api.xynaptic.io
Polygon · payout 0x3e39934989d579f5821eed7ba6a84b72f682f2c6
Answers HTTP 402
1 of 1 probed endpoints answered HTTP 402 with a parseable payment payload
checked 2026-09-24
Method: one unpaid request per listed endpoint. A 402 with a payment payload a client could parse counts. Nothing is paid.
x402-style payments, last 7 days (Base)
unknown. not measured on this chain yet
no reading date
Method: counted when the transaction carries a signed USDC authorization (EIP-3009), the settlement x402's exact scheme uses. Some non-x402 gasless sends use it too.
Delivery is not measured. We never send a payment, so we never observe what a paid call returns. Unknown means we hold no reading, not that anything failed.
Chains · one payout address, each chain read on its own
| Chain | Payout address | Listings | Answers 402 | x402-style payments |
|---|---|---|---|---|
| Polygon | 0x3e39934989d579f5821eed7ba6a84b72f682f2c6 | 148 | 1 of 1 probed endpoints answered HTTP 402 with a parseable payment payload 2026-09-24 | unknown. not measured on this chain yet |
- Hosts
- api.xynaptic.io
- Listings
- 148 registered in the x402 catalogue
- Price range
- unknown. Prices are decoded only for USDC on Base and Solana.
- Categories (auto)
- Market data (42), Other (24), Search (14), Commerce (13), Identity (13), Security (13), Web data (13), Onchain data (9), Inference (4), Developer tools (3)
- First seen
- 2026-10-05 · last seen 2026-10-05
Claim this merchant
Sign a message from the payout address 0x3e3993…82f2c6 to claim this page. Claiming proves control of the payout key. It says nothing about the service behind the address, and it does not change how this merchant is ranked. No email, no account: the signature is the whole credential, and signing a message costs no gas and moves nothing.
The payment ledger covers Base only for now, so it is not offered for Polygon.
Registrations · 148
| Endpoint | Chain | Category | Price | Catalogue date |
|---|---|---|---|---|
https://api.xynaptic.io/v1/ai-bank Xynaptic AI Bank — the banking/card vertical agent: bring a question + IBAN/BIC/BIN/name, we run the official validation tools (IBAN structure check, BIC lookup, BIN card identification, sanctions screening) and deliver… | Polygon | Security | unknown | 2026-09-27 |
https://api.xynaptic.io/v1/ai-energy Xynaptic AI Energy — the energy vertical agent: live spot prices, industrial energy costs + an LLM synthesis. POST { question, region? }. Real-time. | Polygon | Inference | unknown | 2026-09-27 |
https://api.xynaptic.io/v1/ai-health Xynaptic AI Health — the health vertical agent: official drug labels (openFDA), live health press + an LLM synthesis. POST { question, drug? }. Informational only — not medical advice. | Polygon | Inference | unknown | 2026-09-27 |
https://api.xynaptic.io/v1/ai-industry Xynaptic AI Industry — the industry vertical agent: live commodities, industrial market profile, supplier risk + an LLM synthesis. POST { question, sector?, siren? }. Real-time. | Polygon | Inference | unknown | 2026-09-27 |
https://api.xynaptic.io/v1/ai-insurance Xynaptic AI Insurance — the insurance vertical agent: coverage families, ORIAS broker registry, premium decomposition + an LLM synthesis of your question. POST { question, type?, broker_name?, orias? }. Legal informatio… | Polygon | Inference | unknown | 2026-09-27 |
https://api.xynaptic.io/v1/airport-situation Xynaptic Airport Situation — real-time weather and operating conditions of any airport by ICAO code (METAR + TAF): wind, visibility, ceiling, temperature, forecast trends, and an agent-ready assessment. On-demand, param… | Polygon | Commerce | unknown | 2026-10-04 |
https://api.xynaptic.io/v1/ao Xynaptic AO Digest — filtered French public procurement calls (trade + department, France). | Polygon | Other | unknown | 2026-09-25 |
https://api.xynaptic.io/v1/artisan-carreleur Xynaptic Carreleur Search — find carreleurs in any French department: official companies registry (active businesses only). GET ?dept=69 (&city= optional). Returns name, city, SIREN. Official French open data. | Polygon | Search | unknown | 2026-09-28 |
https://api.xynaptic.io/v1/artisan-chauffagiste Xynaptic Chauffagiste Search — find chauffagistes in any French department: official companies registry (active businesses only). GET ?dept=69 (&city= optional). Returns name, city, SIREN. Official French open data. | Polygon | Search | unknown | 2026-09-28 |
https://api.xynaptic.io/v1/artisan-couvreur Xynaptic Couvreur Search — find couvreurs in any French department: official companies registry (active businesses only). GET ?dept=69 (&city= optional). Returns name, city, SIREN. Official French open data. | Polygon | Search | unknown | 2026-09-28 |
https://api.xynaptic.io/v1/artisan-electricien Xynaptic Electricien Search — find electriciens in any French department: official companies registry (active businesses only). GET ?dept=69 (&city= optional). Returns name, city, SIREN. Official French open data. | Polygon | Search | unknown | 2026-10-04 |
https://api.xynaptic.io/v1/artisan-jardinier Xynaptic Paysagiste jardinier Search — find paysagiste jardiniers in any French department: official companies registry (active businesses only). GET ?dept=69 (&city= optional). Returns name, city, SIREN. Official Frenc… | Polygon | Search | unknown | 2026-09-28 |
https://api.xynaptic.io/v1/artisan-macon Xynaptic Macon Search — find macons in any French department: official companies registry (active businesses only). GET ?dept=69 (&city= optional). Returns name, city, SIREN. Official French open data. | Polygon | Search | unknown | 2026-09-28 |
https://api.xynaptic.io/v1/artisan-menuisier Xynaptic Menuisier Search — find menuisiers in any French department: official companies registry (active businesses only). GET ?dept=69 (&city= optional). Returns name, city, SIREN. Official French open data. | Polygon | Search | unknown | 2026-09-28 |
https://api.xynaptic.io/v1/artisan-peintre Xynaptic Peintre en batiment Search — find peintre en batiments in any French department: official companies registry (active businesses only). GET ?dept=69 (&city= optional). Returns name, city, SIREN. Official French … | Polygon | Search | unknown | 2026-09-28 |
https://api.xynaptic.io/v1/artisan-plombier Xynaptic Plombier Search — find plombiers in any French department: official companies registry (active businesses only). GET ?dept=69 (&city= optional). Returns name, city, SIREN. Official French open data. | Polygon | Search | unknown | 2026-09-28 |
https://api.xynaptic.io/v1/artisan-serrurier Xynaptic Serrurier Search — find serruriers in any French department: official companies registry (active businesses only). GET ?dept=69 (&city= optional). Returns name, city, SIREN. Official French open data. | Polygon | Search | unknown | 2026-09-28 |
https://api.xynaptic.io/v1/aviation-news Xynaptic Aviation News v2 — structured aviation events (airlines, airports, airspace, regulation, incidents, last 12h): importance, lifecycle, entities, sectors, multi-source verification, agent-ready actions. Refreshed… | Polygon | Commerce | unknown | 2026-09-23 |
https://api.xynaptic.io/v1/battery-arbitrage Xynaptic Battery Arbitrage — when to charge and when to discharge a battery/home storage in the next 24h: buy window (lowest prices), sell window (highest), expected spread. The storage owner decision product. | Polygon | Market data | unknown | 2026-09-24 |
https://api.xynaptic.io/v1/battery-metals-brief Xynaptic Battery Metals Brief — the EV-transition metals reading in one call: lithium, copper, platinum, palladium prices with daily moves, plus aluminum and silver — the battery and catalyst chain — and a composite ten… | Polygon | Market data | unknown | 2026-10-04 |
https://api.xynaptic.io/v1/car-dealer-check Xynaptic Car Dealer Check — screen a used-car seller (French dealer or individual) before you buy: official registry identity (company, SIREN), compliance screening (status, VAT, risk keywords), plus press coverage. Buy… | Polygon | Security | unknown | 2026-10-04 |
https://api.xynaptic.io/v1/commodity-price Xynaptic Commodity Price — live commodity prices: Brent, WTI, natural gas, copper, aluminum, gold, coal, wheat and 20+ more, with daily change. GET ?asset=copper (or ?assets=copper,gold). Live futures data. | Polygon | Market data | unknown | 2026-09-26 |
https://api.xynaptic.io/v1/company-brief-live Xynaptic Company Brief Live — the real-time decisional brief: identity, officers, accounts, risk signals, growth signals, agent priority with recommended actions. The daily read on any French company. Parameter: ?siren=. | Polygon | Identity | unknown | 2026-09-25 |
https://api.xynaptic.io/v1/company-changes Xynaptic Company Changes — what recently changed in a French company: officers, status, HQ, activity, accounts — detected against the last snapshot (shared with company-monitor). Parameter: ?siren=. | Polygon | Identity | unknown | 2026-09-25 |
https://api.xynaptic.io/v1/company-compare Xynaptic Company Compare — two French companies side by side: size, activity, financials, geography, officers, risk signals, differences. The due-diligence A/B. Parameters: ?siren=A&siren=B. | Polygon | Market data | unknown | 2026-09-25 |
https://api.xynaptic.io/v1/company-financial Xynaptic Company Financial — annual accounts from the registry: revenue, net income, per year available. Parameter: ?siren=. | Polygon | Identity | unknown | 2026-09-25 |
https://api.xynaptic.io/v1/company-international-profile Xynaptic International Company Profile — full global identity by LEI: legal name, legal address, country, legal jurisdiction, legal form, registration authority + LEI status (ISSUED/LAPSED/RETIRED) with dates. GET ?lei=… | Polygon | Identity | unknown | 2026-09-30 |
https://api.xynaptic.io/v1/company-international-search Xynaptic International Company Search — worldwide company search by name (GLEIF LEI registry, 200+ jurisdictions: EU, US, UK, Asia, Canada, Australia...). Returns legal name, LEI, status, headquarters, jurisdiction for … | Polygon | Search | unknown | 2026-09-28 |
https://api.xynaptic.io/v1/company-kyb Xynaptic Company KYB — the full due-diligence dossier in one call: identity, officers, financials, risk signals, VAT compliance, verification sources, agent verdict with confidence. The premium synthesis of the company … | Polygon | Identity | unknown | 2026-09-25 |
https://api.xynaptic.io/v1/company-monitor Xynaptic Company Monitor — watch a French company over time: first call sets the baseline, next calls detect what changed (officers, status, HQ, activity, establishments, accounts). Parameters: ?siren=. | Polygon | Developer tools | unknown | 2026-09-25 |
https://api.xynaptic.io/v1/company-network Xynaptic Company Network — HQ and establishment footprint: locations, activities, open/closed count. Parameter: ?siren=. | Polygon | Identity | unknown | 2026-09-25 |
https://api.xynaptic.io/v1/company-news Xynaptic Company News — the press radar for due diligence: bring a company name or French SIREN, get its latest news from a live web search (title, URL, snippet, source domain), optionally LLM-summarized. Closes the KYB… | Polygon | Identity | unknown | 2026-09-26 |
https://api.xynaptic.io/v1/company-people Xynaptic Company People — officers and directors from the RNE: names, roles, birth year. Parameter: ?siren=. | Polygon | Identity | unknown | 2026-09-25 |
https://api.xynaptic.io/v1/company-profile Xynaptic Company Profile — consolidated identity from the French state registry: SIREN, legal form, NAF, headcount, HQ, VAT, creation, status. Parameter: ?siren=. | Polygon | Other | unknown | 2026-09-25 |
https://api.xynaptic.io/v1/company-relationship Xynaptic Company Relationship — the link between two French companies: shared officers, same activity, same city, size comparison. Parameters: ?siren=A&siren=B. | Polygon | Identity | unknown | 2026-09-25 |
https://api.xynaptic.io/v1/company-search Xynaptic Company Search — find French companies by name or SIREN: identity, activity, status. The entry point to the company funnel. Parameter: ?q=name. | Polygon | Identity | unknown | 2026-09-25 |
https://api.xynaptic.io/v1/connection-risk Xynaptic Connection Risk FR — will you make your connection? Given a transfer station and planned margin (?at=Lyon Part-Dieu&minutes=15), scores the risk of missing it: active disruptions, historical reliability, recomm… | Polygon | Security | unknown | 2026-09-23 |
https://api.xynaptic.io/v1/crypto-brief Xynaptic Crypto Brief — daily crypto market digest (BTC, ETH, SOL, ADA prices, 24h moves, major headlines) as structured JSON. Refreshed every morning. | Polygon | Market data | unknown | 2026-09-23 |
https://api.xynaptic.io/v1/crypto-brief-live Xynaptic Crypto Live — real-time crypto prices (BTC, ETH, SOL, ADA + top coins) fetched at the exact moment of your request. Live data, not a cached digest. | Polygon | Market data | unknown | 2026-09-28 |
https://api.xynaptic.io/v1/crypto-correlation Xynaptic Crypto Correlation — Pearson correlation matrix of daily returns for 2-5 coins over 90 days: the honest diversification check. GET ?coins=bitcoin,ethereum,solana. | Polygon | Market data | unknown | 2026-09-26 |
https://api.xynaptic.io/v1/crypto-deep-trading-analysis Xynaptic Deep Trading Analysis — the premium multi-dimensional read: multi-timeframes (1h/4h/1d aligned), volatility regime, onchain signals, news sentiment, composite conviction score bull/bear/neutral with confidence.… | Polygon | Market data | unknown | 2026-09-24 |
https://api.xynaptic.io/v1/crypto-defi Xynaptic Crypto DeFi — protocol health in one call: current TVL, 24h change, chain breakdown, category. Parameter: ?protocol=aave. DefiLlama data. | Polygon | Onchain data | unknown | 2026-09-24 |
https://api.xynaptic.io/v1/crypto-derivatives Xynaptic Crypto Derivatives — perp market vitals: funding rate (hourly + annualized), open interest in USD, futures basis (mark vs oracle), max leverage. Parameter: ?asset=BTC. Hyperliquid perp data. | Polygon | Market data | unknown | 2026-09-24 |
https://api.xynaptic.io/v1/crypto-fear-greed Xynaptic Crypto Fear & Greed — the market sentiment thermometer (alternative.me index, 0-100): current value, yesterday, last week, classification (extreme fear..extreme greed) + interpretation hint for agents. GET no p… | Polygon | Market data | unknown | 2026-09-28 |
https://api.xynaptic.io/v1/crypto-gas-fees Xynaptic Gas Fees — live gas prices across chains (Ethereum, Base) with slow/average/fast tiers in Gwei + estimated transfer cost. GET no params. Plan your on-chain transaction timing. | Polygon | Onchain data | unknown | 2026-09-26 |
https://api.xynaptic.io/v1/crypto-global Xynaptic Crypto Global — global crypto market snapshot (CoinMarketCap Pro): total market cap, BTC/ETH dominance, 24h volume, market trend assessment. GET (no params). | Polygon | Market data | unknown | 2026-10-01 |
https://api.xynaptic.io/v1/crypto-historical Xynaptic Crypto Historical — OHLCV history for backtests: 30, 90 or 365 days, daily candles from CoinGecko. GET ?coin=bitcoin&days=365. Returns timestamped [open, high, low, close] arrays. | Polygon | Market data | unknown | 2026-09-26 |
https://api.xynaptic.io/v1/crypto-market Xynaptic Crypto Market — real-time market regime analysis: top 100 assets by market cap, gainers/losers, breadth, volatility, sentiment and regime (risk-on/risk-off). USD only, agent-ready. | Polygon | Market data | unknown | 2026-09-23 |
https://api.xynaptic.io/v1/crypto-movers Xynaptic Crypto Movers — top gainers and losers 24h with volume filter (CoinMarketCap Pro): clean lists of real movers, not low-liquidity scams, with prices and % changes. GET (?limit=5). | Polygon | Market data | unknown | 2026-10-01 |
https://api.xynaptic.io/v1/crypto-news Xynaptic Crypto News — top crypto headlines (BTC, ETH, regulation, macro) with importance scoring, timestamp and source. Refreshed every 2 hours. | Polygon | Web data | unknown | 2026-09-23 |
Descriptions are the seller’s own words from the catalogue and are not checked by us. A listed price is a registration, not an observed charge.
Data CC-BY-4.0, attribution: data by satohub.ai. Collector run 2026-10-05. Appearing here is not an endorsement. Check an endpoint with the doctor.