Polkadot

Polkadot is a multi-chain blockchain network that enables interoperability between specialized blockchains called parachains. Developer APIs are provided through Subscan (a multi-chain block explorer with a hosted HTTP API) and the Substrate API Sidecar (a REST interface for Polkadot SDK-based chains), enabling queries against extrinsics, events, accounts, blocks, staking data, and parachain state on Polkadot, Kusama, and related networks.

Polkadot publishes 57 APIs on the APIs.io network, including Account API, accounts API, ahm API, and 54 more. Tagged areas include Blockchain, Polkadot, Parachain, Substrate, and Crypto.

The Polkadot catalog on APIs.io includes 1 JSON-LD context.

Polkadot’s developer surface includes engineering blog, GitHub presence, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub

36.9/100 thin ▬ flat Agent 26/100 agent aware open core · GPL-3.0 Full breakdown ↓
scored 2026-09-14 · rubric v0.22.0

AccessFreemium

3 APIs

Blockchain Polkadot Parachain Substrate Crypto Web3

Kin Score

Kin Score How this is scored →
scored 2026-09-14 · rubric v0.22.0

Composite quality — 36.9/100 · thin

Contract Quality 10.0 / 20

Developer Ergonomics 2.3 / 16

Access Clarity 6.3 / 16

Operational Transparency 7.1 / 10

Contract Governance 0.0 / 10

Discoverability 5.5 / 8

Open Source Surface 2.5 / 10

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 26/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against 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 80 points between them, because the conditional facet above carries the other 20. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 80% 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/polkadot: 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 57

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

Polkadot Account API

The Account API from Polkadot — 12 operation(s) for account.

Polkadot accounts API

Account balance, staking, and proxy information

Polkadot ahm API

Asset Hub Migration information

Polkadot Assets API

The Assets API from Polkadot — 5 operation(s) for assets.

Polkadot Avail API

The Avail API from Polkadot — 5 operation(s) for avail.

Polkadot Bifrost API

The Bifrost API from Polkadot — 2 operation(s) for bifrost.

Polkadot Block API

The Block API from Polkadot — 3 operation(s) for block.

Polkadot blocks API

Block queries and extrinsic data

Polkadot capabilities API

API capabilities and chain pallets

Polkadot Collator API

The Collator API from Polkadot — 4 operation(s) for collator.

Polkadot Common API

The Common API from Polkadot — 1 operation(s) for common.

Polkadot Contracts API

The Contracts API from Polkadot — 9 operation(s) for contracts.

Polkadot coretime API

Coretime system information

Polkadot CrustStorage API

The CrustStorage API from Polkadot — 8 operation(s) for cruststorage.

Polkadot Currency API

The Currency API from Polkadot — 3 operation(s) for currency.

Polkadot Enjin API

The Enjin API from Polkadot — 7 operation(s) for enjin.

Polkadot Event API

The Event API from Polkadot — 3 operation(s) for event.

Polkadot EVM API

The EVM API from Polkadot — 22 operation(s) for evm.

Polkadot Extrinsic API

The Extrinsic API from Polkadot — 6 operation(s) for extrinsic.

Polkadot ForeignAssets API

The ForeignAssets API from Polkadot — 6 operation(s) for foreignassets.

Polkadot Governance API

The Governance API from Polkadot — 40 operation(s) for governance.

Polkadot health API

Health check

Polkadot Log API

The Log API from Polkadot — 2 operation(s) for log.

Polkadot Metadata API

The Metadata API from Polkadot — 1 operation(s) for metadata.

Polkadot Midnight API

The Midnight API from Polkadot — 11 operation(s) for midnight.

Polkadot Moonbeam API

The Moonbeam API from Polkadot — 1 operation(s) for moonbeam.

Polkadot MultiChain API

The MultiChain API from Polkadot — 5 operation(s) for multichain.

Polkadot Multisig API

The Multisig API from Polkadot — 3 operation(s) for multisig.

Polkadot NFTs API

The NFTs API from Polkadot — 7 operation(s) for nfts.

Polkadot node API

Connected node information

Polkadot NominationPools API

The NominationPools API from Polkadot — 6 operation(s) for nominationpools.

Polkadot pallets API

Runtime pallet metadata, storage, constants, events, errors

Polkadot Parachain API

The Parachain API from Polkadot — 7 operation(s) for parachain.

Polkadot paras API

Parachain inclusion data

Polkadot PRO API

Pro-only endpoints require a Subscan Pro plan.

Polkadot Proxy API

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

Polkadot rc accounts API

The rc accounts API from Polkadot — 5 operation(s) for rc accounts.

Polkadot rc API

Relay chain endpoints (available on parachains only)

Polkadot rc blocks API

The rc blocks API from Polkadot — 8 operation(s) for rc blocks.

Polkadot rc node API

The rc node API from Polkadot — 3 operation(s) for rc node.

Polkadot rc pallets API

The rc pallets API from Polkadot — 13 operation(s) for rc pallets.

Polkadot rc runtime API

The rc runtime API from Polkadot — 5 operation(s) for rc runtime.

Polkadot rc staking API

The rc staking API from Polkadot — 4 operation(s) for rc staking.

Polkadot rc transaction API

The rc transaction API from Polkadot — 5 operation(s) for rc transaction.

Polkadot runtime API

Runtime specification, metadata, and code

Polkadot Scheduler API

The Scheduler API from Polkadot — 3 operation(s) for scheduler.

Polkadot Search API

The Search API from Polkadot — 1 operation(s) for search.

Polkadot Staking API

The Staking API from Polkadot — 19 operation(s) for staking.

Polkadot Stat API

The Stat API from Polkadot — 4 operation(s) for stat.

Polkadot Sxt API

The Sxt API from Polkadot — 2 operation(s) for sxt.

Polkadot Tokens API

The Tokens API from Polkadot — 8 operation(s) for tokens.

Polkadot trace API

The trace API from Polkadot — 4 operation(s) for trace.

Polkadot transaction API

Transaction submission, fee estimation, and construction material

Polkadot Uniques API

The Uniques API from Polkadot — 8 operation(s) for uniques.

Polkadot version API

API version

Polkadot Vesting API

The Vesting API from Polkadot — 1 operation(s) for vesting.

Polkadot Xcm API

The Xcm API from Polkadot — 10 operation(s) for xcm.

Scroll for all 57

Open Collections 58

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

API Collection

OPEN COLLECTION

Polkadot REST Account API

OPEN COLLECTION

Polkadot REST Account accounts API

OPEN COLLECTION

Polkadot REST Account ahm API

OPEN COLLECTION

Polkadot REST Account Assets API

OPEN COLLECTION

Polkadot REST Account Avail API

OPEN COLLECTION

Polkadot REST Account Bifrost API

OPEN COLLECTION

Polkadot REST Account Block API

OPEN COLLECTION

Polkadot REST Account blocks API

OPEN COLLECTION

Polkadot REST Account capabilities API

OPEN COLLECTION

Polkadot REST Account Collator API

OPEN COLLECTION

Polkadot REST Account Common API

OPEN COLLECTION

Polkadot REST Account Contracts API

OPEN COLLECTION

Polkadot REST Account coretime API

OPEN COLLECTION

Polkadot REST Account CrustStorage API

OPEN COLLECTION

Polkadot REST Account Currency API

OPEN COLLECTION

Polkadot REST Account Enjin API

OPEN COLLECTION

Polkadot REST Account Event API

OPEN COLLECTION

Polkadot REST Account EVM API

OPEN COLLECTION

Polkadot REST Account Extrinsic API

OPEN COLLECTION

Polkadot REST Account ForeignAssets API

OPEN COLLECTION

Polkadot REST Account Governance API

OPEN COLLECTION

Polkadot REST Account health API

OPEN COLLECTION

Polkadot REST Account Log API

OPEN COLLECTION

Polkadot REST Account Metadata API

OPEN COLLECTION

Polkadot REST Account Midnight API

OPEN COLLECTION

Polkadot REST Account Moonbeam API

OPEN COLLECTION

Polkadot REST Account MultiChain API

OPEN COLLECTION

Polkadot REST Account Multisig API

OPEN COLLECTION

Polkadot REST Account NFTs API

OPEN COLLECTION

Polkadot REST Account node API

OPEN COLLECTION

Polkadot REST Account NominationPools API

OPEN COLLECTION

Polkadot REST Account pallets API

OPEN COLLECTION

Polkadot REST Account Parachain API

OPEN COLLECTION

Polkadot REST Account paras API

OPEN COLLECTION

Polkadot REST Account PRO API

OPEN COLLECTION

Polkadot REST Account Proxy API

OPEN COLLECTION

Polkadot REST Account rc accounts API

OPEN COLLECTION

Polkadot REST Account rc API

OPEN COLLECTION

Polkadot REST Account rc blocks API

OPEN COLLECTION

Polkadot REST Account rc node API

OPEN COLLECTION

Polkadot REST Account rc pallets API

OPEN COLLECTION

Polkadot REST Account rc runtime API

OPEN COLLECTION

Polkadot REST Account rc staking API

OPEN COLLECTION

Polkadot REST Account rc transaction API

OPEN COLLECTION

Polkadot REST Account runtime API

OPEN COLLECTION

Polkadot REST Account Scheduler API

OPEN COLLECTION

Polkadot REST Account Search API

OPEN COLLECTION

Polkadot REST Account Staking API

OPEN COLLECTION

Polkadot REST Account Stat API

OPEN COLLECTION

Polkadot REST Account Sxt API

OPEN COLLECTION

Polkadot REST Account Tokens API

OPEN COLLECTION

Polkadot REST Account trace API

OPEN COLLECTION

Polkadot REST Account transaction API

OPEN COLLECTION

Polkadot REST Account Uniques API

OPEN COLLECTION

Polkadot REST Account version API

OPEN COLLECTION

Polkadot REST Account Vesting API

OPEN COLLECTION

Polkadot REST Account Xcm API

OPEN COLLECTION

Scroll for all 58

Pricing Plans 1

Published pricing tiers and plan structures.

Subscan

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Subscan

3 limits

RATE LIMITS

FinOps 1

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

Subscan

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Apis Context

0 classes · 0 properties

JSON-LD

Security Posture 1

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

Polkadot Domain Security

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Polkadot Agentic Access

474 operations · 253 acting

AGENTIC

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHub

GitHub

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

IssueTracker

IssueTracker

Releases

Releases

StatusPage

StatusPage

Commercial 3

Pricing, plans, and the legal terms of use

License

License

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Developer

Developer

Source (apis.yml)

name: Polkadot
description: Polkadot is a multi-chain blockchain network that enables interoperability between specialized blockchains called
  parachains. Developer APIs are provided through Subscan (a multi-chain block explorer with a hosted HTTP API) and the Substrate
  API Sidecar (a REST interface for Polkadot SDK-based chains), enabling queries against extrinsics, events, accounts, blocks,
  staking data, and parachain state on Polkadot, Kusama, and related networks.
deliveryModel:
  model: open-core
  license: GPL-3.0
  open_source: true
  commercial: true
  callable_host: false
  label: Open core · an OSS project plus a commercial hosted product
  confidence: high
  source:
  - license
  - 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/polkadot.png
url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.23'
tags:
- Blockchain
- Polkadot
- Parachain
- Substrate
- Crypto
- Web3
apis:
- aid: polkadot:polkadot-account-api
  name: Polkadot Account API
  description: The Account API from Polkadot — 12 operation(s) for account.
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/polkadot-account-api-openapi.yml
  - type: Documentation
    url: https://support.subscan.io/
  - type: PostmanCollection
    url: https://documenter.getpostman.com/view/1618960/TVCe1oRU
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/plans/subscan.yml
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/rate-limits/subscan.yml
  - type: FinOps
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/finops/subscan.yml
  - type: Documentation
    url: https://docs.polkadot.com/chain-interactions/query-data/query-rest/
  - type: GitHubRepository
    url: https://github.com/paritytech/substrate-api-sidecar
  - type: Documentation
    url: https://github.com/paritytech/polkadot-rest-api
  - type: GitHubRepository
    url: https://github.com/paritytech/polkadot-rest-api
- aid: polkadot:polkadot-accounts-api
  name: Polkadot accounts API
  description: Account balance, staking, and proxy information
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
  - Account
  tags_raw:
  - accounts
  properties:
  - type: OpenAPI
    url: openapi/polkadot-accounts-api-openapi.yml
  - type: Documentation
    url: https://support.subscan.io/
  - type: PostmanCollection
    url: https://documenter.getpostman.com/view/1618960/TVCe1oRU
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/plans/subscan.yml
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/rate-limits/subscan.yml
  - type: FinOps
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/finops/subscan.yml
  - type: Documentation
    url: https://docs.polkadot.com/chain-interactions/query-data/query-rest/
  - type: GitHubRepository
    url: https://github.com/paritytech/substrate-api-sidecar
  - type: Documentation
    url: https://github.com/paritytech/polkadot-rest-api
  - type: GitHubRepository
    url: https://github.com/paritytech/polkadot-rest-api
- aid: polkadot:polkadot-ahm-api
  name: Polkadot ahm API
  description: Asset Hub Migration information
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
  - ahm
  properties:
  - type: OpenAPI
    url: openapi/polkadot-ahm-api-openapi.yml
  - type: Documentation
    url: https://support.subscan.io/
  - type: PostmanCollection
    url: https://documenter.getpostman.com/view/1618960/TVCe1oRU
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/plans/subscan.yml
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/rate-limits/subscan.yml
  - type: FinOps
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/finops/subscan.yml
  - type: Documentation
    url: https://docs.polkadot.com/chain-interactions/query-data/query-rest/
  - type: GitHubRepository
    url: https://github.com/paritytech/substrate-api-sidecar
  - type: Documentation
    url: https://github.com/paritytech/polkadot-rest-api
  - type: GitHubRepository
    url: https://github.com/paritytech/polkadot-rest-api
- aid: polkadot:polkadot-assets-api
  name: Polkadot Assets API
  description: The Assets API from Polkadot — 5 operation(s) for assets.
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
  - Assets
  properties:
  - type: OpenAPI
    url: openapi/polkadot-assets-api-openapi.yml
  - type: Documentation
    url: https://support.subscan.io/
  - type: PostmanCollection
    url: https://documenter.getpostman.com/view/1618960/TVCe1oRU
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/plans/subscan.yml
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/rate-limits/subscan.yml
  - type: FinOps
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/finops/subscan.yml
  - type: Documentation
    url: https://docs.polkadot.com/chain-interactions/query-data/query-rest/
  - type: GitHubRepository
    url: https://github.com/paritytech/substrate-api-sidecar
  - type: Documentation
    url: https://github.com/paritytech/polkadot-rest-api
  - type: GitHubRepository
    url: https://github.com/paritytech/polkadot-rest-api
- aid: polkadot:polkadot-avail-api
  name: Polkadot Avail API
  description: The Avail API from Polkadot — 5 operation(s) for avail.
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
  - Avail
  properties:
  - type: OpenAPI
    url: openapi/polkadot-avail-api-openapi.yml
  - type: Documentation
    url: https://support.subscan.io/
  - type: PostmanCollection
    url: https://documenter.getpostman.com/view/1618960/TVCe1oRU
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/plans/subscan.yml
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/rate-limits/subscan.yml
  - type: FinOps
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/finops/subscan.yml
  - type: Documentation
    url: https://docs.polkadot.com/chain-interactions/query-data/query-rest/
  - type: GitHubRepository
    url: https://github.com/paritytech/substrate-api-sidecar
  - type: Documentation
    url: https://github.com/paritytech/polkadot-rest-api
  - type: GitHubRepository
    url: https://github.com/paritytech/polkadot-rest-api
- aid: polkadot:polkadot-bifrost-api
  name: Polkadot Bifrost API
  description: The Bifrost API from Polkadot — 2 operation(s) for bifrost.
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
  - Bifrost
  properties:
  - type: OpenAPI
    url: openapi/polkadot-bifrost-api-openapi.yml
  - type: Documentation
    url: https://support.subscan.io/
  - type: PostmanCollection
    url: https://documenter.getpostman.com/view/1618960/TVCe1oRU
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/plans/subscan.yml
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/rate-limits/subscan.yml
  - type: FinOps
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/finops/subscan.yml
  - type: Documentation
    url: https://docs.polkadot.com/chain-interactions/query-data/query-rest/
  - type: GitHubRepository
    url: https://github.com/paritytech/substrate-api-sidecar
  - type: Documentation
    url: https://github.com/paritytech/polkadot-rest-api
  - type: GitHubRepository
    url: https://github.com/paritytech/polkadot-rest-api
- aid: polkadot:polkadot-block-api
  name: Polkadot Block API
  description: The Block API from Polkadot — 3 operation(s) for block.
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
  - Block
  properties:
  - type: OpenAPI
    url: openapi/polkadot-block-api-openapi.yml
  - type: Documentation
    url: https://support.subscan.io/
  - type: PostmanCollection
    url: https://documenter.getpostman.com/view/1618960/TVCe1oRU
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/plans/subscan.yml
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/rate-limits/subscan.yml
  - type: FinOps
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/finops/subscan.yml
  - type: Documentation
    url: https://docs.polkadot.com/chain-interactions/query-data/query-rest/
  - type: GitHubRepository
    url: https://github.com/paritytech/substrate-api-sidecar
  - type: Documentation
    url: https://github.com/paritytech/polkadot-rest-api
  - type: GitHubRepository
    url: https://github.com/paritytech/polkadot-rest-api
- aid: polkadot:polkadot-blocks-api
  name: Polkadot blocks API
  description: Block queries and extrinsic data
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
  - Blocks
  tags_raw:
  - blocks
  properties:
  - type: OpenAPI
    url: openapi/polkadot-blocks-api-openapi.yml
  - type: Documentation
    url: https://support.subscan.io/
  - type: PostmanCollection
    url: https://documenter.getpostman.com/view/1618960/TVCe1oRU
  - type: Plans
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/plans/subscan.yml
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/rate-limits/subscan.yml
  - type: FinOps
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/finops/subscan.yml
  - type: Documentation
    url: https://docs.polkadot.com/chain-interactions/query-data/query-rest/
  - type: GitHubRepository
    url: https://github.com/paritytech/substrate-api-sidecar
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    url: https://github.com/paritytech/polkadot-rest-api
- aid: polkadot:polkadot-capabilities-api
  name: Polkadot capabilities API
  description: API capabilities and chain pallets
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
  - Capabilities
  tags_raw:
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    url: https://github.com/paritytech/polkadot-rest-api
- aid: polkadot:polkadot-collator-api
  name: Polkadot Collator API
  description: The Collator API from Polkadot — 4 operation(s) for collator.
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
  - Collator
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    url: https://github.com/paritytech/polkadot-rest-api
- aid: polkadot:polkadot-common-api
  name: Polkadot Common API
  description: The Common API from Polkadot — 1 operation(s) for common.
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
  - Common
  properties:
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- aid: polkadot:polkadot-contracts-api
  name: Polkadot Contracts API
  description: The Contracts API from Polkadot — 9 operation(s) for contracts.
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
  - Contracts
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    url: https://github.com/paritytech/polkadot-rest-api
- aid: polkadot:polkadot-coretime-api
  name: Polkadot coretime API
  description: Coretime system information
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
  - coretime
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- aid: polkadot:polkadot-cruststorage-api
  name: Polkadot CrustStorage API
  description: The CrustStorage API from Polkadot — 8 operation(s) for cruststorage.
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
  - CrustStorage
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    url: https://docs.polkadot.com/chain-interactions/query-data/query-rest/
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    url: https://github.com/paritytech/substrate-api-sidecar
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    url: https://github.com/paritytech/polkadot-rest-api
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    url: https://github.com/paritytech/polkadot-rest-api
- aid: polkadot:polkadot-currency-api
  name: Polkadot Currency API
  description: The Currency API from Polkadot — 3 operation(s) for currency.
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
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    url: https://github.com/paritytech/polkadot-rest-api
- aid: polkadot:polkadot-enjin-api
  name: Polkadot Enjin API
  description: The Enjin API from Polkadot — 7 operation(s) for enjin.
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
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    url: https://github.com/paritytech/substrate-api-sidecar
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    url: https://github.com/paritytech/polkadot-rest-api
- aid: polkadot:polkadot-event-api
  name: Polkadot Event API
  description: The Event API from Polkadot — 3 operation(s) for event.
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
  - Event
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    url: https://github.com/paritytech/substrate-api-sidecar
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    url: https://github.com/paritytech/polkadot-rest-api
- aid: polkadot:polkadot-evm-api
  name: Polkadot EVM API
  description: The EVM API from Polkadot — 22 operation(s) for evm.
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
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    url: https://support.subscan.io/
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    url: https://github.com/paritytech/substrate-api-sidecar
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- aid: polkadot:polkadot-extrinsic-api
  name: Polkadot Extrinsic API
  description: The Extrinsic API from Polkadot — 6 operation(s) for extrinsic.
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
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- aid: polkadot:polkadot-foreignassets-api
  name: Polkadot ForeignAssets API
  description: The ForeignAssets API from Polkadot — 6 operation(s) for foreignassets.
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
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  name: Polkadot Governance API
  description: The Governance API from Polkadot — 40 operation(s) for governance.
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
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    url: https://github.com/paritytech/substrate-api-sidecar
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    url: https://github.com/paritytech/polkadot-rest-api
- aid: polkadot:polkadot-health-api
  name: Polkadot health API
  description: Health check
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
  - Health
  tags_raw:
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- aid: polkadot:polkadot-log-api
  name: Polkadot Log API
  description: The Log API from Polkadot — 2 operation(s) for log.
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
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- aid: polkadot:polkadot-metadata-api
  name: Polkadot Metadata API
  description: The Metadata API from Polkadot — 1 operation(s) for metadata.
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
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  name: Polkadot Midnight API
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  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
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  name: Polkadot Moonbeam API
  description: The Moonbeam API from Polkadot — 1 operation(s) for moonbeam.
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
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    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/plans/subscan.yml
  - type: RateLimits
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/rate-limits/subscan.yml
  - type: FinOps
    url: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/finops/subscan.yml
  - type: Documentation
    url: https://docs.polkadot.com/chain-interactions/query-data/query-rest/
  - type: GitHubRepository
    url: https://github.com/paritytech/substrate-api-sidecar
  - type: Documentation
    url: https://github.com/paritytech/polkadot-rest-api
  - type: GitHubRepository
    url: https://github.com/paritytech/polkadot-rest-api
- aid: polkadot:polkadot-multichain-api
  name: Polkadot MultiChain API
  description: The MultiChain API from Polkadot — 5 operation(s) for multichain.
  humanURL: https://support.subscan.io/
  baseURL: https://polkadot.api.subscan.io
  tags:
  - Multi-Chain
  tags_raw:
  - MultiChain
  properties:
  - type: Op

# --- truncated at 32 KB (68 KB total) ---
# Full source: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/apis.yml

Work with this as data

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Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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This provider

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All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/polkadot/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/polkadot/evidence"

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