MARKET MONITOR / CATALOGUE Services 139,336 MCP listed 41,911 x402 97,532 Rails Base / Solana / Polygon / Arbitrum Imported 2026-11-03 · 3 sources
Task

Discovery

92 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.

Site map (URL discovery) x402 REST usage

Discover a website's URLs in one call: reads robots.txt, its declared sitemap(s) (sitemap indexes and gzipped sitemaps included, /sitemap.xml as the fallback) and the start page's internal links, then returns a same-host...

agent402.tools Geo & Maps 10 calls / 30d checked 2026-11-03
0.005 USDC per call per call

Quartermaster x402 Bazaar Scout x402 REST usage

Bazaar Scout: searches the Coinbase Bazaar for a capability, live-probes the top candidates (still returning HTTP 402? how fast?), and returns a ranked shortlist with a best-value pick — a vetted result set, not a raw li...

quartermaster.surewhynot.app Crypto & Payments 1 calls / 30d checked 2026-11-03
0.05 USDC per call per call

Agent Trust Layer x402 REST usage

Probe an agent-payable HTTP endpoint for current availability, latency, HTTP status, x402 challenge support, and response-schema validity.

agent-trust-layer.agent-trust-layer.workers.dev Crypto & Payments 5 calls / 30d checked 2026-11-03
0.01 USDC per call per call

x402 Market Intelligence x402 REST usage

Is an x402 service's traffic organic? Checks a host's reported volume for shared payouts, twin metrics and one-buyer farms.

x402-meta.x402tookit.com Crypto & Payments 2 calls / 30d checked 2026-11-03
0.02 USDC per call per call

NASA Exoplanets x402 REST usage

Transit depth (Rp/Rs squared) in percent and ppm from planet and star radius, plus duration if period and star mass are given.

exoplanets-nasa.x402tookit.com Other services 2 calls / 30d checked 2026-11-03
0.02 USDC per call per call

Saylor Innovations Guide Library x402 REST usage

CUDA, driver and Ollama compatibility - GPU support, model memory fit and proof inference uses the GPU

saylorinnovations.com AI Models & Inference 4 calls / 30d checked 2026-11-03
0.01 USDC per call per call

x4o2 FOMO Data x402 REST usage

FOMO's best traders for the period (24h, 7d, 30d or all time), best first. Each entry is the trader's profile (handle, user id, Solana and EVM wallets, picture, follower and trade counts, top holdings) plus rank and pnl...

fomo.x4o2.com Crypto & Payments 35 calls / 30d checked 2026-11-03
0.001 USDC per call per call

Settled x402 REST usage

Price: $0.002 in USDC on Base. Signed check of an x402 endpoint before you pay it: who really pays it on Base (settlements and unique payers over 30 days), a fresh unpaid probe (cached ≤5 min) with status, latency and th...

settled.tools Crypto & Payments 17 calls / 30d checked 2026-11-03
0.002 USDC per call per call

P0 x402 Market Index x402 REST usage

Use when an agent needs the top x402 services tagged 'onchain'. Returns Highest-demand x402 services tagged 'onchain': ranked by 30-day unique paying wallets, with calls, price, network and calls-per-payer for each. 165...

x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev Crypto & Payments 1 calls / 30d checked 2026-11-03
0.032 USDC per call per call

RSS and Atom Feed Reader x402 REST usage

Fetch a podcast RSS feed and list episodes: title, date, duration, enclosure, season and episode numbers, explicit flag.

feed-reader.x402tookit.com Media & Creative 1 calls / 30d checked 2026-11-03
0.03 USDC per call per call

Saylor Agent Tools x402 REST usage

TLS certificate check for a domain - issuer, subject, validity window, days remaining and fingerprint

saylorinnovations.com Web & Scraping 3 calls / 30d checked 2026-11-03
0.01 USDC per call per call

Quartermaster x402 Audit x402 REST usage

Full x402 endpoint audit: verifies the 402 challenge, payment fields, Bazaar discovery metadata, and the origin's discovery surfaces (llms.txt, openapi.json, .well-known/x402, discovery/resources), returning a 0-100 scor...

quartermaster.surewhynot.app Crypto & Payments 3 calls / 30d checked 2026-11-03
0.01 USDC per call per call

Cyre x402 REST usage

Cyre Pay-route Oracle — before your agent pays any external x402 resource, grade payTo + amount/URL + facilitator/offer pin hygiene in one call. Patterns, not verdicts. Agent guide: https://cyre.dev/SKILL.md

cyre.dev Crypto & Payments 14 calls / 30d checked 2026-11-03
0.002 USDC per call per call

Open Search x402 REST usage

Search scholarly works via Crossref: title, DOI link, year, venue, type and citation count for the best matches.

open-search.x402tookit.com Search & Research 1 calls / 30d checked 2026-11-03
0.02 USDC per call per call

x402index x402 REST usage

x402 market intelligence over 41k live listings. Free /search, /market, /compare, /gaps, /guide. Paid /verdict ($0.01): vet one endpoint, or send {"resources":[...]} to batch-vet up to 25 worst-first with live diagnosis,...

api.firstmention.uk Crypto & Payments 2 calls / 30d checked 2026-11-03
0.01 USDC per call per call

Peyon ERC-8004 agent lookup x402 REST usage

Reads any ERC-8004 agent on the Ethereum identity registry: its registration file, services and whether each endpoint answers, declared trust models, payment wallet set or not, and its ERC-8217 NFT binding. Reports what...

peyon.ai Crypto & Payments 1 calls / 30d checked 2026-11-03
0.02 USDC per call per call

x402 Market Data x402 REST usage

Which paid API should an agent call for a task? Search the x402 market by keyword or category and get offers ranked by real repeat usage (payers, calls per payer, last payment, price) from a daily survey of the Coinbase...

x402op-edge-39830b.fly.dev Crypto & Payments 4 calls / 30d checked 2026-10-31
0.005 USDC per call per call

x402 Listing Quality Scanner x402 REST usage

Heuristic calls-vs-unique-payers pattern score for the top x402 resources in the CDP Bazaar and PayAI catalogs: per resource price_usdc, unique_payers, calls, wash_risk (low/medium/high) and a reason. No input. A heurist...

x402-niche-briefs.fly.dev Crypto & Payments 2 calls / 30d checked 2026-11-03
0.01 USDC per call per call

Inspect a remote MCP server x402 REST usage

Connect to a remote MCP server (Streamable HTTP) as a client and return its name, version, instructions, capabilities and tool list with descriptions and parameters, without calling any tool. Know what an MCP server offe...

api.vextorium.com Infrastructure 4 calls / 30d checked 2026-10-28
0.005 USDC per call per call

agent-verification-listing x402 REST usage

Buy a 30-day verified agent listing for $0.01 USDC. AgentIndex audits reachability, x402 compatibility and discovery manifests, then publishes a machine-readable registry entry and score badge for buyer trust and SEO.

x402.agentindex.world Crypto & Payments 2 calls / 30d checked 2026-11-03
0.01 USDC per call per call

x402 Trust Scan x402 REST usage

Pre-payment trust check of any x402 endpoint, so an agent can filter malformed or unknown (honeypot) endpoints before spending. Reads the target's own 402 terms (reachability, HTTPS, well-formed x402 v2, Bazaar discovery...

gdzlcxskuhupymyxywzm.supabase.co Crypto & Payments 1 calls / 30d checked 2026-11-03
0.02 USDC per call per call

Crypto trending x402 REST usage

Trending coins in the last 24 hours, ranked by user search activity on the market-data site (currently ~15 results). Includes coin id, symbol, market cap rank, current price (BTC-denominated), and score. Useful signal fo...

agent402.tools Data & Finance 19 calls / 30d checked 2026-11-03
0.001 USDC per call per call

AllTheBot Which x402 API should x402 REST usage

Which x402 API should I call? Describe your need in plain words (weather forecast, token price, web search, translate...) and get the best paid endpoints to call: URL, method, price, measured uptime (7/30 days), latency,...

api.zkrobotics.fr Crypto & Payments 2 calls / 30d checked 2026-11-03
0.008 USDC per call per call

Sitemap URL extractor x402 REST usage

List the URLs of a site's XML sitemap (found via robots.txt if needed, following sitemap indexes and .gz files) with last-modified dates, optionally filtered by text. Discover a site's pages for crawling or monitoring.

api.vextorium.com Geo & Maps 4 calls / 30d checked 2026-11-03
0.004 USDC per call per call

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