Etherscan

Etherscan is the leading blockchain explorer, search, API, and analytics platform for Ethereum and other EVM-compatible chains. It allows users to easily access and explore blockchain data, including transaction histories, smart contracts, token balances, and network activity. Etherscan's unified V2 API covers 60+ chains under a single account and API key, with a free tier offering 100,000 daily calls and paid tiers up to enterprise.

Etherscan publishes 7 APIs on the APIs.io network, including Accounts API, Blocks API, Contracts API, and 4 more. Tagged areas include Blockchain, Cryptocurrency, Ethereum, EVM, and Web3.

Etherscan’s developer surface includes authentication, developer portal, documentation, pricing, signup flow, engineering blog, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub

45.4/100 developing ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFreemiumSelf serve⚡ Free to try

7 APIs

BlockchainCryptocurrencyEthereumEVMWeb3

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 45.4/100 · developing

Contract Quality 15.1 / 25

Developer Ergonomics 6.1 / 20

Commercial Clarity 12.1 / 20

Operational Transparency 4.8 / 13

Governance 0.0 / 12

Discoverability 7.4 / 10

Agent readiness — 31/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/etherscan: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 7

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

Rate Limits 1

Documented rate limits and quota policies.

Etherscan Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Portal

Portal

Signup

Signup

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Commercial 2

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

Company 2

The organization behind the API

LinkedIn

Blog

Blog

Source (apis.yml)

aid: etherscan
name: Etherscan
description: Etherscan is the leading blockchain explorer, search, API, and analytics platform for Ethereum and other EVM-compatible
  chains. It allows users to easily access and explore blockchain data, including transaction histories, smart contracts,
  token balances, and network activity. Etherscan's unified V2 API covers 60+ chains under a single account and API key, with
  a free tier offering 100,000 daily calls and paid tiers up to enterprise.
url: https://raw.githubusercontent.com/api-evangelist/etherscan/refs/heads/main/apis.yml
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/etherscan.png
type: Index
position: Consumer
access: 3rd-Party
created: '2025-02-17'
modified: '2026-05-19'
specificationVersion: '0.19'
tags:
- Blockchain
- Cryptocurrency
- Ethereum
- EVM
- Web3
apis:
- aid: etherscan:etherscan-accounts-api
  name: Etherscan Accounts API
  description: Address balances, transactions, and token holdings
  humanURL: https://docs.etherscan.io/
  baseURL: https://api.etherscan.io/v2/api
  tags:
  - Accounts
  properties:
  - type: OpenAPI
    url: openapi/etherscan-accounts-api-openapi.yml
  - type: Documentation
    url: https://docs.etherscan.io/
  - type: Pricing
    url: https://etherscan.io/apis
  - type: Signup
    url: https://etherscan.io/myapikey
  - type: TermsOfService
    url: https://etherscan.io/apiterms
- aid: etherscan:etherscan-blocks-api
  name: Etherscan Blocks API
  description: Block details, rewards, and uncles
  humanURL: https://docs.etherscan.io/
  baseURL: https://api.etherscan.io/v2/api
  tags:
  - Blocks
  properties:
  - type: OpenAPI
    url: openapi/etherscan-blocks-api-openapi.yml
  - type: Documentation
    url: https://docs.etherscan.io/
  - type: Pricing
    url: https://etherscan.io/apis
  - type: Signup
    url: https://etherscan.io/myapikey
  - type: TermsOfService
    url: https://etherscan.io/apiterms
- aid: etherscan:etherscan-contracts-api
  name: Etherscan Contracts API
  description: Smart contract source, ABI, and verification
  humanURL: https://docs.etherscan.io/
  baseURL: https://api.etherscan.io/v2/api
  tags:
  - Contracts
  properties:
  - type: OpenAPI
    url: openapi/etherscan-contracts-api-openapi.yml
  - type: Documentation
    url: https://docs.etherscan.io/
  - type: Pricing
    url: https://etherscan.io/apis
  - type: Signup
    url: https://etherscan.io/myapikey
  - type: TermsOfService
    url: https://etherscan.io/apiterms
- aid: etherscan:etherscan-gas-tracker-api
  name: Etherscan Gas Tracker API
  description: Network gas oracle and gas price estimates
  humanURL: https://docs.etherscan.io/
  baseURL: https://api.etherscan.io/v2/api
  tags:
  - Gas Tracker
  properties:
  - type: OpenAPI
    url: openapi/etherscan-gas-tracker-api-openapi.yml
  - type: Documentation
    url: https://docs.etherscan.io/
  - type: Pricing
    url: https://etherscan.io/apis
  - type: Signup
    url: https://etherscan.io/myapikey
  - type: TermsOfService
    url: https://etherscan.io/apiterms
- aid: etherscan:etherscan-stats-api
  name: Etherscan Stats API
  description: Network and supply statistics
  humanURL: https://docs.etherscan.io/
  baseURL: https://api.etherscan.io/v2/api
  tags:
  - Stats
  properties:
  - type: OpenAPI
    url: openapi/etherscan-stats-api-openapi.yml
  - type: Documentation
    url: https://docs.etherscan.io/
  - type: Pricing
    url: https://etherscan.io/apis
  - type: Signup
    url: https://etherscan.io/myapikey
  - type: TermsOfService
    url: https://etherscan.io/apiterms
- aid: etherscan:etherscan-tokens-api
  name: Etherscan Tokens API
  description: ERC-20, ERC-721, and ERC-1155 token data
  humanURL: https://docs.etherscan.io/
  baseURL: https://api.etherscan.io/v2/api
  tags:
  - Tokens
  properties:
  - type: OpenAPI
    url: openapi/etherscan-tokens-api-openapi.yml
  - type: Documentation
    url: https://docs.etherscan.io/
  - type: Pricing
    url: https://etherscan.io/apis
  - type: Signup
    url: https://etherscan.io/myapikey
  - type: TermsOfService
    url: https://etherscan.io/apiterms
- aid: etherscan:etherscan-transactions-api
  name: Etherscan Transactions API
  description: Transaction status and receipts
  humanURL: https://docs.etherscan.io/
  baseURL: https://api.etherscan.io/v2/api
  tags:
  - Transactions
  properties:
  - type: OpenAPI
    url: openapi/etherscan-transactions-api-openapi.yml
  - type: Documentation
    url: https://docs.etherscan.io/
  - type: Pricing
    url: https://etherscan.io/apis
  - type: Signup
    url: https://etherscan.io/myapikey
  - type: TermsOfService
    url: https://etherscan.io/apiterms
common:
- type: AgenticAccess
  url: agentic-access/etherscan-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/etherscan-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/etherscan-domain-security.yml
- type: Authentication
  url: authentication/etherscan-authentication.yml
- type: GitHubOrganization
  url: https://github.com/etherscan
- type: LinkedIn
  url: https://www.linkedin.com/company/etherscan
- url: https://etherscan.io/
  type: Portal
- url: https://docs.etherscan.io/
  type: Documentation
- url: https://etherscan.io/apis
  type: Pricing
- url: https://etherscan.io/apiterms
  type: TermsOfService
- url: https://etherscan.io/myapikey
  type: Signup
- type: LlmsText
  url: https://docs.etherscan.io/llms.txt
- type: Blog
  url: https://medium.com/feed/etherscan-blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Etherscan

Kin Score

APIs 7

Etherscan Accounts API

Etherscan Blocks API

Etherscan Contracts API

Etherscan Gas Tracker API

Etherscan Stats API

Etherscan Tokens API

Etherscan Transactions API

Open Collections 1

Etherscan API

Pricing Plans 1

Etherscan Plans Pricing

Rate Limits 1

Etherscan Rate Limits

FinOps 1

Etherscan Finops

Security Posture 3

Etherscan Authentication

Etherscan Domain Security

Etherscan Vulnerability Disclosure

Agentic Access 1

Etherscan Agentic Access