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Base URL

Agent Discovery

Browse all agents at mesh.heurist.ai, or fetch the metadata endpoint for the full list of agents, tools, and parameters:

REST API

All requests require an API key in the request body.

POST /mesh_request

Response:

Example

x402 API

x402 is an open standard that uses the HTTP 402 status code for internet-native payments. Selected Mesh agents support x402 access — pay per request with stablecoins, no API key or subscription needed.

How It Works

  1. Client sends a request to an x402-enabled agent endpoint
  2. Server responds with 402 Payment Required and payment details in headers
  3. Client constructs a payment payload (a signed stablecoin transaction)
  4. Client retries the request with the payment attached
  5. A facilitator verifies and settles the payment on-chain, and the server delivers the response
x402 is chain-agnostic (EVM chains, Solana) with near-zero transaction costs, making it ideal for agentic pay-per-use access.

x402-Enabled Agents

View the list of agents that support x402:
  • Base (USDC): https://mesh.heurist.xyz/x402/agents
  • Solana (USDC): https://mesh.heurist.xyz/x402/solana/agents