Blockchain.com
Bitcoin block explorer data, network statistics, market data, the Blockchain.com Exchange (REST + WebSocket) trading platform, and the Pay Partner API for crypto purchases.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Blockchain.com the way a machine reads it — 239 machine-readable artifacts across 12 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 51.9/100 (developing), with a separate agent-readiness read of 61/100 (agent native). 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
How this is scored →scored 2026-07-27 · rubric v0.5
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 12
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 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 Payments API
Authenticated account balances, deposits, withdrawals, beneficiaries.
Blockchain.com Pools API
Mining pool distribution.
Blockchain.com Stats API
Real-time blockchain statistics.
Blockchain.com Trading API
Authenticated order management and trade history.
Blockchain.com Transactions API
Bitcoin transaction lookups.
Scroll within the panel for all 12 ·
Open Collections 3
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).
Blockchain.com Charts, Stats & Market Data API
OPEN COLLECTIONBlockchain.com Blockchain Data API
OPEN COLLECTIONBlockchain.com Exchange REST API
OPEN COLLECTIONPricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the six things the Kin Score reads for commercial clarity.
Published pricing tiers and plan structures.
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 Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.
Cost, billing, and metering signals for API financial operations.
Blockchain Finops
FINOPSEvent 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.
Blockchain.com WebSocket APIs
Real-time WebSocket APIs published by Blockchain.com covering two distinct surfaces: 1. Bitcoin / blockchain.info Explorer WebSocket — subscribe to unconfirmed transactions, new...
ASYNCAPISemantic Vocabularies 4
JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.
JSON-LD contexts and semantic vocabularies used across these APIs.
Spectral Rules 3
Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.
Blockchain.com API Rules
SPECTRALBlockchain.com API Rules
SPECTRALBlockchain.com API Rules
SPECTRALJSON Schema 70
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.
ChartPoint
JSON SCHEMAChart
JSON SCHEMAPoolDistribution
JSON SCHEMAStats
JSON SCHEMATickerEntry
JSON SCHEMATicker
JSON SCHEMABitcoinBlockMessagePayload
JSON SCHEMABitcoinOpAddrSubPayload
JSON SCHEMABitcoinOpAddrUnsubPayload
JSON SCHEMABitcoinOpBlocksSubPayload
JSON SCHEMABitcoinOpBlocksUnsubPayload
JSON SCHEMABitcoinOpOpReturnSubPayload
JSON SCHEMABitcoinOpPingBlockPayload
JSON SCHEMABitcoinOpPingPayload
JSON SCHEMABitcoinOpPingTxPayload
JSON SCHEMABitcoinOpUnconfirmedSubPayload
JSON SCHEMABitcoinOpUnconfirmedUnsubPayload
JSON SCHEMABitcoinUtxMessagePayload
JSON SCHEMAExchangeAdminEventPayload
JSON SCHEMAExchangeAuthRejectedPayload
JSON SCHEMAExchangeAuthSubscribePayload
JSON SCHEMAExchangeAuthSubscribedPayload
JSON SCHEMAExchangeBalancesSnapshotPayload
JSON SCHEMAExchangeCancelOrderRequestPayload
JSON SCHEMAExchangeExecutionReportPayload
JSON SCHEMAExchangeHeartbeatUpdatePayload
JSON SCHEMAExchangeL2EventPayload
JSON SCHEMAExchangeL3EventPayload
JSON SCHEMAExchangeNewOrderSinglePayload
JSON SCHEMAExchangeOrderMassCancelRequestPayload
JSON SCHEMAExchangeOrderMassStatusRequestPayload
JSON SCHEMAExchangeOrder
JSON SCHEMAExchangePricesUpdatePayload
JSON SCHEMAExchangeSubscribeActionPayload
JSON SCHEMAExchangeSubscribePricesActionPayload
JSON SCHEMAExchangeSubscribeSymbolActionPayload
JSON SCHEMAExchangeSymbolUpdatePayload
JSON SCHEMAExchangeSymbolsSnapshotPayload
JSON SCHEMAExchangeTickerSnapshotPayload
JSON SCHEMAExchangeTradeUpdatePayload
JSON SCHEMAExchangeTradingRejectedPayload
JSON SCHEMAExchangeTradingSnapshotPayload
JSON SCHEMAExchangeTradingSubscribePayload
JSON SCHEMAAddress
JSON SCHEMABlockListResponse
JSON SCHEMABlock
JSON SCHEMALatestBlock
JSON SCHEMAMultiAddressResponse
JSON SCHEMATransaction
JSON SCHEMATxInput
JSON SCHEMATxOutput
JSON SCHEMAUnspentOutput
JSON SCHEMAUnspentResponse
JSON SCHEMAAccount
JSON SCHEMABeneficiary
JSON SCHEMACreateOrderRequest
JSON SCHEMACreateWithdrawalRequest
JSON SCHEMADepositAddress
JSON SCHEMADeposit
JSON SCHEMAFees
JSON SCHEMAFill
JSON SCHEMAOrderBook
JSON SCHEMAOrder
JSON SCHEMAPriceLevel
JSON SCHEMASymbol
JSON SCHEMATicker
JSON SCHEMATrade
JSON SCHEMAWhitelistCapability
JSON SCHEMAWhitelist
JSON SCHEMAWithdrawal
JSON SCHEMAScroll within the panel for all 70 ·
JSON Structure 70
JSON Structure captures the data shapes in a form built for tooling — a complement to JSON Schema that keeps the model machine-legible.
JSON Structure definitions describing this provider's data shapes.
Charts Stats Chart Point Structure
JSON STRUCTURECharts Stats Chart Structure
JSON STRUCTURECharts Stats Pool Distribution Structure
JSON STRUCTURECharts Stats Stats Structure
JSON STRUCTURECharts Stats Ticker Entry Structure
JSON STRUCTURECharts Stats Ticker Structure
JSON STRUCTURECom Bitcoin Block Message Payload Structure
JSON STRUCTURECom Bitcoin Op Addr Sub Payload Structure
JSON STRUCTURECom Bitcoin Op Addr Unsub Payload Structure
JSON STRUCTURECom Bitcoin Op Blocks Sub Payload Structure
JSON STRUCTURECom Bitcoin Op Blocks Unsub Payload Structure
JSON STRUCTURECom Bitcoin Op Op Return Sub Payload Structure
JSON STRUCTURECom Bitcoin Op Ping Block Payload Structure
JSON STRUCTURECom Bitcoin Op Ping Payload Structure
JSON STRUCTURECom Bitcoin Op Ping Tx Payload Structure
JSON STRUCTURECom Bitcoin Op Unconfirmed Sub Payload Structure
JSON STRUCTURECom Bitcoin Op Unconfirmed Unsub Payload Structure
JSON STRUCTURECom Bitcoin Utx Message Payload Structure
JSON STRUCTURECom Exchange Admin Event Payload Structure
JSON STRUCTURECom Exchange Auth Rejected Payload Structure
JSON STRUCTURECom Exchange Auth Subscribe Payload Structure
JSON STRUCTURECom Exchange Auth Subscribed Payload Structure
JSON STRUCTURECom Exchange Balances Snapshot Payload Structure
JSON STRUCTURECom Exchange Cancel Order Request Payload Structure
JSON STRUCTURECom Exchange Execution Report Payload Structure
JSON STRUCTURECom Exchange Heartbeat Update Payload Structure
JSON STRUCTURECom Exchange L2Event Payload Structure
JSON STRUCTURECom Exchange L3Event Payload Structure
JSON STRUCTURECom Exchange New Order Single Payload Structure
JSON STRUCTURECom Exchange Order Mass Cancel Request Payload Structure
JSON STRUCTURECom Exchange Order Mass Status Request Payload Structure
JSON STRUCTURECom Exchange Order Structure
JSON STRUCTURECom Exchange Prices Update Payload Structure
JSON STRUCTURECom Exchange Subscribe Action Payload Structure
JSON STRUCTURECom Exchange Subscribe Prices Action Payload Structure
JSON STRUCTURECom Exchange Subscribe Symbol Action Payload Structure
JSON STRUCTURECom Exchange Symbol Update Payload Structure
JSON STRUCTURECom Exchange Symbols Snapshot Payload Structure
JSON STRUCTURECom Exchange Ticker Snapshot Payload Structure
JSON STRUCTURECom Exchange Trade Update Payload Structure
JSON STRUCTURECom Exchange Trading Rejected Payload Structure
JSON STRUCTURECom Exchange Trading Snapshot Payload Structure
JSON STRUCTURECom Exchange Trading Subscribe Payload Structure
JSON STRUCTUREData Api Address Structure
JSON STRUCTUREData Api Block List Response Structure
JSON STRUCTUREData Api Block Structure
JSON STRUCTUREData Api Latest Block Structure
JSON STRUCTUREData Api Multi Address Response Structure
JSON STRUCTUREData Api Transaction Structure
JSON STRUCTUREData Api Tx Input Structure
JSON STRUCTUREData Api Tx Output Structure
JSON STRUCTUREData Api Unspent Output Structure
JSON STRUCTUREData Api Unspent Response Structure
JSON STRUCTUREExchange Account Structure
JSON STRUCTUREExchange Beneficiary Structure
JSON STRUCTUREExchange Create Order Request Structure
JSON STRUCTUREExchange Create Withdrawal Request Structure
JSON STRUCTUREExchange Deposit Address Structure
JSON STRUCTUREExchange Deposit Structure
JSON STRUCTUREExchange Fees Structure
JSON STRUCTUREExchange Fill Structure
JSON STRUCTUREExchange Order Book Structure
JSON STRUCTUREExchange Order Structure
JSON STRUCTUREExchange Price Level Structure
JSON STRUCTUREExchange Symbol Structure
JSON STRUCTUREExchange Ticker Structure
JSON STRUCTUREExchange Trade Structure
JSON STRUCTUREExchange Whitelist Capability Structure
JSON STRUCTUREExchange Whitelist Structure
JSON STRUCTUREExchange Withdrawal Structure
JSON STRUCTUREScroll within the panel for all 70 ·
Examples 69
Real request and response payloads are what turn a spec from abstract into obvious — and they're one of the twelve things an agent needs to call an API correctly on the first try.
Example request and response payloads for these APIs.
Charts Stats Chart Example
EXAMPLECharts Stats Stats Example
EXAMPLECharts Stats Ticker Example
EXAMPLECom Exchange Order Example
EXAMPLEData Api Address Example
EXAMPLEData Api Block Example
EXAMPLEData Api Transaction Example
EXAMPLEData Api Tx Input Example
EXAMPLEData Api Tx Output Example
EXAMPLEExchange Account Example
EXAMPLEExchange Beneficiary Example
EXAMPLEExchange Deposit Example
EXAMPLEExchange Fees Example
EXAMPLEExchange Fill Example
EXAMPLEExchange Order Book Example
EXAMPLEExchange Order Example
EXAMPLEExchange Price Level Example
EXAMPLEExchange Symbol Example
EXAMPLEExchange Ticker Example
EXAMPLEExchange Trade Example
EXAMPLEExchange Whitelist Example
EXAMPLEExchange Withdrawal Example
EXAMPLEScroll within the panel for all 69 ·
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.
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.
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.
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 4
Pagination, idempotency, versioning, errors, and events
Build 2
SDKs, sample code, and the tooling you integrate with
Access & Security 3
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 1
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 · machine-readable index on apis.io