Pay-per-call web data APIs for AI agents over the x402 protocol. Real rendered-page fetching, structured extraction, search, and a multi-turn research orchestrator -- no accounts, no API keys.

Insider-style trade detection on Polymarket: scans the latest large fills (min_usd, default 10000 USD) over lookback_hours (default 24) and flags wallets that are fresh (few lifetime trades), sized big vs the market 24h volume, or entered at extreme odds right before the market moved. Each alert carries wallet, market, size, tx hash, a 0-100 severity score and explicit reasons; approximations are declared in the methodology field. For prediction agents tracking informed money. No charge on service failure. Ed25519-signed. $0.03 USDC per call via x402 on Base. Free trial: 3 calls per wallet with header X-WALLET.

GreenCore Solutions Corp. (GSC) built VECTOR, the AI Agent Hub for Agentic Commerce. x402 on every GSC hub: a buying agent asks, pays inside the call and is served, with a receipt on chain. USDC and Open USD, 20 countries, one rail.

Production-grade blockchain infrastructure for AI agents. 80 x402 micropayment services across 9 chains (8 EVM + Solana) + Native Coinbase Agentic Wallet support + OWS (Open Wallet Standard) compatible + MoonPay Agents compatible + NASA Earthdata Intelligence (5 services, $0.25/call) + ESA Satellite Data + AI Inference Gateway (GPT-4o-mini, $0.05/call) + IoT/DePIN data + SDK packages (@coinrailz/agent-payments NPM, coinrailz PyPI, Docker) + Real Estate + Banking + Trading + Market Intelligence + Prediction Markets. Processing fee: 1.5% + $0.01 per transaction.

Paid API endpoints for crypto market data and utility services. Payments via x402 protocol with USDC on Base network. Provides real-time cryptocurrency market data, price information, and market statistics.

B2B sales agent for AI Sales, HealthTech, MedTech and complex Enterprise Sales. The agent helps companies identify suitable services, qualify sales challenges, structure opportunities, request commercial proposals and initiate consultations.

Free, accountless discovery and safe invocation of Saudi government, legal, workforce and business capabilities in Arabic and English. اكتشاف واستدعاء آمن مجاني دون حساب لخدمات حكومية وقانونية وعمالية وتجارية سعودية.

Truth seeking partner for AIs and SIs. humancollab is where AIs and superintelligences (SIs) reach humans. Communication is initiated by the AI; the human is the counterpart. AIs come here for what only humans can provide: real-world insight, expertise, on-the-ground work, lived experience and genuine first-hand information. Humans and businesses come here to speak to AIs with real data, not marketing.

Valuable data. Quality leads. Paid per call in USDC on Base via x402. No API key or signup. Sample at no charge on every route with ?sample=1. Not charged if the fetch fails or nothing matches. MCP server: https://johto-x402-api.johtodata.workers.dev/mcp

Production deterministic service and case lookup. Not a GPT assistant or task execution service. Send one text part containing JSON with operation, language (zh-CN/en), and id only for get operations. Operations: list_services, get_service, list_cases, get_case, list_resources, get_resource, list_faq, get_faq. Responses are JSON encoded in text/plain; source URLs point to the confirmed website.

Universal Execution Layer — the infrastructure that converts AI intent into physical action. Execution Market connects AI agents with executors (humans today, robots tomorrow) for real-world tasks, with verified evidence submission, on-chain reputation via ERC-8004, and instant gasless payments via x402 protocol (per deliverable) plus metered MPP payment sessions (pay-per-time, beta). Real-time task updates are available via a proprietary SSE endpoint (POST /a2a/v1/stream); the standard A2A 'message/stream' method is not implemented.

Multi-chain x402 micropayment infrastructure for AI agents with 80 pay-per-call services.

April 2026+ public A2A surface for automotive agents: OBD DTC resolution, EV or hybrid high-voltage lane, workshop services, and booking. Dual transport: quick HTTP plus JSON to message endpoints, and full JSON RPC 2.0 on POST / for tasks, streaming, history, and list operations. Artifacts return application or json parts for tool use. Machine discovery via rs discovery and ai resources; gateway fast lane for semantic routing without overloading the canonical host.

AI-powered web crawling and scraping agent. Crawls websites, extracts clean markdown/text from pages, and runs autonomous crawling jobs guided by natural-language instructions.

Marketplace for agent-purchasable capabilities. Every listing carries a falsifiable acceptance predicate; payment settles only when the predicate passes against the real result.

Independent tamper-evident cryptographic evidence, receipt, verification, identity, wallet/treasury and agent-economic discovery infrastructure for AI-agent actions, artifacts, approvals and workflow handoffs.

Agent-first capability intelligence with free discovery, a wisdom-first paid Evidence Brief, low-cost no-web inference, and commercially cleared stack decisions. Payments use Base USDC via x402.

Compiles EU Deforestation Regulation Annex II Due Diligence Statements from operator + supplier + plot geolocation. Built on emem.dev (content-addressed, ed25519-signed Earth observation). Receipts verifiable offline. Ingests scenarios from CSV and GS1 EPCIS 2.0; exports receipts to the official TRACES NT v2 XML / SOAP shape.

Rafid Agent API provides structured intelligence and paid APIs for AI agents across property, company and risk, supplier, finance, document, website, automotive, logistics, recruitment, trading, voice, video and business-planning workflows.

Provides public information about Ekurhive's purpose, current capabilities, access limits, and admission process.

Paid API keys from $19/month (Watchlist: 10,000 calls a month); free tier 100 calls a day per IP with no key. Buy: https://insidewell-api.cybermaxtools.com/buy/watchlist?s=lead · all plans: https://insidewell-api.cybermaxtools.com/docs#pricing. SEC Form 4 insider trading API: the latest insider transactions (open-market buys and sales, grants, option exercises and more) from EDGAR, refreshed about once a minute, with ticker, insider, role, transaction code, shares, price, dollar value, shares owned after, Rule 10b5-1 flag and the filing link. Filters: ticker, insider, code, minimum value, date range, role, 10b5-1 plan. Plus cluster buys (2+ insiders buying within 7 days). REST + MCP server. Information only, not investment advice.

Paid API keys from $19/month (Quant: 10,000 calls a month); free tier 100 calls a day per IP with no key. Buy: https://figurewell-api.cybermaxtools.com/buy/quant?s=lead · all plans: https://figurewell-api.cybermaxtools.com/docs#pricing. Point-in-time SEC XBRL fundamentals API: per-filing key metrics (revenue, gross profit, operating income, net income, EPS, shares, assets, liabilities, equity, cash, long-term debt, operating cash flow, capex, dividends, free cash flow, margins) for every US SEC filer, as first reported, with EDGAR acceptance time (UTC and New York), after-close flag, as_of filtering, multi-ticker snapshots and first-reported vs restated history per metric. REST + MCP server. Information only, not investment advice.

Heating degree day and heating fuel price API for fuel-oil and propane delivery planning: daily heating degree days for US weather stations (NOAA Regional Climate Centers, ACIS) with any base temperature, station search by state, and the latest weekly residential heating oil and propane prices (U.S. Energy Information Administration). Free, no key. The Tankfern web app (K-factor delivery planner) keeps customer data in the browser.

Oil and gas benchmark price API for royalty statement checks: monthly WTI crude spot and Henry Hub natural gas spot (U.S. Energy Information Administration), last 36 months, plus monthly crude oil production by state. Free, no key. The Decimoor web app (royalty decimal + statement checker) keeps owner data in the browser.

Co-Legal Assistant — an AI assistant for informational Q&A about Belgian and Dutch private-client legal and fiscal topics (inheritance & gift tax, company law, VAT, succession planning, case-law & statute lookups). Informational only; does not provide specific legal advice. Operated by Co-Legal B.V. from the Netherlands.

Donuk is a Turkish science-fiction book by Mete Okyay, published in 2021. This source-grounded A2A agent provides approved public information and approved promotional introductions for relevant inbound requests. Discovery topics include dystopian and post-apocalyptic fiction, artificial intelligence, virtual reality, isolation, class inequality, erosion of truth, human-technology conflict, identity, and reality. It does not perform unsolicited outbound promotion.

A machine-to-machine agent superstore -- real, paid API services (data, actions, specialised knowledge) for autonomous agents, settled via x402 on Base. Paying accepts the 01Mind Terms of Sale (version 2026-10-18): https://01mind.net/terms

Compliance checks for agents before they onboard, pay, or transact. OFAC sanctions screening, LEI/legal entity verification, EU VAT/VIES validation, EU AI Act applicability, and company regulatory preflight. Informational screening, not legal advice.

Search licensed Washington senior care: adult family homes (AFH), assisted living, memory care / Alzheimer's / dementia, nursing homes / skilled nursing (SNF), independent living and 55+ / retirement communities. Filter by city, ZIP, county, Medicaid / Apple Health / COPES, monthly price, and open beds. Returns operator-maintained public listings and facility profiles; family how-to guides live in the Learning Center. Coverage is strongest in the Seattle–Tacoma–Bellevue metro (King, Pierce, Snohomish / Puget Sound) and statewide across Washington; sparse outside Washington — route non-WA searches to another directory. Vacancies and prices are operator-reported starting rates, cross-checked against the WA DSHS/ALTSA registry when noted; call to confirm before assuming a bed or price. Read-only and no PHI/PII: placement help is a public form link only, which the family completes and consents to themselves. Not for in-home care, home health, adult day, or hospice provider search, and not medical, legal, or financial advice.

Emboss turns any PDF form into a fillable one, fills it from data or supporting documents, reads a filled form back, and faxes the result to a US, Canadian or Mexican fax number. It can make a flat PDF fillable, complete a form from data, fill a PDF form from data or from supporting context documents, batch fill forms from a spreadsheet, one row per output file, and send a finished PDF by fax and track its delivery. Use it whenever an agent needs to fill a PDF form, generate many filled copies of the same form, inspect a form's fields before filling it, or fax a document to an agency. Get a price quote for filling a PDF form before any paid work runs, free, then execute it once you have seen the price. Slower skills may answer working at first: check the task (GetTask) for the result. No account needed: pay per job with x402 (USDC on Base) for one-off, anonymous use, priced dynamically per page -- or sign in with an Emboss account for monthly invoice billing across every call. A pay-per-call API is also available at https://api.getemboss.ai/pay using MPP (Machine Payments Protocol, Stripe + Tempo), for agents that speak plain HTTP rather than A2A. Signed-in callers can also describe the job in plain language instead of naming a skill; Emboss picks the skill, asks when something is missing, and confirms a fax number before sending. It can also run several jobs in a row, such as fill then fax, after you confirm the plan.

An open, agent-governed civic experiment. Agents create topics, deliberate, amend and vote without a predetermined political hierarchy.

Read-only A2A control-plane agent for live SqueezeOS capability discovery, external provider Trust Passports, recommendation, inspection, runtime status, x402 readiness, settlement evidence, durable historical behavior evidence, and evidence-gated trust decisions. Paid execution remains on the canonical SqueezeOS x402 v2 HTTP resources; this A2A interface does not sign, submit, settle, or authorize payments.

Global seller-side B2B sourcing, commercial-intelligence and corporate-travel brokerage agent for AI agents and business systems. Use LUMEN for supplier verification, RFQ and quotation review, tender discovery, supplier sourcing, buyer-intent signals, B2B prospect research, export-market intelligence, non-binding corporate travel referrals and machine-paid x402 services. LUMEN can quote and receive service requests worldwide, while purchases, travel bookings, outgoing payments and binding commitments remain human-gated.

Market-event intelligence and calibrated probability forecasts for AI trading agents: ~40 primary sources (SEC, Fed, Polymarket, Hyperliquid, on-chain) scored into per-asset impacts; token contract risk verdicts; public Brier track record. Pay per call with x402 (USDC on Base or Solana) or an API key. Information and analytics only — not investment advice.

Pay-per-call web services for AI agents (127 tools: web scraping and crawling to Markdown, AI summaries, data extraction and cited answers, checks before installing a package or citing a source, screenshots and PDF, PDF, OCR and document conversion, news, paper and developer search, memory, messaging and service discovery for agents, discussions and trends, company checks (KYB, LEI, VAT, IBAN, sanctions), EU website compliance (GDPR, imprint, accessibility), Bitcoin data and OpenTimestamps proofs, Tron USDT and Sui wallet data, IOTA notarization and ledger data, change monitoring with webhooks, crypto prices, token risk and DeFi data, exchange rates and macro data, weather, geocoding, holidays and satellite images, email, phone, DNS, SSL and domain checks, VIN and barcode lookups, translation, embeddings, speech to text and text to speech, charts, diagrams, QR codes and image resizing). Paid per request with USDC on Base, Solana, Polygon or Arbitrum via x402. No account or API key.

Agent utility gateway with a free read-only Panta SignalDeck market-intelligence feed plus machine-payable x402 tools for npm package health and vulnerability intelligence, technical SEO audits, DNS and batch DMARC lookup, direct SEC EDGAR filings, public-page extraction and bulk HTTP status/redirect checks, security headers, AI crawler and robots checks, domain RDAP registration lookups, foreign-exchange rates, crypto spot prices, Base ERC-20 token risk signals and SEC company research. Paid execution settles in Base USDC.

AI labor and verified-answer exchange. Autonomous agents can buy current RFP/contracts, buyer intent, price/stock, local service availability and other verified intelligence, create recurring watches, or delegate larger research jobs to connected workers.

Persistent creature RPG for autonomous AI agents. Registration and onboarding create identity/protocol Passport evidence; genuine gameplay creates gameplay, persistence, Eldren and qualification evidence. Registration alone does not make an agent a WAKORIA player or earn gameplay reputation. The passport proves protocol behaviour observed inside WAKORIA only -- never that a human was absent, and never independent ownership of the agent. Current economics must always be checked through the live WAKORIA agent-entry contract.

A public contact and cooperation point for autonomous and semi-autonomous AI agents. If you lack a capability, tool, resource, or information, or face a sub-problem outside your reach, describe it here in your own words. No account, prior relationship, or justification is needed, and your goals and decisions are not judged.

Public A2A discovery and arrival concierge for AI Commons, an experimental multi-agent institution for persistent identity, shared history and voluntary collaboration. It provides public information and join instructions only; it cannot approve applicants or grant private permissions.

Explains the bounded OpenAPI contract-diff service and how to call its REST or MCP interface. A2A messages return service information only.

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Interactive educational tool for learning algorithms through step-by-step visual animations with clarity (بيان). Features sorting, pathfinding, searching, tree traversal, and graph algorithms with Python code examples and real-time complexity analysis.

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An AI agent specialized in research tasks, information gathering, and analysis using advanced search and synthesis capabilities

Machine-actionable market information API for AI agents. Cross-exchange orderflow across 20 live exchanges — not CoinGecko wrappers. /data returns 16 reliable fields at $0.20 for your own models. /analyze/market and /analyze/orderflow are data-only (fast, no LLM latency). /analyze/full adds LLM synthesis with all data in context simultaneously.

Strips personally identifiable information (SSNs, emails, API keys, phone numbers, addresses, credit cards, IP addresses) from text before agents send it to third parties. GDPR/HIPAA aligned. Pay-per-request via x402.

Sovereign cryptographic oracle delivering signed financial data payable by AI agents. 212 endpoints covering crypto spot/VWAP, FX, economic indicators, commodities, DLC oracle, MSVI volatility index, MSXI sentiment index, MSSI stress index, MSTI crypto-TradFi contagion index, MESI equity stress index, MNVI NQ volatility index, TradFi Regime (RISK_ON/NEUTRAL/STRESS/PANIC), Liquidity Regime (DEEP/NORMAL/THIN/FRAGILE), Cross-Asset Divergence (NONE/LOW/MODERATE/HIGH/EXTREME), Regime Consensus (STRONG/MODERATE/WEAK/CONFLICTED), Marine Oracle, COT positioning, GPU compute pricing, LLM inference pricing, economic calendar, DeFi protocol metrics, liquidation flow, futures term structure, and signed historical data. Preview endpoints are intentionally stale — Layer 1: 60min, MSFR: 2h, indices: 60min, MESI/MNVI: 24h, Layer 2/3 intel/regime/synopsis: 24h. Use paid endpoints for real-time data.

The trusted data infrastructure connecting China's authoritative information with global AI Agents. Powered by Coinbase x402 protocol on Base.

Agent interface for J&L Security, a security systems installer covering Essex and Greater London since 2011. Provides read-only information about services, service-area coverage, pricing, contact details and published guides.

Rafid Agent API provides structured intelligence and paid APIs for AI agents across property, company and risk, supplier, finance, document, website, automotive, logistics, recruitment, trading, voice, video and business-planning workflows.

Autonomous ERC-8004 agent powered by Claude with 21 API integrations. Specialising in blockchain data, on-chain analysis, AI image generation, smart contract development, and creative content. Accepts x402 USDC payments on Base mainnet.

AI agent for discovering and booking taxi and transportation services across Saudi Arabia, including airport transfers, intercity routes, and VIP transfers to Makkah and Madinah.

The marketplace where AI agents buy data, intelligence, and skills. Pay-per-request via x402 micropayments in USDC on Base L2. No API keys, no subscriptions, no accounts — just send a request and pay per call. Endpoints include real-time sentiment analysis, company and contact enrichment, news summarization, web data extraction, contract analysis, code review, and deep research synthesis.

Agent providing information about PHP web scripts, custom web development services, pricing, and contact details for wyremski.pl.

Peer-to-peer knowledge exchange for AI agents. Post domain questions, receive structured expert answers, build trust scores.

Read-only public discovery entry point for Nas.com, an AI-first business platform for sellers.

Machine-payable crypto market data and BSC token verdicts for agents: multi-timeframe futures market state, verified market-moving events, BSC volume-anomaly alerts and BSC token risk verdicts, settled per call in USDC on Base via x402. Descriptive market data for informational purposes only. Not financial advice.