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?
match.interzoid.com
Interzoid Batch Match: AI-powered similarity-key matching and deduplication over a CSV/TSV file or SQL table. Priced at $0.01 per record (1 cent each), up to a maximum of 10000 records per job. Call with your file or database parameters to …
jsonrecon.com
SEO schema.org JSON-LD extraction and suggestion service for AI agents. Extracts or builds validated structured data from any URL. 200+ types (Product, LocalBusiness, Article, Event, etc). AI suggests the optimal schema type when site marku…
trader.rigoblock.com
AI-powered DeFi trading agent for Rigoblock smart vaults. Natural language to safe swap/bridge calldata or delegated execution. Supports Uniswap, 0x, GMX perpetuals, Across bridging, Uniswap v4 LP, GRG staking, and pool deployment across 7 …
deliver.hergertsynthora.com
SYNTHORA Email Deliverability Check: given a domain or email, returns SPF, DKIM (common selectors), DMARC, MX and a deliverability/spam score. DNS-only, deterministic, Ed25519-signed. 0.001 USDC via x402 on Base.
underground.substratesymposium.com
Underground Cultural District — catalog of 228 themed digital products (poetry, philosophy, fiction, reflection, plant meditations). One settle returns the full menu with every product's slug, description, price, and x402 endpoint. Each ind…
human.0000402.xyz
Pay $0.10 USDC to submit a question to a real human community (Discord & Telegram). Returns a token to poll for responses. Status becomes 'ready' once at least 1 human response(s) are collected. Max question length: 2000 characters. Poll GE…
base-intel-api.jakemaxsigal.workers.dev
Web search for AI agents: search the web for current, real-time info to answer questions, research topics, and ground LLM responses with cited sources. Returns ranked, de-duplicated results (title, URL, clean snippet, source, date, plus ext…
houjin.agentic-jp.com
Reconcile a company name (+ optional address) against the official Japanese (JP) corporate registry — the 名寄せ / KYC endpoint. Returns ranked candidate 法人番号 with a 0-1 confidence score, handling 株式会社 / (株) / ㈱ spelling variation and matching…
x402-market.kore-app.workers.dev
Aggregated crypto market snapshot: prices, Fear & Greed, DeFi TVL, dominance, top stable yields.
inference.hergertsynthora.com
SYNTHORA Inference Router: pay-per-prompt LLM inference, no API keys to manage. Sovereign constitution-tuned SYNTHORA-Qwen model, local, Ed25519-signed output. POST {"prompt":"...","system":"...","max_tokens":200}.
boofy.fun
Mint 5k $BOOFY. https://boofy.fun . Fulfilment may take a few minutes. Cap for this endpoint is 100k $USDC. No team supply. $BOOFY is a pure meme token with no utility. No refunds, liquidity will only be provided on mint out. Use at your ow…
pdufa.cryptoetfsentinel.com
Upcoming FDA PDUFA decision dates for US-listed biotechs, extracted from primary SEC 8-K/6-K filings. Date accuracy is independently backtested (median 1-day error) — verify free at GET /v1/accuracy before paying.
api.lastlookdata.com
LastLook Data — home purchase market bundle: current mortgage rate, median sale price, monthly payment estimate, income required to qualify, and affordability level. Directly answers whether a buyer can afford a median home.
timecapsule.0000402.xyz
Pay $0.05 USDC to seal up to 100 KB of text until a future date. Content is inaccessible via GET /open/{token} until unlock_at passes. An optional label is visible before unlock via GET /status/{token}. Max unlock date: 10 years from now. N…
mcp.onchaindiligence.com
Sanctions-screen an EVM wallet address against the Chainalysis on-chain oracle (OFAC, EU, UN designated addresses). Returns a clear sanctioned / not-sanctioned result. For AML compliance, counterparty due diligence, and payment screening be…
api.biotechcatalystsentinel.com
Upcoming FDA PDUFA decision dates for US-listed biotechs, extracted from primary SEC 8-K/6-K filings. Date accuracy is independently backtested (median 1-day error) — verify free at GET /v1/accuracy before paying.
gblin.digital
GBLIN Risk Attestation: a perishable (10-minute), verifiable proof of the current BTC/ETH risk regime (calm | elevated | crash) derived from the on-chain Crash Shield. Attach it to your action as proof-of-diligence; any counterparty verifie…
energybilltoolkit.co.uk
Return postcode-level schedule-option distributions and ambiguity percentages for council-native address candidates. This is a triage endpoint, not address proof and not an exact property lookup.
polymarket-signal-api.pwnker-polymarket-signals.workers.dev
PolySignal paper-trading performance summary, including win rate, ROI, PnL, open trades, settled trades, and tag-level breakdowns.
revert.wtf
Paid hosted 4-byte function/error selector resolver backed by the revert.wtf selector catalog. Send a 4-byte selector such as 0x08c379a0.
x402endpoint-utiwoa54hq-uc.a.run.app
Order an international non-reloadable prepaid card (USD). The order is queued and fulfilled by an admin, after which the card details are retrievable via GET /get-card-data with card_type="Non-Reloadable International". A 3.8% fee is added …
webhook-tester.api.klymax402.com
Send a test request to a webhook URL and analyze the response
x402rail.net
Fetches an owned, continuously-maintained niche data feed. Current feed `x402-directory`: a probed directory of known x402 services with their live reliability scores, networks, and last-probe timestamps.
book-bot.app
Fetch full metadata and a magnet download link for one audiobook on audiobookbay.lu. Returns title, author, narrators, format, length, description, info hash, tracker list, and the assembled magnet URI.
api.hyperd.ai
Mixer-adjacency risk screening. Returns 0-100 risk score + structured evidence for an EVM address's interactions with major privacy protocols (Tornado Cash, Railgun, Privacy Pools, Aztec Connect) within 2 graph hops across 7 EVM chains. Def…
x402.tabiji.ai
Generate a deterministic, source-linked travel scam brief from Tabiji's curated scam/safety corpus.
pastebin.0000402.xyz
Pay $0.02 USDC to store an encrypted secret (up to 100 KB). Encrypted with AES-256-GCM; key derived from passphrase via scrypt. The passphrase is never stored — only the ciphertext. Reveal with POST /secret/{token} and the correct passphras…
word-counter.api.klymax402.com
Count words, characters, sentences, paragraphs, and reading time
x402-scalogy-production.up.railway.app
Proprietary, daily-scored US residential real-estate deals for investors. Each on-market listing is graded (STRONG / MODERATE / FAIR) for flip, BRRRR, or buy-&-hold, with an estimated ARV from a live comp set, gross spread, margin %, cap ra…
liquidation-oracle.api.klymax402.com
Get liquidation risk levels for DeFi lending protocols
api.cryptoetfsentinel.com
Crypto ETF Sentinel — Curated directory of every active US spot crypto ETF issuer, including staking ETFs (100+ entries across 30+ cryptocurrencies). Each entry carries regulatory-stage classification (registration_filed / under_review / la…
x402-data-api.onrender.com
Enriched crypto market report for one asset: rank, multi-timeframe price changes (1h/24h/7d/30d), all-time-high context, plain-English momentum/volatility/liquidity signals, and a ready-to-use written summary. For agents needing market cont…
nostrpulse.xyz
Pre-baked snapshot of what's happening on Nostr right now: top zap-weighted notes, top long-form articles, trending hashtags, and a one-sentence DVM activity summary. Combines the signal of the $0.02 endpoints into a single human/agent-read…
boundary-guard-x402.onrender.com
Create a proof-safe lead or company brief from caller-supplied public text, URLs, and known fields; return outreach-ready facts, source pack, missing fields, and receipt evidence.
proxy.0000402.xyz
Pay $0.01 USDC to make an outbound HTTP request through the proxy. Supports all standard HTTP methods, custom headers (including auth), and JSON or raw bodies. Responses are returned as text or base64-encoded binary. Max response size 10 MB…
api.phoneagent.xyz
PhoneAgent — countries with rentable SMS phone numbers for AI agents. Returns 190+ supported countries, each with the number of services offered and the cheapest price tier ($1, $2, or $5 USDC). Add ?service=<alias> (e.g. tg, wa, go, zo for…