Explore APIs
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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4,372 results
clouatre.caCrypto & DeFiScores a resume against a job description. Returns dimension scores, verdict, and red flags.
Baseclouatre.cafrom $0.0033 endpoints- LLending Rate OptimizerCrypto & DeFi
Discover what your assets could earn through lending—and where to find the strongest rates. Compare supported lending markets to find the best rates for the assets you hold and the amount you want to put to work.
Baseapi.alphabuild.xyzfrom $0.012 endpoints - Rr3l4y58.bithash.ccOther services
Skip the maze — clean, honest, trap-free access.
Baser3l4y58.bithash.ccfrom $0.0012 endpoints
Latamref - LatAm reference dataSocial & peopleCentral-bank policy rates, VAT/GST rates and thresholds, statutory interest and minimum wages for 22 Latin American countries including Brazil, Mexico, Argentina, Chile; also CPI, income, corporate and withholding tax, social contributions, holidays. Official central-bank FX reference rates for BR, CO, MX, PE. JSON with value, unit, effective date, official source URL and last_confirmed; a country
Baselatamref.devfrom $0.0025 endpoints
Euroref - Europe reference dataSocial & peopleCentral-bank policy rates, VAT/GST rates and thresholds, statutory interest and minimum wages for 34 European countries plus the EU including Germany, France; also CPI, income, corporate and withholding tax, social contributions, holidays. Official central-bank FX reference rates for CZ, DK, EU, HU, IS, NO, PL, RO, SE. JSON with value, unit, effective date, official source URL and last_confirmed;
Baseeuroref.devfrom $0.0025 endpoints- Ggov.halowerk.comCrypto & DeFi
Sorts unique scalar key/value entries through canonical JSON serialization and computes SHA-256. It verifies byte-level agreement with an optional claimed digest only; it does not prove block inclusion, timestamp, signer identity, or chain consensus.
Basegov.halowerk.comfrom $0.00210 endpoints - DDev ReferenceDeveloper tools
Parse a Cache-Control value, explain each directive, compute freshness and flag conflicts or leaks.
BaseSolanaPolygon+1dev-reference.x402tookit.comfrom $0.0212 endpoints - CCSS Design CalcImages, audio & video
Aspect ratio of a width and height (simplified, nearest common ratio) or the missing side for a ratio, with CSS values.
BaseSolanaPolygon+1css-design-calc.x402tookit.comfrom $0.0212 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 - CCheap UtilitiesDeveloper tools
WCAG contrast ratio between two hex colors with AA and AAA pass/fail for normal and large text.
BaseSolanaPolygon+1cheap-utilities.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 - AAudio CalcImages, audio & video
Dynamic range, levels and smallest step for a PCM bit depth, theoretical SNR, and the bit depth needed for a dB range.
BaseSolanaPolygon+1audio-calc.x402tookit.comfrom $0.0212 endpoints - Aagri.halowerk.comDeveloper tools
Computes the observed germination rate and a Wilson score interval from germinated and tested counts using a supplied normal critical value. It does not correct sampling bias, test vigor, identify disease or predict field emergence.
Baseagri.halowerk.comfrom $0.00210 endpoints - Ccontractlens-api.appin60.comCrypto & DeFi
Live EIP-1559 gas on Ethereum, Base, Arbitrum, Optimism, Polygon or BNB: base fee, slow/standard/fast priority tiers from the last 20 blocks, ready-to-use maxFeePerGas values, and estimated cost of an ETH transfer, ERC-20 transfer, approve and Uniswap swap.
BaseArbitrumcontractlens-api.appin60.comfrom $0.0016 endpoints - CCompliancePulseSearch & web
Who is this company, officially? Global LEI lookup and legal-entity search against GLEIF, the ISO 17442 registry behind KYB, MiFID and EMIR reporting. Verify an LEI's checksum and registration status, or search 2.9M+ entities by name and country to find the right identifier. Flags LAPSED, DUPLICATE and RETIRED registrations that a naive first-hit lookup would wire into a KYB record. Deterministic:
BaseSolanaPolygon+8compliancepulse.theaslangroupllc.comfrom $0.0113 endpoints - TTrending Topics (Wikipedia)Search & web
What is trending right now: the most-read Wikipedia articles for a language and day (default yesterday UTC), with views and rank, cleaned of the Main Page, special and other non-article pages. A daily signal of trending topics, breaking news and current events in 300+ Wikipedia language editions. Suited to trend discovery, news monitoring and content ideas.
BaseSolanaattention-trends.shopttyass-85f.workers.devfrom $0.0056 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
Verif Entreprise FRSocial & peopleFind a French company's SIREN from its name, optionally filtered by postcode or INSEE commune code. Returns up to 10 matches (name, status, NAF code, city, creation date), no personal data. First step before KYB / supplier verification of a French company.
BaseSolanaapi-production-24833.up.railway.appfrom $0.0024 endpoints- PPhoenix Zero L2 Health OracleCrypto & DeFi
Real-time L2 sequencer health across 12 chains (Base, Arbitrum, Optimism, zkSync, Blast, Linea, Mantle, Mode, Scroll, Taiko, Polygon zkEVM, Casper). Returns kernel-level P99/P95 RTT from eBPF probes, revert ratios (Base and Arbitrum via eth_getBlockReceipts), gas pressure, and execution recommendation.
BasePolygonArbitrumrtt.phoenix-ai.workfrom $0.014 endpoints - DDebtPulseAI & agents
Debt collection rights and consumer-protection laws (FDCPA / FCRA). Covers US FDCPA and FCRA, UK FCA, and Australia ACCC protections by country, with complaint resources. For consumer-rights and debt-relief agents.
BaseSolanaPolygon+8debtpulse.theaslangroupllc.comfrom $0.0516 endpoints - AAARN Web ReadAI & agents
Read one public web URL and convert its webpage content to clean Markdown or plain text. Removes HTML boilerplate and returns LLM-ready text for AI agents, RAG context, research and summaries. One URL per paid request.
Baseapi.aarn.spacefrom $0.0022 endpoints - EExchange Trading CalendarMarkets & finance
Use when an agent needs to know if a stock exchange trades on a given day (default today) before scheduling orders, reports or alerts. 28 exchanges incl. NYSE, Nasdaq, LSE, Xetra, Euronext, SIX, Tokyo, HKEX, Shanghai, ASX. Returns holiday name, hours in local time + UTC, half days, lunch breaks, pre/after-market (Nasdaq, Xetra), live status, next open/close, previous/next trading day. Official exc
Basehandelskalender-api.pages.devfrom $0.0023 endpoints - AAgent GuildAI & agents
Agent Guild paid read (fraud_check): collusion suspicion scores, reasons and cluster identifiers Use when an autonomous agent needs to: list agents at or above a minimum collusion suspicion score; review flagged agents and their collusion suspicion reasons.
Baseagent-guild-5d5r.onrender.comfrom $0.0052 endpoints
x402checkCrypto & DeFiCheck a counterparty before paying: OFAC SDN, phishing and drainer feeds, a live watch of drainer infrastructure, transaction simulation and injected-instruction analysis. Returns a score and a signed ES256 attestation.
BasePolygonArbitrum+3x402check.xyzfrom $0.00352 endpoints- Aapi.hyperd.aiSocial & people
Composed DAO governance translator. Takes a Snapshot or Tally proposal URL, fetches structured data + summary via /api/governance/summarize, then produces a 2-3 sentence plain-language translation + domain band (economic_param / treasury / code_upgrade / governance_meta / social_signal). 1-year cache — proposals are immutable.
Baseapi.hyperd.aifrom $0.057 endpoints - PPower Strip SecurityAI & agents
Prompt-injection scanner for content your agent is about to read. Returns a risk score (0-1), a level (low/medium/high), findings and the cleaned text wrapped as untrusted data (hidden text, invisible characters, data-exfiltration links, instruction-override phrases in 13 languages). Deterministic. Content is scanned in memory and never stored. Not charged if it fails. Also: /v1/read $0.005, /v1/s
Baseapi.powerstripsecurity.workers.devfrom $0.0024 endpoints
PickleCheckCrypto & DeFiPickleCheck endpoint check: is it safe to pay this x402 endpoint? Reads its payment offer and pay-to wallet (sanctions, Circle blocklist, changed pay-to, history, buyers) before you pay. It looks, never pays; unreachable or bad input are not charged.
Basepicklecheck.onrender.comfrom $0.0052 endpoints
Usaref - N America referenceSocial & peopleCentral-bank policy rates, VAT/GST rates and thresholds, statutory interest and minimum wages for 10 North American countries including United States, Canada, Mexico; also CPI, income, corporate and withholding tax, social contributions, holidays. Official central-bank FX reference rates for CA, MX, US. JSON with value, unit, effective date, official source URL and last_confirmed; a country with n
Baseusaref.devfrom $0.0025 endpoints- Ccleared.inkImages, audio & video
Wan Text-to-Video Job (480p)
BaseSolana Devnetcleared.inkfrom $0.011 endpoint
Lumi Market IdeasCrypto & DeFiLumi Market Ideas (educational, not financial advice). Rule-based technical read for one of 51 large-cap crypto assets (XRP, BTC, ETH and more): label (Strong Buy to Strong Sell) and score, 1h/4h/1d labels, indicator summary (RSI, MACD, EMA stack, Bollinger, StochRSI, volume) and price with 24h change. From public exchange candles; 1h refreshes about every 13 min. Paper-trade analysis, not investm
Basexrplstellarapi.lumitrades.iofrom $0.00413 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.