Hyperledger Besu JSON-RPC API

naftiko: 1.0.0-alpha2
info:
  label: Hyperledger Besu JSON-RPC API
  description: Hyperledger Besu is an Ethereum client written in Java that exposes a JSON-RPC 2.0 API over HTTP and WebSockets.
    The API provides namespaces including admin, debug, eth, net, web3, txpool, miner, and trace for interacting with Ethereum-compatible
    networks, smart contracts, and node operations.
  tags:
  - Hyperledger
  - API
  created: '2026-05-06'
  modified: '2026-05-06'
capability:
  consumes:
  - type: http
    namespace: hyperledger
    baseUri: https://besu.example.com
    description: Hyperledger Besu JSON-RPC API HTTP API.
    resources:
    - name: resource
      path: /
      operations:
      - name: jsonrpccall
        method: POST
        description: JSON-RPC endpoint
        outputRawFormat: json
        outputParameters:
        - name: result
          type: object
          value: $.
  exposes:
  - type: rest
    port: 8080
    namespace: hyperledger-rest
    description: REST adapter for Hyperledger Besu JSON-RPC API.
    resources:
    - path: /
      name: jsonrpccall
      operations:
      - method: POST
        name: jsonrpccall
        description: JSON-RPC endpoint
        call: hyperledger.jsonrpccall
        outputParameters:
        - type: object
          mapping: $.
  - type: mcp
    port: 9090
    namespace: hyperledger-mcp
    transport: http
    description: MCP adapter for Hyperledger Besu JSON-RPC API for AI agent use.
    tools:
    - name: jsonrpccall
      description: JSON-RPC endpoint
      hints:
        readOnly: false
        destructive: false
        idempotent: false
      call: hyperledger.jsonrpccall
      outputParameters:
      - type: object
        mapping: $.