Messari API — The Institutional Standard for Crypto Data

https://api.messari.io

● healthy ai

Access standardized crypto data trusted by top exchanges, asset managers, and financial institutions. Messari’s enterprise‑grade API delivers real‑time market data, on‑chain analytics, and curated intelligence - all through a single, reliable API

How to call

cURL · x402-fetch / x402-axios will auto-handle 402

curl -X POST https://api.messari.io

/.well-known/x402.json

https://api.messari.io/.well-known/x402