AsterPay Data API

openapi: 3.2.0
info:
  title: Asterpay Io Data API
  version: 3.1.0
  contact:
    name: AsterPay
    url: https://asterpay.io
    email: petteri@asterpay.io
  x-guidance: 'AsterPay is an API for AI agents: Know Your Agent trust scoring, crypto market data, AI text tools, and USDC to EUR settlement (SEPA Instant).


    HOW TO PAY: call any endpoint; an unpaid call returns 402 with an `accepts` array. Pay in USDC on any listed chain (Base, Ethereum, Polygon, Arbitrum, Optimism, SKALE) via x402 (resend with a PAYMENT-SIGNATURE header, SDK @x402/fetch) or MPP (Authorization: Payment, SDK mppx). No API key, no signup.

    FIRST CALL FREE: a wallet that has never paid AsterPay gets its first sub-$0.03 paid call for $0. Send a normally signed payment; it is verified but never settled. Your wallet must still hold the price so your client will sign.


    FREE (no payment): GET /v1/agent/discovery (full catalog), GET /v2/x402/market/rates, POST /v1/ai/fact-check (claim vs supplied source text).


    FREE DAILY QUOTA, then $0.0075 (25 unpaid calls per IP per UTC day; response headers X-Free-Quota-Limit / X-Free-Quota-Remaining):

    - GET /v1/agent/trust-score/{address}: agent trust score 0-100 with breakdown

    - GET /v1/agent/verify/{address}: ERC-8004 identity check

    - GET /v1/agent/tier/{address}: trust tier

    - GET /v1/settlement/estimate?amount={usdc} and GET /v2/x402/offramp/estimate?amount={usdc}: EUR settlement quote


    PAID:

    - GET /v1/agent/deep-analysis/{address} $0.015: behavioral analysis of an agent wallet; POST /v1/agent/trust-score/batch $0.03

    - GET /v1/crypto/token-analysis/{address} $0.15, GET /v1/crypto/wallet-score/{address} $0.075, GET /v1/crypto/whale-alerts $0.03

    - GET /v1/market/price/{symbol} $0.0075, GET /v1/market/ohlcv/{symbol} $0.015, GET /v1/market/trending $0.0075, GET /v2/x402/crypto/prices $0.0075

    - POST /v1/ai/summarize $0.006, POST /v1/ai/sentiment $0.006, POST /v1/ai/translate $0.03, POST /v1/ai/code-review $0.075

    - GET /v2/x402/agent-readiness?url={site} $0.03: agent-readiness scan of any website


    - DATA DOORS (GET /v1/data, free catalog): EU merchant verification GET /v1/data/company/verify/{vatId} $0.05 (VIES + register + LEI, one verdict), company profile $0.015 and change signals $0.03, EU tenders GET /v1/data/tenders/eu/{country}/{cpv} $0.02, plus FX, energy, macro, stablecoins, security and risk feeds from $0.0015.

    WATCHLIST LOOP: tenders and company/signals take ?since=YYYY-MM-DD and return next_since. Poll once a day with the previous next_since and you pay only for new notices or events (e.g. 100 country/CPV keys = $2/day). Recipe: https://x402.asterpay.io/llms.txt#watchlist


    WHEN TO CALL: run company/verify before paying an EU merchant and trust-score before paying an unknown agent; use settlement/estimate to price USDC to EUR before an off-ramp; use market and AI endpoints as pay-per-call utilities.

    Full reference: https://x402.asterpay.io/llms.txt'
  description: 'Operations tagged data across 2 of this provider''s published API definitions: asterpay_io_openapi.json, asterpay-io-openapi.json. Each path carries the servers of the definition it was published in.'
servers:
- url: https://x402.asterpay.io
tags:


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# Full source: https://artifacts.apis.io/asterpay-io/openapi/asterpay-io-data-api-openapi.yml