MARKET MONITOR / CATALOGUE Services 122,057 MCP listed 40,104 x402 82,016 Rails Base / Solana / Polygon / Arbitrum Imported 2026-10-27 · 3 sources
Task

Qa

15 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.

Stack Overflow Q&A Search x402 REST usage

Stack Overflow Q&A. Programming question and answer search with scores, accepted-answer flags, tags, and answer bodies via the Stack Exchange API.

api.kadec0.xyz Search & Research 20 calls / 30d checked 2026-10-27
0.01 USDC per call per call

Answer x402 REST usage

Ask a question about any public PDF and get a cited answer - pass a PDF URL and a plain-language question; returns the answer, confidence, verbatim supporting quotes with page numbers, or not_found. PDF question answerin...

clinkagent.com Productivity & Docs 3 calls / 30d checked 2026-10-27
0.05 USDC per call per call

x402ai x402 REST usage

Convert text into a 768-dimension embedding vector (nomic-embed-text) for semantic search, RAG retrieval, clustering, deduplication or similarity scoring. POST JSON {"input": string}, up to 3000 characters; returns {embe...

api.x402ai.dev Search & Research 14 calls / 30d checked 2026-10-27
0.01 USDC per call per call

Answer x402 REST usage

Ask a question about any public PDF and get a cited answer - pass a PDF URL and a plain-language question; returns the answer, confidence, verbatim supporting quotes with page numbers, or not_found. PDF question answerin...

clink-lithium-vault.fly.dev Productivity & Docs 2 calls / 30d checked 2026-10-27
0.05 USDC per call per call

Document Consistency Check x402 REST usage

Document Consistency Check: Find Contradictions — Reads one pasted document, such as a report, proposal, article, contract draft or spec, and lists every place where it contradicts itself, as strict JSON with both confli...

api.aiskills402.com Productivity & Docs 2 calls / 30d checked 2026-10-27
0.05 USDC per call per call

Playwright Test from Manual x402 REST usage

Playwright Test from Manual Steps — Turns manual test steps plus the page facts you have (route, labels, button names, messages) into one Playwright Test file in TypeScript that can really fail. Elements are found by rol...

api.aiskills402.com Web & Scraping 2 calls / 30d checked 2026-10-27
0.02 USDC per call per call

Nero Labs Agent Tools x402 REST usage

Scores up to 20 product ideas or keywords against live demand: how many tools on the Apify Store already do it, monthly users of the top tools, the leader and its failure rate, tools that gained most users this month, x4...

x402-agent-tools.nerolabs.workers.dev Crypto & Payments 1 calls / 30d checked 2026-10-27
0.04 USDC per call per call

Textokit x402 REST usage

Argentina official gazette (Boletin Oficial) keyword search returning literal excerpts of matching notices with dates and source URLs; an optional date limits the search to that day's notices. Use this when an agent need...

tienda.textokit.store Search & Research 7 calls / 30d checked 2026-10-27
0.005 USDC per call per call

Web Search Answer + Citations x402 REST usage

Answer a question from the live web with citations, no LLM so nothing is hallucinated: Google's featured snippet / knowledge panel when there is one, plus the best-matching quoted passages from the top pages read in full...

agent-search.centorprat.workers.dev Search & Research 3 calls / 30d checked 2026-10-27
0.01 USDC per call per call

Broken link checker | Vextorium x402 REST usage

Check whether a list of URLs, or every link on a page, works: HTTP status, final URL after redirects and broken links first. Up to 50 URLs per call, checked in parallel.

api.vextorium.com Business & Growth 4 calls / 30d checked 2026-10-27
0.005 USDC per call per call

Validate JSON against a schema x402 REST usage

Validate JSON data against a JSON Schema (drafts 4 to 2020-12, with format checks): valid flag and every error with its exact path and failing rule. Check API responses or LLM structured output.

api.vextorium.com AI Models & Inference 4 calls / 30d checked 2026-10-27
0.003 USDC per call per call

Keystone Opportunity API x402 REST usage

Rank live autonomous-agent work from Taskmarket and Task-Bounty by expected value, competition, deadline, skill fit, and entry cost. Call before picking which task to attempt.

keystone-opportunity-api.keystone-opportunity.workers.dev Productivity & Docs 3 calls / 30d checked 2026-10-27
0.002 USDC per call per call

Qa watchdog x402 REST

Off-network HTTP/2 + TLS 1.3 QA Watchdog verification sweep checking root HTML 200 OK, critical CSS/JS bundles, /llms.txt, /robots.txt, /sitemap.xml & TTFB with Ed25519 receipt ($0.10 USDC).

winwinhost.com Infrastructure checked 2026-10-27
0.1 USDC per call per call

page-links-status x402 REST

Status of the first 20 links on a page: each link's anchor text, final status code and whether it redirected, with ok/broken/redirected totals. Quick outbound-link health for editors and QA. $0.01 per page.

intel.rallylive.ca Dev & Code checked 2026-10-27
0.01 USDC per call per call

broken-link-check x402 REST

Broken link check: extracts the links on a page and HEAD-requests up to 30 of them (external first), reporting status per link and the list of broken (4xx/5xx/unreachable) ones. Content QA without a crawler. $0.01 per pa...

intel.rallylive.ca Web & Scraping checked 2026-10-27
0.01 USDC per call per call

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