openapi: 3.1.0
info:
  title: EOSIO / Antelope Nodeos Chain Get Abi Get Required Keys 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 Required Keys
paths:
  /get_required_keys:
    post:
      summary: Get required keys for a transaction
      description: Given a transaction and a set of available keys, returns the subset of keys actually required to authorize the transaction.
      operationId: getRequiredKeys
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                transaction:
                  type: object
                available_keys:
                  type: array
                  items:
                    type: string
              required:
              - transaction
              - available_keys
      responses:
        '200':
          description: Required keys.
          content:
            application/json:
              schema:
                type: object
                properties:
                  required_keys:
                    type: array
                    items:
                      type: string
      tags:
      - Get Required Keys