openapi: 3.1.0 info: title: EOSIO / Antelope Nodeos Chain Get Abi Get Block API description: HTTP/JSON RPC interface exposed by the chain_api_plugin in nodeos, the reference EOSIO (now Antelope) blockchain node implementation. The chain API allows clients to read blockchain state, fetch blocks and accounts, inspect ABI and contract data, and submit signed transactions to the network. version: '1.0' contact: name: EOS Network Foundation url: https://eosnetwork.com/ license: name: MIT url: https://github.com/AntelopeIO/leap/blob/main/LICENSE servers: - url: '{node}/v1/chain' description: Nodeos HTTP RPC endpoint with chain_api_plugin enabled. variables: node: default: https://eos.greymass.com description: Base URL of an EOS/Antelope node. tags: - name: Get Block paths: /get_block: post: summary: Get a block by ID or number description: Returns the contents of a block identified by its block number or block ID. operationId: getBlock requestBody: required: true content: application/json: schema: type: object properties: block_num_or_id: type: string description: Block number (decimal) or block ID (hex). example: '12345678' required: - block_num_or_id responses: '200': description: Block contents. content: application/json: schema: type: object tags: - Get Block