generated: '2026-07-19'
method: derived
status: candidate
source: grpc/harmonic-gg-searcher-searcher.proto, grpc/harmonic-gg-searcher-auth.proto, grpc/harmonic-gg-validator-block_engine.proto
note: >-
  Harmonic publishes no official hosted MCP server. This is a candidate tool list
  derived from the published gRPC service operations, provided as a starting point
  for an agent-native surface. Every tool maps to a real gRPC rpc.
server:
  name: harmonic
  transport: grpc-bridge
tools:
- name: generate_auth_challenge
  description: Request a challenge to be signed by a Solana keypair.
  source_operation: grpc/harmonic-gg-searcher-auth.proto#GenerateAuthChallenge
- name: generate_auth_tokens
  description: Exchange a signed challenge for access and refresh tokens.
  source_operation: grpc/harmonic-gg-searcher-auth.proto#GenerateAuthTokens
- name: refresh_access_token
  description: Mint a fresh access token from a valid refresh token.
  source_operation: grpc/harmonic-gg-searcher-auth.proto#RefreshAccessToken
- name: send_bundle
  description: Submit a bundle of transactions for atomic inclusion in a block; returns a server-assigned UUID.
  source_operation: grpc/harmonic-gg-searcher-searcher.proto#SendBundle
- name: get_block_engine_endpoints
  description: Discover available block engine endpoints for optimal region selection.
  source_operation: grpc/harmonic-gg-validator-block_engine.proto#GetBlockEngineEndpoints
- name: set_strategy
  description: Set the scheduling strategy for a validator session.
  source_operation: grpc/harmonic-gg-validator-block_engine.proto#SetStrategy