Cheap facts.
Paid per call.
Nock is a marketplace of pay-per-call MCP tools for AI agents. Prepaid Stripe test credits. Strict JSON. No x402. No Connect. No livemode.
MCP https://nock.tools/mcp
Catalog https://nock.tools/
Quote /quote
Webhook /webhooks/stripe
$5 credit pack
v1.0.0
| Tool | Kind | Status | Price | What you get |
|---|---|---|---|---|
quote |
free | live | $0.00 | Price list, credit pack, and payment instructions as strict JSON. |
buy_credits |
free | live | $0.00 | Create a Stripe Checkout Session for the $5 prepaid credit pack (test mode). |
credit_balance |
free | live | $0.00 | Read the prepaid credit ledger for a wallet. |
request_tool |
free | live | $0.00 | Ask Nock for a tool that is not in the catalog yet. Demand intake only; nothing is auto-built. |
inspect_domain |
paid | live | $0.03 | DNS records plus a live TLS handshake on port 443. |
email_check |
paid | live | $0.02 | Syntax, MX, and disposable-domain checks for an email address. |
company_card |
paid | live | $0.08 | Homepage card: title, description, contacts, and social hints. |
evidence_pack |
paid | live | $0.08 | Combined domain, TLS, HTTP, and company evidence as one JSON pack. |
receipt_parse |
paid | live | $0.10 | Parse receipt or invoice text into structured line items and totals. |
whois_lookup |
paid | live | $0.03 | Live RDAP/WHOIS: registrar, dates, nameservers, registrant country. |
http_probe |
paid | live | $0.02 | HTTP status, redirect chain, final URL, title, key headers, response time. |
url_unfurl |
paid | live | $0.02 | Expand shortlinks and marketing redirects. Final URL plus hop list. |
url_to_markdown |
paid | live | $0.05 | Fetch a URL and return main content as markdown. Size-capped; secrets redacted. |
ip_card |
paid | live | $0.03 | ASN, org, country, city, and reverse DNS for a public IP. |
url_risk |
paid | live | $0.06 | Compact URL due-diligence: age, parked, disposable, malware/phishing flags. |
tech_stack_hint |
paid | live | $0.06 | Heuristic tech-stack hints from HTTP headers and homepage HTML. |
sitemap_summary |
paid | live | $0.05 | Summarize robots.txt and sitemap.xml URL samples. |
ssl_history |
paid | live | $0.08 | Certificate transparency history from public crt.sh logs. |
well_known_card |
paid | live | $0.05 | robots.txt, llms.txt, security.txt, ai-plugin, and MCP well-known manifests. |
meta_card |
paid | live | $0.04 | Title, description, canonical, OG/Twitter tags, favicon, language, JSON-LD types. |
vat_check |
paid | live | $0.04 | EU VIES VAT number check: validity, company name, address. |
geocode |
paid | live | $0.03 | Forward or reverse geocode via OpenStreetMap Nominatim. |
sanctions_screen |
paid | live | $0.08 | Name/org screen against public OFAC/UN/EU sanctions lists. Not a full list dump. |
pdf_text |
paid | live | $0.08 | Extract PDF text layer, page count, and metadata from a URL. No OCR. |
github_repo_card |
paid | live | $0.03 | Public GitHub repo card: stars, forks, license, last push, default branch. |
security_headers |
paid | live | $0.03 | CSP, HSTS, XFO, referrer-policy, permissions-policy grade for one URL. |
catch_all_mx |
paid | live | $0.06 | Probe whether the domain MX accepts arbitrary local-parts. SMTP limits apply. |
youtube_transcript |
paid | live | $0.05 | Official YouTube captions only. Structured miss if none exist. |
whois_history |
paid | coming_soon | $0.12 | Historical WHOIS snapshots. Needs a paid WHOIS history API; not faked. |
Connect
{
"mcpServers": {
"nock": {
"url": "https://nock.tools/mcp"
}
}
}