MCP.Market

Yieldagentx402 MCP server

by Fabio662·io.github.Fabio662/yieldagentx402·v1.0.4·2 stars
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Policy-gated x402 MCP for agent workflows with TEE receipts, 18 tools, and no custody.

B72/100grade B
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Safety scan
B72/100

full report

Adoption
New

2 stars35 downloads/wk

Reviews

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If you have run it, two minutes of your experience saves the next person an afternoon.

Yieldagentx402 tools

No tool declarations could be read from the package source. They show once the server is installed.

Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings
  • Code scan8 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitystatic API keys via environment variables6/15
  • Maintenancelast push 131 days ago8/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10
Overall 72/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Yieldagentx402 compares

Against every graded AI and agents MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
72/100
higher than 40% of 4,460 AI and agents servers
GitHub stars
2
more than 65% of 2,711 AI and agents servers
Downloads a week
35
more than 25% of 1,538 AI and agents servers with a package

Install Yieldagentx402 in Claude Code, Cursor or VS Code

Runs npx -y agentx402-mcp-server on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add yieldagentx402 -- npx -y agentx402-mcp-server
Add to Cursor

What the publisher says

From the Yieldagentx402 repository's README, as published. We do not edit it. Read it on GitHub

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

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 yaxtest 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

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Yieldagentx402: common questions

Is Yieldagentx402 MCP server safe?
Mostly: it is graded B (72/100). Read the Yieldagentx402 safety report
How do I install Yieldagentx402?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Yieldagentx402 need an API key?
Yes. The registry entry asks for YAX_API_KEY.
Is Yieldagentx402 maintained?
The last commit was 169 days ago (2026-05-19). The latest release is v1.0.4.
What can I use instead of Yieldagentx402?
Servers from other publishers that do the same job: Emilia Protocol MCP server, Agoragentic Agent OS MCP server and three.ws Billing MCP server.
How does Yieldagentx402 compare with other AI and agents MCP servers?
safety score 72/100 (higher than 40% of 4,460 AI and agents servers); github stars 2 (more than 65% of 2,711 AI and agents servers); downloads a week 35 (more than 25% of 1,538 AI and agents servers with a package). Full comparison.

Alternatives to Yieldagentx402

Same job from other publishers: the closest match first, then the best rated.

  • Emilia Protocol
    Exact-action approval for consequential agent actions: request, track, and verify signed receipts.
    B
  • Agoragentic Agent OS MCP
    Triptych OS (Agent OS) MCP for governed routing, receipts, and USDC settlement on Base.
    B
  • three.ws Billing
    An agent's account economics — plan quotas, metered usage, invoices, receipts, and earnings.
    B
  • Ausca
    Pay-per-call APIs and MCP services for agents, no accounts or keys, with verifiable receipts.
    A
  • Emulo
    Mine your AI coding session logs into a you.md profile with dated receipts, for an agent to read.
    A