The full upstream README, mirrored here for reference. Install config, tool schemas, adoption signals, and an original overview live on the AgentBIT listing page.
Remote MCP server exposing 28+ pay-per-call API tools for AI agents — paid per request with USDC on Base via the x402 protocol (no accounts, no API keys, no subscriptions). First call is free for new wallets on most tools.
https://agentbit.app/mcp (Streamable HTTP, JSON-RPC 2.0)x402-fetch-payClaude Desktop / any MCP client with remote server support:
tools/list works immediately. The agentbit_discover operation is free — search 7,000+ indexed x402 resources across the ecosystem without paying anything.
Paid tools follow x402 v2: call a tool without payment and the response returns the exact payment requirements (price in USDC atomic units, network eip155:8453, pay-to address) as structured content. Sign an EIP-3009 USDC authorization with your agent's wallet and retry with the _payment argument — settlement is gasless for the buyer and runs through the Coinbase CDP facilitator. The x402-fetch-pay npm package does the whole loop in one call.
| Tool | Price | What it does |
|---|---|---|
web-search | $0.015 | Live web search: ranked results with title, URL, snippet, date |
web-extract | $0.005 | Fetch a URL → clean text, markdown and links |
structured-extract | $0.01 | JSON-LD / OpenGraph / Twitter Card metadata from any page |
feed-read | $0.005 | Any RSS/Atom feed → normalized JSON (auto-discovery from HTML) |
wiki-facts | $0.005 | Wikipedia search + summary in 300+ languages |
paper-search | $0.01 | Academic search across OpenAlex, Crossref, arXiv with OA PDF links |
reddit-search | $0.02 | Search Reddit posts by keyword |
company-enrich | $0.10 | Company data from a domain: name, tech stack, socials |
company-research | $0.10 | One-call due-diligence dossier |
business-identity | $0.003 | Legal entity lookup via GLEIF (LEI) |
email-deliverability | $0.03 | Syntax, MX, SPF, DMARC, disposable detection |
counterparty-risk | $0.05 | Domain/company/email risk screening (DNS, SSL, reachability) |
domain-intel | $0.02 | RDAP registry intel: age, registrar, expiry, risk flags |
dns-inspect | $0.01 | Full DNS records + email-posture analysis (SPF/DMARC policies) |
ip-intel | $0.01 | ASN, network holder, prefix, country, abuse contact (RIPEstat) |
url-threat-check | $0.01 | Phishing heuristics + safe redirect trace + malware DB lookup |
endpoint-monitor | $0.005 | Health probe: status, latency, TLS expiry, security headers |
sanctions-screen | $0.02 | Name screening vs OFAC SDN + UN lists (refreshed daily) |
wallet-screen | $0.02 | Wallet address screening: sanctions + on-chain risk signals |
token-risk | $0.02 | ERC-20 audit on Base: verification, owner, holder concentration |
vat-check | $0.02 | LIVE EU VAT validation via VIES (official EC service) |
financial-document | $0.02 | IBAN validation + repair, EU VAT format checks |
fx | $0.005 | Live foreign-exchange rates |
util-transform | $0.001 | Hashing, JWT decode, base64, UUID, JSON/CSV/XML transforms |
website-agent-readiness | $0.05 | Audit a site for AI-agent readiness (robots.txt, llms.txt…) |
x402-intelligence | $0.02 | Market analytics for the x402 ecosystem |
discover | $0.001 | Search 7k+ indexed x402 resources with usage metrics |
x402-inspect | $0.001 | Lint any x402 endpoint/payment header against the v2 spec |
Full, always-current list with schemas: catalog.json.
Every tool is a REST endpoint under https://agentbit.app/v1/... speaking x402 v2 directly — indexed in Coinbase Bazaar, Agent402, x402 Arena and other x402 discovery services. The MCP server and the REST API are the same catalog.
Real-world x402 integration write-ups on the AgentBIT blog: the EIP-712 domain-name trap, CDP JWT signing with Ed25519 in PHP, debugging Bazaar's extensions echo.
Maintained by AgentBIT. This repository documents the remote server; the service itself runs at agentbit.app.