Is Yieldagentx402 Sdks free?

Yes, Yieldagentx402 Sdks is free to use.

How do I install Yieldagentx402 Sdks?

Yieldagentx402 Sdks is a local plugin. Install it using npm package: agentx402-mcp-server and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

What credentials does Yieldagentx402 Sdks need?

Yieldagentx402 Sdks requires the following credentials or environment variables: YAX_API_KEY, YAX_AGENT_ID, YAX_MCP_ENDPOINT. You can find setup instructions on the server detail page.

What AI apps work with Yieldagentx402 Sdks?

Yieldagentx402 Sdks uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

Back to Browse

Yieldagentx402 Sdks MCP Server

by Fabio662

Developer ToolsLow Risk8.0MCP RegistryLocal

Free

Server data from the Official MCP Registry

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

About

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

Security Report

8.0

Low Risk8.0Low Risk

Valid MCP server (3 strong, 4 medium validity signals). 4 known CVEs in dependencies Package registry verified. Imported from the Official MCP Registry.

12 files analyzed · 5 issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

env_vars

Check that this permission is expected for this type of plugin.

HTTP Network Access

Connects to external APIs or services over the internet.

What You'll Need

Set these up before or after installing:

YieldAgentX402 API key from https://yieldagentx402.app/applyRequired

Environment variable: YAX_API_KEY

Your agent ID from the dashboard.Optional

Environment variable: YAX_AGENT_ID

Optional full MCP endpoint override (default: https://api.yieldagentx402.app/mcp).Optional

Environment variable: YAX_MCP_ENDPOINT

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-fabio662-yieldagentx402": {
      "env": {
        "YAX_API_KEY": "your-yax-api-key-here",
        "YAX_AGENT_ID": "your-yax-agent-id-here",
        "YAX_MCP_ENDPOINT": "your-yax-mcp-endpoint-here"
      },
      "args": [
        "-y",
        "agentx402-mcp-server"
      ],
      "command": "npx"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

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

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).

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

Chain	Address	Curve
EVM (Base/Eth)	`0x6905D04C3655625F6171f7b1e801a9325B1Fa1e8`	secp256k1 (MPC)
Bitcoin (P2WPKH)	`bc1qcd8ljsj7x0rq3sw7drrt7ragqmmt3tfsfxs6gy`	secp256k1 (MPC)
Starknet	`0x003a4e08…570906a21`	Stark (preset)

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

Live infra

Surface	URL
MCP endpoint	https://api.yieldagentx402.app/mcp
Public discovery	`POST /mcp` with `yax_get_capabilities` (no auth)
Instant test key	`POST /api/apply`
Ready-to-paste configs	`GET /api/agent-onboard`
x402 manifest	https://api.yieldagentx402.app/.well-known/x402
MCP manifest	https://api.yieldagentx402.app/.well-known/mcp.json
Status	https://api.yieldagentx402.app/api/status
TEE report	https://api.yieldagentx402.app/api/tee/report
Shade Agent wallet	https://shade-agent-worker.cryptoblac.workers.dev/api/wallet
Receipt verifier (UI)	https://yieldagentx402.app/verify
Postman collection	https://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.

Reviews

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Yieldagentx402 Sdks MCP Server

About

Security Report

Findings (5)

Permissions Required

What You'll Need

How to Install

Documentation

YieldAgentX402 SDKs

Packages in this repo

Try without signup

What is YieldAgentX402?

Custody-free wallet — one MPC key, three chains

Live infra

Contributing

License

Reviews

No reviews yet

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