Polkadot

Polkadot Rc API

Relay chain endpoints (available on parachains only)

GitHub OpenAPI

Operations 45

GET /v1/rc/accounts/{accountId}/balance-info RC get balance info #
GET /v1/rc/accounts/{accountId}/proxy-info RC get proxy info #
GET /v1/rc/accounts/{accountId}/staking-info RC get staking info #
GET /v1/rc/accounts/{accountId}/staking-payouts RC get staking payouts #
GET /v1/rc/accounts/{accountId}/vesting-info RC get vesting info #
GET /v1/rc/blocks RC get blocks by range #
GET /v1/rc/blocks/head RC get head block #
GET /v1/rc/blocks/head/header RC get head block header #
GET /v1/rc/blocks/{blockId} RC get block by ID #
GET /v1/rc/blocks/{blockId}/extrinsics-raw RC get raw extrinsics #
GET /v1/rc/blocks/{blockId}/extrinsics/{extrinsicIndex} RC get extrinsic by index #
GET /v1/rc/blocks/{blockId}/header RC get block header #
GET /v1/rc/blocks/{blockId}/para-inclusions RC get parachain inclusions #
GET /v1/rc/node/network RC get node network #
GET /v1/rc/node/transaction-pool RC get transaction pool #
GET /v1/rc/node/version RC get node version #
GET /v1/rc/pallets/on-going-referenda RC on-going referenda #
GET /v1/rc/pallets/staking/progress RC staking progress #
GET /v1/rc/pallets/staking/validators RC staking validators #
GET /v1/rc/pallets/{palletId}/consts RC pallet constants #
GET /v1/rc/pallets/{palletId}/consts/{constantItemId} RC pallet constant value #
GET /v1/rc/pallets/{palletId}/dispatchables RC pallet dispatchables #
GET /v1/rc/pallets/{palletId}/dispatchables/{dispatchableId} RC pallet dispatchable details #
GET /v1/rc/pallets/{palletId}/errors RC pallet errors #
GET /v1/rc/pallets/{palletId}/errors/{errorItemId} RC pallet error details #
GET /v1/rc/pallets/{palletId}/events RC pallet events #
GET /v1/rc/pallets/{palletId}/events/{eventItemId} RC pallet event details #
GET /v1/rc/pallets/{palletId}/storage RC pallet storage items #
GET /v1/rc/pallets/{palletId}/storage/{storageItemId} RC pallet storage item value #
GET /v1/rc/runtime/code RC get runtime code #
GET /v1/rc/runtime/metadata RC get runtime metadata #
GET /v1/rc/runtime/metadata/versions RC get metadata versions #
GET /v1/rc/runtime/metadata/{version} RC get metadata by version #
GET /v1/rc/runtime/spec RC get runtime spec #
POST /v1/rc/transaction Submit transaction (relay chain) #
POST /v1/rc/transaction/dry-run RC dry run transaction #
POST /v1/rc/transaction/fee-estimate RC fee estimate #
GET /v1/rc/transaction/material RC transaction material #
GET /v1/rc/transaction/material/{metadataVersion} RC transaction material versioned #
POST /v1/rc/transaction/metadata-blob RC metadata blob #
POST /v1/rc/transaction/parse Parse transaction (relay chain) #
GET /experimental/rc/blocks/head/traces Get the latest relay chain block's traces #
GET /experimental/rc/blocks/{blockId}/traces Get a relay chain block's traces by its height or hash #
GET /experimental/rc/blocks/head/traces/operations Get the latest relay chain block's trace operations #
GET /experimental/rc/blocks/{blockId}/traces/operations Get a relay chain block's trace operations by its height or hash #

Documentation

📖
Documentation
https://support.subscan.io/
📖
RateLimits
https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/rate-limits/subscan.yml
📖
Documentation
https://docs.polkadot.com/chain-interactions/query-data/query-rest/
📖
Documentation
https://github.com/paritytech/polkadot-rest-api

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/openapi/polkadot-rc-api-openapi.yml

SDKs

📦
GitHubRepository
https://github.com/paritytech/substrate-api-sidecar
📦
GitHubRepository
https://github.com/paritytech/polkadot-rest-api

Other Resources

🔗
PostmanCollection
https://documenter.getpostman.com/view/1618960/TVCe1oRU
🔗
Plans
https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/plans/subscan.yml
🔗
FinOps
https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/finops/subscan.yml

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • 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.
All 92 tools →

Call it yourself

curl for this page
This API 
curl "https://apis.io/api/v1/apis/polkadot-rc-api"
All apis 
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

polkadot-rc-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: Polkadot Rc API
  version: '1.0'
  description: 'Operations tagged rc across 2 of this provider''s published API definitions: polkadot-rest-api-openapi.json, substrate-api-sidecar-openapi.yaml. Each path carries the servers of the definition it was published in.'
servers:
- url: http://localhost:8080/v1
  description: Localhost
- url: https://polkadot-public-sidecar.parity-chains.parity.io/
  description: Polkadot Parity public sidecar
- url: https://kusama-public-sidecar.parity-chains.parity.io/
  description: Kusama Parity public sidecar
- url: https://polkadot-asset-hub-public-sidecar.parity-chains.parity.io/
  description: Polkadot Asset Hub Parity public sidecar
- url: https://kusama-asset-hub-public-sidecar.parity-chains.parity.io/
  description: Kusama Asset Hub Parity public sidecar
- url: http://localhost:8080
  description: Localhost
tags:


# --- truncated at 32 KB (69 KB total) ---
# Full source: https://raw.githubusercontent.com/api-evangelist/polkadot/refs/heads/main/openapi/polkadot-rc-api-openapi.yml