openapi: 3.0.3
info:
  title: Chainstack Arbitrum Node Account Info Blocks Info API
  version: 1.0.0
  description: Chainstack-managed RPC node API for the Arbitrum blockchain. Endpoints follow the canonical JSON-RPC over HTTPS interface for the network. Authenticate against your Chainstack node's per-node URL (e.g. https://nd-XXX-XXX-XXX.p2pify.com/<key>). Merged from the Chainstack Developer Portal per-method fragments at https://github.com/chainstack/dev-portal/tree/main/openapi/arbitrum_node_api.
  contact:
    name: Chainstack API Support
    email: support@chainstack.com
  license:
    name: Chainstack Terms
    url: https://chainstack.com/terms-of-service/
servers:
- url: https://{node_id}.p2pify.com/{api_key}
  description: Chainstack-managed node endpoint
  variables:
    node_id:
      default: nd-000-000-000
      description: Your Chainstack node identifier
    api_key:
      default: <api-key>
      description: Per-node access key
tags:
- name: Blocks Info
paths:
  /eth_blockNumber:
    post:
      tags:
      - Blocks Info
      summary: eth_blockNumber
      operationId: eth_blockNumber
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                id:
                  type: integer
                  default: 1
                jsonrpc:
                  type: string
                  default: '2.0'
                method:
                  type: string
                  default: eth_blockNumber
                params:
                  type: array
                  default: []
      responses:
        '200':
          description: The latest block number.
          content:
            application/json:
              schema:
                type: object
                properties:
                  jsonrpc:
                    type: string
                  id:
                    type: integer
                  result:
                    type: object
  /eth_getBlockByHash:
    post:
      tags:
      - Blocks Info
      summary: eth_getBlockByHash
      operationId: getBlockByHash
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                id:
                  type: integer
                  default: 1
                jsonrpc:
                  type: string
                  default: '2.0'
                method:
                  type: string
                  default: eth_getBlockByHash
                params:
                  type: array
                  items:
                    anyOf:
                    - type: string
                      title: Block Hash
                      description: The hash identifying the block.
                    - type: boolean
                      title: Transaction selector
                      description: True for the full transactions, false for only the transaction hashes.
                  default:
                  - '0x7ccd0791880035667dfee8244ab96d9c091668859e9e72ded4890e6efde68b25'
                  - false
      responses:
        '200':
          description: The block information
          content:
            application/json:
              schema:
                type: object
                properties:
                  jsonrpc:
                    type: string
                  id:
                    type: integer
                  result:
                    type: object
  /eth_getBlockByNumber:
    post:
      tags:
      - Blocks Info
      summary: eth_getBlockByNumber
      operationId: getBlockByNumber
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                id:
                  type: integer
                  default: 1
                jsonrpc:
                  type: string
                  default: '2.0'
                method:
                  type: string
                  default: eth_getBlockByNumber
                params:
                  type: array
                  items:
                    anyOf:
                    - type: string
                      title: Block identifier
                      description: The block number or tag.
                    - type: boolean
                      title: Transaction selector
                      description: True for the full transactions, false for only the transaction hashes.
                  default:
                  - latest
                  - false
      responses:
        '200':
          description: The block information
          content:
            application/json:
              schema:
                type: object
                properties:
                  jsonrpc:
                    type: string
                  id:
                    type: integer
                  result:
                    type: object
  /eth_getBlockTransactionCountByHash:
    post:
      tags:
      - Blocks Info
      summary: eth_getBlockTransactionCountByHash
      operationId: getBlockTransactionCountByHash
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                id:
                  type: integer
                  default: 1
                jsonrpc:
                  type: string
                  default: '2.0'
                method:
                  type: string
                  default: eth_getBlockTransactionCountByHash
                params:
                  type: array
                  items:
                    type: string
                    title: Block hash
                    description: The block hash identifier.
                  default:
                  - '0x7ccd0791880035667dfee8244ab96d9c091668859e9e72ded4890e6efde68b25'
      responses:
        '200':
          description: The block information
          content:
            application/json:
              schema:
                type: object
                properties:
                  jsonrpc:
                    type: string
                  id:
                    type: integer
                  result:
                    type: string
  /eth_getBlockTransactionCountByNumber:
    post:
      tags:
      - Blocks Info
      summary: eth_getBlockTransactionCountByNumber
      operationId: getBlockTransactionCountByNumber
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                id:
                  type: integer
                  default: 1
                jsonrpc:
                  type: string
                  default: '2.0'
                method:
                  type: string
                  default: eth_getBlockTransactionCountByNumber
                params:
                  type: array
                  items:
                    type: string
                    title: Block identifier
                    description: The block number or tag.
                  default:
                  - latest
      responses:
        '200':
          description: The block transaction count information
          content:
            application/json:
              schema:
                type: object
                properties:
                  jsonrpc:
                    type: string
                  id:
                    type: integer
                  result:
                    type: string
  /eth_newBlockFilter:
    post:
      summary: eth_newBlockFilter
      operationId: newBlockFilter
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                jsonrpc:
                  type: string
                  default: '2.0'
                method:
                  type: string
                  default: eth_newBlockFilter
                params:
                  type: array
                  default: []
                id:
                  type: integer
                  default: 1
      responses:
        '200':
          description: The new filter ID.
          content:
            application/json:
              schema:
                type: object
                properties:
                  jsonrpc:
                    type: string
                  id:
                    type: integer
                  result:
                    type: array
                    items:
                      type: string
      tags:
      - Blocks Info
  /eth_getBlockReceipts:
    post:
      tags:
      - Blocks Info
      summary: eth_getBlockReceipts
      operationId: getBlockReceipts
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                id:
                  type: integer
                  default: 1
                jsonrpc:
                  type: string
                  default: '2.0'
                method:
                  type: string
                  default: eth_getBlockReceipts
                params:
                  type: array
                  items:
                    anyOf:
                    - type: string
                      title: Block
                      description: Block number or tag (latest, earliest, pending).
                  default:
                  - latest
      responses:
        '200':
          description: Returns all transaction receipts for a given block.
          content:
            application/json:
              schema:
                type: object
                properties:
                  jsonrpc:
                    type: string
                  id:
                    type: integer
                  result:
                    type: object
                    nullable: true
  /eth_getHeaderByHash:
    post:
      tags:
      - Blocks Info
      summary: eth_getHeaderByHash
      operationId: getHeaderByHash
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                id:
                  type: integer
                  default: 1
                jsonrpc:
                  type: string
                  default: '2.0'
                method:
                  type: string
                  default: eth_getHeaderByHash
                params:
                  type: array
                  items:
                    anyOf:
                    - type: string
                      title: Block hash
                      description: Hash of the block.
                  default:
                  - '0x0000000000000000000000000000000000000000000000000000000000000000'
      responses:
        '200':
          description: Returns the block header by block hash.
          content:
            application/json:
              schema:
                type: object
                properties:
                  jsonrpc:
                    type: string
                  id:
                    type: integer
                  result:
                    type: object
                    nullable: true
  /eth_getHeaderByNumber:
    post:
      tags:
      - Blocks Info
      summary: eth_getHeaderByNumber
      operationId: getHeaderByNumber
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                id:
                  type: integer
                  default: 1
                jsonrpc:
                  type: string
                  default: '2.0'
                method:
                  type: string
                  default: eth_getHeaderByNumber
                params:
                  type: array
                  items:
                    anyOf:
                    - type: string
                      title: Block
                      description: Block number or tag (latest, earliest, pending).
                  default:
                  - latest
      responses:
        '200':
          description: Returns the block header by block number.
          content:
            application/json:
              schema:
                type: object
                properties:
                  jsonrpc:
                    type: string
                  id:
                    type: integer
                  result:
                    type: object
                    nullable: true
  /eth_getUncleByBlockHashAndIndex:
    post:
      tags:
      - Blocks Info
      summary: eth_getUncleByBlockHashAndIndex
      operationId: getUncleByBlockHashAndIndex
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                id:
                  type: integer
                  default: 1
                jsonrpc:
                  type: string
                  default: '2.0'
                method:
                  type: string
                  default: eth_getUncleByBlockHashAndIndex
                params:
                  type: array
                  items:
                    anyOf:
                    - type: string
                      title: Block hash
                      description: Hash of the block.
                    - type: string
                      title: Uncle index
                      description: The uncle index position.
                  default:
                  - '0x0000000000000000000000000000000000000000000000000000000000000000'
                  - '0x0'
      responses:
        '200':
          description: Returns information about an uncle by block hash and uncle index position.
          content:
            application/json:
              schema:
                type: object
                properties:
                  jsonrpc:
                    type: string
                  id:
                    type: integer
                  result:
                    type: object
                    nullable: true
  /eth_getUncleByBlockNumberAndIndex:
    post:
      tags:
      - Blocks Info
      summary: eth_getUncleByBlockNumberAndIndex
      operationId: getUncleByBlockNumberAndIndex
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                id:
                  type: integer
                  default: 1
                jsonrpc:
                  type: string
                  default: '2.0'
                method:
                  type: string
                  default: eth_getUncleByBlockNumberAndIndex
                params:
                  type: array
                  items:
                    anyOf:
                    - type: string
                      title: Block
                      description: Block number or tag (latest, earliest, pending).
                    - type: string
                      title: Uncle index
                      description: The uncle index position.
                  default:
                  - latest
                  - '0x0'
      responses:
        '200':
          description: Returns information about an uncle by block number and uncle index position.
          content:
            application/json:
              schema:
                type: object
                properties:
                  jsonrpc:
                    type: string
                  id:
                    type: integer
                  result:
                    type: object
                    nullable: true
  /eth_getUncleCountByBlockHash:
    post:
      tags:
      - Blocks Info
      summary: eth_getUncleCountByBlockHash
      operationId: getUncleCountByBlockHash
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                id:
                  type: integer
                  default: 1
                jsonrpc:
                  type: string
                  default: '2.0'
                method:
                  type: string
                  default: eth_getUncleCountByBlockHash
                params:
                  type: array
                  items:
                    anyOf:
                    - type: string
                      title: Block hash
                      description: Hash of the block.
                  default:
                  - '0x0000000000000000000000000000000000000000000000000000000000000000'
      responses:
        '200':
          description: Returns the number of uncles in a block from a block matching the given block hash.
          content:
            application/json:
              schema:
                type: object
                properties:
                  jsonrpc:
                    type: string
                  id:
                    type: integer
                  result:
                    type: object
                    nullable: true
  /eth_getUncleCountByBlockNumber:
    post:
      tags:
      - Blocks Info
      summary: eth_getUncleCountByBlockNumber
      operationId: getUncleCountByBlockNumber
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                id:
                  type: integer
                  default: 1
                jsonrpc:
                  type: string
                  default: '2.0'
                method:
                  type: string
                  default: eth_getUncleCountByBlockNumber
                params:
                  type: array
                  items:
                    anyOf:
                    - type: string
                      title: Block
                      description: Block number or tag (latest, earliest, pending).
                  default:
                  - latest
      responses:
        '200':
          description: Returns the number of uncles in a block from a block matching the given block number.
          content:
            application/json:
              schema:
                type: object
                properties:
                  jsonrpc:
                    type: string
                  id:
                    type: integer
                  result:
                    type: object
                    nullable: true