freeapis

Chainpoint

Chainpoint is a global network for anchoring data to the Bitcoin blockchain

Authentication
No auth
HTTPS
Yes
CORS
Unknown
Category
Blockchain

Overview

Chainpoint (Tierion) anchored data hashes to the Bitcoin blockchain — verify documents at a timestamp.

⚠️ Status (verified 2026-08): chainpoint.org returns HTTP 301 redirects to its homepage/index — the public service appears to be discontinued (Tierion wound down). Do not build new projects on it.

What it used to provide

curl "https://chainpoint.org/api/v1/hashes"

Alternatives

  • Blockchain (listed on this site) — Bitcoin data.
  • Public timestamping: OpenTimestamps (opentimestamps.org).

FAQ

Is Chainpoint working? Our 2026-08 test got 301s to the homepage — treat it as discontinued.

Was it free? The API was free (chainpoint nodes).

What replaced it? OpenTimestamps and similar anchoring services.

More in Blockchain

APIAuthHTTPSCORS
Bitquery

Onchain GraphQL APIs & DEX APIs

API KeyYesYes
Blockscout

Multichain block explorer REST API (with Etherscan-compatible JSON-RPC)

API KeyYesNo
Chainlink

Build hybrid smart contracts with Chainlink

No authYesUnknown
ClearTrace

Cross-frontend DEX attribution and execution quality data across Ethereum and L2s

No authYesYes
Covalent

Multi-blockchain data aggregator platform

API KeyYesUnknown