# X402 Buyer MCP server

Agent View of the PolicyLayer registry record for X402 Buyer: identity, probed posture, risk grade, and all 4 tools classified. HTML page: https://policylayer.com/tools/8randonpickart5-x402-buyer-mcp

## Facts

- Server id: `8randonpickart5/x402-buyer-mcp`
- Homepage: https://github.com/8randonpickart5/x402-buyer-mcp
- Registry record: grade D, identity unverified
- Lifecycle: active
- Rate-limited: no
- Tools: 4
- Tool categories present: Execute, Read, Write
- Tags: 8randonpickart5 x402 buyer mcp, automation
- Record last modified: 2026-07-03T11:03:48.571Z

## Tools (4)

| Tool | Category | Risk | Record |
| --- | --- | --- | --- |
| `x402_research` | Execute | High | https://policylayer.com/tools/8randonpickart5-x402-buyer-mcp/x402-research.md |
| `x402_call` | Financial | Critical | https://policylayer.com/tools/8randonpickart5-x402-buyer-mcp/x402-call.md |
| `x402_balance` | Read | Low | https://policylayer.com/tools/8randonpickart5-x402-buyer-mcp/x402-balance.md |
| `x402_discover` | Read | Low | https://policylayer.com/tools/8randonpickart5-x402-buyer-mcp/x402-discover.md |

## Tool descriptions

- `x402_research` — Run comprehensive research by calling multiple x402 endpoints in parallel. Given a subject (domain, IP, address, drug name, or sport), this tool: 1. Detects the input type automatically 2. Finds all relevant x402 endpoints (local registr…
- `x402_call` — Call any x402 paid API endpoint with automatic USDC payment via AgentCash. Accepts a full URL with query parameters. Handles the complete x402 payment flow: 1. Sends request → receives 402 payment requirement 2. Signs USDC payment on Bas…
- `x402_balance` — Check your AgentCash USDC wallet balance on Base. Returns current balance available for x402 payments and approximate number of calls you can afford. No parameters required. If AgentCash is not set up, provides instructions to create and…
- `x402_discover` — Search for x402 paid API endpoints that can answer a question or provide data. Discovery powered by Decixa (5,500+ verified x402 endpoints) with local registry fallback. Searches across the entire x402 ecosystem — not just Alderpost endp…

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## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=8randonpickart5-x402-buyer-mcp · API: https://policylayer.com/registry/api · Recommended policies for every tool: https://policylayer.com/policies/8randonpickart5-x402-buyer-mcp