.post('/api-keys', authenticateUser, async (req, res) => {
       })
     }
 
+    if (
+      totalCostLimit !== undefined &&
+      totalCostLimit !== null &&
+      totalCostLimit !== '' &&
+      (Number.isNaN(Number(totalCostLimit)) || Number(totalCostLimit) < 0)
+    ) {
+      return res.status(400).json({
+        error: 'Invalid total cost limit',
+        message: 'Total cost limit must be a non-negative number'
+      })
+    }
+
+    if (
+      totalUsageLimit !== undefined &&
+      totalUsageLimit !== null &&
+      totalUsageLimit !== ''
+    ) {
+      const usageLimit = Number(totalUsageLimit)
+      if (Number.isNaN(usageLimit) || usageLimit < 0) {
+        return res.status(400).json({
+          error: 'Invalid total usage limit',
+          message: 'Total usage limit must be a non-negative number'
+        })
+      }
+    }
+
     // 检查用户API Key数量限制
     const userApiKeys = await apiKeyService.getUserApiKeys(req.user.id)
     if (userApiKeys.length >= config.userManagement.maxApiKeysPerUser) {
@@ -314,6 +351,8 @@ router.post('/api-keys', authenticateUser, async (req, res) => {
       tokenLimit: tokenLimit || null,
       expiresAt: expiresAt || null,
       dailyCostLimit: dailyCostLimit || null,
+      totalUsageLimit: totalUsageLimit || null,
+      totalCostLimit: totalCostLimit || null,
       createdBy: 'user',
       // 设置服务权限为全部服务，确保前端显示“服务权限”为“全部服务”且具备完整访问权限
       permissions: 'all'
@@ -337,6 +376,8 @@ router.post('/api-keys', authenticateUser, async (req, res) => {
         tokenLimit: newApiKey.tokenLimit,
         expiresAt: newApiKey.expiresAt,
         dailyCostLimit: newApiKey.dailyCostLimit,
+        totalUsageLimit: newApiKey.totalUsageLimit,
+        totalCostLimit: newApiKey.totalCostLimit,
         createdAt: newApiKey.createdAt
       }
     })

src/services/apiKeyService.js

@@ -33,6 +33,8 @@ class ApiKeyService {
       enableClientRestriction = false,
       allowedClients = [],
       dailyCostLimit = 0,
+      totalUsageLimit = 0,
+      totalCostLimit = 0,
       weeklyOpusCostLimit = 0,
       tags = [],
       activationDays = 0, // 新增：激活后有效天数（0表示不使用此功能）
@@ -68,6 +70,8 @@ class ApiKeyService {
       enableClientRestriction: String(enableClientRestriction || false),
       allowedClients: JSON.stringify(allowedClients || []),
       dailyCostLimit: String(dailyCostLimit || 0),
+      totalUsageLimit: String(totalUsageLimit || 0),
+      totalCostLimit: String(totalCostLimit || 0),
       weeklyOpusCostLimit: String(weeklyOpusCostLimit || 0),
       tags: JSON.stringify(tags || []),
       activationDays: String(activationDays || 0), // 新增：激活后有效天数
@@ -111,6 +115,8 @@ class ApiKeyService {
       enableClientRestriction: keyData.enableClientRestriction === 'true',
       allowedClients: JSON.parse(keyData.allowedClients || '[]'),
       dailyCostLimit: parseFloat(keyData.dailyCostLimit || 0),
+      totalUsageLimit: parseFloat(keyData.totalUsageLimit || 0),
+      totalCostLimit: parseFloat(keyData.totalCostLimit || 0),
       weeklyOpusCostLimit: parseFloat(keyData.weeklyOpusCostLimit || 0),
       tags: JSON.parse(keyData.tags || '[]'),
       activationDays: parseInt(keyData.activationDays || 0),
@@ -188,8 +194,12 @@ class ApiKeyService {
       // 获取使用统计（供返回数据使用）
       const usage = await redis.getUsageStats(keyData.id)
 
-      // 获取当日费用统计
+      // 获取费用统计
-      const dailyCost = await redis.getDailyCost(keyData.id)
+      const [dailyCost, costStats] = await Promise.all([
+        redis.getDailyCost(keyData.id),
+        redis.getCostStats(keyData.id)
+      ])
+      const totalCost = costStats?.total || 0
 
       // 更新最后使用时间（优化：只在实际API调用时更新，而不是验证时）
       // 注意：lastUsedAt的更新已移至recordUsage方法中
@@ -245,8 +255,11 @@ class ApiKeyService {
           enableClientRestriction: keyData.enableClientRestriction === 'true',
           allowedClients,
           dailyCostLimit: parseFloat(keyData.dailyCostLimit || 0),
+          totalUsageLimit: parseFloat(keyData.totalUsageLimit || 0),
+          totalCostLimit: parseFloat(keyData.totalCostLimit || 0),
           weeklyOpusCostLimit: parseFloat(keyData.weeklyOpusCostLimit || 0),
           dailyCost: dailyCost || 0,
+          totalCost,
           weeklyOpusCost: (await redis.getWeeklyOpusCost(keyData.id)) || 0,
           tags,
           usage
@@ -306,7 +319,10 @@ class ApiKeyService {
       }
 
       // 获取当日费用
-      const dailyCost = (await redis.getDailyCost(keyData.id)) || 0
+      const [dailyCost, costStats] = await Promise.all([
+        redis.getDailyCost(keyData.id),
+        redis.getCostStats(keyData.id)
+      ])
 
       // 获取使用统计
       const usage = await redis.getUsageStats(keyData.id)
@@ -365,8 +381,11 @@ class ApiKeyService {
           enableClientRestriction: keyData.enableClientRestriction === 'true',
           allowedClients,
           dailyCostLimit: parseFloat(keyData.dailyCostLimit || 0),
+          totalUsageLimit: parseFloat(keyData.totalUsageLimit || 0),
+          totalCostLimit: parseFloat(keyData.totalCostLimit || 0),
           weeklyOpusCostLimit: parseFloat(keyData.weeklyOpusCostLimit || 0),
           dailyCost: dailyCost || 0,
+          totalCost: costStats?.total || 0,
           weeklyOpusCost: (await redis.getWeeklyOpusCost(keyData.id)) || 0,
           tags,
           usage
@@ -405,12 +424,17 @@ class ApiKeyService {
         key.rateLimitWindow = parseInt(key.rateLimitWindow || 0)
         key.rateLimitRequests = parseInt(key.rateLimitRequests || 0)
         key.rateLimitCost = parseFloat(key.rateLimitCost || 0) // 新增：速率限制费用字段
+        key.totalUsageLimit = parseFloat(key.totalUsageLimit || 0)
+        if (Number.isNaN(key.totalUsageLimit)) {
+          key.totalUsageLimit = 0
+        }
         key.currentConcurrency = await redis.getConcurrency(key.id)
         key.isActive = key.isActive === 'true'
         key.enableModelRestriction = key.enableModelRestriction === 'true'
         key.enableClientRestriction = key.enableClientRestriction === 'true'
         key.permissions = key.permissions || 'all' // 兼容旧数据
         key.dailyCostLimit = parseFloat(key.dailyCostLimit || 0)
+        key.totalCostLimit = parseFloat(key.totalCostLimit || 0)
         key.weeklyOpusCostLimit = parseFloat(key.weeklyOpusCostLimit || 0)
         key.dailyCost = (await redis.getDailyCost(key.id)) || 0
         key.weeklyOpusCost = (await redis.getWeeklyOpusCost(key.id)) || 0
@@ -532,6 +556,8 @@ class ApiKeyService {
         'enableClientRestriction',
         'allowedClients',
         'dailyCostLimit',
+        'totalUsageLimit',
+        'totalCostLimit',
         'weeklyOpusCostLimit',
         'tags',
         'userId', // 新增：用户ID（所有者变更）
@@ -827,6 +853,21 @@ class ApiKeyService {
         }
       }
 
+      // 记录单次请求的使用详情
+      const usageCost = costInfo && costInfo.costs ? costInfo.costs.total || 0 : 0
+      await redis.addUsageRecord(keyId, {
+        timestamp: new Date().toISOString(),
+        model,
+        accountId: accountId || null,
+        inputTokens,
+        outputTokens,
+        cacheCreateTokens,
+        cacheReadTokens,
+        totalTokens,
+        cost: Number(usageCost.toFixed(6)),
+        costBreakdown: costInfo && costInfo.costs ? costInfo.costs : undefined
+      })
+
       const logParts = [`Model: ${model}`, `Input: ${inputTokens}`, `Output: ${outputTokens}`]
       if (cacheCreateTokens > 0) {
         logParts.push(`Cache Create: ${cacheCreateTokens}`)
@@ -973,6 +1014,32 @@ class ApiKeyService {
         }
       }
 
+      const usageRecord = {
+        timestamp: new Date().toISOString(),
+        model,
+        accountId: accountId || null,
+        accountType: accountType || null,
+        inputTokens,
+        outputTokens,
+        cacheCreateTokens,
+        cacheReadTokens,
+        ephemeral5mTokens,
+        ephemeral1hTokens,
+        totalTokens,
+        cost: Number((costInfo.totalCost || 0).toFixed(6)),
+        costBreakdown: {
+          input: costInfo.inputCost || 0,
+          output: costInfo.outputCost || 0,
+          cacheCreate: costInfo.cacheCreateCost || 0,
+          cacheRead: costInfo.cacheReadCost || 0,
+          ephemeral5m: costInfo.ephemeral5mCost || 0,
+          ephemeral1h: costInfo.ephemeral1hCost || 0
+        },
+        isLongContext: costInfo.isLongContextRequest || false
+      }
+
+      await redis.addUsageRecord(keyId, usageRecord)
+
       const logParts = [`Model: ${model}`, `Input: ${inputTokens}`, `Output: ${outputTokens}`]
       if (cacheCreateTokens > 0) {
         logParts.push(`Cache Create: ${cacheCreateTokens}`)
@@ -1014,8 +1081,24 @@ class ApiKeyService {
   }
 
   // 📈 获取使用统计
-  async getUsageStats(keyId) {
+  async getUsageStats(keyId, options = {}) {
-    return await redis.getUsageStats(keyId)
+    const usageStats = await redis.getUsageStats(keyId)
+
+    // options 可能是字符串（兼容旧接口），仅当为对象时才解析
+    const optionObject =
+      options && typeof options === 'object' && !Array.isArray(options) ? options : {}
+
+    if (optionObject.includeRecords === false) {
+      return usageStats
+    }
+
+    const recordLimit = optionObject.recordLimit || 20
+    const recentRecords = await redis.getUsageRecords(keyId, recordLimit)
+
+    return {
+      ...usageStats,
+      recentRecords
+    }
   }
 
   // 📊 获取账户使用统计
@@ -1067,6 +1150,8 @@ class ApiKeyService {
           dailyCost,
           totalCost: costStats.total,
           dailyCostLimit: parseFloat(key.dailyCostLimit || 0),
+          totalUsageLimit: parseFloat(key.totalUsageLimit || 0),
+          totalCostLimit: parseFloat(key.totalCostLimit || 0),
           userId: key.userId,
           userUsername: key.userUsername,
           createdBy: key.createdBy,
@@ -1112,7 +1197,9 @@ class ApiKeyService {
         userUsername: keyData.userUsername,
         createdBy: keyData.createdBy,
         permissions: keyData.permissions,
-        dailyCostLimit: parseFloat(keyData.dailyCostLimit || 0)
+        dailyCostLimit: parseFloat(keyData.dailyCostLimit || 0),
+        totalUsageLimit: parseFloat(keyData.totalUsageLimit || 0),
+        totalCostLimit: parseFloat(keyData.totalCostLimit || 0)
       }
     } catch (error) {
       logger.error('❌ Failed to get API key by ID:', error)

web/admin-spa/src/components/apikeys/BatchEditApiKeyModal.vue

@@ -218,6 +218,20 @@
             />
           </div>
 
+          <div>
+            <label class="mb-3 block text-sm font-semibold text-gray-700 dark:text-gray-300">
+              总费用限制 (美元)
+            </label>
+            <input
+              v-model="form.totalUsageLimit"
+              class="form-input w-full border-gray-300 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-200"
+              min="0"
+              placeholder="不修改 (0 表示无限制)"
+              step="0.01"
+              type="number"
+            />
+          </div>
+
           <!-- Opus 模型周费用限制 -->
           <div>
             <label class="mb-3 block text-sm font-semibold text-gray-700 dark:text-gray-300">
@@ -521,6 +535,7 @@ const form = reactive({
   rateLimitRequests: '',
   concurrencyLimit: '',
   dailyCostLimit: '',
+  totalUsageLimit: '',
   weeklyOpusCostLimit: '', // 新增Opus周费用限制
   permissions: '', // 空字符串表示不修改
   claudeAccountId: '',
@@ -652,6 +667,9 @@ const batchUpdateApiKeys = async () => {
     if (form.dailyCostLimit !== '' && form.dailyCostLimit !== null) {
       updates.dailyCostLimit = parseFloat(form.dailyCostLimit)
     }
+    if (form.totalUsageLimit !== '' && form.totalUsageLimit !== null) {
+      updates.totalUsageLimit = parseFloat(form.totalUsageLimit)
+    }
     if (form.weeklyOpusCostLimit !== '' && form.weeklyOpusCostLimit !== null) {
       updates.weeklyOpusCostLimit = parseFloat(form.weeklyOpusCostLimit)
     }

web/admin-spa/src/components/apikeys/CreateApiKeyModal.vue

@@ -329,12 +329,61 @@
                 step="0.01"
                 type="number"
               />
-              <p class="text-xs text-gray-500 dark:text-gray-400">
+              <p class="dark:text灰-400 text-xs text-gray-500">
                 设置此 API Key 每日的费用限制，超过限制将拒绝请求，0 或留空表示无限制
               </p>
             </div>
           </div>
 
+          <div>
+            <label class="mb-2 block text-sm font-semibold text-gray-700 dark:text-gray-300"
+              >总费用限制 (美元)</label
+            >
+            <div class="space-y-2">
+              <div class="flex gap-2">
+                <button
+                  class="rounded bg-gray-100 px-2 py-1 text-xs font-medium hover:bg-gray-200 dark:bg-gray-700 dark:text-gray-300 dark:hover:bg-gray-600"
+                  type="button"
+                  @click="form.totalUsageLimit = '100'"
+                >
+                  $100
+                </button>
+                <button
+                  class="rounded bg-gray-100 px-2 py-1 text-xs font-medium hover:bg-gray-200 dark:bg-gray-700 dark:text-gray-300 dark:hover:bg-gray-600"
+                  type="button"
+                  @click="form.totalUsageLimit = '500'"
+                >
+                  $500
+                </button>
+                <button
+                  class="rounded bg-gray-100 px-2 py-1 text-xs font-medium hover:bg-gray-200 dark:bg-gray-700 dark:text-gray-300 dark:hover:bg-gray-600"
+                  type="button"
+                  @click="form.totalUsageLimit = '1000'"
+                >
+                  $1000
+                </button>
+                <button
+                  class="rounded bg-gray-100 px-2 py-1 text-xs font-medium hover:bg-gray-200 dark:bg-gray-700 dark:text-gray-300 dark:hover:bg-gray-600"
+                  type="button"
+                  @click="form.totalUsageLimit = ''"
+                >
+                  自定义
+                </button>
+              </div>
+              <input
+                v-model="form.totalUsageLimit"
+                class="form-input w-full border-gray-300 dark:border-gray-600 dark:bg-gray-700 dark:text-gray-200 dark:placeholder-gray-400"
+                min="0"
+                placeholder="0 表示无限制"
+                step="0.01"
+                type="number"
+              />
+              <p class="text-xs text-gray-500 dark:text-gray-400">
+                设置此 API Key 的累计总费用限制，达到限制后将拒绝所有后续请求，0 或留空表示无限制
+              </p>
+            </div>
+          </div>
+
           <div>
             <label class="mb-2 block text-sm font-semibold text-gray-700 dark:text-gray-300"
               >Opus 模型周费用限制 (美元)</label
@@ -861,6 +910,7 @@ const form = reactive({
   rateLimitCost: '', // 新增：费用限制
   concurrencyLimit: '',
   dailyCostLimit: '',
+  totalUsageLimit: '',
   weeklyOpusCostLimit: '',
   expireDuration: '',
   customExpireDate: '',
@@ -1199,6 +1249,10 @@ const createApiKey = async () => {
         form.dailyCostLimit !== '' && form.dailyCostLimit !== null
           ? parseFloat(form.dailyCostLimit)
           : 0,
+      totalUsageLimit:
+        form.totalUsageLimit !== '' && form.totalUsageLimit !== null
+          ? parseFloat(form.totalUsageLimit)
+          : 0,
       weeklyOpusCostLimit:
         form.weeklyOpusCostLimit !== '' && form.weeklyOpusCostLimit !== null
           ? parseFloat(form.weeklyOpusCostLimit)

web/admin-spa/src/components/apikeys/EditApiKeyModal.vue

@@ -273,6 +273,55 @@
             </div>
           </div>
 
+          <div>
+            <label class="mb-3 block text-sm font-semibold text-gray-700 dark:text-gray-300"
+              >总费用限制 (美元)</label
+            >
+            <div class="space-y-3">
+              <div class="flex gap-2">
+                <button
+                  class="rounded-lg bg-gray-100 px-3 py-1 text-sm font-medium hover:bg-gray-200 dark:bg-gray-700 dark:text-gray-300 dark:hover:bg-gray-600"
+                  type="button"
+                  @click="form.totalUsageLimit = '100'"
+                >
+                  $100
+                </button>
+                <button
+                  class="rounded-lg bg-gray-100 px-3 py-1 text-sm font-medium hover:bg-gray-200 dark:bg-gray-700 dark:text-gray-300 dark:hover:bg-gray-600"
+                  type="button"
+                  @click="form.totalUsageLimit = '500'"
+                >
+                  $500
+                </button>
+                <button
+                  class="rounded-lg bg-gray-100 px-3 py-1 text-sm font-medium hover:bg-gray-200 dark:bg-gray-700 dark:text-gray-300 dark:hover:bg-gray-600"
+                  type="button"
+                  @click="form.totalUsageLimit = '1000'"
+                >
+                  $1000
+                </button>
+                <button
+                  class="rounded-lg bg-gray-100 px-3 py-1 text-sm font-medium hover:bg-gray-200 dark:bg-gray-700 dark:text-gray-300 dark:hover:bg-gray-600"
+                  type="button"
+                  @click="form.totalUsageLimit = ''"
+                >
+                  自定义
+                </button>
+              </div>
+              <input
+                v-model="form.totalUsageLimit"
+                class="form-input w-full border-gray-300 dark:border-gray-600 dark:bg-gray-700 dark:text-gray-200 dark:placeholder-gray-400"
+                min="0"
+                placeholder="0 表示无限制"
+                step="0.01"
+                type="number"
+              />
+              <p class="text-xs text-gray-500 dark:text-gray-400">
+                设置此 API Key 的累计总费用限制，达到限制后将拒绝所有后续请求，0 或留空表示无限制
+              </p>
+            </div>
+          </div>
+
           <div>
             <label class="mb-3 block text-sm font-semibold text-gray-700 dark:text-gray-300"
               >Opus 模型周费用限制 (美元)</label
@@ -713,6 +762,7 @@ const form = reactive({
   rateLimitCost: '', // 新增：费用限制
   concurrencyLimit: '',
   dailyCostLimit: '',
+  totalUsageLimit: '',
   weeklyOpusCostLimit: '',
   permissions: 'all',
   claudeAccountId: '',
@@ -826,6 +876,10 @@ const updateApiKey = async () => {
         form.dailyCostLimit !== '' && form.dailyCostLimit !== null
           ? parseFloat(form.dailyCostLimit)
           : 0,
+      totalUsageLimit:
+        form.totalUsageLimit !== '' && form.totalUsageLimit !== null
+          ? parseFloat(form.totalUsageLimit)
+          : 0,
       weeklyOpusCostLimit:
         form.weeklyOpusCostLimit !== '' && form.weeklyOpusCostLimit !== null
           ? parseFloat(form.weeklyOpusCostLimit)
@@ -1100,6 +1154,7 @@ onMounted(async () => {
   form.rateLimitRequests = props.apiKey.rateLimitRequests || ''
   form.concurrencyLimit = props.apiKey.concurrencyLimit || ''
   form.dailyCostLimit = props.apiKey.dailyCostLimit || ''
+  form.totalUsageLimit = props.apiKey.totalUsageLimit || ''
   form.weeklyOpusCostLimit = props.apiKey.weeklyOpusCostLimit || ''
   form.permissions = props.apiKey.permissions || 'all'
   // 处理 Claude 账号（区分 OAuth 和 Console）

web/admin-spa/src/components/apikeys/UsageDetailModal.vue

@@ -190,6 +190,31 @@
                 </span>
               </div>
 
+              <div v-if="apiKey.totalUsageLimit > 0" class="space-y-2">
+                <div class="flex items-center justify-between text-sm">
+                  <span class="text-gray-600 dark:text-gray-400">总费用限制</span>
+                  <span class="font-semibold text-gray-900 dark:text-gray-100">
+                    ${{ apiKey.totalUsageLimit.toFixed(2) }}
+                  </span>
+                </div>
+                <div class="h-2 w-full rounded-full bg-gray-200 dark:bg-gray-600">
+                  <div
+                    class="h-2 rounded-full transition-all duration-300"
+                    :class="
+                      totalUsagePercentage >= 100
+                        ? 'bg-red-500'
+                        : totalUsagePercentage >= 80
+                          ? 'bg-yellow-500'
+                          : 'bg-indigo-500'
+                    "
+                    :style="{ width: Math.min(totalUsagePercentage, 100) + '%' }"
+                  />
+                </div>
+                <div class="text-right text-xs text-gray-500 dark:text-gray-400">
+                  已使用 {{ totalUsagePercentage.toFixed(1) }}%
+                </div>
+              </div>
+
               <div v-if="apiKey.rateLimitWindow > 0" class="space-y-2">
                 <h5 class="text-sm font-medium text-gray-700 dark:text-gray-300">
                   <i class="fas fa-clock mr-1 text-blue-500" />
@@ -250,6 +275,7 @@ const totalTokens = computed(() => props.apiKey.usage?.total?.tokens || 0)
 const dailyTokens = computed(() => props.apiKey.usage?.daily?.tokens || 0)
 const totalCost = computed(() => props.apiKey.usage?.total?.cost || 0)
 const dailyCost = computed(() => props.apiKey.dailyCost || 0)
+const totalUsageLimit = computed(() => props.apiKey.totalUsageLimit || 0)
 const inputTokens = computed(() => props.apiKey.usage?.total?.inputTokens || 0)
 const outputTokens = computed(() => props.apiKey.usage?.total?.outputTokens || 0)
 const cacheCreateTokens = computed(() => props.apiKey.usage?.total?.cacheCreateTokens || 0)
@@ -260,6 +286,7 @@ const tpm = computed(() => props.apiKey.usage?.averages?.tpm || 0)
 const hasLimits = computed(() => {
   return (
     props.apiKey.dailyCostLimit > 0 ||
+    props.apiKey.totalUsageLimit > 0 ||
     props.apiKey.concurrencyLimit > 0 ||
     props.apiKey.rateLimitWindow > 0 ||
     props.apiKey.tokenLimit > 0
@@ -271,6 +298,11 @@ const dailyCostPercentage = computed(() => {
   return (dailyCost.value / props.apiKey.dailyCostLimit) * 100
 })
 
+const totalUsagePercentage = computed(() => {
+  if (!totalUsageLimit.value || totalUsageLimit.value === 0) return 0
+  return (totalCost.value / totalUsageLimit.value) * 100
+})
+
 // 方法
 const formatNumber = (num) => {
   if (!num && num !== 0) return '0'