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@houdiniswap/agent-shared

v0.1.6

Published

Shared HoudiniSwap API client and types for AI agent integrations

Readme

@houdiniswap/agent-shared

Shared HTTP and x402 payment client for the HoudiniSwap agent packages.

You probably do not want to install this directly. It is a runtime dependency of @houdiniswap/mcp-server and @houdiniswap/ai-tools, and is installed automatically with either.

What it provides

  • HoudiniClient — the only thing that talks to the HoudiniSwap partner API. Handles auth headers, query serialisation, typed errors, and a 30s request timeout.
  • createX402Fetch — a fetch wrapper that answers HTTP 402 by signing an EIP-3009 payment authorisation and retrying.

Payment safety

Payment terms arrive from the server in the 402 challenge, so the client bounds what it will sign: USDC on Base only, up to $0.10 per call by default. A server asking for more — or for a different asset or chain — is refused rather than signed.

createX402Fetch(key, { maxPaymentAtomic: 10_000n })  // tighten to $0.01

Payments are serialised with a ~5s floor between them: the facilitator settles each on-chain, and two settlements at once from the same wallet fail. Each payment is bounded at 60s.

MIT · Source