diff --git a/proto/autogenerated/client.md b/proto/autogenerated/client.md
index 9b709dda..d6a05091 100644
--- a/proto/autogenerated/client.md
+++ b/proto/autogenerated/client.md
@@ -98,6 +98,11 @@ The nostr server will send back a message response, and inside the body there wi
   - This methods has an __empty__ __request__ body
   - output: [DebitAuthorizations](#DebitAuthorizations)
 
+- GetErrorStats
+  - auth type: __Metrics__
+  - This methods has an __empty__ __request__ body
+  - output: [ErrorStats](#ErrorStats)
+
 - GetHttpCreds
   - auth type: __User__
   - This methods has an __empty__ __request__ body
@@ -467,6 +472,13 @@ The nostr server will send back a message response, and inside the body there wi
   - This methods has an __empty__ __request__ body
   - output: [DebitAuthorizations](#DebitAuthorizations)
 
+- GetErrorStats
+  - auth type: __Metrics__
+  - http method: __post__
+  - http route: __/api/reports/errors__
+  - This methods has an __empty__ __request__ body
+  - output: [ErrorStats](#ErrorStats)
+
 - GetHttpCreds
   - auth type: __User__
   - http method: __post__
@@ -986,6 +998,18 @@ The nostr server will send back a message response, and inside the body there wi
 ### EnrollAdminTokenRequest
   - __admin_token__: _string_
 
+### ErrorStat
+  - __errors__: _number_
+  - __from_unix__: _number_
+  - __total__: _number_
+
+### ErrorStats
+  - __past10m__: _[ErrorStat](#ErrorStat)_
+  - __past1h__: _[ErrorStat](#ErrorStat)_
+  - __past1m__: _[ErrorStat](#ErrorStat)_
+  - __past24h__: _[ErrorStat](#ErrorStat)_
+  - __past6h__: _[ErrorStat](#ErrorStat)_
+
 ### FrequencyRule
   - __amount__: _number_
   - __interval__: _[IntervalType](#IntervalType)_
diff --git a/proto/autogenerated/go/http_client.go b/proto/autogenerated/go/http_client.go
index 522df237..5ecc8996 100644
--- a/proto/autogenerated/go/http_client.go
+++ b/proto/autogenerated/go/http_client.go
@@ -78,6 +78,7 @@ type Client struct {
 	GetAppUserLNURLInfo         func(req GetAppUserLNURLInfoRequest) (*LnurlPayInfoResponse, error)
 	GetAppsMetrics              func(req AppsMetricsRequest) (*AppsMetrics, error)
 	GetDebitAuthorizations      func() (*DebitAuthorizations, error)
+	GetErrorStats               func() (*ErrorStats, error)
 	GetHttpCreds                func() (*HttpCreds, error)
 	GetInviteLinkState          func(req GetInviteTokenStateRequest) (*GetInviteTokenStateResponse, error)
 	GetLNURLChannelLink         func() (*LnurlLinkResponse, error)
@@ -758,6 +759,32 @@ func NewClient(params ClientParams) *Client {
 			}
 			return &res, nil
 		},
+		GetErrorStats: func() (*ErrorStats, error) {
+			auth, err := params.RetrieveMetricsAuth()
+			if err != nil {
+				return nil, err
+			}
+			finalRoute := "/api/reports/errors"
+			body := []byte{}
+			resBody, err := doPostRequest(params.BaseURL+finalRoute, body, auth)
+			if err != nil {
+				return nil, err
+			}
+			result := ResultError{}
+			err = json.Unmarshal(resBody, &result)
+			if err != nil {
+				return nil, err
+			}
+			if result.Status == "ERROR" {
+				return nil, fmt.Errorf(result.Reason)
+			}
+			res := ErrorStats{}
+			err = json.Unmarshal(resBody, &res)
+			if err != nil {
+				return nil, err
+			}
+			return &res, nil
+		},
 		// server streaming method: GetHttpCreds not implemented
 		GetInviteLinkState: func(req GetInviteTokenStateRequest) (*GetInviteTokenStateResponse, error) {
 			auth, err := params.RetrieveAdminAuth()
diff --git a/proto/autogenerated/go/types.go b/proto/autogenerated/go/types.go
index a316cbdc..2fda35f5 100644
--- a/proto/autogenerated/go/types.go
+++ b/proto/autogenerated/go/types.go
@@ -250,6 +250,18 @@ type EncryptionExchangeRequest struct {
 type EnrollAdminTokenRequest struct {
 	Admin_token string `json:"admin_token"`
 }
+type ErrorStat struct {
+	Errors    int64 `json:"errors"`
+	From_unix int64 `json:"from_unix"`
+	Total     int64 `json:"total"`
+}
+type ErrorStats struct {
+	Past10m *ErrorStat `json:"past10m"`
+	Past1h  *ErrorStat `json:"past1h"`
+	Past1m  *ErrorStat `json:"past1m"`
+	Past24h *ErrorStat `json:"past24h"`
+	Past6h  *ErrorStat `json:"past6h"`
+}
 type FrequencyRule struct {
 	Amount              int64        `json:"amount"`
 	Interval            IntervalType `json:"interval"`
diff --git a/proto/autogenerated/ts/express_server.ts b/proto/autogenerated/ts/express_server.ts
index f76044ea..9b1fd1ea 100644
--- a/proto/autogenerated/ts/express_server.ts
+++ b/proto/autogenerated/ts/express_server.ts
@@ -885,6 +885,25 @@ export default (methods: Types.ServerMethods, opts: ServerOptions) => {
             opts.metricsCallback([{ ...info, ...stats, ...authContext }])
         } catch (ex) { const e = ex as any; logErrorAndReturnResponse(e, e.message || e, res, logger, { ...info, ...stats, ...authCtx }, opts.metricsCallback); if (opts.throwErrors) throw e }
     })
+    if (!opts.allowNotImplementedMethods && !methods.GetErrorStats) throw new Error('method: GetErrorStats is not implemented')
+    app.post('/api/reports/errors', async (req, res) => {
+        const info: Types.RequestInfo = { rpcName: 'GetErrorStats', batch: false, nostr: false, batchSize: 0}
+        const stats: Types.RequestStats = { startMs:req.startTimeMs || 0, start:req.startTime || 0n, parse: process.hrtime.bigint(), guard: 0n, validate: 0n, handle: 0n }
+        let authCtx: Types.AuthContext = {}
+        try {
+            if (!methods.GetErrorStats) throw new Error('method: GetErrorStats is not implemented')
+            const authContext = await opts.MetricsAuthGuard(req.headers['authorization'])
+            authCtx = authContext
+            stats.guard = process.hrtime.bigint()
+            stats.validate = stats.guard
+            const query = req.query
+            const params = req.params
+            const response =  await methods.GetErrorStats({rpcName:'GetErrorStats', ctx:authContext })
+            stats.handle = process.hrtime.bigint()
+            res.json({status: 'OK', ...response})
+            opts.metricsCallback([{ ...info, ...stats, ...authContext }])
+        } catch (ex) { const e = ex as any; logErrorAndReturnResponse(e, e.message || e, res, logger, { ...info, ...stats, ...authCtx }, opts.metricsCallback); if (opts.throwErrors) throw e }
+    })
     if (!opts.allowNotImplementedMethods && !methods.GetInviteLinkState) throw new Error('method: GetInviteLinkState is not implemented')
     app.post('/api/admin/app/invite/get', async (req, res) => {
         const info: Types.RequestInfo = { rpcName: 'GetInviteLinkState', batch: false, nostr: false, batchSize: 0}
diff --git a/proto/autogenerated/ts/http_client.ts b/proto/autogenerated/ts/http_client.ts
index 0097d29e..10ae0041 100644
--- a/proto/autogenerated/ts/http_client.ts
+++ b/proto/autogenerated/ts/http_client.ts
@@ -332,6 +332,20 @@ export default (params: ClientParams) => ({
         }
         return { status: 'ERROR', reason: 'invalid response' }
     },
+    GetErrorStats: async (): Promise<ResultError | ({ status: 'OK' }& Types.ErrorStats)> => {
+        const auth = await params.retrieveMetricsAuth()
+        if (auth === null) throw new Error('retrieveMetricsAuth() returned null')
+        let finalRoute = '/api/reports/errors'
+        const { data } = await axios.post(params.baseUrl + finalRoute, {}, { headers: { 'authorization': auth } })
+        if (data.status === 'ERROR' && typeof data.reason === 'string') return data
+        if (data.status === 'OK') { 
+            const result = data
+            if(!params.checkResult) return { status: 'OK', ...result }
+            const error = Types.ErrorStatsValidate(result)
+            if (error === null) { return { status: 'OK', ...result } } else return { status: 'ERROR', reason: error.message }
+        }
+        return { status: 'ERROR', reason: 'invalid response' }
+    },
     GetHttpCreds: async (cb: (v:ResultError | ({ status: 'OK' }& Types.HttpCreds)) => void): Promise<void> => { throw  new Error('http streams are not supported')},
     GetInviteLinkState: async (request: Types.GetInviteTokenStateRequest): Promise<ResultError | ({ status: 'OK' }& Types.GetInviteTokenStateResponse)> => {
         const auth = await params.retrieveAdminAuth()
diff --git a/proto/autogenerated/ts/nostr_client.ts b/proto/autogenerated/ts/nostr_client.ts
index 286b6414..04f14158 100644
--- a/proto/autogenerated/ts/nostr_client.ts
+++ b/proto/autogenerated/ts/nostr_client.ts
@@ -247,6 +247,20 @@ export default (params: NostrClientParams,  send: (to:string, message: NostrRequ
         }
         return { status: 'ERROR', reason: 'invalid response' }
     },
+    GetErrorStats: async (): Promise<ResultError | ({ status: 'OK' }& Types.ErrorStats)> => {
+        const auth = await params.retrieveNostrMetricsAuth()
+        if (auth === null) throw new Error('retrieveNostrMetricsAuth() returned null')
+        const nostrRequest: NostrRequest = {}
+        const data = await send(params.pubDestination, {rpcName:'GetErrorStats',authIdentifier:auth, ...nostrRequest }) 
+        if (data.status === 'ERROR' && typeof data.reason === 'string') return data
+        if (data.status === 'OK') { 
+            const result = data
+            if(!params.checkResult) return { status: 'OK', ...result }
+            const error = Types.ErrorStatsValidate(result)
+            if (error === null) { return { status: 'OK', ...result } } else return { status: 'ERROR', reason: error.message }
+        }
+        return { status: 'ERROR', reason: 'invalid response' }
+    },
     GetHttpCreds: async (cb: (res:ResultError | ({ status: 'OK' }& Types.HttpCreds)) => void): Promise<void> => {
         const auth = await params.retrieveNostrUserAuth()
         if (auth === null) throw new Error('retrieveNostrUserAuth() returned null')
diff --git a/proto/autogenerated/ts/nostr_transport.ts b/proto/autogenerated/ts/nostr_transport.ts
index 96ad70e8..7d3f2c7d 100644
--- a/proto/autogenerated/ts/nostr_transport.ts
+++ b/proto/autogenerated/ts/nostr_transport.ts
@@ -634,6 +634,19 @@ export default (methods: Types.ServerMethods, opts: NostrOptions) => {
                     opts.metricsCallback([{ ...info, ...stats, ...authContext }])
                 }catch(ex){ const e = ex as any; logErrorAndReturnResponse(e, e.message || e, res, logger, { ...info, ...stats, ...authCtx }, opts.metricsCallback); if (opts.throwErrors) throw e }
                 break
+            case 'GetErrorStats':
+                try {
+                    if (!methods.GetErrorStats) throw new Error('method: GetErrorStats is not implemented')
+                    const authContext = await opts.NostrMetricsAuthGuard(req.appId, req.authIdentifier)
+                    stats.guard = process.hrtime.bigint()
+                    authCtx = authContext
+                    stats.validate = stats.guard
+                    const response = await methods.GetErrorStats({rpcName:'GetErrorStats', ctx:authContext })
+                    stats.handle = process.hrtime.bigint()
+                    res({status: 'OK', ...response})
+                    opts.metricsCallback([{ ...info, ...stats, ...authContext }])
+                }catch(ex){ const e = ex as any; logErrorAndReturnResponse(e, e.message || e, res, logger, { ...info, ...stats, ...authCtx }, opts.metricsCallback); if (opts.throwErrors) throw e }
+                break
             case 'GetHttpCreds':
                 try {
                     if (!methods.GetHttpCreds) throw new Error('method: GetHttpCreds is not implemented')
diff --git a/proto/autogenerated/ts/types.ts b/proto/autogenerated/ts/types.ts
index 6b815ab7..7fbffbf1 100644
--- a/proto/autogenerated/ts/types.ts
+++ b/proto/autogenerated/ts/types.ts
@@ -27,8 +27,8 @@ export type GuestWithPubMethodOutputs = LinkNPubThroughToken_Output | UseInviteL
 export type MetricsContext = {
     operator_id: string
 }
-export type MetricsMethodInputs = GetAppsMetrics_Input | GetLndMetrics_Input | GetUsageMetrics_Input
-export type MetricsMethodOutputs = GetAppsMetrics_Output | GetLndMetrics_Output | GetUsageMetrics_Output
+export type MetricsMethodInputs = GetAppsMetrics_Input | GetErrorStats_Input | GetLndMetrics_Input | GetUsageMetrics_Input
+export type MetricsMethodOutputs = GetAppsMetrics_Output | GetErrorStats_Output | GetLndMetrics_Output | GetUsageMetrics_Output
 export type UserContext = {
     app_id: string
     app_user_id: string
@@ -110,6 +110,9 @@ export type GetAppsMetrics_Output = ResultError | ({ status: 'OK' } & AppsMetric
 export type GetDebitAuthorizations_Input = {rpcName:'GetDebitAuthorizations'}
 export type GetDebitAuthorizations_Output = ResultError | ({ status: 'OK' } & DebitAuthorizations)
 
+export type GetErrorStats_Input = {rpcName:'GetErrorStats'}
+export type GetErrorStats_Output = ResultError | ({ status: 'OK' } & ErrorStats)
+
 export type GetHttpCreds_Input = {rpcName:'GetHttpCreds',  cb:(res: HttpCreds, err:Error|null)=> void}
 export type GetHttpCreds_Output = ResultError | { status: 'OK' }
 
@@ -300,6 +303,7 @@ export type ServerMethods = {
     GetAppUserLNURLInfo?: (req: GetAppUserLNURLInfo_Input & {ctx: AppContext }) => Promise<LnurlPayInfoResponse>
     GetAppsMetrics?: (req: GetAppsMetrics_Input & {ctx: MetricsContext }) => Promise<AppsMetrics>
     GetDebitAuthorizations?: (req: GetDebitAuthorizations_Input & {ctx: UserContext }) => Promise<DebitAuthorizations>
+    GetErrorStats?: (req: GetErrorStats_Input & {ctx: MetricsContext }) => Promise<ErrorStats>
     GetHttpCreds?: (req: GetHttpCreds_Input & {ctx: UserContext }) => Promise<void>
     GetInviteLinkState?: (req: GetInviteLinkState_Input & {ctx: AdminContext }) => Promise<GetInviteTokenStateResponse>
     GetLNURLChannelLink?: (req: GetLNURLChannelLink_Input & {ctx: UserContext }) => Promise<LnurlLinkResponse>
@@ -1371,6 +1375,77 @@ export const EnrollAdminTokenRequestValidate = (o?: EnrollAdminTokenRequest, opt
     return null
 }
 
+export type ErrorStat = {
+    errors: number
+    from_unix: number
+    total: number
+}
+export const ErrorStatOptionalFields: [] = []
+export type ErrorStatOptions = OptionsBaseMessage & {
+    checkOptionalsAreSet?: []
+    errors_CustomCheck?: (v: number) => boolean
+    from_unix_CustomCheck?: (v: number) => boolean
+    total_CustomCheck?: (v: number) => boolean
+}
+export const ErrorStatValidate = (o?: ErrorStat, opts: ErrorStatOptions = {}, path: string = 'ErrorStat::root.'): Error | null => {
+    if (opts.checkOptionalsAreSet && opts.allOptionalsAreSet) return new Error(path + ': only one of checkOptionalsAreSet or allOptionalNonDefault can be set for each message')
+    if (typeof o !== 'object' || o === null) return new Error(path + ': object is not an instance of an object or is null')
+
+    if (typeof o.errors !== 'number') return new Error(`${path}.errors: is not a number`)
+    if (opts.errors_CustomCheck && !opts.errors_CustomCheck(o.errors)) return new Error(`${path}.errors: custom check failed`)
+
+    if (typeof o.from_unix !== 'number') return new Error(`${path}.from_unix: is not a number`)
+    if (opts.from_unix_CustomCheck && !opts.from_unix_CustomCheck(o.from_unix)) return new Error(`${path}.from_unix: custom check failed`)
+
+    if (typeof o.total !== 'number') return new Error(`${path}.total: is not a number`)
+    if (opts.total_CustomCheck && !opts.total_CustomCheck(o.total)) return new Error(`${path}.total: custom check failed`)
+
+    return null
+}
+
+export type ErrorStats = {
+    past10m: ErrorStat
+    past1h: ErrorStat
+    past1m: ErrorStat
+    past24h: ErrorStat
+    past6h: ErrorStat
+}
+export const ErrorStatsOptionalFields: [] = []
+export type ErrorStatsOptions = OptionsBaseMessage & {
+    checkOptionalsAreSet?: []
+    past10m_Options?: ErrorStatOptions
+    past1h_Options?: ErrorStatOptions
+    past1m_Options?: ErrorStatOptions
+    past24h_Options?: ErrorStatOptions
+    past6h_Options?: ErrorStatOptions
+}
+export const ErrorStatsValidate = (o?: ErrorStats, opts: ErrorStatsOptions = {}, path: string = 'ErrorStats::root.'): Error | null => {
+    if (opts.checkOptionalsAreSet && opts.allOptionalsAreSet) return new Error(path + ': only one of checkOptionalsAreSet or allOptionalNonDefault can be set for each message')
+    if (typeof o !== 'object' || o === null) return new Error(path + ': object is not an instance of an object or is null')
+
+    const past10mErr = ErrorStatValidate(o.past10m, opts.past10m_Options, `${path}.past10m`)
+    if (past10mErr !== null) return past10mErr
+    
+
+    const past1hErr = ErrorStatValidate(o.past1h, opts.past1h_Options, `${path}.past1h`)
+    if (past1hErr !== null) return past1hErr
+    
+
+    const past1mErr = ErrorStatValidate(o.past1m, opts.past1m_Options, `${path}.past1m`)
+    if (past1mErr !== null) return past1mErr
+    
+
+    const past24hErr = ErrorStatValidate(o.past24h, opts.past24h_Options, `${path}.past24h`)
+    if (past24hErr !== null) return past24hErr
+    
+
+    const past6hErr = ErrorStatValidate(o.past6h, opts.past6h_Options, `${path}.past6h`)
+    if (past6hErr !== null) return past6hErr
+    
+
+    return null
+}
+
 export type FrequencyRule = {
     amount: number
     interval: IntervalType
diff --git a/proto/service/methods.proto b/proto/service/methods.proto
index 9b8e9f42..f628120e 100644
--- a/proto/service/methods.proto
+++ b/proto/service/methods.proto
@@ -178,6 +178,12 @@ service LightningPub {
         option (http_route) = "/api/reports/usage";
         option (nostr) = true;
     }
+    rpc GetErrorStats(structs.Empty) returns (structs.ErrorStats) {
+        option (auth_type)  = "Metrics";
+        option (http_method) = "post";
+        option (http_route) = "/api/reports/errors";
+        option (nostr) = true;
+    }
 
     rpc GetAppsMetrics(structs.AppsMetricsRequest) returns (structs.AppsMetrics) {
         option (auth_type)  = "Metrics";
diff --git a/proto/service/structs.proto b/proto/service/structs.proto
index 572f224f..94556216 100644
--- a/proto/service/structs.proto
+++ b/proto/service/structs.proto
@@ -19,6 +19,20 @@ message UserHealthState {
     string downtime_reason = 1;
 }
 
+message ErrorStat {
+    int64 from_unix = 1;
+    int64 total = 2;
+    int64 errors = 3;
+}
+
+message ErrorStats {
+    ErrorStat past24h = 1;
+    ErrorStat past6h = 2;
+    ErrorStat past1h = 3;
+    ErrorStat past10m = 4;
+    ErrorStat past1m = 5;
+}
+
 message UsageMetric {
     int64 processed_at_ms = 1;
     int64 parsed_in_nano = 2;
diff --git a/src/services/metrics/index.ts b/src/services/metrics/index.ts
index 943943b9..bcfcbc58 100644
--- a/src/services/metrics/index.ts
+++ b/src/services/metrics/index.ts
@@ -72,6 +72,48 @@ export default class Handler {
         return this.storage.metricsEventStorage.LoadLatestMetrics()
     }
 
+    async GetErrorStats(): Promise<Types.ErrorStats> {
+        const last24h = this.storage.metricsEventStorage.getlast24hCache()
+        const nowUnix = Math.floor(Date.now() / 1000)
+        const stats: Types.ErrorStats = {
+            past24h: { errors: 0, total: 0, from_unix: nowUnix - 60 * 60 * 24 },
+            past6h: { errors: 0, total: 0, from_unix: nowUnix - 60 * 60 * 6 },
+            past1h: { errors: 0, total: 0, from_unix: nowUnix - 60 * 60 },
+            past10m: { errors: 0, total: 0, from_unix: nowUnix - 60 * 10 },
+            past1m: { errors: 0, total: 0, from_unix: nowUnix - 60 },
+        }
+        for (let i = last24h.length; i >= 0; i--) {
+            const e = last24h[i]
+            if (e.ts < stats.past24h.from_unix) {
+                break
+            }
+
+            stats.past24h.total += e.ok + e.fail
+            stats.past24h.errors += e.fail
+
+            if (e.ts >= stats.past6h.from_unix) {
+                stats.past6h.total += e.ok + e.fail
+                stats.past6h.errors += e.fail
+            }
+
+            if (e.ts >= stats.past1h.from_unix) {
+                stats.past1h.total += e.ok + e.fail
+                stats.past1h.errors += e.fail
+            }
+
+            if (e.ts >= stats.past10m.from_unix) {
+                stats.past10m.total += e.ok + e.fail
+                stats.past10m.errors += e.fail
+            }
+
+            if (e.ts >= stats.past1m.from_unix) {
+                stats.past1m.total += e.ok + e.fail
+                stats.past1m.errors += e.fail
+            }
+        }
+        return stats
+    }
+
 
 
     AddMetrics(newMetrics: (Types.RequestMetric & { app_id?: string })[]) {
@@ -91,7 +133,7 @@ export default class Handler {
                 processed_at_ms: m.startMs
             }
             const tlv = usageMetricsToTlv(um)
-            this.storage.metricsEventStorage.AddMetricEvent(appId, m.rpcName, encodeTLV(tlv))
+            this.storage.metricsEventStorage.AddMetricEvent(appId, m.rpcName, encodeTLV(tlv), !m.error)
         })
     }
 
diff --git a/src/services/serverMethods/index.ts b/src/services/serverMethods/index.ts
index 5b17a7ee..316fbf92 100644
--- a/src/services/serverMethods/index.ts
+++ b/src/services/serverMethods/index.ts
@@ -7,6 +7,9 @@ export default (mainHandler: Main): Types.ServerMethods => {
         GetUsageMetrics: async ({ ctx }) => {
             return mainHandler.metricsManager.GetUsageMetrics()
         },
+        GetErrorStats: async ({ ctx }) => {
+            return mainHandler.metricsManager.GetErrorStats()
+        },
         GetAppsMetrics: async ({ ctx, req }) => {
             return mainHandler.metricsManager.GetAppsMetrics(req)
         },
diff --git a/src/services/storage/metricsEventStorage.ts b/src/services/storage/metricsEventStorage.ts
index 6bf436e5..fc7017d5 100644
--- a/src/services/storage/metricsEventStorage.ts
+++ b/src/services/storage/metricsEventStorage.ts
@@ -6,20 +6,26 @@ const chunkSizeBytes = 128 * 1024
 export default class {
     settings: StorageSettings
     metricsPath: string
+    cachePath: string
     metaReady = false
     metricsMeta: Record<string, Record<string, { chunks: number[] }>> = {}
     pendingMetrics: Record<string, Record<string, { tlvs: Uint8Array[] }>> = {}
-    last24hOk: Record<number, number> = {}
-    last24hFail: Record<number, number> = {}
-    lastPersisted: number = 0
+    last24hCache: { ts: number, ok: number, fail: number }[] = []
+    lastPersistedMetrics: number = 0
+    lastPersistedCache: number = 0
     constructor(settings: StorageSettings) {
         this.settings = settings;
         this.metricsPath = [settings.dataDir, "metric_events"].join("/")
+        this.cachePath = [settings.dataDir, "metric_cache"].join("/")
         this.initMetricsMeta()
+        this.loadCache()
         setInterval(() => {
-            if (Date.now() - this.lastPersisted > 1000 * 60 * 5) {
+            if (Date.now() - this.lastPersistedMetrics > 1000 * 60 * 4) {
                 this.persistMetrics()
             }
+            if (Date.now() - this.lastPersistedCache > 1000 * 60 * 4) {
+                this.persistCache()
+            }
         }, 1000 * 60 * 5)
         process.on('exit', () => {
             this.persistMetrics()
@@ -39,7 +45,50 @@ export default class {
         });
     }
 
-    AddMetricEvent = (appId: string, method: string, metric: Uint8Array) => {
+    getlast24hCache = () => { return this.last24hCache }
+
+    rotateCache = (nowUnix: number) => {
+        const yesterday = nowUnix - 60 * 60 * 24
+        const latest = this.last24hCache.findIndex(c => c.ts >= yesterday)
+        if (latest === -1) {
+            this.last24hCache = []
+            return
+        } else if (latest === 0) {
+            return
+        }
+        this.last24hCache = this.last24hCache.slice(latest)
+    }
+
+    pushToCache = (ok: boolean) => {
+        const now = Math.floor(Date.now() / 1000)
+        this.rotateCache(now)
+        if (this.last24hCache.length === 0) {
+            this.last24hCache.push({ ts: now, ok: ok ? 1 : 0, fail: ok ? 0 : 1 })
+            return
+        }
+        const last = this.last24hCache[this.last24hCache.length - 1]
+        if (last.ts === now) {
+            last.ok += ok ? 1 : 0
+            last.fail += ok ? 0 : 1
+        } else {
+            this.last24hCache.push({ ts: now, ok: ok ? 1 : 0, fail: ok ? 0 : 1 })
+        }
+    }
+
+    persistCache = () => {
+        const last24CachePath = [this.cachePath, "last24hSF.json"].join("/")
+        fs.writeFileSync(last24CachePath, JSON.stringify(this.last24hCache))
+    }
+
+    loadCache = () => {
+        const last24CachePath = [this.cachePath, "last24hSF.json"].join("/")
+        if (fs.existsSync(last24CachePath)) {
+            this.last24hCache = JSON.parse(fs.readFileSync(last24CachePath, 'utf-8'))
+            this.rotateCache(Math.floor(Date.now() / 1000))
+        }
+    }
+
+    AddMetricEvent = (appId: string, method: string, metric: Uint8Array, success: boolean) => {
         if (!this.metaReady) {
             throw new Error("meta metrics not ready")
         }
@@ -50,6 +99,8 @@ export default class {
             this.pendingMetrics[appId][method] = { tlvs: [] }
         }
         this.pendingMetrics[appId][method].tlvs.push(metric)
+        this.pushToCache(success)
+
     }
 
     LoadLatestMetrics = async (): Promise<Types.UsageMetrics> => {
@@ -78,7 +129,7 @@ export default class {
         if (!this.metaReady) {
             throw new Error("meta metrics not ready")
         }
-        this.lastPersisted = Date.now()
+        this.lastPersistedMetrics = Date.now()
         const tosync = this.pendingMetrics
         this.pendingMetrics = {}
         const apps = Object.keys(tosync)