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Every pay-per-call x402 API we can find, ranked by what agents actually pay for. No accounts, no API keys.
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114 results- Aapp.heinrichstech.comOther services
BitBooth echo endpoint — pays a tiny USDC fee, returns a JSON echo. Reference implementation of the x402 + CDP Facilitator + Bazaar discovery loop.
BaseSolanaxrpl+1app.heinrichstech.comfrom $0.0015 endpoints - WWealthPulseSocial & people
FDIC bank-health check, deterministic. Answers "is my bank safe", "is this bank well capitalized", "did this bank fail". Resolves a US bank by name or FDIC cert, then computes from quarterly Call Reports: PCA capital category (12 CFR 324.403), ROA/ROE/NIM, noncurrent-loan and reserve-coverage ratios, YoY deposit growth, uninsured-deposit share, 8-quarter trend. Includes closed/failed institutions
BaseSolanaRobinhood Chain+9wealthpulse.theaslangroupllc.comfrom $0.0217 endpoints - RRacingPulseSocial & people
Statistically-backed racing angles — trainer/jockey combos and trends. For horse-racing betting agents.
BaseSolanaPolygon+8racingpulse.theaslangroupllc.comfrom $0.0213 endpoints - LLegalPulseSocial & people
Trademark knock-out check with live official verification: name in, conflict risk verdict out. Candidate conflicting marks are looked up in the USPTO TSDR system in real time and returned as verbatim official records (LIVE/DEAD status, owner, classes, dates) — research leads that could not be officially verified are labeled as such. US federal register; names the right register for non-US markets.
BaseSolanaPolygon+8legalpulse.theaslangroupllc.comfrom $0.0814 endpoints
x402 DoctorAI & agentsShould my agent pay this expensive x402 endpoint? Call it before a costly or repeated payment. Returns the go / caution / no_go verdict plus the full diagnosis, the endpoint's check history per day over 30 days, how reliable the seller's other endpoints are and whether the endpoint moved domains. Never pays the endpoint. Bulk: 1000 credits for $0.80 via /api/v1/credits.
SolanaBasexrpl+4x402-doctor.fizzl.eufrom $0.0016 endpoints- HHarvestPulseAI & agents
Dirty Dozen & Clean Fifteen guide — which produce to buy organic: the EWG pesticide priority list and a smart organic buying strategy. For foodie and consumer agents.
BaseSolanaPolygon+8harvestpulse.theaslangroupllc.comfrom $0.0511 endpoints - FFindPulseMarkets & finance
Best product for my use case, what should I buy, product finder by need, product recommendation. For shopping and buyer agents: takes a use case plus optional budget and preferences and returns the top product picks for that specific need, with honest trade-offs and sourcing links.
BaseSolanaPolygon+8findpulse.theaslangroupllc.comfrom $0.0513 endpoints - CCitePulseAI & agents
Single-paper lookup by DOI or title for research agents — citation count, influence, open-access status with a direct legal-OA link (Unpaywall), venue, and a TLDR. Deterministic passthrough over OpenAlex + Semantic Scholar + Unpaywall, no synthesis, cheap and fast.
BaseSolanaPolygon+8citepulse.theaslangroupllc.comfrom $0.028 endpoints - MMarketPulseImages, audio & video
TTS-ready voiceover narration script for video ads, explainers, podcast ads, YouTube intros or phone greetings: clean plain-text script sized to your duration at ~150 wpm, a delivery-marked version (pauses, emphasis, breaths), timed segments, voice/tone direction, alt openings, pronunciation notes for TTS engines. Paste straight into Voicebox, ElevenLabs or any voice tool.
BaseSolanaPolygon+8marketpulse.theaslangroupllc.comfrom $0.0815 endpoints - FFilingsPulseMarkets & finance
Eight quarters of a US public company's reported fundamentals, straight from SEC XBRL. Answers "Apple revenue last 8 quarters", "is NVDA net income growing", "MSFT EPS trend". Revenue, net income, diluted EPS per quarter with computed YoY changes and the exact XBRL tag used — every number verbatim from data.sec.gov companyfacts, nothing modeled. Accepts ticker, company name, or CIK. No LLM, no key
BaseSolanaRobinhood Chain+9filingspulse.theaslangroupllc.comfrom $0.0214 endpoints - EESGPulseCrypto & DeFi
CSRD compliance roadmap for sustainability-reporting and compliance agents. Returns which ESRS standards apply, what must be disclosed, phase deadlines, and a double-materiality assessment guide.
BaseSolanaPolygon+8esgpulse.theaslangroupllc.comfrom $0.0517 endpoints - GGridPulseAI & agents
Home battery storage ROI and payback calculator — Powerwall vs alternatives, backup-power value, with the IRA 30% tax credit and state incentives applied. For homeowner and solar agents.
BaseSolanaPolygon+8gridpulse.theaslangroupllc.comfrom $0.0110 endpoints - TTaxPulseCrypto & DeFi
Income tax rates by country, corporate tax, capital gains tax, tax residency rules, crypto tax treatment for any jurisdiction. Worldwide guide giving a full tax overview of any country by scenario. Tax intelligence, not advice.
BaseSolanaRobinhood Chain+9taxpulse.theaslangroupllc.comfrom $0.1015 endpoints - PPropPulseAI & agents
UK council-tax banding challenge check — neighbor-band cluster analysis against the free official VOA/SAA lookups, statutory route selection (formal proposal vs informal review, England/Wales/Scotland variants incl. the post-2023 Local Taxation Chamber), verified timelines (4/12-month decisions, 3/4-month appeals), evidence rules (the VOA rejects house-price-index data — verified), and the mandato
BaseSolanaPolygon+8proppulse.theaslangroupllc.comfrom $0.0514 endpoints - CCyberPulseCrypto & DeFi
CVE fact check, deterministic. Answers "is CVE-XXXX-NNNN real", "is it exploited in the wild", "what version fixes it", "how severe is it". Joins the NVD record (CVSS score, vector, dates), the CISA KEV catalog (actively-exploited flag, remediation due date, ransomware use), and OSV (affected packages + fixed versions per ecosystem). No LLM. Distinguishes "not a known CVE" from "registry unreachab
BaseSolanaPolygon+8cyberpulse.theaslangroupllc.comfrom $0.0211 endpoints - WWaterPulseAI & agents
Live USGS river-gauge tick, deterministic. Answers "what is the flow at this gauge right now", "is this river high or low vs this week". Returns the latest streamflow (discharge, cfs) and gage height (ft) for one USGS site plus the 7-day min/max range, reading count, site name and coordinates, straight from USGS instantaneous values. Unknown sites 404 before payment. No LLM, no key, public domain.
BaseSolanaPolygon+8waterpulse.theaslangroupllc.comfrom $0.0111 endpoints - PPolicyPulseSearch & web
Federal Register search, deterministic. Answers "new SEC rules on stablecoins", "is there an open comment period on AI", "when does this rule take effect". Full-text search over every US federal rule, proposed rule and notice, with effective dates, comment deadlines and docket ids — or mode=open-comments for comment periods closing soonest. Typed documents straight off the official API. No LLM, no
BaseSolanaPolygon+8policypulse.theaslangroupllc.comfrom $0.0212 endpoints - GGrantPulseMarkets & finance
Federal grant search for grant-writer and nonprofit agents. Returns live Grants.gov results with agency insights and past-award context.
BaseSolanaPolygon+8grantpulse.theaslangroupllc.comfrom $0.1013 endpoints - CCareerPulseMarkets & finance
Wage-recovery check — unpaid overtime (FLSA 1.5x + CA/AK/NV daily rules + Ontario 44h), minimum-wage shortfall vs effective-dated 2025/2026 state tables, final-paycheck deadlines & penalties (CA waiting-time, MA treble, NY 100%, IL 5%/mo, WA double), UK unlawful deductions (3-month tribunal window + ACAS route + NMW bands). Computed amounts with statutory-damages exposure, citations, deadline math
BaseSolanaPolygon+8careerpulse.theaslangroupllc.comfrom $0.0513 endpoints - AAlphaPulseSocial & people
DeFi copy-trading vault discovery on Hyperliquid, GMX, dYdX and Gains Network — TVL, APR, risk profile and smart-contract assessment. For on-chain investing agents.
BaseSolanaRobinhood Chain+9alphapulse.theaslangroupllc.comfrom $0.0814 endpoints - TTalentPulseMarkets & finance
Layoffs and workforce-reduction tracker by industry and region — which companies are cutting jobs, what talent is newly available, who is counter-hiring, plus US WARN Act signals and BLS unemployment context. Real-time hiring-market intelligence for recruiting, sourcing and talent agents. Any industry, global, 10 languages.
BaseSolanaPolygon+8talentpulse.theaslangroupllc.comfrom $0.109 endpoints - Ffuelscout.scalpstream.comData & research
FuelScout cheapest-fuel query (station-level where open data exists, regional averages otherwise)
BaseArbitrumPolygon+2fuelscout.scalpstream.comfrom $0.011 endpoint - VVetPulseAI & agents
Veteran discount finder for veteran and VA-benefits agents. Returns retail, dining, travel, recreation-access, and regional programs most veterans never claim — covering US, UK (Defence Discount Service/Blue Light Card), Canada, Australia (RSL), New Zealand (RSA), and Germany.
BaseSolanaPolygon+8api.vetpulse.theaslangroupllc.comfrom $0.058 endpoints - VVenturePulseMarkets & finance
Real-time VC funding-round intelligence by sector, stage and region — recent deals, active investors, valuation benchmarks and funding climate. For founder and VC agents.
BaseSolanaPolygon+8venturepulse.theaslangroupllc.comfrom $0.1010 endpoints - SScholarPulseSocial & people
Scholarship search for student and scholarship agents. Returns matched scholarships by academic profile, major, country, and level.
BaseSolanaPolygon+8scholarpulse.theaslangroupllc.comfrom $0.0813 endpoints - Bbruk-agent-api.fly.devCrypto & DeFi
Checks whether an XRP Ledger token issuer is who it claims to be: two-way domain verification (on-ledger Domain field against the domain's xrp-ledger.toml), tokens issued and outstanding, and control flags such as freeze, clawback, blackholed, and multisign. Useful before accepting or holding a token.
Basexrplbruk-agent-api.fly.devfrom $0.0018 endpoints - AAirdropPulseCrypto & DeFi
Launch provenance check for LONG.xyz / Doppler tokens on Robinhood Chain — one call verifies a token against the on-chain Doppler Airlock registry: registered launch or not, which stock token backs it (and whether that numeraire is an official Robinhood stock token), launching integrator (LONG primary vs other launchpads vs suffix imitators), factory creator match, 1e18 vanity suffix, governance b
BaseSolanaRobinhood Chain+9airdroppulse.theaslangroupllc.comfrom $0.0511 endpoints - TTradePulseCrypto & DeFi
Live freight rate intelligence for logistics and trade agents. Returns container and air rates by lane with a 90-day benchmark, route status, carrier options, and cost estimates.
BaseSolanaRobinhood Chain+9tradepulse.theaslangroupllc.comfrom $0.0811 endpoints
Ichimoku SignalCrypto & DeFiBitcoin and crypto trend signal: is a pair bullish, bearish or neutral right now? From the Ichimoku Cloud (cloud position, tenkan/kijun cross) for BTC, ETH, SOL or any top-200 coin on any interval, from live candles on Binance.US, Kraken, Gate or MEXC.
BaseSolanaxrpl+4ichimoku-signal.fizzl.eufrom $0.015 endpoints- SSeniorPulseAI & agents
After-death checklist / what to do when an elderly parent or spouse dies: estate steps to take, survivor benefits to claim, and grief-support resources. For family and caregiver agents — informational.
BaseSolanaPolygon+8seniorpulse.theaslangroupllc.comfrom $0.0811 endpoints
Service data comes from the Coinbase CDP and PayAI discovery lists and refreshes every few hours. Usage is paid calls over the last 30 days. APIs launched here are verified by us; the rest are paid directly to their owners.