PolygonScan

PolygonScan is the leading blockchain explorer, search, API, and analytics platform for the Polygon PoS network. It provides a REST API for querying transactions, token transfers, smart contract source code, ERC-20/ERC-721/ERC-1155 balances, gas prices, and network statistics on the Polygon blockchain (Chain ID 137). API access is unified under Etherscan API V2, enabling access with a single API key across 60+ EVM-compatible chains.

PolygonScan publishes 1 API on the APIs.io network: PolygonScan API. Tagged areas include Blockchain, Polygon, Explorer, Web3, and EVM.

The PolygonScan catalog on APIs.io includes 1 Spectral governance ruleset.

PolygonScan’s developer surface includes authentication, documentation, signup flow, engineering blog, status page, terms of service, privacy policy, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub

39.1/100 thin ▬ flat Agent 23/100 agent aware Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-10-04 · rubric v0.23.0

AccessFreemiumSelf serve⚡ Free to try

1 published contract

Blockchain Polygon Explorer Web3 EVM Smart Contracts DeFi Cryptocurrency

Kin Score

Kin Score How this is scored →
scored 2026-10-04 · rubric v0.23.0

Composite quality — 39.1/100 · thin

Contract Quality 9.8 / 21

Developer Ergonomics 2.0 / 17

Access Clarity 10.9 / 17

Operational Transparency 3.1 / 11

Contract Governance 1.0 / 10

Discoverability 5.2 / 9

Regulatory Posture 3.8 / 15

Agent readiness — 23/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 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 4 / 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 does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% 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/polygonscan: 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 1

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

PolygonScan PolygonScan API

The PolygonScan API API from PolygonScan — 1 operation(s) for polygonscan api.

Open Collections 2

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

API Collection

OPEN COLLECTION

PolygonScan API API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Plans

7 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Rate Limits

7 limits

RATE LIMITS

FinOps 1

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

Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

PolygonScan API Rules

6 rules · 4 warnings 2 info

SPECTRAL

JSON Schema 1

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

PolygonScan API Response

3 properties

JSON SCHEMA

Examples 4

Example request and response payloads for these APIs.

Get Balance

5 fields

EXAMPLE

Get Contract Abi

5 fields

EXAMPLE

Get Gas Oracle

5 fields

EXAMPLE

Get Transactions

5 fields

EXAMPLE

Security Posture 3

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

Polygonscan Authentication

apiKey · 1 scheme

SECURITY

Polygonscan Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Polygonscan Vulnerability Disclosure

disclosure policy published

SECURITY

Agentic Access 1

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

Polygonscan Agentic Access

1 operation

1 operations · 0 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Signup

Signup

Login

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Access & Security 3

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

Status

Status

Contact

Contact

Commercial 2

Pricing, plans, and the legal terms of use

Terms

Terms

Privacy

Privacy

Company 3

The organization behind the API

Website

Website

Blog

Blog

Twitter

Twitter

Source (apis.yml)

name: PolygonScan
description: PolygonScan is the leading blockchain explorer, search, API, and analytics platform for the Polygon PoS network.
  It provides a REST API for querying transactions, token transfers, smart contract source code, ERC-20/ERC-721/ERC-1155 balances,
  gas prices, and network statistics on the Polygon blockchain (Chain ID 137). API access is unified under Etherscan API V2,
  enabling access with a single API key across 60+ EVM-compatible chains.
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: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://polygonscan.com/images/svg/brands/main.svg?v=24.1.2.0
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-04
x-docs-hosting: vercel
tags:
- Blockchain
- Polygon
- Explorer
- Web3
- EVM
- Smart Contracts
- DeFi
- Cryptocurrency
created: '2026-06-13'
modified: '2026-09-16'
specificationVersion: '0.23'
apis:
- aid: polygonscan:polygonscan-polygonscan-api-api
  name: PolygonScan PolygonScan API
  description: The PolygonScan API API from PolygonScan — 1 operation(s) for polygonscan api.
  humanURL: https://polygonscan.com/apis
  baseURL: https://api.etherscan.io/v2/api
  tags:
  - PolygonScan API
  properties:
  - type: OpenAPI
    url: openapi/polygonscan-polygonscan-api-api-openapi.yml
  - type: Documentation
    url: https://docs.etherscan.io/etherscan-v2
  - type: Authentication
    url: https://polygonscan.com/myapikey
  - type: RateLimits
    url: https://info.polygonscan.com/api-return-errors/
  - type: Plans
    url: https://polygonscan.com/apis
  - type: TermsOfService
    url: https://polygonscan.com/apiterms
  - type: x-plans
    url: plans/plans.yml
  - type: x-rate-limits
    url: rate-limits/rate-limits.yml
  - type: x-finops
    url: finops/finops.yml
  - type: x-json-schema
    url: json-schema/api-response.json
  - type: x-json-ld
    url: json-ld/jsonld.json
common:
- type: AgenticAccess
  url: agentic-access/polygonscan-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/polygonscan-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/polygonscan-domain-security.yml
- type: Authentication
  url: authentication/polygonscan-authentication.yml
- type: Website
  url: https://polygonscan.com/
- type: Documentation
  url: https://docs.etherscan.io/etherscan-v2
- type: Signup
  url: https://polygonscan.com/register
- type: Login
  url: https://polygonscan.com/login
- type: Blog
  url: https://polygonscan.com/blogs
- type: Status
  url: https://etherscan.freshstatus.io/
- type: Terms
  url: https://polygonscan.com/terms
- type: Privacy
  url: https://polygonscan.com/privacypolicy
- type: Contact
  url: https://polygonscan.com/contactus
- type: Twitter
  url: https://twitter.com/polygonscan
x-parent: etherscan
x-relationship: product

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