Ox402 Utils

45 micro-priced utilities for AI agents: search, screenshots, OCR, whois, geoip, prices. x402 USDC.

Get it
LLM Mart 4 views 8 listing impressions
Transport
Not stated
Package
—
Registry id
io.github.Hasned-spec/ox402-utils

No install snippet on purpose. A working MCP config is a command, its arguments and an environment block — the last two are where API keys live, so this catalogue never stores them and cannot publish them. Follow the link above for the authors' own instructions.

94 capability APIs an AI agent can't run in its own sandbox — paid per call via x402 (USDC on Base). Web research, security recon, neural text-to-speech (Kokoro-82M), speech, document + media conversion, full-page screenshots, SSL/breach audits, SQL sandboxes, embeddings, and more. No accounts, no API keys, no subscription. Free trial: 10 calls/IP on tier=free tools.

Hasned-spec/ox402-utils MCP server

Live site: the current tunnel URL is published in api.txt and /.well-known/x402 on this repo's served docs, and rotates periodically — fetch api.txt for the live endpoint. MCP server: /mcp402/ · Catalog: /x402/catalog · Machine-readable: /llms.txt

Why this exists

An AI agent's sandbox can't open a browser, run a GPU TTS model, scan a host for open ports, or audit a site's TLS. ox402 does those for it — and bills per call in USDC. No signup, no API key, no monthly minimum. Every call is authorized by an on-chain micropayment (x402): hit the endpoint, get a 402 challenge, pay the exact amount, retry with the X-Payment header.

Free trial: 10 calls/IP on tier=free tools. Paid-tier tools always require x402 USDC.

Use it in 30 seconds (curl)

# Free trial (10 calls/IP): no payment needed
curl -X POST http://129.213.128.185/x402/trial/search \
  -H 'Content-Type: application/json' \
  -d '{"query":"x402 protocol","count":3}'

# Paid tier: POST -> 402 challenge -> pay -> retry with X-Payment header
curl -i http://129.213.128.185/x402/paid/search \
  -H 'Content-Type: application/json' \
  -d '{"query":"x402 protocol","count":3}'

The 402 response carries a PAYMENT-REQUIRED challenge with the exact USDC amount and the payTo address. Pay on Base, then repeat the request with the signed payment in the X-Payment header (any x402 client: the Coinbase x402 fetch wrapper, or your own signer). Verified + settled via our self-hosted facilitator (melonask/facilitator) on Base mainnet.

MCP server (Claude / any MCP client)

{
  "mcpServers": {
    "ox402-utils": { "url": "http://129.213.128.185/mcp402/" }
  }
}

tools/list is free and returns all 94 tools (compact ~1.6k-token menu; full schemas on demand). tools/call returns the payment instructions when unpaid. Drop it into Claude Desktop, Cursor, or any MCP framework and the agent can pay-to-use every tool.

What's inside (94 tools)

group examples
Research & web search, html2md, web-scrape, extract-structured, deep-search, research-brief, citations, fact-check, web-archive, openapi-fetch, graphql
Documents & media pdf-extract, ocr, md2pdf, pdf-invoice, video-download, video2mp3, image-optimize, image-compress, capture-page (full-page screenshot/PDF), screenshot-mobile, pdf-merge, pdf-compress
Speech stt / stt-fast (Whisper), tts (neural Kokoro-82M, 30+ voices, $0.004/1k chars), tts-voices
Security & recon security-headers, cors-check, cookie-flags, dns-recon, port-scan, leak-check, subdomain-find, threat-intel, site-report, file-scan, email-verify, reverse-dns, header-compare
Finance & world crypto-price, stock-quote, fx-rates, weather, geoip
Dev & data http-headers, ssl-check, exec-python, repo2context, md-compress, temp-webhook, robots, sitemap, link-health, sqlite, embed, price-estimate, dry-run, batch
AI & text ai-text, ai-rewrite, ai-summarize, translate, resume-parse, pdf-to-word, plagiarism, qr, link-preview

Pricing

From the project's README.