ExchangeRebel Anomaly Detection API
The Anomaly Detection API from ExchangeRebel — 2 operation(s) for anomaly detection.
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OpenAPI Specification
openapi: 3.2.0
info:
title: ExchangeRebel — pay-per-call APIs for AI agents (x402 on…
version: 1.0.0
contact:
name: 'ExchangeRebel (operator: Rebel Data)'
url: https://exchangerebel.com
email: sound.money.investing@gmail.com
x-guidance: 'All paid operations use x402 on Solana: call without payment to get a 402 challenge (SOL recipient + USDC token account + fresh memo), pay with the memo attached via the Solana Memo program, then retry with header X-Payment-Tx: <signature> and ?toll_memo=<memo>. Challenges are dual-version: the PAYMENT-REQUIRED header carries the x402 v2 PaymentRequired object and the response body carries the same challenge in x402 v1 form for compatibility. Free operations (security: []) include each service''s /health catalog with full response shapes. Prices in x-payment-info are USD per call unless the summary says otherwise (RPC is per 1,000-request block; Telegram provisioning is per bot-month; transcription is per minute of audio).'
description: '67 data and utility APIs behind x402 tolls, settled in SOL or USDC on Solana. Call a paid endpoint without payment to receive a 402 x402 challenge (recipient + fresh memo), pay with the memo attached via the Solana Memo program, then retry with the X-Payment-Tx header and toll_memo query parameter. Free catalog/health endpoints are marked without x-payment-info. Full catalogs: GET /toll/discovery and each service''s /health.'
servers:
- url: https://exchangerebel.com
tags:
- name: Anomaly Detection
paths:
/toll/anomaly/batch:
post:
tags:
- Anomaly Detection
summary: Batch anomaly detection for up to 100 series
responses:
'200':
description: Success. Response shape is documented in the service catalog (GET /health on the service).
content:
application/json:
example:
results:
- results:
- index: 0
value: 10
score: 0.22483025315886906
robust_z: -0.22483025315886906
is_anomaly: false
signals: []
- index: 1
value: 10.2
score: 0.6744907594765912
robust_z: 0.6744907594765912
is_anomaly: false
signals: []
- index: 2
value: 9.8
score: 1.1241512657943293
robust_z: -1.1241512657943293
is_anomaly: false
signals: []
- index: 3
value: 10.1
score: 0.22483025315886107
robust_z: 0.22483025315886107
is_anomaly: false
signals: []
- index: 4
value: 42
score: 143.66653176851528
robust_z: 143.66653176851528
is_anomaly: true
signals:
- robust_z
- iqr_fence
- step_change
- index: 5
value: 10
score: 0.22483025315886906
robust_z: -0.22483025315886906
is_anomaly: true
signals:
- step_change
- index: 6
value: 9.9
score: 0.6744907594765992
robust_z: -0.6744907594765992
is_anomaly: false
signals: []
- index: 7
value: 10.3
score: 1.1241512657943293
robust_z: 1.1241512657943293
is_anomaly: false
signals: []
series_length: 8
flagged_count: 2
method:
algorithm: median_mad_robust_z + iqr_fence + step_change
method_version: anomaly-1
statistics_scope: global_whole_series
sensitivity: standard
z_cutoff: 3.5
iqr_multiplier: 1.5
step_cutoff: 3.5
spread_source: mad
mad_sigma_factor: 1.4826
thresholds_calibrated: false
thresholds_note: UNCALIBRATED DEFAULTS — see honesty section of the design/catalogue.
- results:
- index: 0
value: 7.5
score: 0
robust_z: 0
is_anomaly: false
signals: []
- index: 1
value: 7.5
score: 0
robust_z: 0
is_anomaly: false
signals: []
- index: 2
value: 7.5
score: 0
robust_z: 0
is_anomaly: false
signals: []
- index: 3
value: 7.5
score: 0
robust_z: 0
is_anomaly: false
signals: []
- index: 4
value: 7.5
score: 0
robust_z: 0
is_anomaly: false
signals: []
- index: 5
value: 7.5
score: 0
robust_z: 0
is_anomaly: false
signals: []
- index: 6
value: 7.5
score: 0
robust_z: 0
is_anomaly: false
signals: []
- index: 7
value: 7.5
score: 0
robust_z: 0
is_anomaly: false
signals: []
- index: 8
value: 7.5
score: 0
robust_z: 0
is_anomaly: false
signals: []
- index: 9
value: 7.5
score: 0
robust_z: 0
is_anomaly: false
signals: []
series_length: 10
flagged_count: 0
method:
algorithm: median_mad_robust_z + iqr_fence + step_change
method_version: anomaly-1
statistics_scope: global_whole_series
sensitivity: strict
z_cutoff: 2.5
iqr_multiplier: 1
step_cutoff: 2.5
spread_source: none_constant
mad_sigma_factor: 1.4826
thresholds_calibrated: false
thresholds_note: UNCALIBRATED DEFAULTS — see honesty section of the design/catalogue.
count: 2
price: 0.25
envelope:
v: 1
service: anomaly
as_of: '2026-10-21T21:17:05.171Z'
source: Caller-submitted series scored in memory by the anomaly-1 method (median/MAD robust z + IQR fences + step change over first differences); global whole-series statistics; thresholds are UNCALIBRATED DEFAULTS
grade: derived
max_age_seconds: 30
changes:
supported: false
'402':
description: 'Payment Required (x402). The PAYMENT-REQUIRED response header carries the x402 v2 PaymentRequired object (base64 JSON: scheme, CAIP-2 network, amount, asset, payTo, plus the bazaar discovery extension); the response body carries the same challenge in x402 v1 form for compatibility, naming the SOL recipient and USDC token account on Solana plus a fresh memo. To pay on this service''s rail: pay with the memo attached (Solana Memo program), then retry with header ''X-Payment-Tx: <transaction signature>'' and query parameter ''toll_memo=<memo>''.'
requestBody:
content:
application/json:
schema:
type: object
properties:
series_list:
type: array
description: array (required) - 1..100 detect bodies, each {series, timestamps?, sensitivity?}; <= 100,000 points total
items:
type: string
required:
- series_list
x-payment-info:
protocols:
- x402
price:
mode: fixed
currency: USD
amount: '0.25'
security:
- x402Payment: []
operationId: postTollAnomalyBatch
x-operation-id-source: derived
/toll/anomaly/detect:
post:
tags:
- Anomaly Detection
summary: Detect anomalies in one numeric time series
responses:
'200':
description: Success. Response shape is documented in the service catalog (GET /health on the service).
content:
application/json:
example:
results:
- index: 0
value: 10
score: 0.22483025315886906
robust_z: -0.22483025315886906
is_anomaly: false
signals: []
- index: 1
value: 10.2
score: 0.6744907594765912
robust_z: 0.6744907594765912
is_anomaly: false
signals: []
- index: 2
value: 9.8
score: 1.1241512657943293
robust_z: -1.1241512657943293
is_anomaly: false
signals: []
- index: 3
value: 10.1
score: 0.22483025315886107
robust_z: 0.22483025315886107
is_anomaly: false
signals: []
- index: 4
value: 42
score: 143.66653176851528
robust_z: 143.66653176851528
is_anomaly: true
signals:
- robust_z
- iqr_fence
- step_change
- index: 5
value: 10
score: 0.22483025315886906
robust_z: -0.22483025315886906
is_anomaly: true
signals:
- step_change
- index: 6
value: 9.9
score: 0.6744907594765992
robust_z: -0.6744907594765992
is_anomaly: false
signals: []
- index: 7
value: 10.3
score: 1.1241512657943293
robust_z: 1.1241512657943293
is_anomaly: false
signals: []
series_length: 8
flagged_count: 2
method:
algorithm: median_mad_robust_z + iqr_fence + step_change
method_version: anomaly-1
statistics_scope: global_whole_series
sensitivity: standard
z_cutoff: 3.5
iqr_multiplier: 1.5
step_cutoff: 3.5
spread_source: mad
mad_sigma_factor: 1.4826
thresholds_calibrated: false
thresholds_note: UNCALIBRATED DEFAULTS — see honesty section of the design/catalogue.
envelope:
v: 1
service: anomaly
as_of: '2026-10-21T21:17:05.168Z'
source: Caller-submitted series scored in memory by the anomaly-1 method (median/MAD robust z + IQR fences + step change over first differences); global whole-series statistics; thresholds are UNCALIBRATED DEFAULTS
grade: derived
max_age_seconds: 30
changes:
supported: false
'402':
description: 'Payment Required (x402). The PAYMENT-REQUIRED response header carries the x402 v2 PaymentRequired object (base64 JSON: scheme, CAIP-2 network, amount, asset, payTo, plus the bazaar discovery extension); the response body carries the same challenge in x402 v1 form for compatibility, naming the SOL recipient and USDC token account on Solana plus a fresh memo. To pay on this service''s rail: pay with the memo attached (Solana Memo program), then retry with header ''X-Payment-Tx: <transaction signature>'' and query parameter ''toll_memo=<memo>''.'
requestBody:
content:
application/json:
schema:
type: object
properties:
series:
type: array
description: array (required) - the numeric series to score, in order (8..10,000 finite numbers)
items:
type: string
timestamps:
type: array
description: array - optional opaque labels, exactly series.length elements, echoed verbatim per point; never parsed or used in computation
items:
type: string
sensitivity:
type: string
description: 'string - threshold preset: relaxed flags fewer, standard is the default, strict flags more'
required:
- series
x-payment-info:
protocols:
- x402
price:
mode: fixed
currency: USD
amount: '0.01'
security:
- x402Payment: []
operationId: postTollAnomalyDetect
x-operation-id-source: derived
components:
securitySchemes:
x402Payment:
type: apiKey
in: header
name: X-Payment-Tx
description: 'x402 toll payment proof: the Solana transaction signature of a payment carrying the memo from the 402 challenge; send together with ?toll_memo=<memo>. Payment itself is made on-chain in SOL or USDC to the recipient named in the challenge.'