# Blockchain.com **Canonical:** https://apis.io/providers/blockchain.com/ **Website:** https://www.blockchain.com/ **APIs profiled:** 11 Blockchain.com is a cryptocurrency financial services company that operates the Blockchain.com Explorer (one of the longest-running Bitcoin block explorers), a self-custody and custodial wallet, an institutional spot exchange, and Blockchain.com Pay, an embeddable fiat-to-crypto on-ramp and off-ramp for partners. Its public API surface spans the Exchange REST API (market data, trading, deposits and withdrawals, authenticated with an X-API-Token header), a FIX-named WebSocket trading and market-data gateway, the Pay Partner API (eligibility, quotes and orders, authenticated with public and private API key headers plus order webhooks), the free Blockchain Data, Simple Query, Exchange Rates and Charts & Statistics APIs on blockchain.info, a real-time blockchain WebSocket notification stream, an NFT Market API, and the open-source Wallet API service (service-my-wallet-v3) with first-party client libraries for Python, Node.js, Ruby, PHP and Java. ## Kin Score — 53.1 / 100 (developing) Scored 2026-09-21 under rubric 0.22.0. Trend: flat (+0.0 from 53.1). | Facet | Score | |---|---| | Discoverability | 81.5 | | Contract Quality | 44.9 | | Contract Governance | 4.5 | | Operational Transparency | 52.6 | | Developer Ergonomics | 66.1 | | Access Clarity | 39.5 | Regulatory layer — **Payments**: 71.9 (matched via tags). ## Agent readiness — 32.1 (agent-ready) | Dimension | Value | |---|---| | Spec Presence | yes | | Agentic Access | derived | | Reversibility Documented | documented | | MCP Server | no | | Auth Clarity | bearer | | Idempotency | no | | Error Semantics | documented | | OpenAPI Examples | partial | | Rate Limit Signal | documented | | Event Surface Described | yes | | Agent Skills | derived | | Well Known Catalog | no | | Consent Identity | no | | Agent Card | no | | Dry Run Mode | no | | Delegated Identity | no | | Protected Resource Metadata | no | | Dynamic Client Registration | no | | Agentic Commerce | no | ## Access Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium). ## APIs (28) - **Blockchain.com Exchange WebSocket API** — Real-time WebSocket gateway for the Blockchain.com Exchange. Anonymous channels stream heartbeat, L2/L3 order books, prices, symbols, ticker and trades; authenticated channels c... - **Blockchain Data API** — Free JSON API over the Blockchain.com Explorer data set — single blocks, transactions, addresses, unspent outputs, block height and latest block queries for Bitcoin. - **Blockchain.com Simple Query API** — Plain-text query API returning single values for blockchain statistics such as block count, difficulty, hash rate, total bitcoins in circulation, market cap and address balances. - **Blockchain.com Exchange Rates API** — Ticker and currency-conversion API returning bitcoin exchange rates across major fiat currencies, aggregated from the major exchanges. - **Blockchain.com Charts and Statistics API** — JSON/CSV feed behind the Blockchain.com charts and stats pages — per-chart time series, network statistics, and mining pool distribution. - **Blockchain.com Explorer WebSocket API** — Low-latency streaming socket channel providing notifications on new bitcoin blocks, unconfirmed transactions and watched addresses via the unconfirmed_sub, blocks_sub and addr_s... - **Blockchain.com NFT Market API** — Public backend service for NFT market data, returning NFT assets owned by an address and individual asset lookups by network, contract address and token id. Publishes a Swagger ... - **Blockchain.com OAuth Resources API** — OAuth 2.0 resource gateway that lets a third-party app read a consenting user's Blockchain.com custodial wallet data. Two endpoints are documented — transaction history (scope r... - **Blockchain.com Wallet API** — Open-source Wallet API service (service-my-wallet-v3) that runs locally and exposes HTTP endpoints for creating wallets, sending payments, and checking balances against Blockcha... - **Blockchain.com Eligibility API** — Available currencies, regions, and payment methods for the partner account. - **Blockchain.com Nft API** — The nft API from Blockchain.com — 1 operation(s) for nft. - **Blockchain.com Nft V2 API** — The nft_v2 API from Blockchain.com — 2 operation(s) for nft_v2. - **Blockchain.com Orders API** — Order listing and lookup. - **Blockchain.com Payments API** — Get account status and initiate deposits and withdrawals - **Blockchain.com Public API** — The Public API from Blockchain.com — 3 operation(s) for public. - **Blockchain.com Quote API** — Real-time buy quotes. - **Blockchain.com Trading API** — Post orders and get information about historical trades - **Blockchain.com Unauthenticated API** — Retrieve current prices and markets - **Blockchain.com WebSocket APIs** — Real-time WebSocket APIs covering two distinct surfaces — the Bitcoin / blockchain.info explorer socket (unconfirmed transactions, new blocks, per-address activity) and the Bloc... - **Blockchain.com Pay Partner API** — Partner API for embedding Blockchain.com crypto purchases. Covers authentication, eligibility (supported currencies / regions), quotes (pricing for crypto transactions), and ord... - **Blockchain.com Addresses API** — Bitcoin address summaries and unspent outputs. - **Blockchain.com Blocks API** — Bitcoin block lookups and the latest block. - **Blockchain.com Charts API** — Historical time-series datasets for Bitcoin network metrics. - **Blockchain.com Market Data API** — Bitcoin exchange rates and fiat conversion. - **Blockchain.com Network API** — Simple network metrics — difficulty, block height, supply, ETA, averages. - **Blockchain.com Pools API** — Mining pool distribution. - **Blockchain.com Stats API** — Real-time blockchain statistics. - **Blockchain.com Transactions API** — Bitcoin transaction lookups. ## Agentic access (1) - **Blockchain.Com Agentic Access** — 35 operations · 5 acting ## Security (3) - **Blockchain.Com Authentication** — apiKey/oauth2 · 5 schemes - **Blockchain.Com Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC - **Blockchain.Com Vulnerability Disclosure** — Hackerone · security.txt · contact published ## Tags Cryptocurrency, Bitcoin, Blockchain, Exchange, Trading, Market Data, Payments, On-Ramp, Wallets, Block Explorer, Fintech, Webhook --- Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/blockchain.com/). Scores are computed from the provider's own public artifacts under a published rubric.