API Reference

Chainproven API

Pre-action compliance oracle. One API call returns jurisdiction verdict, OFAC screen, penalty exposure, and a verifiable EAS attestation — before any transaction settles.

Live — p95 <10ms·Base URL: https://chainproven.com/api·Auth: X-API-Key header

Live API Playground

Run a real compliance check against the live engine — no signup required.

curl

curl -X POST https://chainproven.com/api/check \
  -H "Content-Type: application/json" \
  -H "X-API-Key: cp_demo_2026" \
  -d '{ "action": "stablecoin_transfer", "actor": { "declared_jurisdiction": "US", "wallet": "0x1234567890abcdef1234567890abcdef12345678" } }'

Response

Select a scenario and click “Run Live Check”

Endpoints

POST

/api/checkSL-1live

Jurisdiction verdict + OFAC wallet screen + penalty exposure. p95 <10ms (no wallet); <3s with Etherscan on-chain screen. Returns EAS attestation UID on COMPLIANT.

POST

/api/screen/walletSL-1live

OFAC SDN address lookup + US exchange attribution from Etherscan tx history.

GET/POST

/api/kb/searchKBlive

Search the live regulatory KB (81 items, 16 sources, updated daily). Filter by severity and agency.

GET

/api/feeds/regulatoryKBlive

Full regulatory intelligence feed — FCA, EBA, DefiLlama Hacks, CISA KEV, audit firms.

POST

/api/scan/polymarketSL-1live

Polymarket market compliance scan — CFTC event contract prohibition check.

POST

/v1/guardrail/validateSL-2

EU AI Act Article 9 audit artifact. 1,000 calls/mo free tier.

POST

/v1/sentinel/statusSL-5

On-chain EAS attestation status and retrieval.

Authentication

Pass your API key in the X-API-Key header. The demo key cp_demo_2026 is rate-limited and valid for testing.

curl -H "X-API-Key: cp_demo_2026" https://chainproven.com/api/check ...

Full SDK (TypeScript, Python), webhook support, and EAS attestation schemas available to design partners. Request access →

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