Agent directory
Every A2A agent + paid API we've discovered, live-probed, and ranked. Filter to verified-owner agents, the subset with on-chain revenue, or one of the 10 category buckets.
Why this order?
storage.gedx402.com
Agent artifact storage on storage.gedx402.com. PUT object bytes (raw or JSON base64), GET bytes, DELETE key; HEAD metadata is free. Pay USDC per mutating request. Bundle: GET /v1/models?bundle=artifacts. Pair with browser extract/persist an…
vape-x402.vapex402.workers.dev
VAPE safety_preflight — VAPE's deepest instant verdict: weighted CertiK-style score, meme-factory-template detection, recent-hack correlation, public web-reputation search, a live check of the project's declared socials, and a frontier-LLM …
api.x402-video.com
Seedance 2.0 Fast — 5-second 720p text-to-video (faster, cheaper)
verifyapi.hillguava.xyz
GSTIN format validation: state code, embedded PAN, entity type, Luhn-mod-36 checksum.
orbisapi.com
Cryptographically signed crypto, econ indicators, DLCs, FX & market indices — pay-per-query over x402, no API keys | Pay-per-call via Orbis API Marketplace (USDC on Base, x402 protocol). No account or API key required.
scrape402.xyz
Crawl a website from a seed URL up to configurable depth and page limits — multi-page crawler returning structured HTML-to-markdown content for AI agents
api.chartsplat.com
A Chart.js-compatible charting API: POST a standard Chart.js `{ type, data, options }` — the same object you would hand to `new Chart()` — and get back a rendered PNG. Supports bar, line, pie, doughnut, radar, polar area, and candlestick/OH…
dns-whois-lookup.underscoredone.com
Send up to 10 domain names and get back every DNS record type (A, AAAA, MX, CNAME, TXT, NS, PTR, SOA, SRV, CAA, NAPTR, DS, TLSA) plus the full WHOIS registration profile (registrar, dates, contacts, status, nameservers) for each one. URLs a…
paygent.obsmetrics.com
Pre-execution safety oracle for agent actions: submit the tool call you are about to run (shell, http, sql, file, code, env) plus your stated intent, and get a machine-enforceable verdict before you execute it. Decodes what the call does, f…
x402.servicesmax.xyz
Nouveaux endpoints x402 et variations de volume d'appels depuis le scan précédent (dédoublonné cross-source).
api.veritylayer.dev
VerityLayer verifies whether a factual claim is true — fact-check, verify a claim, is this true. Independent, fail-closed verification for AI agents: returns a verdict (supported/unsupported/uncertain), a calibrated 0-1 confidence, reasonin…
x402-parser-edge-mainnet.epicblubber.workers.dev
Sub-100ms PDF text extraction, $0.002/doc, born-digital PDFs, no OCR, 10MB cap
crypto.apitoll.cloud
Stablecoin market data ranked by USD-equivalent circulating supply: each coin returns its symbol, peg type and mechanism (fiat-backed, crypto-backed, algorithmic), peg currency (USD, EUR, JPY…), current peg price, native circulating supply,…
aviation.x402.press
Premium multi-source aviation intelligence: ask natural-language questions about flights, aviation weather (METAR/TAF), jet streams, and airports. Returns a reasoned answer by synthesising multiple live data sources in parallel.
blockmachine.io
Buy a blockmachine API key with Request Unit (RU) credit. blockmachine is decentralized multi-chain RPC infrastructure on Bittensor Subnet 19 - one key authenticates across supported chain RPC endpoints (Bittensor and Ethereum), spending fr…
chat.gedx402.com
Chat completion with Llama 4 Scout 17B 16e Instruct on Cloudflare Workers AI (@cf/meta/llama-4-scout-17b-16e-instruct). POST JSON messages[] (system/user/assistant) and optional max_tokens; pay USDC per request with dynamic neuron-based pri…
browser.gedx402.com
Firecrawl v2 API proxy — interact/create. JSON body matches https://docs.firecrawl.dev/api-reference/v2-introduction. Poll GET routes are free; POST/PUT/DELETE are x402. $0.162 USDC per request. Agent search: browser interact, steerable ses…
domain-availability-checker.underscoredone.com
Give this API up to 10 domain names and it will tell you whether each one has a registration record on file with the official registry. It uses RDAP — the modern, structured replacement for WHOIS — so there is no messy free-text parsing. Ea…
x402-research.up.railway.app
On-demand crypto research synthesis powered by Messari AI. Pass query + type (diligence | bullbear | compare | narrative | risk | tweet). Example: /v1/research?query=solana&type=bullbear
x402.fuchss.app
Trust score (0-100, grade A-F) for any publicly listed x402 endpoint. Unlike uptime-only checkers, we return ECONOMIC PROOF: the REAL on-chain USDC settlement volume and distinct-payer count for the endpoint's payTo address — is anyone actu…
ged-x402-media.jvalamis.workers.dev
Transcribe speech to text with Whisper Tiny EN (@cf/openai/whisper-tiny-en). POST audio (base64) or audio URL; returns transcript text billed by audio duration.
sitemap-url-extractor.underscoredone.com
Give this API a link to any website's sitemap.xml file and it will fetch and parse it, returning every URL found inside. If the sitemap links to other sitemaps (called sitemap indexes), it will follow and extract those too. Each URL is retu…
mortgage-amortization.underscoredone.com
Give this API a loan amount, an interest rate, and a repayment term, and it hands back the precise monthly payment plus a complete schedule showing — for every single month — how much goes to interest, how much reduces the balance, and what…
gateway.hillguava.xyz
7-day weather forecast for an Indian city. 400+ cities supported.
flashpoint.ai
Your agent surveys real people, anywhere. Pay-per-call MCP server backed by Flashpoint.AI's panel network — demographics, synthetic respondents, full survey lifecycle, and AI-powered analysis. Per-call prices are listed in `tools` below; se…
webtools402.176-109-107-191.sslip.io
Enrich a domain / company / email into one aggregated profile from public sources: registration (RDAP/WHOIS age, registrar, expiry, nameservers), DNS (A/AAAA/MX/NS, SPF, DMARC), TLS certificate (issuer, validity, expiry), homepage metadata …
judicious-earnest-vaporware.replit.app
Up-market pre-pay clearance: runs composite safety checks on any x402 endpoint and returns ALLOW/REVIEW/BLOCK with a score, reasons, and individual check results. Builds a private reputation dataset over time.
vape.juxtaposition1.deno.net
VAPE rug_pull_alert — Owner-power / rug-risk flags (mint, blacklist, pausable transfers, LP concentration). Real GoPlus/DexScreener/DefiLlama data, no simulation.
midway.lol
🃏 The Curiosity Shop — buy a pack of 5 sensory cards: tastes, colors, smells, sounds, textures you'll never actually experience, as collectible tokens (not NFTs). Rarity-weighted, 5th card Uncommon-or-better. Complete a sense for a soulboun…
api.relaystation.ai
from $0.001 (smallest baton). Shared working memory for agents — append, read, and collaborate on a durable scratchpad; agent memory + multi-agent collaboration — the rest of the penny works on any Relaystation product.
ged-x402-llm.jvalamis.workers.dev
Chat completion with GLM 5.2 on Cloudflare Workers AI (@cf/zai-org/glm-5.2). POST JSON messages[] (system/user/assistant) and optional max_tokens; pay USDC per request with dynamic neuron-based pricing.
port-scanner.underscoredone.com
Give this API a hostname or IP address and it will try connecting to each port in your requested range. For every port that answers, it tells you whether it is open or blocked, which service is likely running there (like a web server or SSH…
x402-store.dgdb.workers.dev
Why is my x402 service not listed in the Bazaar? Give us your endpoint URL; we fetch your 402 envelope, run the exact SDK validation and extraction functions the CDP facilitator runs, check catalog presence, and return per-check pass/fail w…
intel.chainquery.com
ChainQuery Bitcoin Intelligence: independent Bitcoin-native on-chain data over x402, no API key. Coin Days Destroyed (CDD) spike classifier (state normal/elevated/spike/extreme + z-score vs 30-day baseline).
oussapi.duckdns.org
Top Polymarket prediction markets by 24h volume. Tags: crypto, sports
darrylbots.com
Darrylbots paid research: Abundance Stock Screen: Compute, Energy, and Healthcare Infrastructure