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Blockchain.com website screenshot

Blockchain.com

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.

agent ready

Solid contracts, transparent operations, and an easy start — typically complete on four or five facets with one clear soft spot.

Kin Score

API Evangelist profiles Blockchain.com the way a machine reads it — 37 machine-readable artifacts across 18 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.

Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Blockchain.com scores 59.4/100 (strong), with a separate agent-readiness read of 49/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.

Kin Score

This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 59.4/100 · strong
Contract Quality 15.7 / 25
Developer Ergonomics 12.5 / 20
Commercial Clarity 10.5 / 20
Operational Transparency 7.9 / 13
Governance 1.4 / 12
Discoverability 9.3 / 10
Regulatory · Payments 10.8 / 15
Agent readiness — 49/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract derived 2.5 / 10
MCP Server derived 3.0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics documented 4.0 / 8
Request/Response Examples partial 3.5 / 7
Rate-Limit Signaling documented 3.5 / 7
Typed Event Surface 6 / 6
Agent Skills derived 1.3 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 3 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Blockchain.com Kin Score — API readiness rating by API Evangelist

Put this on your own site. The badge is drawn live from Blockchain.com's current Kin Score — paste it once and it updates itself every time the score is recomputed. It follows your visitor's light or dark setting, and it links back here so anyone who sees it can read the full breakdown.

<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/blockchain.com/"
   title="Blockchain.com on API Evangelist — API profile and Kin Score">
  <img src="https://apis.io/badge/blockchain.com.svg"
       alt="Blockchain.com Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>

More shapes, themes and sizes → · Score as JSON · How badges work

How we profile Blockchain.com

Each block below is one kind of artifact we hold for Blockchain.com. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.

APIs 18

Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.

Individual APIs this provider publishes, each with its own machine-readable definition.

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

Scroll within the panel for all 18 ·

Open Collections 10

Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Scroll within the panel for all 10 ·

MCP Servers 1

Model Context Protocol servers expose these APIs directly to AI agents. We profile them because agent-native access is the fastest-growing way this provider's capabilities actually get used.

Model Context Protocol servers that expose these APIs to AI agents.

Rate Limits 1

Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.

Documented rate limits and quota policies.

Blockchain.Com Rate Limits

2 limits

RATE LIMITS

Event Specifications 1

Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.

AsyncAPI definitions for this provider's event-driven and streaming APIs.

JSON Schema 1

Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.

Standalone JSON Schema definitions for this provider's data models.

Blockchain.Com Pay Webhook Event

0 properties

JSON SCHEMA

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Blockchain.Com Authentication

apiKey/oauth2 · 5 schemes

SECURITY

Blockchain.Com Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Blockchain.Com Vulnerability Disclosure

Hackerone · security.txt · contact published

SECURITY

Scopes 1

OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.

OAuth scopes governing access to this provider's APIs.

Blockchain.Com Scopes

2 scopes

2 scopes

SCOPES

Agentic Access 1

An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.

Recommended x-agentic-access execution contracts for AI agents.

Blockchain.Com Agentic Access

35 operations · 5 acting

35 operations · 5 acting

AGENTIC

Resources

Every other property we hold for Blockchain.com — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.

Get Started 3

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Build 3

SDKs, sample code, and the tooling you integrate with

Operate 3

Status, limits, changes, and where to get help

Commercial 3

Pricing, plans, and the legal terms of use

Company 2

The organization behind the API

Other 1

Properties that don't map to a standard resource type

← All providers · Data indexed from github.com/api-evangelist/blockchain.com · machine-readable index on apis.io

Where this information came from

This is an independent, third-party profile of Blockchain.com, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.