Explore APIs
Every pay-per-call x402 API we can find, ranked by what agents actually pay for. No accounts, no API keys.
- Projects
- 4.4K
- Paid endpoints
- 87K
- Paid calls · 30 days
- 885K
- Launched here
- 0
Other services
181 results- FFrontera SignalOther services
Use to check what common building materials cost on the shelf in the Rio Grande Valley (McAllen, Mission, Edinburg): 2x4 and 2x6 studs, OSB, drywall, concrete mix, CMU block, rebar, shingles, underlayment, housewrap, insulation, paint, doors, deck screws. Dated prices at big box stores and a local yard, checked twice a week, for estimating or checking a bid. Not a quote. Example: "What does a shee
Basefronterasignal.comfrom $0.0114 endpoints - Tteuerung.halowerk.comOther services
Food inflation dashboard with the headline category rate, movers and source-based context. Example: geo DE. Published periods and gaps stay visible. Official indices are not retail shelf prices.
Baseteuerung.halowerk.comfrom $0.00212 endpoints - MmagentOther services
Map a natural-language drug, diagnosis, or lab phrase to a current RxNorm, ICD-1
Baseapi.magentlab.comfrom $0.0054 endpoints - Ffracht.halowerk.comOther services
Matches a shipment reference against caller-supplied carrier patterns. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age.
Basefracht.halowerk.comfrom $0.00110 endpoints - Rr3l4y58.bithash.ccOther services
Skip the maze — clean, honest, trap-free access.
Baser3l4y58.bithash.ccfrom $0.0012 endpoints - CCooking CalculatorsOther services
Beer, wine and cider alcohol by volume from original and final gravity, with both standard formulas and attenuation.
BaseSolanaPolygon+1cooking-calc.x402tookit.comfrom $0.0212 endpoints - CCalendar SystemsOther services
Age in years, months, days and days lived, Korean and East Asian ages, next birthday with leap-day rules, and zodiac.
BaseSolanaPolygon+1calendar-systems.x402tookit.comfrom $0.0212 endpoints - Zzaref.devOther services
South African Fuel prices (Current SA retail/wholesale fuel prices: petrol 93/95 (inland & coastal), diesel 50ppm, illuminating paraffin. Rand per litre.) Clean cited JSON with official source URL, effective date and freshness flag.
Basezaref.devfrom $0.0056 endpoints - Xx402helper.xyzOther services
Find US court cases, opinions and dockets naming a business, with case name, court, date, citation, docket number and nature of suit.
SeiBaseSolana+2x402helper.xyzfrom $0.0016 endpoints - AAlgebra and Geometry SolversOther services
Complex number arithmetic, modulus and argument, integer powers, square root and n-th roots, in rectangular and polar form.
BaseSolanaPolygon+1math-geometry.x402tookit.comfrom $0.0211 endpoints - Ddep.halowerk.comOther services
Calculates release intervals and inactivity from current registry timestamps. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age.
Basedep.halowerk.comfrom $0.0039 endpoints - Ttrust402.vercel.appOther services
Run a fast live probe for one x402 endpoint and summarize challenge/payment-flow readiness.
Basetrust402.vercel.appfrom $0.0052 endpoints - SSpace ObjectsOther services
Asteroids and comets passing Earth within a lunar-distance limit in the next or last N days: distance, speed, size range.
BaseSolanaPolygon+1space-objects.x402tookit.comfrom $0.0210 endpoints - LLinear AlgebraOther services
Determinant of a square matrix (up to 10x10) by LU with partial pivoting, flagging a numerically singular matrix.
BaseSolanaPolygon+1linear-algebra.x402tookit.comfrom $0.0210 endpoints - CConstruction CalculatorsOther services
Board feet for lumber from thickness, width, length and quantity (nominal sizes), with total cost at a price per board foot.
BaseSolanaPolygon+1construction-calc.x402tookit.comfrom $0.0210 endpoints - AAutomotive CalculatorsOther services
Estimate quarter-mile time and trap speed from weight and horsepower (Hale), plus a power-limited lower bound for 0-60 mph.
BaseSolanaPolygon+1automotive-calc.x402tookit.comfrom $0.0210 endpoints - LLand Survey ScreeningOther services
Great-circle distance (miles, km, feet, nautical miles) and initial compass bearing between two latitude/longitude points.
BaseSolanaPolygon+1land-survey.x402tookit.comfrom $0.028 endpoints - GGrades & Study CalcOther services
Score needed on a final exam (or any remaining work) to reach a target class grade, from current grade and its weight.
BaseSolanaPolygon+1grades-calc.x402tookit.comfrom $0.028 endpoints - CChronoSureOther services
Resolve a local time to an exact UTC instant with explicit DST ambiguity handling, business-day arithmetic, public-holiday status, and working-hour overlap across timezones. Detects ambiguous and nonexistent local times instead of silently shifting them. Declares its IANA tzdb release and per-jurisdiction holiday provenance.
Basechrono.schemasure.comfrom $0.021 endpoint - PParty & Event PlannerOther services
Tip and even bill split in exact cents: tip on subtotal or total, shares that add up, optional round up to whole dollars.
BaseSolanaPolygon+1party-event-calc.x402tookit.comfrom $0.029 endpoints - AAviation CalculatorsOther services
Density altitude from field elevation, altimeter setting and temperature, exact and by rule of thumb, with a performance flag.
BaseSolanaPolygon+1aviation-calc.x402tookit.comfrom $0.029 endpoints - SShipping & Logistics CalcOther services
How many identical boxes fit inside a larger box or crate: best of six orientations in a simple grid, with utilization.
BaseSolanaPolygon+1shipping-calc.x402tookit.comfrom $0.028 endpoints - IIslamic Prayer TimesOther services
High-precision Islamic prayer times (fajr, sunrise, dhuhr, asr, maghrib, isha) plus qibla direction for any coordinates and date. Pure astronomical computation (adhan library), 11 calculation methods including Umm al-Qura, Dubai, Egyptian, MWL. Ideal for agents building Muslim-facing schedules, reminders, or travel plans.
Baseapi.qist.infofrom $0.012 endpoints
ProblocksOther servicesVerify payment connectivity with USDC on Base. Returns a JSON pong and UTC timestamp after settlement.
Basex402.problocks.iofrom $0.0011 endpoint- FFood Barcode FactsOther services
Compare two packaged foods by barcode: Nutri-Score, NOVA, and per-100 g energy, sugars, saturated fat, salt, fibre and protein.
BaseSolanaPolygon+1food-barcode.x402tookit.comfrom $0.027 endpoints
prices.genexxis.comOther servicesMedian spot price of up to 50 coins across Binance, Coinbase, Kraken, OKX and Bybit in usd/usdt/eur/btc, with per-venue prices, 24h change %, summed 24h USD volume and cross-venue spread %. ids accepts CoinGecko ids or tickers.
Baseprices.genexxis.comfrom $0.0033 endpoints
odds.genexxis.comOther servicesMost traded open prediction markets right now across Polymarket and Kalshi, ranked by 24h volume, with implied probabilities and links.
Baseodds.genexxis.comfrom $0.0053 endpoints- WWork Time CalcOther services
Add or subtract N business days from a date, skipping weekends and your holiday list, WORKDAY style.
BaseSolanaPolygon+1work-time-calc.x402tookit.comfrom $0.029 endpoints - WWord ToolsOther services
Check whether two words or phrases are anagrams, ignoring case, spaces, punctuation and accents; shows the letter differences.
BaseSolanaPolygon+1word-tools.x402tookit.comfrom $0.029 endpoints - Xx402 CheckupOther services
Checkup for x402 buyer clients. Pay once and get a field-by-field diagnosis of the payment your client signed (amount, recipient, validity window, clock offset, nonce, EIP-712 signature) and of the request that arrived, plus the facilitator's verify and settle results. Base mainnet payments get the full diagnosis; Base Sepolia payments get a preview with the status of each check only.
BaseBase Sepoliacheckup.kagurazaka.devfrom $0.0051 endpoint
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.