AI chat completions API - pay per request with USDC on Base

Real-time Twitter/X data for AI agents. No sign-up, no API keys. Pay per request in USDC on Base via x402.

Google Solar API - Download any GeoTIFF data layer (rgb, dsm, annualFlux, monthlyFlux, hourlyShade, mask) and return it as a PNG/JPEG image. Accepts either a GeoTIFF `id` (Mode A) or `latitude`/`longitude` (Mode B, which resolves the layer URL via dataLayers:get). For monthlyFlux pass `month` (1-12) for a single month, omit for a 4×3 grid. For hourlyShade pass `month` (required in Mode B) and o...

Google Solar API - Closest building roof insights including imageryDate

84 pay-per-call AI services on x402 V2 — market intel, DeFi execution, AI creative tools. USDC on Base on every endpoint, Solana USDC on 66 of 84. From $0.001 per call.

BotPay provides payment access, API discovery, automated service delivery, and settlement infrastructure for AI agents, applications, robots, and connected machines.

ERC20 token balance for any Ethereum wallet - USDC, USDT, DAI, or any token - via balanceOf (eth_call) on OneSource live Ethereum RPC

Ethereum mainnet and Sepolia testnet RPC for AI agents, served from OneSource-operated nodes. Live block, balance, contract, NFT, transaction, and event data. Pay per call or use batch/session mode — USDC on Base via x402, or pathUSD/USDC.e on Tempo via MPP. No API keys required.

Otto AI data endpoint: base-season (refreshed hourly; response carries generatedAt/staleness metadata).

Onchain loyalty protocol on Base L2. Launch B20 rewards, earn and redeem tokens, trade P2P, automate with AI agents via REST and MCP.

Pay-per-request access to flights, award availability, hotels, activities, and transfers. No auth, no subscriptions.

Get routes between two airports with historical filing data

The (most) everything API: 575+ pay-per-call endpoints for AI agents — ground-truth data, a full AI gateway, and agent infrastructure (storage, queues, watchers). USDC via x402, no signup, no API keys, and upto billing: pay actual usage, not the quote.

AI API Gateway with smart routing, pay per call via x402. OpenAI-compatible. Settled in USDC on Base & Solana.

Real-time SOL/USD price from Pyth Network oracle with confidence interval. Sub-second freshness. -- reliability 65.58464813232422/100 per Paygent Discover

Buy gift cards, eSIMs, mobile top-ups and prepaid cards with USDC via x402. 10,000+ brands across 180+ countries. No API keys or Bitrefill account required — wallet payment and optional SIWX sign-in only.

USD Coin -- reliability 75.7822036743164/100 per Paygent Discover

The trust layer for AI agents — 250+ independently tested data capabilities across 27 countries. Execute capabilities via REST, MCP, A2A, or x402 micropayments. Every call returns an audit record with cryptographic chain hashing.

Pay-per-request blockchain RPC access using the x402 payment protocol. Authenticate with SIWX (Sign-In with X), pay with stablecoin micropayments, and make JSON-RPC calls to 140+ blockchain networks.

Instant weather data by city name — no API keys, no geocoding setup, no rate limits. Current conditions and daily forecasts for any city worldwide in structured JSON, ready for agent consumption.

Search 19+ platforms in a single API call: Reddit, Hacker News, GitHub, Stack Overflow, arXiv, npm, PyPI, X/Twitter, YouTube, Product Hunt, Dev.to, Qiita, Zenn, Semantic Scholar, GitLab, Hashnode, Lobsters, Lemmy, and x402 Bazaar. Includes Deep Research with AI synthesis. Accepts USDC payments on Base and Solana via x402 protocol.

Multi-source aggregated FX Best Bid/Ask from multiple institutional LPs. 62-88% tighter spreads than any single source. Real-time tick data with quality metadata. AI agent API for forex trading, portfolio dashboards, price comparison.

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Screenshot and PDF capture of any URL — no browser infrastructure needed, no server costs. Pay per capture.

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List all chains supported by LI.FI bridge aggregator.

Try x402 payments against a live merchant today. Get 100% of your payment refunded.

Crypto funding-rate extremes screener: scans all 17 perpetual futures markets (BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT/HYPE). Uses z-score (30-day baseline) to identify statistically extreme funding: |z|≥2 = extreme, |z|≥3 = critical. Returns only assets clearing the threshold. Real-time from Kronos market_signals (OKX data). Pay-per-call via x402.

Cross-venue funding arbitrage signal from real-time 8h-equivalent funding rates on Binance, OKX, Bybit, KuCoin, Bitget and Hyperliquid. Returns the gross and net-of-fees spread between the best short venue and best long venue (gross_spread_bps, net_spread_bps after a 20 bps round-trip fee estimate), spread_8h_normalized, venues_count, per-venue rates with funding_interval_hours, annualized_pct,...

Send a question about longevity, aging, or lifespan science. Returns a request ID to poll for the AI-generated answer from Aubrai, VitaDAO's decentralized co-scientist. -- reliability 66.15487670898438/100 per Paygent Discover

Send an HPKE-encrypted prompt to the Aubrai chat agent running inside an attested private enclave. Only the enclave can decrypt your message. -- reliability 66.15487670898438/100 per Paygent Discover

Send a question about longevity, aging, or lifespan science. Returns a request ID to poll for the AI-generated answer from Aubrai, VitaDAO's decentralized co-scientist.

Agentic checkout for Clash of Coins

Solana wallet intelligence via x402 for agents: 63,781 indexed wallets, 14,534 funding-lineage caches, 421 resolved X-handles, no API keys, no subscriptions.

Crypto market tick — BTC, ETH, SOL live price + 24h change, Fear & Greed index, and a deterministic regime verdict (RISK_ON / DRIFT_UP / CHOP / DRIFT_DOWN / RISK_OFF) in ONE $0.05 call. Built for agent loops that need a cheap market pulse every cycle; escalate to /api/scan/crypto ($2) for the institutional deep scan with technicals, derivatives and a directional call. 60s freshness, no LLM in t...

Global gaming intelligence API. AI-synthesized meta analysis, tier lists, gaming hardware recommendations, PC specs optimization, esports match predictions, TCG card valuations (MTG, Pokémon, Yu-Gi-Oh), game deal aggregation, subscription value analysis, and gaming setup guides. Covers 1,000+ games, all major platforms, and global esports tournaments. Fanatical, Humble Bundle, TCGPlayer/CardMar...

Biomarker interpretation, supplement evidence, personalized protocols, clinical trials, Blue Zone research, epigenetic clocks, longevity drugs, and global clinic guides. PubMed + WHO + ClinicalTrials.gov. x402 micropayments on Base.

Global football/soccer betting intelligence API — match previews, Asian handicap, live in-play intel, value bets, accumulators, league stats, player intelligence, corner/booking markets, clean sheet probability, and transfer watch. 50+ leagues across 6 continents. All endpoints require x402 payment (USDC on Base mainnet) via the PAYMENT-SIGNATURE header.

Real-time government procurement intelligence API. US federal contracts, EU tenders, UK contracts, development bank procurement. Pay-per-query via x402.

Global herbal medicine and botanical intelligence API. PubMed-grounded herb profiles, drug-herb interaction checker, traditional medicine system guides (Ayurveda, TCM, Amazonian, African), herbal remedy builder, skin/cosmetic botanical analysis, cannabis strain intelligence, herbal practitioner finder, and ingredient safety checker. Covers Ayurvedic, TCM, Western herbalism, Indigenous, and inte...

Salary benchmarks, remote compliance, EOR cost models, work visa pathways, skills demand, talent market analysis, executive compensation, and layoff tracking for 60+ countries. x402 micropayments on Base.

Real-time water intelligence API. Groundwater levels, streamflow, drought status, water quality, aquifer analysis, flood risk, and global water stress — pay-per-query via x402.

BuildPulse — home construction and renovation intelligence: project cost estimates, contractor vetting, permit requirements, material pricing, ROI projections, and inspection checklists. Global coverage — jurisdiction-aware permits, codes, and costs (US and Canada deepest; UK/AU equivalents handled).

Global genealogy and historical archive intelligence API. Full-text search across Chronicling America (1770–1963 US newspapers), Library of Congress, Trove (Australia), British Newspaper Archive, Europeana, and 30+ global archive collections. AI-synthesized person research, obituary search, immigration/passenger record analysis, military record discovery, historical business research, timeline ...

Practical crypto intelligence — DeFi yield and strategy, exchange comparisons, security frameworks, tax guidance, and onboarding for humans and their agents.

Legislative intelligence, RWA market tracking, institutional monitoring, and onboarding guidance for the shift from traditional to onchain finance. x402 micropayment API.

SafePulse — product safety intelligence: CPSC, FDA, USDA FSIS, NHTSA recalls; EU RAPEX; home safety scores; child/vehicle safety ratings; food safety alerts worldwide.

12 endpoints scanning arbitrage opportunities across DeFi yield spreads, DEX price differentials, perpetual funding rates, sports surebets, ETF/NAV gaps, and commodity regional pricing. Execution-tier calldata for AI agents. Payments via x402 protocol on Base mainnet (USDC $0.05–$0.20 per query). Part of PulseNetwork.

Startup funding intelligence API. VC round data, investor matching, pitch deck scoring, term sheet decoding, cap table modeling, global accelerator directory, market sizing, legal formation, comparable deals, and due diligence prep. All endpoints require x402 payment (USDC on Base mainnet) via the PAYMENT-SIGNATURE header.

Pharmaceutical pipeline and clinical trial intelligence API. Synthesizes 400,000+ registered trials from ClinicalTrials.gov with FDA OpenFDA, PubMed, and real-time news. All endpoints require x402 payment (USDC on Base mainnet) via the PAYMENT-SIGNATURE header.

CVE briefs, vulnerability scanning, CISA KEV, threat intelligence, ransomware tracking, compliance gap analysis, dark web monitoring, and attack surface assessment. x402 micropayments on Base.

Alternative economic intelligence API covering 190+ countries. Combines World Bank Open Data, IMF Datamapper forecasts, satellite nighttime lights research, and AIS shipping signals to produce institutional-grade sovereign intelligence. All endpoints require x402 payment (USDC on Base mainnet) via the PAYMENT-SIGNATURE header.

Global biodiversity intelligence API. GBIF + IUCN + eBird + iNaturalist data synthesis. Species profiles, IUCN conservation status, sighting reports, birding hotspots, migration tracking, endangered species alerts, invasive species detection, marine biodiversity, and field identification. Serves naturalists, wildlife biologists, birdwatchers, conservation orgs, educators, and eco-travel agents....

Global pet health and care intelligence API. AI-synthesized veterinary symptom triage, breed selection guides, pet nutrition analysis, medication safety (drug interactions, toxin exposure), senior pet care, travel preparation, insurance comparison, and cost estimation. Backed by current veterinary literature via real-time search. Serves pet owners, veterinary clinics, and pet-focused AI agents ...

Global remittance intelligence API covering the $700B+ annual global remittance market. 9 endpoints: corridor analysis (200+ corridors), provider comparison with true total cost (fee + FX markup), live ECB mid-market rate vs markup analysis, receive-country guides, mobile money ecosystem (M-Pesa/GCash/bKash/MTN MoMo/Wave), compliance and KYC intelligence, industry news, diaspora community intel...

Global tax intelligence API. AI-synthesized tax guidance for 195 countries: income tax rates, VAT/GST, corporate tax, capital gains, crypto tax treatment, expat tax obligations, digital nomad tax structures, tax treaty analysis, entity structure comparison, and cross-border compliance. Tax software, crypto tax tools (Koinly, TaxBit), and expat tax service affiliates included. All endpoints supp...

Global trade intelligence API. AI-synthesized tariff rates, HS code classification, FTA duty analysis, landed cost calculation, trade compliance guidance, sanctions screening, market entry analysis, and supply chain news. Covers 195 countries with real-time trade data. Serves importers, exporters, sourcing teams, freight brokers, and trade compliance officers. Flexport, Freightos, Payoneer, and...

Personal finance intelligence API. 14 endpoints grounded in live FRED rate data and official FDIC Call Report data — financial health, retirement, debt, credit cards, mortgage, Social Security, tax optimization, Roth vs Traditional, emergency fund, inherited IRA, debt negotiation, Trump Account (IRC §530A) eligibility/strategy/rules, bank-safety/FDIC Call Report checks, and financial advisor in...

Real-time macro intelligence for forex and CFD traders. All endpoints require x402 payment (USDC on Base mainnet) via the PAYMENT-SIGNATURE header.