Blockscout

Blockscout is an open-source EVM blockchain explorer covering 1,000+ L1, L2, and L3 EVM chains. Each Blockscout instance exposes a REST v1 API (legacy), REST v2 API (recommended), GraphQL API, and an Etherscan-compatible API. The hosted Blockscout PRO API at dev.blockscout.com provides multi-chain access with unified routes, plans, and credit-based metering.

Blockscout publishes 18 APIs on the APIs.io network, including Addresses API, Blocks API, CelestiaService API, and 15 more. Tagged areas include Blockscout, Web3, Explorer, Open Source, and EVM.

Blockscout’s developer surface includes developer portal, documentation, GitHub presence, engineering blog, and 12 more developer resources.

🌐 Visit website 📡 Source on GitHub

26.2/100 thin ▬ flat Agent 33/100 agent ready Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-09-25 · rubric v0.23.0

AccessFreemium

1 APIs 1 MCP Servers

Blockscout Web3 Explorer Open Source EVM Multi-Chain GraphQL RESTEtherscan-CompatibleMCP Agent Skills x402 Agent-Native

Kin Score

Kin Score How this is scored →
scored 2026-09-25 · rubric v0.23.0

Composite quality — 26.2/100 · thin

Contract Quality 7.7 / 19

Developer Ergonomics 4.3 / 15

Access Clarity 2.4 / 15

Operational Transparency 1.3 / 10

Contract Governance 0.0 / 9

Discoverability 5.6 / 8

Regulatory Posture 0.9 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 33/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/blockscout: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 18

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

Blockscout REST API v2

Recommended REST API on each Blockscout instance. Endpoints cover blocks, transactions, addresses, tokens, smart-contract verification, and more. Path varies by chain (eth, opti...

Blockscout GraphQL API

GraphQL API exposing blocks, transactions, addresses, and tokens.

Blockscout Etherscan-Compatible API

Drop-in Etherscan-style RPC API (action / module query parameters) for easy migration.

Blockscout PRO API

Hosted multi-chain Blockscout API with unified routes, plans, and credit-based metering. Replaces the older MyAccount API; old keys do not work on PRO routes.

Blockscout Addresses API

The Addresses API from Blockscout — 15 operation(s) for addresses.

Blockscout Blocks API

The Blocks API from Blockscout — 4 operation(s) for blocks.

Blockscout CelestiaService API

The CelestiaService API from Blockscout — 3 operation(s) for celestiaservice.

Blockscout Config API

The Config API from Blockscout — 1 operation(s) for config.

Blockscout Internal Transactions API

The Internal Transactions API from Blockscout — 1 operation(s) for internal transactions.

Blockscout Main Page API

The Main Page API from Blockscout — 3 operation(s) for main page.

Blockscout Proxy API

The Proxy API from Blockscout — 1 operation(s) for proxy.

Blockscout Search API

The Search API from Blockscout — 2 operation(s) for search.

Blockscout Smart Contracts API

The Smart Contracts API from Blockscout — 3 operation(s) for smart contracts.

Blockscout Stats API

The Stats API from Blockscout — 3 operation(s) for stats.

Blockscout Token Transfers API

The Token Transfers API from Blockscout — 1 operation(s) for token transfers.

Blockscout Tokens API

The Tokens API from Blockscout — 11 operation(s) for tokens.

Blockscout Transactions API

The Transactions API from Blockscout — 8 operation(s) for transactions.

Blockscout Withdrawals API

The Withdrawals API from Blockscout — 1 operation(s) for withdrawals.

Scroll for all 18

Open Collections 16

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

API Collection

OPEN COLLECTION

BlockScout Addresses API

OPEN COLLECTION

BlockScout Addresses Blocks API

OPEN COLLECTION

BlockScout Addresses CelestiaService API

OPEN COLLECTION

BlockScout Addresses Config API

OPEN COLLECTION

BlockScout Addresses Internal Transactions API

OPEN COLLECTION

BlockScout Addresses Main Page API

OPEN COLLECTION

BlockScout Addresses Proxy API

OPEN COLLECTION

BlockScout Addresses Search API

OPEN COLLECTION

BlockScout Addresses Smart Contracts API

OPEN COLLECTION

BlockScout Addresses Stats API

OPEN COLLECTION

BlockScout Addresses Token Transfers API

OPEN COLLECTION

BlockScout Addresses Tokens API

OPEN COLLECTION

BlockScout Addresses Transactions API

OPEN COLLECTION

BlockScout Addresses Withdrawals API

OPEN COLLECTION

BlockScout API

OPEN COLLECTION

Scroll for all 16

MCP Servers 1

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

MCP Server

MCP SERVER

GraphQL 1

GraphQL schemas published by this provider.

Blockscout GraphQL API

GraphQL API exposing blocks, transactions, addresses, and tokens.

GRAPHQL

Pricing Plans 1

Published pricing tiers and plan structures.

Blockscout Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Blockscout Rate Limits

3 limits

RATE LIMITS

FinOps 2

Cost, billing, and metering signals for API financial operations.

Blockscout Finops

FINOPS

Blockscout X402

FINOPS

Security Posture 1

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

Blockscout Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access 1

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

Blockscout Agentic Access

57 operations · 1 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Portal

Portal

DeveloperPortal

DeveloperPortal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

MCPServer

AgentSkill

LlmsText

Build 1

SDKs, sample code, and the tooling you integrate with

GitHub

GitHub

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Other 1

Properties that don't map to a standard resource type

x402

x402

Source (apis.yml)

aid: blockscout
url: https://raw.githubusercontent.com/api-evangelist/blockscout/refs/heads/main/apis.yml
name: Blockscout
kind: company
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/blockscout.png
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-09-20
tags:
- Blockscout
- Web3
- Explorer
- Open Source
- EVM
- Multi-Chain
- GraphQL
- REST
- Etherscan-Compatible
- MCP
- Agent Skills
- x402
- Agent-Native
tags_raw:
- Blockscout
- Web3
- Explorer
- Open Source
- EVM
- Multi-Chain
- GraphQL
- REST
- Etherscan-Compatible
- MCP
- Agent Skills
- x402
- agent-native
- Open-Source
created: '2026-05-08'
modified: '2026-05-08'
specificationVersion: '0.23'
description: Blockscout is an open-source EVM blockchain explorer covering 1,000+ L1, L2, and L3 EVM chains. Each Blockscout
  instance exposes a REST v1 API (legacy), REST v2 API (recommended), GraphQL API, and an Etherscan-compatible API. The hosted
  Blockscout PRO API at dev.blockscout.com provides multi-chain access with unified routes, plans, and credit-based metering.
apis:
- aid: blockscout:rest-api-v2
  name: Blockscout REST API v2
  tags:
  - REST
  - EVM
  - Explorer
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  baseURL: https://eth.blockscout.com/api/v2
  humanURL: https://docs.blockscout.com/devs/apis/rest
  description: Recommended REST API on each Blockscout instance. Endpoints cover blocks, transactions, addresses, tokens,
    smart-contract verification, and more. Path varies by chain (eth, optimism, base, etc.). Free for self-hosted; subject
    to PRO API plans on dev.blockscout.com.
  properties:
  - type: Documentation
    url: https://docs.blockscout.com/devs/apis/rest
  x-features:
  - Modern REST surface
  - Per-chain hosted instances
  - Smart-contract verification
  x-use-cases:
  - Wallet UIs
  - Indexing analytics
  - Block explorer mirroring
- aid: blockscout:graphql-api
  name: Blockscout GraphQL API
  tags:
  - GraphQL
  - EVM
  - Explorer
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  baseURL: https://eth.blockscout.com/api/v1/graphql
  humanURL: https://docs.blockscout.com/devs/apis/graphql
  description: GraphQL API exposing blocks, transactions, addresses, and tokens.
  properties:
  - type: Documentation
    url: https://docs.blockscout.com/devs/apis/graphql
  - url: graphql/blockscout-graphql.md
    type: GraphQL
  x-features:
  - GraphQL queries
  - Block, tx, address, token schema
  x-use-cases:
  - Analytics workflows
  - Custom data slicing
- aid: blockscout:etherscan-compatible-api
  name: Blockscout Etherscan-Compatible API
  tags:
  - Etherscan-Compatible
  - REST
  - Migration
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  baseURL: https://eth.blockscout.com/api
  humanURL: https://docs.blockscout.com/devs/apis/rpc
  description: Drop-in Etherscan-style RPC API (action / module query parameters) for easy migration.
  properties:
  - type: Documentation
    url: https://docs.blockscout.com/devs/apis/rpc
  x-features:
  - Etherscan-compatible action / module routes
  - Simplified migration
  x-use-cases:
  - Migrating Etherscan integrations
  - Compatible tooling
- aid: blockscout:pro-api
  name: Blockscout PRO API
  tags:
  - PRO
  - Multi-Chain
  - Subscription
  tags_raw:
  - Pro
  - Multi-chain
  - Subscription
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  baseURL: https://dev.blockscout.com
  humanURL: https://docs.blockscout.com/devs/apis/pro
  description: Hosted multi-chain Blockscout API with unified routes, plans, and credit-based metering. Replaces the older
    MyAccount API; old keys do not work on PRO routes.
  properties:
  - type: Documentation
    url: https://docs.blockscout.com/devs/apis/pro
  - type: Pricing
    url: https://dev.blockscout.com/pricing
  x-features:
  - Unified multi-chain access
  - Credit-based metering
  - Plan-tier rate limits
  x-use-cases:
  - Cross-chain wallet UIs
  - Aggregator analytics
- aid: blockscout:blockscout-addresses-api
  name: Blockscout Addresses API
  description: The Addresses API from Blockscout — 15 operation(s) for addresses.
  humanURL: https://docs.blockscout.com/devs/apis/rest
  baseURL: https://eth.blockscout.com/api/v2
  tags:
  - Addresses
  properties:
  - type: OpenAPI
    url: openapi/blockscout-addresses-api-openapi.yml
- aid: blockscout:blockscout-blocks-api
  name: Blockscout Blocks API
  description: The Blocks API from Blockscout — 4 operation(s) for blocks.
  humanURL: https://docs.blockscout.com/devs/apis/rest
  baseURL: https://eth.blockscout.com/api/v2
  tags:
  - Blocks
  properties:
  - type: OpenAPI
    url: openapi/blockscout-blocks-api-openapi.yml
- aid: blockscout:blockscout-celestiaservice-api
  name: Blockscout CelestiaService API
  description: The CelestiaService API from Blockscout — 3 operation(s) for celestiaservice.
  humanURL: https://docs.blockscout.com/devs/apis/rest
  baseURL: https://eth.blockscout.com/api/v2
  tags:
  - CelestiaService
  properties:
  - type: OpenAPI
    url: openapi/blockscout-celestiaservice-api-openapi.yml
- aid: blockscout:blockscout-config-api
  name: Blockscout Config API
  description: The Config API from Blockscout — 1 operation(s) for config.
  humanURL: https://docs.blockscout.com/devs/apis/rest
  baseURL: https://eth.blockscout.com/api/v2
  tags:
  - Config
  properties:
  - type: OpenAPI
    url: openapi/blockscout-config-api-openapi.yml
- aid: blockscout:blockscout-internal-transactions-api
  name: Blockscout Internal Transactions API
  description: The Internal Transactions API from Blockscout — 1 operation(s) for internal transactions.
  humanURL: https://docs.blockscout.com/devs/apis/rest
  baseURL: https://eth.blockscout.com/api/v2
  tags:
  - Internal Transactions
  properties:
  - type: OpenAPI
    url: openapi/blockscout-internal-transactions-api-openapi.yml
- aid: blockscout:blockscout-main-page-api
  name: Blockscout Main Page API
  description: The Main Page API from Blockscout — 3 operation(s) for main page.
  humanURL: https://docs.blockscout.com/devs/apis/rest
  baseURL: https://eth.blockscout.com/api/v2
  tags:
  - Main Page
  properties:
  - type: OpenAPI
    url: openapi/blockscout-main-page-api-openapi.yml
- aid: blockscout:blockscout-proxy-api
  name: Blockscout Proxy API
  description: The Proxy API from Blockscout — 1 operation(s) for proxy.
  humanURL: https://docs.blockscout.com/devs/apis/rest
  baseURL: https://eth.blockscout.com/api/v2
  tags:
  - Proxy
  properties:
  - type: OpenAPI
    url: openapi/blockscout-proxy-api-openapi.yml
- aid: blockscout:blockscout-search-api
  name: Blockscout Search API
  description: The Search API from Blockscout — 2 operation(s) for search.
  humanURL: https://docs.blockscout.com/devs/apis/rest
  baseURL: https://eth.blockscout.com/api/v2
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/blockscout-search-api-openapi.yml
- aid: blockscout:blockscout-smart-contracts-api
  name: Blockscout Smart Contracts API
  description: The Smart Contracts API from Blockscout — 3 operation(s) for smart contracts.
  humanURL: https://docs.blockscout.com/devs/apis/rest
  baseURL: https://eth.blockscout.com/api/v2
  tags:
  - Smart Contracts
  properties:
  - type: OpenAPI
    url: openapi/blockscout-smart-contracts-api-openapi.yml
- aid: blockscout:blockscout-stats-api
  name: Blockscout Stats API
  description: The Stats API from Blockscout — 3 operation(s) for stats.
  humanURL: https://docs.blockscout.com/devs/apis/rest
  baseURL: https://eth.blockscout.com/api/v2
  tags:
  - Stats
  properties:
  - type: OpenAPI
    url: openapi/blockscout-stats-api-openapi.yml
- aid: blockscout:blockscout-token-transfers-api
  name: Blockscout Token Transfers API
  description: The Token Transfers API from Blockscout — 1 operation(s) for token transfers.
  humanURL: https://docs.blockscout.com/devs/apis/rest
  baseURL: https://eth.blockscout.com/api/v2
  tags:
  - Token Transfers
  properties:
  - type: OpenAPI
    url: openapi/blockscout-token-transfers-api-openapi.yml
- aid: blockscout:blockscout-tokens-api
  name: Blockscout Tokens API
  description: The Tokens API from Blockscout — 11 operation(s) for tokens.
  humanURL: https://docs.blockscout.com/devs/apis/rest
  baseURL: https://eth.blockscout.com/api/v2
  tags:
  - Tokens
  properties:
  - type: OpenAPI
    url: openapi/blockscout-tokens-api-openapi.yml
- aid: blockscout:blockscout-transactions-api
  name: Blockscout Transactions API
  description: The Transactions API from Blockscout — 8 operation(s) for transactions.
  humanURL: https://docs.blockscout.com/devs/apis/rest
  baseURL: https://eth.blockscout.com/api/v2
  tags:
  - Transaction
  tags_raw:
  - Transactions
  properties:
  - type: OpenAPI
    url: openapi/blockscout-transactions-api-openapi.yml
- aid: blockscout:blockscout-withdrawals-api
  name: Blockscout Withdrawals API
  description: The Withdrawals API from Blockscout — 1 operation(s) for withdrawals.
  humanURL: https://docs.blockscout.com/devs/apis/rest
  baseURL: https://eth.blockscout.com/api/v2
  tags:
  - Withdrawals
  properties:
  - type: OpenAPI
    url: openapi/blockscout-withdrawals-api-openapi.yml
common:
- type: Website
  url: https://www.blockscout.com/
- type: AgenticAccess
  url: agentic-access/blockscout-agentic-access.yml
- name: MCP Server
  url: https://mcp.blockscout.com/mcp
  type: MCPServer
- type: AgentSkill
  url: skills/_index.yml
- type: x402
  url: finops/blockscout-x402.yml
- type: DomainSecurity
  url: security/blockscout-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/blockscout
- type: Portal
  url: https://www.blockscout.com/
- type: Documentation
  url: https://docs.blockscout.com/
- type: DeveloperPortal
  url: https://dev.blockscout.com/
- type: GitHub
  url: https://github.com/blockscout
- type: Plans
  url: plans/blockscout-plans-pricing.yml
- type: RateLimits
  url: rate-limits/blockscout-rate-limits.yml
- type: FinOps
  url: finops/blockscout-finops.yml
- type: LlmsText
  url: https://dev.blockscout.com/llms.txt
- url: https://www.blog.blockscout.com/rss/
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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