ExchangeRebel Ledger Check API

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: Ledger Check
paths:
  /toll/ledger-check:
    get:
      tags:
      - Ledger Check
      summary: Ledger-Line Completeness service catalog
      responses:
        '200':
          description: 'Success. Returns the service catalog: what a ledger-line census includes, the price ($0.01 per sample), the published criteria (settlement-evidence/v1), the pinned test corpus, and the scope statement (a deterministic field-presence census over the one submitted payments-ledger sample - seven fields graded present / absent / pending per line; presence only, never truth).'
      security: []
      operationId: getTollLedgerCheck
      x-operation-id-source: derived
  /toll/ledger-check/health:
    get:
      tags:
      - Ledger Check
      summary: Ledger-Line Completeness service health
      responses:
        '200':
          description: Success. Returns service liveness and the report signer address.
      security: []
      operationId: getTollLedgerCheckHealth
      x-operation-id-source: derived
  /toll/ledger-check/criteria:
    get:
      tags:
      - Ledger Check
      summary: The published ledger-line completeness criteria
      responses:
        '200':
          description: 'Success. Returns the full published criteria (settlement-evidence/v1): the seven graded fields and their presence rules, the census form, and the pinned public test corpus identity; every report is reproducible from them.'
      security: []
      operationId: getTollLedgerCheckCriteria
      x-operation-id-source: derived
  /toll/ledger-check/corpus:
    get:
      tags:
      - Ledger Check
      summary: The pinned public test corpus identity
      responses:
        '200':
          description: 'Success. Returns the public test corpus identity for the ledger-line census: corpus id ledger-evidence-corpus/v1 and its SHA-256 pin d5d922924f9045634f7614fa35a4b2d477f7d0c2d0f23af20fcba116a0d2ad2d (the SHA-256 of the corpus''s canonical serialization, verifiable with the published harness). The corpus is buyer-runnable before paying.'
      security: []
      operationId: getTollLedgerCheckCorpus
      x-operation-id-source: derived
  /toll/ledger-check/precheck:
    post:
      tags:
      - Ledger Check
      summary: Free headline pre-check of one ledger sample
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                caller:
                  type: string
                  description: Solana base58 wallet of the operator; keys the free allowance (100/day per wallet).
                sample:
                  type: object
                  description: 'The one payments-ledger sample to census: {lines: [ <ledger line objects> ]}. Processed in memory only, never stored.'
              required:
              - caller
              - sample
      responses:
        '200':
          description: 'Success. Returns assessability only: whether the sample is in the published form. No line is graded and no census is returned. When the caller''s free allowance is exhausted, the response is the /toll/ledger-check/check payment challenge instead.'
      security: []
      operationId: postTollLedgerCheckPrecheck
      x-operation-id-source: derived
  /toll/ledger-check/check:
    post:
      tags:
      - Ledger Check
      summary: Full signed ledger-line completeness census for one sample
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                sample:
                  type: object
                  description: 'The one payments-ledger sample to census: {lines: [ <ledger line objects> ]}. Processed in memory only, never stored.'
              required:
              - sample
      responses:
        '200':
          description: 'Success. Returns the full signed census: every submitted line graded on seven fields (payer / amount / tx / chain fee / facilitator-credit / house-flag / FX-status), each present, absent, or pending, per line and in summary counts, and an as-of timestamp. The census grades field presence only - it never asserts a present field is true.'
        '402':
          description: 'Payment Required (x402). A per-item fee: $0.01 per sample - each payments-ledger sample you submit is charged at $0.01; the payment includes one ledger-line completeness census over the one payments-ledger sample you submit — every line graded on seven fields (payer / amount / tx / chain fee / facilitator-credit / house-flag / FX-status), each graded present, absent, or pending, per line and in summary counts — and an as-of timestamp. The census grades FIELD PRESENCE only: it never asserts that a present field is true. Nothing about the submitted sample is stored beyond the payments ledger''s closed field list. The response body carries the payment instructions in x402 v1 form: payTo (the operator''s Solana wallet), the amount (10000 USDC units = $0.01 per sample) and a fresh memo. Pay in USDC on Solana with the memo attached via the Solana Memo program, then resubmit the same request with the payment transaction in the X-Payment-Tx header and ?toll_memo=<memo>, re-sending the request body. The PAYMENT-REQUIRED response header carries the same object in x402 v2 form.'
      x-payment-info:
        protocols:
        - x402
        price:
          mode: fixed
          currency: USD
          amount: '0.01'
      security:
      - x402Payment: []
      operationId: postTollLedgerCheckCheck
      x-operation-id-source: derived
  /toll/ledger-check/metrics:
    get:
      tags:
      - Ledger Check
      summary: Ledger-Line Completeness aggregate counters
      responses:
        '200':
          description: Success. Returns aggregate counters (paid checks, distinct payers, free pre-checks today). Aggregate only - no payer identities, no submitted sample content.
      security: []
      operationId: getTollLedgerCheckMetrics
      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.'