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 contract indexed 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 15 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

34.6/100 thin ▬ flat Agent 23/100 agent aware Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

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 2026-11-13 · rubric v0.28.0

Composite quality — 34.6/100 · thin

Contract Quality 9.8 / 21

Developer Ergonomics 2.0 / 17

Access Clarity 8.3 / 17

Operational Transparency 1.8 / 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented) Ask about this →

6 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Developer Ergonomics scores 11.9 — up to +17.6 composite points Ask about this →
Contract Quality scores 45.9 — up to +13.5 composite points Ask about this →
Operational Transparency scores 16.7 — up to +10.8 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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 the provider profile at artifacts.apis.io/polygonscan/apis.yml: open an issue on github.com/api-evangelist/polygonscan to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

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 1

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

PolygonScan API API

OPEN COLLECTION

PolygonScan API pricing

Not yet checked against PolygonScan's own pricing page. Compiled by API Evangelist; confirm before you rely on a figure.

Plan	Price
Free	—
Lite	—
Standard	—
Advanced	—
Professional	—
Pro Plus	—
Dedicated / Custom	—

Plan details, limits and sources →

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

Terms of Service 1

What its API terms permit and prohibit, quoted from its own page.

PolygonScan

20 quoted statements, read from PolygonScan's own page on 2026-11-10.

TERMS

Privacy & Data 1

Its role, the data it processes, retention and transfers, quoted from its own privacy page.

PolygonScan

21 quoted statements, read from PolygonScan's own page on 2026-11-10.

PRIVACY

Eligibility 1

Who may sign up and where, quoted from its own terms.

PolygonScan

6 quoted statements, read from PolygonScan's own page on 2026-11-10.

ELIGIBILITY

AI Preferences 1

Its stance on AI training, inference and agents, quoted from its own pages.

PolygonScan

4 quoted statements, read from PolygonScan's own page on 2026-11-10.

AI PREFS

Data License 1

How its data and outputs may be reused, quoted from its own terms.

PolygonScan

3 quoted statements, read from PolygonScan's own page on 2026-11-10.

LICENSE

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. Counts are the severity each rule declares, not results of running them.

PolygonScan — jsonschema rules

6 rules · 4 warn-severity 2 info-severity

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

no policy recorded

SECURITY

Agentic Access (API Evangelist recommendations) 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 2

Reference material describing how the API behaves

Documentation

Documentation

AIPreferences

AIPreferences

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 3

Status, limits, changes, and where to get help

RateLimits

RateLimits

Status

Status

Contact

Contact

Commercial 6

Pricing, plans, and the legal terms of use

Plans

FinOps

Terms

Privacy

UsageTerms

DataLicense

Company 3

The organization behind the API

Website

Website

Blog

Blog

Twitter

Twitter

Other 2

Properties that don't map to a standard resource type

DataProcessing

DataProcessing

Eligibility

Eligibility

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
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-13'
  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: Plans
  url: plans/plans.yml
- type: RateLimits
  url: rate-limits/rate-limits.yml
- type: FinOps
  url: finops/finops.yml
- 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
- type: UsageTerms
  url: terms/polygonscan-terms-of-service.yml
- type: DataProcessing
  url: privacy/polygonscan-privacy-policy.yml
- type: Eligibility
  url: eligibility/polygonscan-eligibility.yml
- type: AIPreferences
  url: ai-preferences/polygonscan-ai-preferences.yml
- type: DataLicense
  url: data-license/polygonscan-data-license.yml
x-parent: etherscan
x-relationship: product

PolygonScan API — frequently asked questions

Does PolygonScan have an API?

Yes. APIs.io lists 1 API from PolygonScan, including PolygonScan PolygonScan API.

Is there an OpenAPI specification for the PolygonScan API?

Yes. APIs.io indexes 1 OpenAPI specification for PolygonScan, each linked for download from this page.

How do I authenticate with the PolygonScan API?

PolygonScan uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as PolygonScan Authentication.

How much does the PolygonScan API cost?

APIs.io lists 7 pricing plans for PolygonScan, with each plan's price, limits and inclusions under Pricing on this page.

Is the PolygonScan API ready for AI agents?

PolygonScan has a Kin Score of 34.6 out of 100 (thin) and an Agent Readiness score of 22.9 (agent-aware), scored by API Evangelist on 2026-11-13.

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