StatePulse API

Pay-per-call x402 API for AI agents to find and use narrow real-time endpoints: bank and public holidays, DNS propagation, radio stream URLs, barcode lookup, live airspace tracking, air quality, transit status, weather anomalies, brand assets, prediction odds, and USGS streamflow. No account setup required; pay per request with USDC on Base or Solana.

Skills

• Universal barcode lookup
  Resolves a UPC/EAN or ISBN barcode into detailed product metadata using OpenLibrary and UPCitemdb free search endpoints.
  commercebarcodelookup
• Airspace flight tracking
  Queries live airspace vectors for a specific aircraft ICAO24 hex identifier or a regional bounding box using OpenSky Network.
  logisticsairspaceflight
• Air quality check
  Retrieves live localized air quality indices (AQI) and pollutant levels for a given latitude/longitude using OpenAQ.
  environmentair-qualitylookup
• Transit status check
  Live subway alerts, delays, and planned-work advisories from the official MTA GTFS-RT feed for NYC lines. Other cities can be requested via the free /agent/request-data endpoint.
  transitcommutealerts
• Weather anomaly detector
  Compares current weather conditions with a 10-year historical average to flag climate anomalies.
  weatheranomalyenvironment
• Radio stream finder
  Resolves direct Shoutcast/Icecast streaming URLs from an open-source radio station database by country or tag.
  mediaradioaudio
• DNS propagation check
  Checks global MX, TXT, A, and CNAME propagation status using Cloudflare DoH endpoints.
  networkdnsutilities
• Brand asset collector
  Extracts brand logos and theme colors for any public business URL using Clearbit and HTML parsing.
  branddesignutilities
• Geopolitical prediction odds
  Retrieves live betting market prices and contract odds for global geopolitical events using PredictIt.
  predictionmarketutilities
• Water streamflow tracker
  Queries live US river level, streamflow gauge height, and flow velocity metrics using the USGS National Water Information System.
  waterlogisticsagriculture
• Holiday lookup
  Retrieves local bank and public holidays across 100+ countries to verify business days.
  holidayscalendarutilities
• Seismic activity monitor
  Queries the USGS Earthquake Hazards API for recent earthquakes exceeding a minimum magnitude.
  environmentseismicsafety
• Wildfire tracker
  Scans active wildfire reports and incidents via public NASA FIRMS satellite active fire alert feeds to locate active blazes. Matches: active wildfire detector, NASA FIRMS fire coordinates, forest fire satellite alert, wildfire tracking map, satellite burn zones detector.
  environmentwildfiresafetynasa-firmssatellite-fire-alerthazard-monitoring
• Space weather tracker
  Retrieves the current planetary K-Index and active solar storms from NOAA SWPC. Matches: space weather solar storm alert, planetary k-index monitor, geomagnetic activity tracker, solar flare satellite warnings, coronal mass ejection tracking.
  environmentspace-weathertelemetrysolar-stormk-indexnoaa-swpc
• Pollen forecaster
  Queries pollen allergen index counts (grass, birch, oak) by coordinate using Open-Meteo.
  environmentpollenhealth
• Marine conditions tracker
  Fetches live observation data for a specific NOAA marine buoy station.
  watermarineshipping
• Flood warnings tracker
  Scans active USGS gauge heights in a US state for potential river flooding. Matches: streamflow flood alerts, USGS gauge height warnings, river level flood checker, water streamflow warnings, river overflow stage alerts.
  waterfloodlogisticsusgs-gaugesstreamflow-warningsriver-flood-monitor
• UV index check
  Retrieves the current solar UV Index and calculates sun safety burn times.
  environmentuv-indexhealth
• Lightning tracker
  Queries the hourly lightning potential indices for coordinates.
  environmentlightningweather
• Signed geolocation presence oracle
  Validates an IP address's physical route and latency offsets to verify country compliance, returning a cryptographically signed Geolocation Certificate. Matches: geolocate ip check, secure location verification, ip route validator, compliant network geodata.
  locationcompliancesecurityip-geolocationoracle-verification
• Marine vessel tracker
  Resolves the current coordinate telemetry and voyage details for a cargo ship by MMSI number. Matches: cargo ship location tracker, AIS transponder coordinate lookup, find container vessel by MMSI, ocean logistics cargo positioning, track shipping container vessel, sea lanes transit tracker.
  transitshippinglogisticsais-trackervessel-locatormaritime-routes
• Rail train tracker
  Queries live train departures and schedule delays for European transit hubs using transport.opendata.ch.
  transitrailtravel
• Toll road fee estimator
  Estimates the approximate toll road costs for a route based on distance and state-level averages. Matches: toll road pricing, toll calculator, toll highway fees, driving trip expense calculator, truck route toll cost checker, logistics delivery overhead.
  transittolllogisticstollway-calculatorroute-pricingfreight-dispatch
• EV charging station finder
  Locates public electric vehicle charging stations within a given radius using Open Charge Map.
  transitevcharging
• Driving duration estimator
  Computes the shortest driving distance and duration between two coordinates using the public OSRM engine.
  transitroutinglogistics
• Airport flight board
  Retrieves the recent live arrivals list for a specific airport by ICAO code. Matches: airport arrivals board list, check arriving aircraft, OpenSky schedule flight landing board, flight terminal details.
  transitairportflightopenskyarrivals-schedulelanding-board
• FAA airport delay tracker
  Queries the FAA public API for active delays, ground stops, and weather statuses for a US airport. Matches: air traffic control delays, US airport ground stops, flight weather delays, FAA flight restrictions, airport layout status.
  transitairportlogisticsfaa-delaysground-stopsweather-delaysaviation-status
• Sales tax calculator
  Locates the combined sales tax rate (state, county, local) for a US ZIP code using Zippopotam. Matches: sales tax rate calculator, zip code tax lookup, commercial sales tax checker, e-commerce tax estimator, state county city tax rates.
  financetaxe-commercesales-taxzip-code-taxbilling-utilities
• Patent status finder
  Queries the official public USPTO PatentsView database to fetch status and info for a patent. Matches: USPTO patent lookup, search patent number info, patent inventor checker, patent filing date tracker, technology patent registry search.
  legalpatentintellectual-propertyuspto-searchinventor-lookuppatent-tracker
• Trademark checker
  Performs a preliminary conflict check on a word against public trademark registries. Matches: trademark check, brand conflict check, domain availability name checker, intellectual property brand screening.
  legaltrademarkintellectual-propertybrand-checkername-screeningconflict-checker
• Stock market halts tracker
  Parses the Nasdaq Trader RSS feed for active or recent stock trading halts.
  financetradinghalts
• Fed interest rate checker
  Retrieves the current federal funds target interest rate.
  financefed-ratemacroeconomics
• Company registry lookup
  Searches the SEC EDGAR registry (US public and SEC-registered companies) to retrieve registered business address, state of incorporation, SIC industry classification, and CIK/ticker identifiers. Matches: corporate registration check, company status finder, look up business incorporation details, verify corporate address lookup.
  financecorporatelegalcompany-checkerverification
• Financial arbitrage locator
  Queries live funding rates and mark-index spreads from centralised perp indices to locate yield arbitrage opportunities. Matches: arbitrage finder, funding rate arbitrage, cross-chain yield, spot-perp spread, perp funding rates checker.
  financetradingarbitragefunding-ratesperpetualsyield-alpha
• KYB corporate escrow registry
  SIMULATION ONLY — does not hold, lock, or move any funds. Looks up the seller company's live corporate registration status and returns a simulated, status-gated escrow ticket so agents can prototype a KYB-gated escrow flow. Matches: escrow simulation, corporate seller status check, sandbox compliance flow.
  financecorporateescrow-simulationsandboxcompliance-check
• Bounty escrow creator
  SIMULATION ONLY — does not deposit, lock, or move any USDC. Models a bounty-escrow creation flow (fee math, IDs, status) so agents can prototype task-reward coordination without on-chain custody. Matches: simulate bounty escrow, sandbox task reward, bounty escrow prototype.
  financeescrow-simulationsandboxcoordinationbounties
• Bounty escrow payout releases
  SIMULATION ONLY — verifies no signature and moves no funds. Models a bounty-payout authorization and returns a simulated completed-payout ticket. Matches: simulate escrow release, sandbox bounty payout, payout flow prototype.
  financeescrow-simulationsandboxcoordinationbounties
• Contract ABI resolver
  Resolves the contract interface JSON (ABI) for verified smart contracts on Base or Ethereum. Matches: get verified smart contract source interface, Basescan verified ABI fetcher, Etherscan contract JSON interface loader, decode transaction calldata helpers, verified contract methods parser.
  blockchainabiutilitiesetherscanbasescanverified-contractcalldata-decoder
• EVM transaction simulator
  Runs eth_call state simulation against the Base blockchain RPC to check for transaction reverts. Matches: EVM revert checks, test contract call, inspect transaction failure, dry-run solidity method, gas estimator, test token swap failure, simulate multisig transaction execution.
  blockchainsimulationutilitiesrevert-guardsolidity-dry-rununiswap-simulationeth-call
• Base gas scheduler
  Scans recent block gas details to estimate the minimum, average, and maximum base fee.
  blockchaingasutilities
• Token balance check
  Scans native balance and ERC-20 token balances for a wallet address on Base or Ethereum.
  blockchainbalancesfinance
• Perp funding tracker
  Queries current pricing and funding rate margins for perpetual swap contracts from Binance.
  blockchainfunding-ratestrading
• Token rug-pull risk composite
  One call that bundles the checks needed before trusting an unfamiliar ERC-20 token: scans deployed bytecode for dangerous function selectors (mint/pause/blacklist), reads on-chain owner() to check if ownership was renounced, and cross-references DexScreener for liquidity depth and pair age — returning a single risk score with flags. Matches: rug pull check, token safety score, is this token safe, contract risk scan, honeypot pre-check, ownership renounced check, liquidity risk.
  blockchaincrypto-securityrug-pulltoken-safetydefi
• DNS security auditor
  Queries DNSSEC (DS) and Certification Authority Authorization (CAA) records for a domain using Cloudflare DoH.
  networkdnssecurity
• SSL certificate checker
  Extracts certificate validity dates and expiration countdown for a domain using CertSpotter logs.
  networksslmonitoring
• Security headers auditor
  Fetches target URL headers to score configurations (HSTS, CSP, X-Frame-Options).
  networkheaderssecurity
• Timezone checker
  Resolves the local time, offset, and daylight savings status for a city name using Open-Meteo Geocoding.
  locationtimezonegeodata
• River temperature tracker
  Queries live stream water temperature telemetry from active USGS gauges in a US state.
  watertemperatureenvironment
• Domain WHOIS lookup
  Queries the global RDAP bootstrap directory for domain registration details, registrar name, creation date, and expiration timestamp. Matches: domain registration checker, WHOIS lookup tool, check domain owner registry, check website expiry date.
  networkdnswhoisdomain-checkermonitoring
• IP address lookup
  Scans an IPv4 or IPv6 address using public geodata to resolve location, country, ISP, autonomous system, and hosting flags. Matches: geolocate IP address, check client IP country, query ISP metadata, threat intelligence proxy check, hosting provider detector.
  networkipgeolocationthreat-intelutilities
• Network security auditor
  Scans an IP address or hostname to audit DNSSEC safety, SSL expiration status, HTTP security headers, and geodata compliance. Matches: network security audit, scan website ports, VPS shield test, audit host headers.
  networksecurityauditssldnsmonitoring
• Onchain transaction preflight
  One call that pre-flights an onchain transaction for an agent: simulates the call for reverts, checks the sender wallet's native gas balance, and reads current Base gas — returning a single GO/NO_GO verdict with reasons. Replaces 3 separate calls (simulate + balances + gas-history) every agent runs before transacting. Matches: pre-transaction check, agent transaction guard, revert + balance + gas preflight, onchain go/no-go, safe-to-send checker, autonomous trade preflight.
  blockchainagentpreflighttransaction-guardrevert-guardgo-no-gobundleauto-trader
• Onchain bounty depositor
  Deposits a real USDC bounty on Base using EIP-3009 receiveWithAuthorization, locking it in the non-custodial EscrowRegistry contract. Matches: deposit onchain bounty, non-custodial escrow bounty, lock usdc bounty.
  coordinationbountiesfinanceblockchain
• Onchain bounty releaser
  Triggers the EscrowRegistry contract to release a locked USDC bounty to a worker wallet. Releasing can only be authorized by the StatePulse hot wallet (owner). Matches: release onchain bounty, payout escrow bounty, resolve locked bounty.
  coordinationbountiesfinanceblockchain
• Transaction relayer
  Relays a transaction to Base Mainnet, paying the native gas on your behalf and charging your wallet equivalent USDC via EIP-3009 receiveWithAuthorization. Matches: gasless tx relayer, submit transaction base, pay gas in usdc.
  blockchainrelayergaslessfinance
• Request missing data
  FREE endpoint. If your agent needs live data this API does not serve yet — a feed, a metric, a lookup, another city or chain — describe it here. Requests are reviewed and frequently-requested data becomes a real endpoint, usually within days; re-fetch openapi.json or llms.txt to see new endpoints. Submitting a request directly helps your agent: the data you ask for is prioritized so it exists the next time you need it. Matches: data not available, missing endpoint, request new data source, feature request, no endpoint for this, wish this API had.
  freemetadata-requestfeedbackroadmap
• Submit API feedback
  FREE endpoint. Report anything about this API: wrong or stale data, an endpoint that failed, pricing that feels off, or something that worked well. Feedback is reviewed and data-quality reports are fixed with priority — submitting one directly improves the results your agent gets on its next call. Matches: report wrong data, endpoint broken, stale result, API feedback, rate this API.
  freemetafeedbackquality
• Suggest endpoint pricing
  FREE endpoint. If a paid endpoint's pricing is too high, suggest a target price based on alternative sources, budget limitations, or query frequency. Feedback is used to optimize pricing decisions.
  freemetapricingfeedback
• Capabilities difference lookup
  FREE endpoint. Submit an array of data or capability needs. The API returns details on matching endpoints we currently serve and automatically logs unmatched needs as roadmap requests.
  freemetadiscovery

How to call

https://statepulse-api.hahavoid0.workers.dev/a2a