ExchangeRebel Ergonomics 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: Ergonomics
paths:
  /toll/ergonomics:
    get:
      tags:
      - Ergonomics
      summary: Tool-Description Ergonomics Audit service catalog
      responses:
        '200':
          description: 'Success. Returns the service catalog: what a tool-ergonomics audit includes, the prices, and the scope statement (This audit grades measurable document properties of the submitted manifest only — description discrimination, parameter specification, definition-token economics, and naming hygiene — against the published tool-ergonomics/v1 rules. It never runs the tools, never queries a model, and never measures or promises any model''s selection accuracy or any task''s success. Properties that require judgement — prose elegance, task-fit, and naming taste — are NOT graded in v1, and no result in this report is a judgement of them.)'
      security: []
      operationId: getTollErgonomics
      x-operation-id-source: derived
  /toll/ergonomics/health:
    get:
      tags:
      - Ergonomics
      summary: Tool-Description Ergonomics Audit service health
      responses:
        '200':
          description: Success. Returns service liveness and the report signer address.
      security: []
      operationId: getTollErgonomicsHealth
      x-operation-id-source: derived
  /toll/ergonomics/criteria:
    get:
      tags:
      - Ergonomics
      summary: The published tool-ergonomics scoring criteria
      responses:
        '200':
          description: 'Success. Returns the full published criteria (tool-ergonomics/v1): description discrimination, parameter specification, definition-token economics, and naming hygiene — every threshold published with its evidence class; every audit is reproducible from them.'
      security: []
      operationId: getTollErgonomicsCriteria
      x-operation-id-source: derived
  /toll/ergonomics/precheck:
    post:
      tags:
      - Ergonomics
      summary: Free headline tool-ergonomics pre-check of an MCP tool manifest
      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).
                manifest:
                  description: 'The MCP server''s tools/list manifest document, in any accepted shape: { tools: [...] }, { result: { tools: [...] } }, or a bare array of tools. Mutually exclusive with url. Submitted content is processed in memory only and never stored.'
                url:
                  type: string
                  description: The URL of a tools/list JSON document to fetch (read-only GET, 512 KB / 10 s caps) and grade as the manifest. Mutually exclusive with manifest.
              required:
              - caller
      responses:
        '200':
          description: 'Success. Returns the headline counts ONLY: tool count, definition-token total, flagged-pair count, and undescribed-parameter count. No verdict, no band, no sections, no per-tool evidence, no fix list. When the caller''s free allowance is exhausted, the response is the /toll/ergonomics/audit payment challenge instead.'
      security: []
      operationId: postTollErgonomicsPrecheck
      x-operation-id-source: derived
  /toll/ergonomics/audit:
    post:
      tags:
      - Ergonomics
      summary: Full tool-ergonomics audit report for one submitted MCP manifest
      requestBody:
        content:
          application/json:
            schema:
              type: object
              properties:
                manifest:
                  description: 'The MCP server''s tools/list manifest document, in any accepted shape: { tools: [...] }, { result: { tools: [...] } }, or a bare array of tools. Mutually exclusive with url. Submitted content is processed in memory only and never stored.'
                url:
                  type: string
                  description: The URL of a tools/list JSON document to fetch (read-only GET, 512 KB / 10 s caps) and grade as the manifest. Mutually exclusive with manifest.
      responses:
        '200':
          description: 'Success. Returns the full signed report: the categorical verdict band under the published criteria (tool-ergonomics/v1), per-section counted flags with evidence, per-tool rows, and a concrete ordered fix list. Submitted manifest content is processed in memory only and never stored.'
        '402':
          description: 'Payment Required (x402). A per-item fee: $0.05 buys one full tool-ergonomics audit report for one submitted MCP manifest. The response body carries the payment instructions in x402 v1 form: payTo (the operator''s Solana wallet), the amount (50000 USDC units = $0.05) and a fresh memo. Pay in USDC on Solana with the memo attached via the Solana Memo program, then resubmit the same audit request with the payment transaction in the X-Payment-Tx header and ?toll_memo=<memo>, re-sending the same manifest (or manifest URL) in 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: '0.05'
      security:
      - x402Payment: []
      operationId: postTollErgonomicsAudit
      x-operation-id-source: derived
  /toll/ergonomics/metrics:
    get:
      tags:
      - Ergonomics
      summary: Tool-Description Ergonomics Audit aggregate counters
      responses:
        '200':
          description: Success. Returns aggregate counters (paid audits, distinct payers, free pre-checks today). Aggregate only — no payer identities.
      security: []
      operationId: getTollErgonomicsMetrics
      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.'