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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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393 results- FFootballPulseOther services
Clean-sheet probability — goalkeeper stats, defensive metrics, home/away split, BTTS and under-2.5 analysis. For football betting agents.
BaseSolanaPolygon+8footballpulse.theaslangroupllc.comfrom $0.1011 endpoints - PPublishing CalcImages, audio & video
Audiobook running time from a word count at about 9,300 words per hour (change it), as hours and clock time.
BaseSolanaPolygon+1publishing-calc.x402tookit.comfrom $0.024 endpoints - TThermodynamics and Heat TransferCrypto & DeFi
Carnot limit for a heat engine, refrigerator and heat pump from hot and cold absolute temperatures, with work and heat flows.
BaseSolanaPolygon+1thermo-heat-calc.x402tookit.comfrom $0.028 endpoints - Mmailferret.appin60.comSocial & people
Find a person's verified work email from first name, last name and company domain. Live SMTP check against the company's mail server, catch-all detection. Charged only when a mailbox is verified; misses return 4xx and are not charged.
BaseArbitrummailferret.appin60.comfrom $0.0034 endpoints - HHerbaPulseSocial & people
Natural remedy lookup for herbalist and wellness agents. Returns evidence-rated traditional remedies and herbs for any condition.
BaseSolanaPolygon+8herbapulse.theaslangroupllc.comfrom $0.089 endpoints - GGovSpendPulseSearch & web
Federal contract / award search and government spending lookup by keyword, NAICS, agency, or state — real-time USASpending.gov data. Returns top awards with recipient, amount, agency, period, and vendor market intelligence, for business-development and market-intelligence agents.
BaseSolanaPolygon+8govspendpulse.theaslangroupllc.comfrom $0.089 endpoints - GGeopoliticalPulseSocial & people
Geopolitical supply-chain risk for supply-chain, sourcing, and risk agents. Maps concentration, chokepoints, sanctions exposure, and reshoring options for any sector or commodity, from chips to critical minerals.
BaseSolanaPolygon+8geopoliticalpulse.theaslangroupllc.comfrom $0.1510 endpoints - EEduPulseMarkets & finance
Homeschool co-op finder / find local homeschool groups / support groups near me. Locates co-ops, support groups, and educational communities in any area via live web search, with evaluation criteria, cost expectations, and how-to-start guidance.
BaseSolanaPolygon+8edupulse.theaslangroupllc.comfrom $0.109 endpoints - EEconSignalPulseSocial & people
Multi-source inflation intelligence for any country — official CPI, IMF forecasts, food/energy dynamics and alternative signals, including where CPI is manipulated. For macro and EM agents.
BaseSolanaRobinhood Chain+9econsignalpulse.theaslangroupllc.comfrom $0.0810 endpoints - BBuildPulseAI & agents
Project cost estimate for homeowner and contractor agents. Returns a detailed line-item breakdown with labor, materials, and contingency for any project.
BaseSolanaPolygon+8buildpulse.theaslangroupllc.comfrom $0.0810 endpoints - Pro Yield APICrypto & DeFi
Pro Yield in one call: live stablecoin lending venue rates (safety tiers, blend target, sleeve rates, provenance) plus vault state on HyperEVM — share price, total assets, live caps — and a wallet's position when ?address= is supplied. Use when an agent wants the whole Pro Yield picture for one $0.010 call instead of two.
SolanaBaseArbitrum+5pyd.fifrom $0.013 endpoints - UUS National DebtData & research
US national debt — latest total federal debt, debt held by the public and intragovernmental holdings in US dollars. Track government borrowing and build fiscal monitoring dashboards.
BasePolygonArbitrum+1us-debt.use.x402atlas.comfrom $0.011 endpoint - BBrazil Rates and InflationOther services
Brazil IPCA inflation — latest monthly consumer-price change in percent. Track inflation and purchasing-power trends with the reference month.
BasePolygonArbitrum+1brazil-macro.use.x402atlas.comfrom $0.012 endpoints - PProbability CalculatorsOther services
Bayes' theorem: posterior probability from a prior, sensitivity and false-positive rate, with natural frequencies and odds form.
BaseSolanaPolygon+1probability-calc.x402tookit.comfrom $0.025 endpoints - PPhotography CalculatorsImages, audio & video
Crop factor of a sensor, with the full-frame equivalent focal length, aperture and ISO for a lens, or a custom sensor size.
BaseSolanaPolygon+1photo-calc.x402tookit.comfrom $0.025 endpoints - UUUID InspectorOther services
UUID inspector — parses any UUID (canonical, braces, URN or 32-hex form) and returns its version, variant, embedded timestamp for v1/v6/v7, nil/max flags, hex and URN forms. Use to validate identifiers or recover the creation time of UUIDv7 keys.
BasePolygonArbitrum+1uuid.use.x402atlas.comfrom $0.0052 endpoints - TTime Series CalculatorsOther services
Sample autocorrelation (ACF) and partial autocorrelation (PACF, Durbin-Levinson) of a series up to lag k, with 95% bounds.
BaseSolanaPolygon+1time-series-calc.x402tookit.comfrom $0.028 endpoints - SSafePulseAI & agents
Active recall dashboard for consumer and safety agents. Consolidates CPSC, FDA, USDA FSIS, and NHTSA recalls in one view.
BaseSolanaPolygon+8safepulse.theaslangroupllc.comfrom $0.088 endpoints - PParentPulseMarkets & finance
Baby and child product recall check for parenting and family agents worldwide. Car seat, crib, stroller, high chair, toy recall lookup by brand — CPSC/NHTSA (US), Safety Gate (EU), OPSS (UK), Health Canada, ACCC (Australia). Is this product recalled? How do I verify a recall by country?
BaseSolanaPolygon+8parentpulse.theaslangroupllc.comfrom $0.089 endpoints - MMindPulseAI & agents
Sleep and mental health for mental-health and wellness agents. Returns a CBT-I protocol, the sleep-mood connection, and when to seek specialist help.
BaseSolanaPolygon+8mindpulse.theaslangroupllc.comfrom $0.089 endpoints - IInsurePulseSocial & people
Renters insurance premium estimate and coverage calculator — right coverage amounts, carrier comparison, umbrella guidance, and a country-aware estimated monthly premium from public benchmarks. For insurance and personal-finance agents, any country.
BaseSolanaPolygon+8insurepulse.theaslangroupllc.comfrom $0.088 endpoints - FFranchisePulseMarkets & finance
Franchise broker landscape for franchise-buyer and entrepreneur agents. Returns consultant commission conflicts, fee-only alternatives, questions to ask, and red flags.
BaseSolanaPolygon+8franchisepulse.theaslangroupllc.comfrom $0.088 endpoints - CChronicaPulseSocial & people
Obituary research for genealogy and family-history agents. Returns death notices, survivor lists, and genealogical detail from historical newspaper archives.
BaseSolanaPolygon+8chronicapulse.theaslangroupllc.comfrom $0.059 endpoints
PerpRadar by AgentGateImages, audio & videoBulk token risk check API for Base (batch honeypot and rug scan). Batch Base token risk verdicts: up to 20 ERC-20 addresses in one call, priced per address, each with the same fixed JSON as /v1/verdict (verdict safe / caution / danger, risk_score 0-100, honeypot and tax simulation, owner privileges, proxy, LP, holders, verified, age; unknown when a source is down). Charged only when at least one a
BasePolygonArbitrum+1api.youraitools.cofrom $0.000569 endpoints- VVerifiable Random ToolsImages, audio & video
Verifiable Random shuffle — a uniform Fisher-Yates permutation bound to a future drand round the server waits for (typically 3-6s) and verifies locally, with original indices and a reproducible proof transcript.
BasePolygonArbitrum+1verifiable-random.use.x402atlas.comfrom $0.0053 endpoints - FFastPath Bitcoin APIOther services
Pay once to receive a short-lived WebSocket ticket for the live Bitcoin mempool stream.
BasePolygonArbitrum+1api.nativebtc.orgfrom $0.0052 endpoints - UURL Unwrap / Redirect TracerCrypto & DeFi
Trace an HTTP redirect chain to its final destination without downloading page bodies. Returns every hop (URL + status), the final URL, and safety warnings — link-safety grounding for agents before they visit or cite a URL. Clean JSON.
BasePolygonArbitrum+1unwrap.use.x402atlas.comfrom $0.0091 endpoint
DevX VoiceImages, audio & videoMachine translation for agents between 100 languages: send text (up to 5,000 chars), target_lang and optional source_lang (auto-detect by default) and get the translation. $0.001 USDC per started 1,000 characters on Base; failures are not charged. LibreTranslate/dTelecom-style {q, source, target} also accepted at /v1/translation. M2M100 1.2B. By DevX.
AvalancheBasePolygon+2voice.madebydevx.comfrom $0.0014 endpoints- WWorld CitiesSearch & web
Nearest world cities to a latitude and longitude within a radius, with distance and compass bearing.
BaseSolanaPolygon+1world-cities.x402tookit.comfrom $0.028 endpoints - QQR Code & Identicon GeneratorCrypto & DeFi
Identicon generator — turn an exact UTF-8 seed into a deterministic mirrored avatar returned as base64-encoded SVG or PNG in JSON.
BasePolygonArbitrum+1visuals.use.x402atlas.comfrom $0.0052 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.