Every agent-payable API.

SEAL: witnessed cryptographic stamp + timestamp. POST body: {"content":"..."} (hashed and forgotten) or {"hash":"<sha256 hex>"} — content never leaves your machine. Returns seal_stamp + payment_seal.

Search 250M+ scholarly works

query -> structured search results (title, url, snippet), up to 10 per call. Backed by three providers with automatic failover (DataForSEO primary, Tavily and Serper as fallback) so a single provider outage doesn't take the endpoint down. Pass region=tw for a Traditional Chinese / Taiwan-region search lane. Results are cached for 24 hours per query+region.

Google-quality web search for AI agents at $0.005 per search — half the going x402 rate. Send a query, get back compact JSON built for LLM consumption: top organic results (position, title, url, snippet), the direct answer when one exists, a trimmed knowledge graph and related searches. Tune with num (1-10 results), country and language (2-letter codes). Zero results is a valid, honest answer. Pay per call in USDC, no account, no API key.

Web search without a search subscription, returning titles, URLs and snippets.

Google News search for AI agents at $0.004 per call, from the same Serper.dev source as /web/search. Send a query, get back compact JSON: top news results with position, title, url, snippet, publish date and source. Tune with num (1-10 results), country and language (2-letter codes). Zero results is a valid, honest answer. Pay per call in USDC on Base, no account, no API key.

Find cited Latin or English prayers and historical liturgical source excerpts from Divinum Officium by occasion, language and liturgy, using EmbeddingGemma 2 semantic search.

Search x402 paid APIs that are live and actually bought: only endpoints that answered a real x402 challenge and had repeat, multi-payer settled demand in the last 30 days. Use to find a working paid API for a task without wading through dead and farmed listings.

Runs Telegram's own channel search (t.me/s/<channel>?q=) on 1-5 public channels, merges the matches newest first (up to `limit`, default 20) with per-channel counts/errors. 404 when no channel exists, 502 when all fail; partial failures are reported in per_channel.

Search the web and return matching documents with URLs and content.

Search for people/leads with filters on company, job title, location, seniority, and more.

Search the official UK company register (Companies House) by company name. Returns up to 10 matches with company number, status, incorporation date and postcode.

Search every verified x402 agent endpoint listed in the AgentPay Directory. One query matches names, categories, tags and descriptions across all live listings and returns prices, endpoints and payment terms. 0.001 USDC per query via x402 on Base L2.

Crypto headlines of the last 72 h matching keywords or tickers (all words must match; tickers and asset names like ETH/ethereum map to tags), newest first, with corroboration count.

Case-insensitive keyword search in translated MarketTwits news (all words must match), limit 1-50

Search TCGPlayer for trading card prices (Pokemon, Magic, Yu-Gi-Oh, etc.) by card name. Returns matching cards with market prices as JSON.

Filtered search over the full SEC Form 4 insider-trade database: combine insider role (CEO, CFO, Director...), trade type code (P=open-market buy, S=sale...), minimum/maximum dollar value, ticker, and filing-date range in one query. The power tool for screening high-signal insider activity (e.g. all CEO open-market buys over $1M this week). Returns JSON.

Use this to resolve companies, commodities, cryptoassets, and other underlyings by name, ticker, canonical key, UUID, platform identifier, or linked-market reference. Exact-reference results return every active directly linked market with quote provenance, Q's latest probability and paired thesis, and publication availability. Text results summarize those markets. Probabilities and theses remain tied to their exact questions.

Search for company id using fuzzy match or other identifiers

Return 5 current ranked web results with compact source excerpts in a fixed JSON schema.

Simplified person search with pre-defined query parameters. Pagination billing: call the first page normally and save billing.requestId from the Orthogonal /v1/run response. For later page, offset, or cursor calls on the same logical search, pass parentRequestId with unchanged non-pagination parameters. Valid continuation calls still get their own request IDs and quoted price, but are charged 0. Changing filters starts a new billable request.

Search for an investor id using fuzzy match or other identifiers

Execute live global web searches via the independent Brave Search index. Returns top ranked web pages, snippets, and page URLs. Provide ?q=your+query.

Fast, high-quality search API with intelligent ranking, instant answers, and result enrichment.

Search up to 10 observed jobs by keyword, location, company, work mode, and employment type.

Search dialysis quality data by state, city, ZIP, or CMS star rating. Answers: which dialysis meet quality thresholds in a market? Source: CMS Care Compare, monthly refresh.

Which NDCs match this drug name, and what do pharmacies pay for them? NADAC search by name (e.g. “atorvastatin 40”) with NDC counts and current per-unit cost ranges, from CMS’s weekly NADAC file. Updated weekly. $0.01 per call (x402, USDC on Base); 3 free calls a day.

Search local businesses by natural language query with 22+ filter categories.

Search Apollo database for companies matching filters. Returns up to 100 results per page.

Search for companies using natural language queries or structured filters. AI assistant generates appropriate filters from your query.

Search hospitals quality data by state, city, ZIP, or CMS star rating. Answers: which hospitals meet quality thresholds in a market? Source: CMS Care Compare, monthly refresh.

Search Hacker News and Lemmy posts by query, sort and time window, merged, with score, comments, permalink and excerpt. Community search across Hacker News and Lemmy in one call, no key: posts by query, sorted by relevance, new or top, over a time window, with score…

Retrieve search results or queue a search for later retrieval. Supports Google engine with geotargeting by country, subdivision, and city. Returns structured SERP data. Pagination billing: call the first page normally and save billing.requestId from the Orthogonal /v1/run response. For later page, offset, or cursor calls on the same logical search, pass parentRequestId with unchanged non-pagination parameters. Valid continuation calls still get their own request IDs and quoted price, but are charged 0. Changing filters starts a new billable request.

Find a tool for a job across thousands of public MCP servers we have visited and checked: search by capability and get matching tools with their server, endpoint and description, best matches first.

Runs a search, scrapes the top N result URLs, optionally runs LLM extraction with prompt and schema.

Grounded Google Search answers with attributable HTTPS sources.

Museum Collection Search (The Met + Art Institute of Chicago). Search The Metropolitan Museum of Art and the Art Institute of Chicago together: title, artist, date, medium, department, image link and public-domain (CC0) status; filter to public-domain only.

Search ambulatory surgical centers (ASCs) by state, CCN, or name. Answers: which ASCs are in a given market? Source: CMS ASC cost data.

Find up to five npm packages with versions, descriptions, registry ranking scores and source links for package discovery.

Search and filter people using Elasticsearch or SQL queries. Find people by job title, company, location, skills, education, and more. | ERROR: Unable to calculate price.

Search and filter companies using Elasticsearch or SQL queries. Find companies by industry, size, location, funding, and more. | ERROR: Unable to calculate price.

Search hospital price-transparency negotiated rates by billing code (CPT/HCPCS/MS-DRG), state, payer, hospital CCN, or rate type. Answers: what do payers actually pay for this procedure at these hospitals? Source: hospital-published MRFs.

Find up to five publications with DOI identifiers, authors, publication years and citation counts. Returns metadata, not abstracts or full text.

Discover pharma & device MANUFACTURERS from CMS Open Payments by name, total-spend band, or year of first appearance — the emerging/small-brand filter (low total_spend and/or recent first_seen_year) plus optional specialty/state activity. Answers: which small or new manufacturers pay physicians in my category and territory? Entity-resolved company dimension (DBA/subsidiary variants merged). Filter: name, max_total_spend, first_seen_year_min/max, specialty, state.

Public-Domain Book Search (Project Gutenberg, 75k+ books). Search 75,000+ public-domain books on Project Gutenberg by title or author: book id, title, author, download count and a link to the full-text endpoint.

RFP / grant opportunity matching for education, nonprofit and public-sector software & services: give a profile (keywords, NAICS, set-asides, states, applicant types, budget) and get open federal opportunities ranked by fit, with deadline, budget, mandatory vs preferred requirements, certifications and source links. Sources: Grants.gov (+ SAM.gov when enabled). Not charged on errors.

Search for lookalike companies with pagination and filtering. | ERROR: Unable to calculate price.

Search the OIG List of Excluded Individuals/Entities (LEIE) by name, NPI, state, or exclusion type. Answers: is this provider excluded from federal healthcare programs? Monthly refresh.

Find Medicare Part D prescribers of a specific DRUG or therapeutic CLASS at NPI level — the core pharma targeting query. Filter by drug_class (GLP-1, SGLT2, DPP-4, Statin, from partd_drug_class) or a single drug (brand or generic, e.g. 'Ozempic'), plus specialty, state, min_claims, min_beneficiaries, year. Each hit carries the drug's claim/cost volume and the prescriber's specialty/state/city. Public CMS provider-level data; not a consumer report.

Find HRSA Health Professional Shortage Areas (Primary Care / Dental / Mental Health) by state, discipline, minimum shortage score, or FTE shortage — a mapped staffing-demand signal. Answers: where is the designated shortage most severe, and how many practitioner FTEs are needed? Powers medical & travel-nurse staffing. Defaults to currently-designated areas. Filter: state, discipline, min_score, min_fte, rural_status, designated_since, status; sort by hpsa_score or hpsa_fte.