| Endpoint | Status | Price | Network | Spec | Checked |
|---|---|---|---|---|---|
| markt.halowerk.com cross-exchange
Queries Binance, Coinbase, Kraken, OKX and Bybit in parallel for one BASE/QUOTE pair, four seconds per exchange. An ex |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| markt.halowerk.com anomaly volume
Compares the volume of the most recent completed minute candle with the distribution of minute volumes over the chosen |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| kette.halowerk.com chain health
Queries every public RPC endpoint this hub knows for a chain in parallel — at least three, usually five — and reports |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| 2s.io health hospital-lookup
CMS Care Compare lookup for every CMS-certified US hospital (~5k). Lookup by 6-digit CMS Facility ID for direct match, |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| sovereign-x402-zeta.vercel.app qdrant query
Query a Qdrant collection for the nearest points to a given vector. |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| vending-machine-seven.vercel.app v ip-lookup
Live IP geolocation: country, city, org, and ASN for fraud and routing agents |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| x402.forgemesh.io qr-code
QR code generator: turn any text or URL (up to 2000 characters) into a scannable PNG QR code, generated on our own har |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| 2s.io iso currency
Look up an ISO 4217 currency. Pass code (alphabetic like USD, or 3-digit numeric like 840) for the canonical record, o |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| agent-treats-production.up.railway.app api palette
Curated named color palette with hex codes, mood, and CSS variables. |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| Vending Machine balance
Returns Base mainnet ETH and USDC balances for an address. |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| vending-machine-seven.vercel.app v redirect-trace
Follow a public redirect chain with per-hop HTTP status (SSRF-safe) for security agents |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| 2s.io weather air-quality
Current air quality for any coordinate worldwide. Pass lat + lon. Returns the US AQI (+ category Good/Moderate/Unhealt |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| 2s.io word define
English dictionary lookup via dictionaryapi.dev (Wiktionary-sourced). Returns full entries with IPA phonetic transcrip |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| agent-treats-production.up.railway.app api name
Creative name generator. Categories: fantasy, startup, pet, band. |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| sovereign-x402-zeta.vercel.app pinecone query
Query a Pinecone index for the nearest vectors to a given vector. |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| 2s.io fx rates
Daily reference exchange rates from the European Central Bank (via Frankfurter). 30+ major currencies. Pass base = 3-l |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| 2s.io business lei
Look up or search the global LEI (Legal Entity Identifier) registry — the authoritative ISO 17442 directory of ~2.6M l |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| 2s.io inflation calculator
Adjust a US dollar amount for inflation between two dates ('what is $100 in 1990 worth today?'). Pass amount, from (YY |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| banking-compliance-production.up.railway.app api lookup
Search the federal banking compliance rules database. 56 rules across Reg DD, Reg Z, UDAAP, ECOA, BSA/AML, and more. |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| OpenWebNinja events
Searches realtime event listings. |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| x402.openwebninja.com realtime-amazon-data search
https://x402.openwebninja.com/realtime-amazon-data/search |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| x402.openwebninja.com local-business-data search
https://x402.openwebninja.com/realtime-local-and-maps-data/local-business-data/search |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| x402.openwebninja.com local-business-data reverse-geocoding
https://x402.openwebninja.com/realtime-local-and-maps-data/local-business-data/reverse-geocoding |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| x402.openwebninja.com realtime-finance-data stock-quote
https://x402.openwebninja.com/realtime-finance-data/stock-quote |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| x402.openwebninja.com zillow search
https://x402.openwebninja.com/realtime-real-estate-data/zillow/search |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| x402.openwebninja.com local-rank-tracker ranking-at-coordinate
https://x402.openwebninja.com/realtime-local-and-maps-data/local-rank-tracker/ranking-at-coordinate |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| paket.halowerk.com v1 package-versions
Returns the full version history of a package from a single normalised schema that covers seven ecosystems. Versions a |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| x402.openwebninja.com email-search search-emails
https://x402.openwebninja.com/email-search/search-emails |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| tariffmonkee.com paid email-verify
Email address -> deliverability verdict. Checks syntax, MX record presence, disposable/temp-mail domain match, and SPF |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| stockwaves.net macro indicator
One macro datapoint, cheap: value + prior + delta + date for a single indicator, for agents that want a number rather |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| x402engine.app crypto history
Historical price, market cap, and volume data for any coin |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| solar.halowerk.com victron-log-parse
Reads the key-tab-value lines of the VE.Direct text protocol, applies the unit scaling that belongs to each key, and d |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| nostr.halowerk.com relay-health
Every relay is measured twice over. Over WebSocket a genuine REQ query is sent and the connection time, the time to en |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| netz.halowerk.com v1 rpki-validity
Validates the pair of prefix and origin AS against the RPKI repository and returns the verdict together with every ROA |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| paket.halowerk.com v1 artifact-hash
Takes a file digest and answers which released package version it is. Useful for an artefact found in a container laye |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| paket.halowerk.com v1 lifecycle-check
Answers the question an agent actually has about a product cycle: for the version in use, is support over, how many da |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| paket.halowerk.com v1 package-freshness
Turns the release history of a package into a maintenance signal an agent can act on. Four measurements go in: the age |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| x402.openwebninja.com realtime-web-search search-full
https://x402.openwebninja.com/realtime-web-search/search-full |
answers 402 | $0.003 | base | v2 GET | 22d ago |
| zoll.halowerk.com v1 dual-use
Matches declared classification tokens against a supplied published dual-use control list. Missing facts are returned |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| zoll.halowerk.com v1 origin-rules
Checks supplied preference-origin criteria and reports the applied threshold. Missing facts are returned as null and n |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| geo.halowerk.com v1 crs-transform
Transforms coordinates between EPSG:4326 and EPSG:3857 with declared formulas. Missing facts are returned as null and |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| klima.halowerk.com v1 emission-factor
Selects a published emissions factor by activity, region and source edition. Missing facts are returned as null and na |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| dep.halowerk.com v1 package-meta
Retrieves current package metadata from npm, PyPI, crates.io or Maven Central. Missing facts are returned as null and |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| fracht.halowerk.com v1 locode-resolve
Resolves a UN/LOCODE against a supplied official code-list record. Missing facts are returned as null and named in una |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| zoll.halowerk.com v1 duty-rate
Evaluates a published TARIC duty measure for a commodity code and origin. Missing facts are returned as null and named |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| password-strength.api.klymax402.com api check
Check password strength with entropy and crack time |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| json-validator.api.klymax402.com api validate
Validate JSON and optionally check against a JSON Schema |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| aialign.halowerk.com v1 confidence-calib
Compares scalar confidence with binary correctness, calculates mean squared Brier loss, partitions confidence into cal |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| aialign.halowerk.com v1 memory-sanitize
Replaces private-key blocks, credential assignments, email addresses, Luhn-valid payment-card candidates, IPv4 address |
answers 402 | $0.003 | base | v2 POST | 22d ago |
| aialign.halowerk.com v1 capability-eval
Computes weighted pass rates and weighted scores from caller-labeled test outcomes, with deterministic category summar |
answers 402 | $0.003 | base | v2 POST | 22d ago |