diff --git a/tests/unit/handlers/pools.handlers.test.js b/tests/unit/handlers/pools.handlers.test.js
new file mode 100644
index 0000000..850a35c
--- /dev/null
+++ b/tests/unit/handlers/pools.handlers.test.js
@@ -0,0 +1,192 @@
+'use strict'
+
+const test = require('brittle')
+const {
+  getPoolBalanceHistory,
+  flattenTransactionResults,
+  groupByBucket
+} = require('../../../workers/lib/server/handlers/pools.handlers')
+
+test('getPoolBalanceHistory - happy path', async (t) => {
+  const mockCtx = {
+    conf: {
+      orks: [{ rpcPublicKey: 'key1' }]
+    },
+    net_r0: {
+      jRequest: async () => {
+        return [{
+          ts: '1700006400000',
+          transactions: [{
+            username: 'user1',
+            changed_balance: 0.001,
+            mining_extra: { hash_rate: 611000000000000 }
+          }]
+        }]
+      }
+    }
+  }
+
+  const mockReq = {
+    query: { start: 1700000000000, end: 1700100000000, range: '1D' },
+    params: {}
+  }
+
+  const result = await getPoolBalanceHistory(mockCtx, mockReq, {})
+  t.ok(result.log, 'should return log array')
+  t.ok(Array.isArray(result.log), 'log should be array')
+  t.ok(result.log.length > 0, 'should have entries')
+  const entry = result.log[0]
+  t.ok(entry.hashrate > 0, 'should include hashrate')
+  t.ok(entry.revenue > 0, 'should include revenue')
+  t.pass()
+})
+
+test('getPoolBalanceHistory - with pool filter', async (t) => {
+  let capturedPayload = null
+  const mockCtx = {
+    conf: { orks: [{ rpcPublicKey: 'key1' }] },
+    net_r0: {
+      jRequest: async (key, method, payload) => {
+        capturedPayload = payload
+        return [{
+          ts: '1700006400000',
+          transactions: [
+            { username: 'user1', changed_balance: 0.001 },
+            { username: 'user2', changed_balance: 0.002 }
+          ]
+        }]
+      }
+    }
+  }
+
+  const mockReq = {
+    query: { start: 1700000000000, end: 1700100000000 },
+    params: { pool: 'user1' }
+  }
+
+  const result = await getPoolBalanceHistory(mockCtx, mockReq, {})
+  t.ok(result.log, 'should return log array')
+  t.is(capturedPayload.query.pool, 'user1', 'should pass pool filter in RPC payload')
+  t.pass()
+})
+
+test('getPoolBalanceHistory - "all" pool filter returns all pools', async (t) => {
+  const mockCtx = {
+    conf: { orks: [{ rpcPublicKey: 'key1' }] },
+    net_r0: {
+      jRequest: async () => {
+        return [{
+          ts: '1700006400000',
+          transactions: [
+            { username: 'user1', changed_balance: 0.001 },
+            { username: 'user2', changed_balance: 0.002 }
+          ]
+        }]
+      }
+    }
+  }
+
+  const mockReq = {
+    query: { start: 1700000000000, end: 1700100000000 },
+    params: { pool: 'all' }
+  }
+
+  const result = await getPoolBalanceHistory(mockCtx, mockReq, {})
+  t.ok(result.log.length > 0, 'should return entries for all pools')
+  t.pass()
+})
+
+test('getPoolBalanceHistory - missing start throws', async (t) => {
+  const mockCtx = {
+    conf: { orks: [] },
+    net_r0: { jRequest: async () => ({}) }
+  }
+
+  try {
+    await getPoolBalanceHistory(mockCtx, { query: { end: 1700100000000 }, params: {} }, {})
+    t.fail('should have thrown')
+  } catch (err) {
+    t.is(err.message, 'ERR_MISSING_START_END', 'should throw missing start/end error')
+  }
+  t.pass()
+})
+
+test('getPoolBalanceHistory - invalid range throws', async (t) => {
+  const mockCtx = {
+    conf: { orks: [] },
+    net_r0: { jRequest: async () => ({}) }
+  }
+
+  try {
+    await getPoolBalanceHistory(mockCtx, { query: { start: 1700100000000, end: 1700000000000 }, params: {} }, {})
+    t.fail('should have thrown')
+  } catch (err) {
+    t.is(err.message, 'ERR_INVALID_DATE_RANGE', 'should throw invalid range error')
+  }
+  t.pass()
+})
+
+test('getPoolBalanceHistory - empty ork results', async (t) => {
+  const mockCtx = {
+    conf: { orks: [{ rpcPublicKey: 'key1' }] },
+    net_r0: { jRequest: async () => ({}) }
+  }
+
+  const result = await getPoolBalanceHistory(mockCtx, { query: { start: 1700000000000, end: 1700100000000 }, params: {} }, {})
+  t.ok(result.log, 'should return log array')
+  t.is(result.log.length, 0, 'log should be empty')
+  t.pass()
+})
+
+test('flattenTransactionResults - extracts daily entries from ext-data', (t) => {
+  const results = [
+    [{
+      ts: '1700006400000',
+      transactions: [
+        { username: 'user1', changed_balance: 0.001, mining_extra: { hash_rate: 500000 } },
+        { username: 'user2', changed_balance: 0.002, mining_extra: { hash_rate: 600000 } }
+      ]
+    }]
+  ]
+  const entries = flattenTransactionResults(results)
+  t.is(entries.length, 1, 'should have 1 daily entry')
+  t.ok(entries[0].revenue > 0, 'should have revenue')
+  t.ok(entries[0].hashrate > 0, 'should have hashrate')
+  t.pass()
+})
+
+test('flattenTransactionResults - handles error results', (t) => {
+  const results = [{ error: 'timeout' }]
+  const entries = flattenTransactionResults(results)
+  t.is(entries.length, 0, 'should be empty for errors')
+  t.pass()
+})
+
+test('groupByBucket - groups by daily bucket', (t) => {
+  const entries = [
+    { ts: 1700006400000, revenue: 100 },
+    { ts: 1700050000000, revenue: 200 },
+    { ts: 1700092800000, revenue: 300 }
+  ]
+  const bucketSize = 86400000
+  const buckets = groupByBucket(entries, bucketSize)
+  t.ok(typeof buckets === 'object', 'should return object')
+  t.ok(Object.keys(buckets).length >= 1, 'should have at least one bucket')
+  t.pass()
+})
+
+test('groupByBucket - handles empty entries', (t) => {
+  const buckets = groupByBucket([], 86400000)
+  t.is(Object.keys(buckets).length, 0, 'should be empty')
+  t.pass()
+})
+
+test('groupByBucket - handles missing timestamps', (t) => {
+  const entries = [
+    { revenue: 100 },
+    { ts: 1700006400000, revenue: 200 }
+  ]
+  const buckets = groupByBucket(entries, 86400000)
+  t.ok(Object.keys(buckets).length >= 1, 'should skip items without ts')
+  t.pass()
+})
diff --git a/tests/unit/routes/pools.routes.test.js b/tests/unit/routes/pools.routes.test.js
new file mode 100644
index 0000000..e0de6be
--- /dev/null
+++ b/tests/unit/routes/pools.routes.test.js
@@ -0,0 +1,39 @@
+'use strict'
+
+const test = require('brittle')
+const { testModuleStructure, testHandlerFunctions, testOnRequestFunctions } = require('../helpers/routeTestHelpers')
+const { createRoutesForTest } = require('../helpers/mockHelpers')
+
+const ROUTES_PATH = '../../../workers/lib/server/routes/pools.routes.js'
+
+test('pools routes - module structure', (t) => {
+  testModuleStructure(t, ROUTES_PATH, 'pools')
+  t.pass()
+})
+
+test('pools routes - route definitions', (t) => {
+  const routes = createRoutesForTest(ROUTES_PATH)
+  const routeUrls = routes.map(route => route.url)
+  t.ok(routeUrls.includes('/auth/pools/:pool/balance-history'), 'should have balance-history route')
+  t.pass()
+})
+
+test('pools routes - HTTP methods', (t) => {
+  const routes = createRoutesForTest(ROUTES_PATH)
+  routes.forEach(route => {
+    t.is(route.method, 'GET', `route ${route.url} should be GET`)
+  })
+  t.pass()
+})
+
+test('pools routes - handler functions', (t) => {
+  const routes = createRoutesForTest(ROUTES_PATH)
+  testHandlerFunctions(t, routes, 'pools')
+  t.pass()
+})
+
+test('pools routes - onRequest functions', (t) => {
+  const routes = createRoutesForTest(ROUTES_PATH)
+  testOnRequestFunctions(t, routes, 'pools')
+  t.pass()
+})
diff --git a/workers/lib/constants.js b/workers/lib/constants.js
index f1f407e..be0a531 100644
--- a/workers/lib/constants.js
+++ b/workers/lib/constants.js
@@ -108,7 +108,10 @@ const ENDPOINTS = {
   THING_CONFIG: '/auth/thing-config',
 
   // WebSocket endpoint
-  WEBSOCKET: '/ws'
+  WEBSOCKET: '/ws',
+
+  // Pools endpoints
+  POOLS_BALANCE_HISTORY: '/auth/pools/:pool/balance-history'
 }
 
 const HTTP_METHODS = {
@@ -183,6 +186,22 @@ const STATUS_CODES = {
   INTERNAL_SERVER_ERROR: 500
 }
 
+const RPC_METHODS = {
+  TAIL_LOG: 'tailLog',
+  GET_WRK_EXT_DATA: 'getWrkExtData'
+}
+
+const MINERPOOL_EXT_DATA_KEYS = {
+  TRANSACTIONS: 'transactions',
+  STATS: 'stats'
+}
+
+const RANGE_BUCKETS = {
+  '1D': 86400000,
+  '1W': 604800000,
+  '1M': 2592000000
+}
+
 const RPC_TIMEOUT = 15000
 const RPC_CONCURRENCY_LIMIT = 2
 
@@ -202,5 +221,8 @@ module.exports = {
   STATUS_CODES,
   RPC_TIMEOUT,
   RPC_CONCURRENCY_LIMIT,
-  USER_SETTINGS_TYPE
+  USER_SETTINGS_TYPE,
+  RPC_METHODS,
+  MINERPOOL_EXT_DATA_KEYS,
+  RANGE_BUCKETS
 }
diff --git a/workers/lib/server/handlers/pools.handlers.js b/workers/lib/server/handlers/pools.handlers.js
new file mode 100644
index 0000000..a7c6636
--- /dev/null
+++ b/workers/lib/server/handlers/pools.handlers.js
@@ -0,0 +1,115 @@
+'use strict'
+
+const {
+  RPC_METHODS,
+  MINERPOOL_EXT_DATA_KEYS,
+  RANGE_BUCKETS
+} = require('../../constants')
+const {
+  requestRpcEachLimit,
+  getStartOfDay
+} = require('../../utils')
+
+async function getPoolBalanceHistory (ctx, req) {
+  const start = Number(req.query.start)
+  const end = Number(req.query.end)
+  const range = req.query.range || '1D'
+  const poolParam = req.params.pool || null
+  const poolFilter = poolParam === 'all' ? null : poolParam
+
+  if (!start || !end) {
+    throw new Error('ERR_MISSING_START_END')
+  }
+
+  if (start >= end) {
+    throw new Error('ERR_INVALID_DATE_RANGE')
+  }
+
+  const results = await requestRpcEachLimit(ctx, RPC_METHODS.GET_WRK_EXT_DATA, {
+    type: 'minerpool',
+    query: { key: MINERPOOL_EXT_DATA_KEYS.TRANSACTIONS, start, end, pool: poolFilter }
+  })
+
+  const dailyEntries = flattenTransactionResults(results)
+
+  const bucketSize = RANGE_BUCKETS[range] || RANGE_BUCKETS['1D']
+  const buckets = groupByBucket(dailyEntries, bucketSize)
+
+  const log = Object.entries(buckets)
+    .sort(([a], [b]) => Number(a) - Number(b))
+    .map(([ts, entries]) => {
+      const totalRevenue = entries.reduce((sum, e) => sum + (e.revenue || 0), 0)
+      const hashrates = entries.filter(e => e.hashrate > 0)
+      const avgHashrate = hashrates.length
+        ? hashrates.reduce((sum, e) => sum + e.hashrate, 0) / hashrates.length
+        : 0
+
+      return {
+        ts: Number(ts),
+        balance: totalRevenue,
+        hashrate: avgHashrate,
+        revenue: totalRevenue
+      }
+    })
+
+  return { log }
+}
+
+function flattenTransactionResults (results) {
+  const daily = []
+  for (const res of results) {
+    if (res.error || !res) continue
+    const data = Array.isArray(res) ? res : (res.data || res.result || [])
+    if (!Array.isArray(data)) continue
+
+    for (const entry of data) {
+      if (!entry) continue
+      const ts = Number(entry.ts)
+      if (!ts) continue
+
+      const txs = entry.transactions || []
+      if (!Array.isArray(txs) || txs.length === 0) continue
+
+      let revenue = 0
+      let hashrate = 0
+      let hashCount = 0
+
+      for (const tx of txs) {
+        if (!tx) continue
+        revenue += Math.abs(tx.changed_balance || 0)
+        if (tx.mining_extra?.hash_rate) {
+          hashrate += tx.mining_extra.hash_rate
+          hashCount++
+        }
+      }
+
+      if (revenue === 0 && hashCount === 0) continue
+
+      daily.push({
+        ts: getStartOfDay(ts),
+        revenue,
+        hashrate: hashCount > 0 ? hashrate / hashCount : 0
+      })
+    }
+  }
+
+  return daily
+}
+
+function groupByBucket (entries, bucketSize) {
+  const buckets = {}
+  for (const entry of entries) {
+    const ts = entry.ts
+    if (!ts) continue
+    const bucketTs = Math.floor(ts / bucketSize) * bucketSize
+    if (!buckets[bucketTs]) buckets[bucketTs] = []
+    buckets[bucketTs].push(entry)
+  }
+  return buckets
+}
+
+module.exports = {
+  getPoolBalanceHistory,
+  flattenTransactionResults,
+  groupByBucket
+}
diff --git a/workers/lib/server/index.js b/workers/lib/server/index.js
index ac884da..9ce3cab 100644
--- a/workers/lib/server/index.js
+++ b/workers/lib/server/index.js
@@ -8,6 +8,7 @@ const globalRoutes = require('./routes/global.routes')
 const thingsRoutes = require('./routes/things.routes')
 const settingsRoutes = require('./routes/settings.routes')
 const wsRoutes = require('./routes/ws.routes')
+const poolsRoutes = require('./routes/pools.routes')
 
 /**
  * Collect all routes into a flat array for server injection.
@@ -22,7 +23,8 @@ function routes (ctx) {
     ...thingsRoutes(ctx),
     ...usersRoutes(ctx),
     ...settingsRoutes(ctx),
-    ...wsRoutes(ctx)
+    ...wsRoutes(ctx),
+    ...poolsRoutes(ctx)
   ]
 }
 
diff --git a/workers/lib/server/routes/pools.routes.js b/workers/lib/server/routes/pools.routes.js
new file mode 100644
index 0000000..720db18
--- /dev/null
+++ b/workers/lib/server/routes/pools.routes.js
@@ -0,0 +1,36 @@
+'use strict'
+
+const {
+  ENDPOINTS,
+  HTTP_METHODS
+} = require('../../constants')
+const {
+  getPoolBalanceHistory
+} = require('../handlers/pools.handlers')
+const { createCachedAuthRoute } = require('../lib/routeHelpers')
+
+module.exports = (ctx) => {
+  const schemas = require('../schemas/pools.schemas.js')
+
+  return [
+    {
+      method: HTTP_METHODS.GET,
+      url: ENDPOINTS.POOLS_BALANCE_HISTORY,
+      schema: {
+        querystring: schemas.query.balanceHistory
+      },
+      ...createCachedAuthRoute(
+        ctx,
+        (req) => [
+          'pools/balance-history',
+          req.params.pool,
+          req.query.start,
+          req.query.end,
+          req.query.range
+        ],
+        ENDPOINTS.POOLS_BALANCE_HISTORY,
+        getPoolBalanceHistory
+      )
+    }
+  ]
+}
diff --git a/workers/lib/server/schemas/pools.schemas.js b/workers/lib/server/schemas/pools.schemas.js
new file mode 100644
index 0000000..9d135f1
--- /dev/null
+++ b/workers/lib/server/schemas/pools.schemas.js
@@ -0,0 +1,18 @@
+'use strict'
+
+const schemas = {
+  query: {
+    balanceHistory: {
+      type: 'object',
+      properties: {
+        start: { type: 'integer' },
+        end: { type: 'integer' },
+        range: { type: 'string', enum: ['1D', '1W', '1M'] },
+        overwriteCache: { type: 'boolean' }
+      },
+      required: ['start', 'end']
+    }
+  }
+}
+
+module.exports = schemas
diff --git a/workers/lib/utils.js b/workers/lib/utils.js
index 886ae5f..4f1ced5 100644
--- a/workers/lib/utils.js
+++ b/workers/lib/utils.js
@@ -128,6 +128,8 @@ const requestRpcMapLimit = async (ctx, method, payload) => {
   })
 }
 
+const getStartOfDay = (ts) => Math.floor(ts / 86400000) * 86400000
+
 module.exports = {
   dateNowSec,
   extractIps,
@@ -137,5 +139,6 @@ module.exports = {
   getAuthTokenFromHeaders,
   parseJsonQueryParam,
   requestRpcEachLimit,
-  requestRpcMapLimit
+  requestRpcMapLimit,
+  getStartOfDay
 }