YieldAgentX402 SDKs
Public client libraries and integrations for YieldAgentX402 — the custody-free, policy-gated, receipt-backed execution layer for AI agents.
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This repo hosts the open-source distribution packages. The platform itself (gateway, ShadeGuard policy engine, TEE attestation, orchestrator, Filecoin/BTFS anchoring) lives in a separate private repository — we ship the bits agents need to use the platform here.
Packages in this repo
| Package | Registry | What it does |
|---|---|---|
sdk-ts/ |
npm: yieldagentx402 |
Typed TypeScript SDK. Wraps all 18 MCP tools with first-class types, idempotency, webhook verify, Shade Agent helpers. Zero deps. Works in Node, browsers, Workers, Deno, Bun. |
mcp-server/ |
npm: agentx402-mcp-server |
Stdio MCP wrapper. Drop into Claude Desktop / Code / Cursor / Windsurf for all 18 YieldAgentX402 tools across 18 chains. Glama: listing. |
verify-lib/ |
npm: yieldagentx402-verify |
Zero-dependency WebCrypto verifier for receipts + webhook signatures. Works in browser, Node 18+, Cloudflare Workers, Deno. |
crewai-tools/ |
PyPI: crewai-yieldagentx402-tools |
CrewAI tool wrappers — policy dry-run, x402 payment, secure workflow, receipt verify, Shade Agent MPC wallet status. |
langchain-tools/ |
PyPI: yieldagentx402-langchain |
LangChain tool wrappers — discovery, policy preview, receipt verify, action planner (MCP gateway). |






