Polkadot

Polkadot Block API

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

GitHub OpenAPI

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-block-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

OpenAPI Specification

polkadot-block-api-openapi.yml Raw ↑ 
openapi: 3.1.0
info:
  title: Polkadot REST Account Block API
  description: High-performance Rust REST API for Substrate/Polkadot blockchain data. Drop-in replacement for substrate-api-sidecar.
  contact:
    url: https://github.com/paritytech/polkadot-rest-api
  license:
    name: GPL-3.0-or-later
  version: 0.1.3
servers:
- url: http://localhost:8080/v1
  description: Localhost
tags:
- name: Block
paths:
  /api/scan/block:
    post:
      consumes:
      - application/json
      description: Returns block details by block number, block hash, or the nearest block to a supplied block timestamp.
      parameters:
      - description: params
        in: body
        name: params
        required: true
        schema:
          $ref: '#/definitions/internal_server_http.blockParams'
      produces:
      - application/json
      responses:
        '200':
          description: OK
          schema:
            allOf:
            - $ref: '#/definitions/internal_server_http.J'
            - properties:
                data:
                  $ref: '#/definitions/subscan_internal_model.ChainBlockJson'
              type: object
      summary: Get block details
      tags:
      - Block
      x-synonyms:
      - block
      - scan
      - block height
      - block number
  /api/scan/header:
    post:
      consumes:
      - application/json
      description: Returns the block header for the requested block number.
      parameters:
      - description: params
        in: body
        name: params
        required: true
        schema:
          $ref: '#/definitions/internal_server_http.blockHeaderParams'
      produces:
      - application/json
      responses:
        '200':
          description: OK
          schema:
            allOf:
            - $ref: '#/definitions/internal_server_http.J'
            - properties:
                data:
                  $ref: '#/definitions/subscan_internal_model.BlockHeader'
              type: object
      summary: Get a block header
      tags:
      - Block
      x-synonyms:
      - block
      - header
      - scan
      - block height
      - block number
  /api/v2/scan/blocks:
    post:
      consumes:
      - application/json
      description: Returns a paginated block list with optional author and block-range filters.
      parameters:
      - description: params
        in: body
        name: params
        required: true
        schema:
          $ref: '#/definitions/internal_server_http.blocksParams'
      produces:
      - application/json
      responses:
        '200':
          description: OK
          schema:
            allOf:
            - $ref: '#/definitions/internal_server_http.J'
            - properties:
                data:
                  properties:
                    blocks:
                      items:
                        $ref: '#/definitions/subscan_internal_model.SampleBlockV2Json'
                      type: array
                    count:
                      type: integer
                  type: object
              type: object
      summary: List blocks
      tags:
      - Block
      x-synonyms:
      - blocks
      - block
      - scan
      - block list
      - block heights
      - block height
      - block number
definitions:
  internal_server_http.blockHeaderParams:
    properties:
      block_num:
        example: 10000
        minimum: 0
        type: integer
    type: object
  subscan_internal_model.AccountParentJson:
    properties:
      address:
        type: string
      display:
        type: string
      identity:
        type: boolean
      sub_symbol:
        type: string
    type: object
  subscan_internal_model.MerkleTag:
    properties:
      address_type:
        type: string
      tag_name:
        type: string
      tag_subtype:
        type: string
      tag_type:
        type: string
    type: object
  subscan_internal_model.ChainExtrinsicJson:
    properties:
      account_display:
        $ref: '#/definitions/subscan_internal_model.AccountDisplay'
      account_id:
        type: string
      account_index:
        type: string
      block_num:
        type: integer
      block_timestamp:
        type: integer
      call_module:
        type: string
      call_module_function:
        type: string
      extrinsic_hash:
        type: string
      extrinsic_index:
        type: string
      fee:
        type: string
      fee_used:
        type: string
      finalized:
        type: boolean
      from_hex:
        type: string
      nonce:
        type: integer
      params:
        type: string
      signature:
        type: string
      success:
        type: boolean
    type: object
  subscan_internal_model.SampleIdentity:
    properties:
      display:
        type: string
      identity:
        type: boolean
      judgements:
        items:
          $ref: '#/definitions/subscan_internal_model.RegistrationJudgementJson'
        type: array
      parent:
        $ref: '#/definitions/subscan_internal_model.AccountParentJson'
    type: object
  subscan_internal_model.ChainBlockJson:
    properties:
      account_display:
        $ref: '#/definitions/subscan_internal_model.AccountDisplay'
      additional_meta:
        additionalProperties: true
        type: object
      block_num:
        type: integer
      block_timestamp:
        type: integer
      event_count:
        type: integer
      events:
        items:
          $ref: '#/definitions/subscan_internal_model.ChainEventJson'
        type: array
      extrinsics:
        items:
          $ref: '#/definitions/subscan_internal_model.ChainExtrinsicJson'
        type: array
      extrinsics_count:
        type: integer
      extrinsics_root:
        type: string
      finalized:
        type: boolean
      hash:
        type: string
      logs:
        items:
          $ref: '#/definitions/subscan_internal_model.ChainLogJson'
        type: array
      max_proof_size:
        type: integer
      max_ref_time:
        type: integer
      parent_hash:
        type: string
      proof_size:
        type: integer
      ref_time:
        type: integer
      spec_version:
        type: integer
      state_root:
        type: string
      validator:
        type: string
    type: object
  internal_server_http.J:
    properties:
      code:
        example: 0
        type: integer
      data: {}
      generated_at:
        example: 1699600641
        type: integer
      message:
        example: Success
        type: string
    type: object
  subscan_internal_model.ChainLogJson:
    properties:
      block_num:
        type: integer
      data:
        type: string
      engine:
        type: string
      id:
        type: integer
      log_index:
        type: string
      log_type:
        type: string
    type: object
  subscan_internal_model.SampleBlockV2Json:
    properties:
      account_display:
        $ref: '#/definitions/subscan_internal_model.AccountDisplay'
      additional_meta:
        additionalProperties: true
        type: object
      block_num:
        type: integer
      block_timestamp:
        type: integer
      event_count:
        type: integer
      extrinsics_count:
        type: integer
      finalized:
        type: boolean
      hash:
        type: string
      max_proof_size:
        type: integer
      max_ref_time:
        type: integer
      proof_size:
        type: integer
      ref_time:
        type: integer
    type: object
  subscan_internal_model.BlockHeader:
    properties:
      block_number:
        type: integer
      digest:
        items:
          type: string
        type: array
      extrinsics_root:
        type: string
      parent_hash:
        type: string
      state_root:
        type: string
    type: object
  internal_server_http.blocksParams:
    properties:
      after_id:
        type: integer
      author:
        type: string
      block_range:
        type: string
      page:
        description: Page number, starting from 0
        example: 0
        minimum: 0
        type: integer
      row:
        description: Data size per page
        example: 10
        maximum: 100
        minimum: 1
        type: integer
    type: object
  internal_server_http.blockParams:
    properties:
      block_hash:
        example: 76348355870982371260092528173678713874679923045094083042913560678924874744331
        type: string
      block_num:
        example: 10000
        minimum: 0
        type: integer
      block_timestamp:
        type: integer
      only_head:
        type: boolean
    type: object
  subscan_internal_model.EvmAccountDisplay:
    properties:
      contract_name:
        type: string
      verify_source:
        type: string
    type: object
  subscan_internal_model.ChainEventJson:
    properties:
      block_num:
        type: integer
      block_timestamp:
        type: integer
      event_id:
        type: string
      event_idx:
        type: integer
      event_index:
        type: string
      extrinsic_hash:
        type: string
      extrinsic_idx:
        type: integer
      finalized:
        type: boolean
      module_id:
        type: string
      params:
        type: string
      phase:
        type: integer
    type: object
  subscan_internal_model.RegistrationJudgementJson:
    properties:
      index:
        type: integer
      judgement:
        type: string
    type: object
  subscan_internal_model.AccountDisplay:
    properties:
      account_index:
        type: string
      address:
        description: Current network account
        type: string
      display:
        type: string
      evm_address:
        type: string
      evm_contract:
        $ref: '#/definitions/subscan_internal_model.EvmAccountDisplay'
      identity:
        type: boolean
      judgements:
        items:
          $ref: '#/definitions/subscan_internal_model.RegistrationJudgementJson'
        type: array
      merkle:
        $ref: '#/definitions/subscan_internal_model.MerkleTag'
      parent:
        allOf:
        - $ref: '#/definitions/subscan_internal_model.AccountParentJson'
        description: Parent account
      people:
        $ref: '#/definitions/subscan_internal_model.SampleIdentity'
    type: object