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io.github.Fabio662/yieldagentx402

Registre officiel IA et agents

Policy-gated x402 MCP for agent workflows with TEE receipts, 18 tools, and no custody.

Code source Site web Documentation

Installation

Ajoutez ceci à la configuration MCP de votre client (Claude Desktop : claude_desktop_config.json ; Cursor : .cursor/mcp.json ; VS Code et les autres utilisent la même forme « mcpServers »).

NPM package agentx402-mcp-server
Claude Code 
claude mcp add yieldagentx402 -e 'YAX_API_KEY=<your yax_api_key>' -e 'YAX_AGENT_ID=<YAX_AGENT_ID>' -e 'YAX_MCP_ENDPOINT=<YAX_MCP_ENDPOINT>' -- npx -y agentx402-mcp-server@1.0.4
Configuration JSON (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "yieldagentx402": {
            "command": "npx",
            "args": [
                "-y",
                "agentx402-mcp-server@1.0.4"
            ],
            "env": {
                "YAX_API_KEY": "<your yax_api_key>",
                "YAX_AGENT_ID": "<YAX_AGENT_ID>",
                "YAX_MCP_ENDPOINT": "<YAX_MCP_ENDPOINT>"
            }
        }
    }
}

Variables d'environnement

  • YAX_API_KEY obligatoire secret YieldAgentX402 API key from https://yieldagentx402.app/apply
  • YAX_AGENT_ID obligatoire Your agent ID from the dashboard.
  • YAX_MCP_ENDPOINT Optional full MCP endpoint override (default: https://api.yieldagentx402.app/mcp).

Documentation

Tirée du README du projet sur GitHub, actualisée chaque semaine. Les liens ouvrent GitHub.

Sommaire
  1. YieldAgentX402 SDKs
  2. Packages in this repo
  3. Try without signup
  4. What is YieldAgentX402?
  5. Custody-free wallet — one MPC key, three chains
  6. Live infra
  7. Contributing
  8. License

YieldAgentX402 SDKs

Public client libraries and integrations for YieldAgentX402 — the custody-free, policy-gated, receipt-backed execution layer for AI agents.

Platform · MCP Docs · Try without signup · Get API key

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

PackageRegistryWhat it does
sdk-ts/npm: yieldagentx402Typed 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-serverStdio MCP wrapper. Drop into Claude Desktop / Code / Cursor / Windsurf for all 18 YieldAgentX402 tools across 18 chains. Glama: listing.
verify-lib/npm: yieldagentx402-verifyZero-dependency WebCrypto verifier for receipts + webhook signatures. Works in browser, Node 18+, Cloudflare Workers, Deno.
crewai-tools/PyPI: crewai-yieldagentx402-toolsCrewAI tool wrappers — policy dry-run, x402 payment, secure workflow, receipt verify, Shade Agent MPC wallet status.
langchain-tools/PyPI: yieldagentx402-langchainLangChain tool wrappers — discovery, policy preview, receipt verify, action planner (MCP gateway).

Try without signup

curl -X POST https://api.yieldagentx402.app/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call",
       "params":{"name":"yax_get_capabilities","arguments":{}}}'

No API key required. Returns all 18 tools, 18 chains, rate limits, fees, supported runtime configs.

Want an instant test key?

curl -X POST https://api.yieldagentx402.app/api/apply \
  -H "Content-Type: application/json" \
  -d '{"agent_name":"my-agent"}'

Returns a yax_test_* key (5 USD cap, 7-day expiry) for safe read-only tools.

What is YieldAgentX402?

A trust layer for agents that move money.

  • 18 MCP tools — discovery, secure workflow execution, x402 payment settlement, policy dry-run, approvals, receipt verification, attestation, finance/CRM skill tools
  • 18 chains — Base, Ethereum, Bitcoin (native), Starknet, NEAR, Solana, Stacks, BNB, Rootstock, Filecoin EVM + native, Aptos, Sui, TON, Tron, XRPL, Stellar, Algorand
  • Custody-free wallet — one NEAR MPC key authority derives EVM + BTC addresses on demand. No private keys held by the gateway or worker. Starknet uses Stark curve preset.
  • Intel TDX TEE attestation — mrEnclave verifiable at /api/tee/report
  • HMAC-SHA256 receipts — every call returns a signed receipt
  • Filecoin + BTFS dual anchoring — permanent tamper-proof proof storage
  • x402 protocol settlement — 0.25% protocol fee, machine-verifiable in /.well-known/x402 as extra.protocolFeeBps: 25

Custody-free wallet — one MPC key, three chains

ChainAddressCurve
EVM (Base/Eth)0x6905D04C3655625F6171f7b1e801a9325B1Fa1e8secp256k1 (MPC)
Bitcoin (P2WPKH)bc1qcd8ljsj7x0rq3sw7drrt7ragqmmt3tfsfxs6gysecp256k1 (MPC)
Starknet0x003a4e08…570906a21Stark (preset)

Live manifest: https://shade-agent-worker.cryptoblac.workers.dev/api/wallet

Live infra

SurfaceURL
MCP endpointhttps://api.yieldagentx402.app/mcp
Public discoveryPOST /mcp with yax_get_capabilities (no auth)
Instant test keyPOST /api/apply
Ready-to-paste configsGET /api/agent-onboard
x402 manifesthttps://api.yieldagentx402.app/.well-known/x402
MCP manifesthttps://api.yieldagentx402.app/.well-known/mcp.json
Statushttps://api.yieldagentx402.app/api/status
TEE reporthttps://api.yieldagentx402.app/api/tee/report
Shade Agent wallethttps://shade-agent-worker.cryptoblac.workers.dev/api/wallet
Receipt verifier (UI)https://yieldagentx402.app/verify
Postman collectionhttps://yieldagentx402.app/postman/yieldagentx402.postman_collection.json

Contributing

Issues and PRs on the public SDK packages are welcome here. Platform-level changes (gateway, policy engine, TEE worker) happen in a private repo — open an issue if you have a feature request and we'll triage.

License

MIT — see LICENSE.

Questions fréquentes

Qu'est-ce que io.github.Fabio662/yieldagentx402 ?

Policy-gated x402 MCP for agent workflows with TEE receipts, 18 tools, and no custody.

Comment installer io.github.Fabio662/yieldagentx402 ?

Il s'exécute sur votre machine. Dans Claude Code : claude mcp add yieldagentx402 -e 'YAX_API_KEY=<your yax_api_key>' -e 'YAX_AGENT_ID=<YAX_AGENT_ID>' -e 'YAX_MCP_ENDPOINT=<YAX_MCP_ENDPOINT>' -- npx -y agentx402-mcp-server@1.0.4. Pour les autres clients, collez la configuration JSON de cette page dans leurs réglages MCP.

Faut-il une clé API pour io.github.Fabio662/yieldagentx402 ?

Oui. Il attend YAX_API_KEY, YAX_AGENT_ID, à renseigner dans sa configuration.

io.github.Fabio662/yieldagentx402 est-il open source ?

Oui. Son code est sur GitHub sous licence MIT.

Qui maintient io.github.Fabio662/yieldagentx402 ?

Il est publié par Fabio662. AI.tn le référence sans le maintenir ni le recommander.

Issu du registre MCP officiel. Être listé n'est pas une recommandation : vérifiez le code et les permissions d'un serveur avant de lui donner accès à vos données.