Mcp Server
dev.true402/mcp-server is a MCP server that connects coding agents to pay-per-call AI, web, SEO, extract, and token-safety tools settled with USDC on Base via x402.
About
dev.true402/mcp-server is an npm stdio MCP server that exposes true402’s paid AI, web, SEO, extraction, and token-safety tools to Claude Desktop and Claude Code. developers use it when they want agent-driven calls metered per request via the x402 protocol on Base in USDC, rather than pre-provisioning many SaaS API keys. Configure SERVER_URL (default https://true402.dev/api), optionally fund WALLET_PRIVATE_KEY for automatic payment signing, and set MAX_PAYMENT_USDC to cap each call. The signer refuses cleartext remote URLs and refuses payments above your ceiling—useful when experimenting with new endpoints. It fits agents shipping integrations fast, crypto-curious products validating token risk, or SEO probes without long-term subscriptions. It is not a free inference host; unpaid mode only surfaces 402 payment metadata.
- Pay-per-call x402 settlement in USDC on Base with optional auto-sign via WALLET_PRIVATE_KEY
- Client-side MAX_PAYMENT_USDC ceiling (default 0.10) blocks oversized 402 responses
- HTTPS-only SERVER_URL policy for payment signing over non-localhost endpoints
- Bundled tool families: LLM, SEO, web extract, and on-chain token safety
- Without a funded wallet key, paid tools return 402 requirements instead of charging silently
Mcp Server by the numbers
- Data as of Jul 7, 2026 (Skillselion catalog sync)
claude mcp add --env WALLET_PRIVATE_KEY=YOUR_WALLET_PRIVATE_KEY --env SERVER_URL=YOUR_SERVER_URL --env MAX_PAYMENT_USDC=YOUR_MAX_PAYMENT_USDC mcp-server -- npx -y @true402.dev/mcp-serverAdd your badge
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| Package | @true402.dev/mcp-server |
|---|---|
| Transport | STDIO |
| Auth | Required |
What it does
Wire Claude Code to true402’s pay-per-call stack (LLM, web, SEO, extract, token checks) with USDC x402 on Base instead of juggling separate API keys and billing.
Who is it for?
agent workflows that want metered access to LLM/web/SEO/on-chain checks on Base without monthly bundles.
Skip if: Skip if you need flat-rate unlimited inference, no crypto wallet, or production spend without explicit payment governance.
What you get
After install, your agent can invoke true402 tools with optional auto-pay under a USDC per-call cap, or inspect 402 requirements without signing.
- Agent-callable true402 tool surface over MCP stdio
- 402 payment requirements or signed paid tool responses within MAX_PAYMENT_USDC
By the numbers
- Default MAX_PAYMENT_USDC client ceiling: 0.10 USDC per call
- Default API base: https://true402.dev/api
- Registry version: 0.7.0
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Pay-per-call x402 MCP gateway, not a single-purpose free scraper or local Ollama skill.
FAQ
Who is dev.true402/mcp-server for?
Developers using Claude Code or Claude Desktop who want one MCP for metered AI, web, SEO, and token-safety calls on true402.
When should I use dev.true402/mcp-server?
Use it during Build and Launch when you need agent-callable tools and prefer USDC per-call pricing with an optional wallet signer and spend ceiling.
How do I add dev.true402/mcp-server to my agent?
Install the npm package @true402.dev/mcp-server, add it as a stdio MCP server, set SERVER_URL and MAX_PAYMENT_USDC, and optionally WALLET_PRIVATE_KEY for auto-pay on 402 responses.