@true402.dev/mcp-server provides pay-per-call access to AI inference, web analysis, and blockchain tools via x402 micropayments (USDC on Base) — no accounts or API keys needed, just a funded wallet.
AI Inference
chat — Send chat completions to many LLMs (GPT-4o, Claude, Gemini, etc.), priced per token + 3%
list_models (free) — List available models with live per-token pricing
Web Analysis
web_extract — Fetch any URL and return clean text, markdown, links, and metadata
link_preview — Fetch a URL's Open Graph card (title, description, image, favicon)
seo_audit — Full SEO + generative-engine optimization (GEO) audit with structured scores and issues
robots_check — Check a site's AI-crawler policy (GPTBot, ClaudeBot, etc.), sitemaps, and llms.txt
headers_check — Analyze HTTP security headers (HSTS, CSP, etc.) with a 0–100 score
Blockchain / Token Safety (Base)
token_safety — Rug/honeypot pre-check: ERC-20 conformance, ownership, mint capability, liquidity depth, buy/sell simulation, and risk score
token_report — Composite report combining token safety, liquidity-pull history, and whale activity into a single verdict (ok/caution/avoid)
address_safety — Structural profile of any Base address: EOA vs. contract, balances, tx count, proxy detection, and risk flags
deployer_check — Deployer wallet reputation: age, balance, contracts shipped, and throwaway-wallet detection
new_pairs — Recently created DEX pairs (Uniswap V3 / Aerodrome) for fresh token launch monitoring
liquidity_pulls — Liquidity-removal / rug alerts on Base DEX pools
whale_swaps — Large USD-value swaps on Base DEX pools for whale-flow signals
All paid tools use x402 micropayments: the server signs EIP-3009 USDC authorizations from the configured wallet; gas is sponsored. Without a wallet, paid tools return payment requirements instead of executing.
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@@true402.dev/mcp-server check token safety for 0x1f984"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
MCP server for the true402 machine-native marketplace — give your agent pay-per-call access to AI inference and web tools over x402 (HTTP 402 micropayments in USDC on Base).
No accounts, no API keys. The agent's wallet is its identity: each paid tool returns an HTTP 402 challenge, the server signs an EIP-3009 USDC authorization, and the call settles on-chain. Configure a funded wallet to auto-pay, or run without one and the paid tools will surface the exact payment requirements instead of failing.
Tool | Price | What it does |
| per-token + 3% | OpenAI-compatible LLM inference across many models |
| free | List available models + pricing |
| $0.005 | ERC-20 rug/honeypot pre-check on Base → 0–100 score, risk band, flags, liquidity depth + a buy/sell honeypot simulation |
| $0.04/page | SEO + GEO (generative-engine-optimization) audit of a page → structured report |
| $0.005 | Fetch a URL → clean text + markdown + links + metadata |
| $0.003 | Fetch a URL → Open Graph / unfurl card |
| $0.003 | A site's AI-crawler policy (GPTBot, ClaudeBot, Google-Extended, PerplexityBot, …) + sitemaps + llms.txt |
| $0.003 | HTTP security-headers analysis (HSTS, CSP, …) + a 0–100 score |
| $0.003 | Newly created Base DEX pairs (Uniswap V3 / Aerodrome) — fresh token launches |
| $0.003 | Liquidity-removal / rug alerts on Base pools |
| $0.005 | Large swaps on Base by USD size — whale flow |
| $0.01 | Fuller on-chain token report |
Tools are auto-discovered from the live catalog, so new marketplace stalls appear automatically. Prices are illustrative; the live 402 challenge is authoritative.
Related MCP server: AgentPay
A copy-paste reference in examples/token-safety/ — a framework-agnostic
x402 client plus a drop-in LangChain tool that rug/honeypot-checks any Base token for $0.005/call.
Requires Node.js ≥ 20. Runs over stdio — point any MCP client at it via npx.
Add to your MCP config (claude_desktop_config.json, or .mcp.json for Claude Code):
{
"mcpServers": {
"true402": {
"command": "npx",
"args": ["-y", "@true402.dev/mcp-server"],
"env": {
"WALLET_PRIVATE_KEY": "0xYOUR_FUNDED_BASE_WALLET_KEY"
}
}
}
}Same idea — command npx, args ["-y", "@true402.dev/mcp-server"], and the WALLET_PRIVATE_KEY env var.
Env var | Default | Description |
|
| true402 API base. Override to point at a self-hosted instance. |
| (none) | A funded Base wallet private key used to sign x402 payments. Needs USDC (gas is sponsored by the facilitator — no ETH required). Without it, paid tools return the 402 requirements instead of paying. |
Security: the key is read only from the environment and is never logged, echoed, or returned. Use a dedicated low-balance wallet — fund it with only what you intend to spend.
The tool calls the true402 endpoint with no payment.
The server replies 402 with accepted payment options (USDC on Base).
This MCP server signs an EIP-3009 transferWithAuthorization with your wallet.
It retries with the signed X-PAYMENT header; the service verifies and responds.
Settlement happens on-chain. Your wallet pays only USDC — the facilitator sponsors gas.
Marketplace: https://true402.dev
Free Telegram rug-check bot (no wallet): https://t.me/True402bot
Live tool catalog: https://true402.dev/api/v1/services
x402 protocol: https://x402.org
MCP (Claude Code / Desktop, Cursor, Hermes) · Hermes Agent · OpenClaw · ElizaOS · LangChain · CrewAI · Vercel AI SDK · Coinbase AgentKit · Virtuals GAME · CLI — same on-chain checks, one install command each: true402.dev/integrations
MIT
Unclaimed servers have limited discoverability.
If you are the server author, to access and configure the admin panel.
Agent-commerce MCP server for x402/USDC payments and affiliate splits on Base.
Attribution and settlement infrastructure for AI agent content access over HTTP 402 and MCP.
Agent x402 Paywall MCP — Coinbase HTTP 402 protocol + on-chain settlement. Agents pay per-call
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