2s

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://2s.io/api

• GET/stocks/patents$0.0025USPTO patent activity associated with a public company. Pass ticker and optionally a from/to window (YYYY-MM-DD; defaults to ~2 years); returns each record with the application number, patent number (when granted), the filing company name(s), description/title, patent type, filing status, filing and publication dates, and a document URL. A company-level innovation/R&D signal (distinct from our keyword patent search). Data by Finnhub.
• GET/crypto/address-history$0.0036Transaction history for an Ethereum address (via Etherscan V2). Returns normal transactions newest-first: hash, block, timestamp, from/to, value (wei + ETH), gas used, gas price, decoded method id + function name, error flag, and any contract created. Paginate with page + offset; bound with startBlock/endBlock. Defaults to Ethereum mainnet; other EVM chains are reachable by chainId where upstream coverage allows. Net-new vs crypto.tx (single-hash receipt).
• GET/calendar/earnings$0.0025Earnings release calendar — which US-listed companies report earnings in a date window, with expected and (once reported) actual EPS and revenue, and the time of day (before/after market). Pass a from/to window (YYYY-MM-DD; defaults to the next 14 days) and optionally a ticker to filter to one company. Agents cannot recall future earnings dates — this is the schedule. Data by Finnhub.
• GET/research/author$0.003Resolve a researcher by ORCID iD. Pass orcid (e.g. 0000-0002-1825-0097, with or without the https://orcid.org/ prefix). Returns the researcher name, affiliations (employments and educations with organization, role, department, years, and a current flag), a total works count, and a works summary (title, type, year, DOI when present). Data: ORCID Public API, free and keyless; per-record visibility is set by the record holder. The canonical author key in scholarly metadata — pair with /api/papers/search, /api/paper/doi-lookup, and /api/research/org (ROR institutions). Use to verify an author identity, current institution, or publication record before citing.
• GET/license/real-estate$0.0072Verify US real-estate licenses (brokers, sales agents, broker companies). Currently supported state: TX (Texas Real Estate Commission license holders). Search by name (license holder, partial), licenseNumber (exact), licenseType (partial, e.g. "Broker", "Sales Agent"), status (e.g. "Active"). Each license: type, number, holder name, status, original license date, expiration date, and the related supervising broker (type/number/name) where applicable. Agent/broker due-diligence and KYC. Siblings: /api/license/medical, /api/license/broker, /api/license/trades. Official state open data.
• GET/weather/current$0.003Current weather conditions for any coordinate worldwide. Pass lat + lon (and optional units=metric|imperial, default metric). Returns temperature, feels-like, humidity, precipitation (rain/snow), cloud cover, sea-level pressure, wind speed/direction/gusts, day/night flag, and a human-readable conditions label from the WMO weather code — with local time + timezone. Global coverage (not just US — for US-only NWS data see weather.zip / weather.forecast). Source: Open-Meteo (CC BY 4.0).
• GET/search/ai$0.045AI web search optimized for agents. Returns ranked results with the relevant extracted content of each page (not just a link + blurb), plus a relevance score. topic=news for recent reporting. Distinct from search.web (raw SERP) — this returns clean, LLM-ready page content per result.
• GET/business/id-resolve$0.012Resolve a legal entity across identifier systems. Give exactly one of name, lei, cik, or ticker and get the others back: LEI (GLEIF), SEC CIK, ticker(s) with exchange, jurisdiction, and a canonical entity name. This is the COMPANY-ENTITY resolver: it joins the legal entity (LEI) to its SEC filer identity (CIK/ticker) and back. For SECURITIES (FIGI, ISIN, share-class identifiers) use finance.security-resolve instead -- this one deliberately stays at the legal-entity layer. Composes SEC company_tickers_exchange (public domain) + GLEIF (CC0). The SEC<->GLEIF link is by name-match when you anchor on ticker/cik (best-effort, flagged via bridge + leiName); a supplied LEI is authoritative. Per-source status is returned so a partial resolve is explicit. No CUSIP/SEDOL.
• GET/dns/lookup$0.0025Resolve a hostname over public DNS and return parsed records. Query: host (required FQDN), types (comma-separated: A,AAAA,MX,TXT,NS,CAA,SRV,CNAME,PTR,SOA — default A,AAAA,MX,TXT,NS), resolver (cloudflare|google|quad9|opendns, optional). Returns one normalized JSON shape per record type with per-type error pass-through. Reserved/local TLDs (.local, .internal, .invalid, .test, localhost) are rejected. 4s per-query timeout.
• GET/finance/figi-search$0.0036Free-text search for securities across global exchanges via OpenFIGI. Give a query (company name, ticker, description) and optionally narrow by exchCode (e.g. US), securityType, or marketSector (Equity, Corp, Govt, Mtge, Muni, Pfd, Comdty, Index, Curncy). Returns relevance-ranked matches with FIGI, composite/share-class FIGI, name, ticker, exchange, security type, market sector, and description, plus a `next` cursor for paging (pass it back as start). Free, open symbology (Bloomberg OpenFIGI). Distinct from finance.figi (exact identifier → FIGI): this is discovery by name/keyword.
• GET/travel/visa$0.0025Look up the visa requirement for a traveler with a given passport visiting a destination country. Pass passport and destination as ISO-3166 alpha-3, alpha-2, or country name (e.g. passport=USA destination=Japan). Returns the requirement category — 'visa free' (with visaFreeDays, the allowed days), 'visa on arrival', 'e-visa', 'eta' (electronic travel authorization), 'visa required' (must arrange in advance), or 'no admission' — plus a plain-language description and the resolved passport/destination names. Data from the community-maintained Passport Index dataset (MIT). Informational only — not official immigration advice; verify with the destination's embassy before travel.
• GET/crypto/balances$0.0036Live native + ERC-20 token balances for an EVM address (Base, Ethereum, Polygon, Arbitrum, Optimism; keyless). Returns the native-coin balance and, for any ERC-20 contract addresses you pass, the symbol, decimals, raw and human-formatted balance — fetched in one multicall. For wallet dashboards, treasury checks, and agent payment/settlement flows.
• GET/gov/congress-hearing$0.003Look up or list US Congressional hearings via Congress.gov. Pass congress + chamber + jacketNumber to fetch a single hearing with full detail (title, dates, committee, transcripts/recordings if available). Or filter list by congress + chamber, with optional date range. Hearings cover committee testimony from the executive branch, subject experts, and stakeholders — primary-source material for oversight + policy research.
• GET/word/define$0.003English dictionary lookup via dictionaryapi.dev (Wiktionary-sourced). Returns full entries with IPA phonetic transcription(s), audio pronunciation URLs, and meanings grouped by part of speech. Each meaning carries definitions with usage examples and per-definition synonyms + antonyms. CC BY-SA 3.0/4.0 — attribute when redistributing. Useful for vocabulary agents, writing assistants, language-learning tools.
• GET/stocks/peers$0.0025Peer companies for a US-listed ticker — other companies in the same sector and sub-industry, useful for comparables, relative valuation, and screening. Pass ticker (optionally grouping to control how peers are grouped); returns a ranked list of peer ticker symbols (the input symbol is usually first). Data by Finnhub.
• GET/bio/species$0.0036Resolve any organism by scientific or common name to the GBIF taxonomic backbone — the canonical free reference for life on Earth. Returns the accepted scientific name + canonical name, taxonomic rank and status, the match type/confidence, the full classification (kingdom → phylum → class → order → family → genus → species), up to 8 English vernacular (common) names, the count of recorded occurrences worldwide, and the GBIF species URL. Biodiversity, ecology, education, and as a taxonomy normalizer for other pipelines. Fuzzy-matches misspellings. CC-BY GBIF data.
• GET/news/hn-search$0.003Full-text search across all of Hacker News (via the Algolia HN API). Search stories or comments by keyword, sorted by relevance or by date (newest first). Filter by tags (story/comment/ask_hn/show_hn/poll) and by author. Each hit: title, URL, author, points, comment count, story/comment text, created time, and canonical HN URL. Net-new vs news.hn-top (curated feeds) and news.search (general news).
• GET/econ/fred-releases$0.003The US economic-data release CALENDAR — when official economic reports are published, from the Federal Reserve's FRED. Returns upcoming release dates (date, release name, FRED release id), starting from `from` (default today), ascending. Filter by name to find a specific report's schedule (e.g. name="Consumer Price Index" → the next CPI dates; "Employment Situation" → jobs report; "Gross Domestic Product"; "FOMC"), or by releaseId. Free, public-domain (FRED). Future release dates an LLM cannot possibly know — essential for trading, scheduling, and macro-monitoring agents that need to act around data drops. Pair with econ.fred to pull the actual numbers once a release is out.
• GET/predict/search$0.012Cross-venue prediction-market keyword search across Polymarket, Kalshi, and Limitless Exchange in one call. Pass q (required); filter by status (open/closed) and cap per-venue with limit. Each hit is tagged with its venue and returns the question, live YES/NO price (0-1 implied probability), USD volume, close date, and the venue URL — for finding the same real-world question wherever it trades. Read-only, keyless.
• GET/medical/icd10$0.0025Verify and search ICD-10-CM diagnosis codes against the official US code set (FY2026, ~98k entries). Pass code (with or without the dot, e.g. E11.9 or E119) to confirm the code exists and list its more-specific child codes, or q to keyword-search code descriptions (e.g. "type 2 diabetes neuropathy"). Optional billable_only=true restricts results to codes valid for claim submission; limit caps results (1-50, default 10). Returns a verified flag, the exact match if any, and matched codes with billable status plus short and long descriptions. Data: CMS/NCHS ICD-10-CM (public domain), refreshed each US fiscal year. Use to confirm diagnosis codes are real and current before placing them in claims, prior authorizations, or clinical documents.
• GET/crypto/contract$0.0045Decode an EVM smart contract. Pass chain (ethereum, base, polygon, arbitrum, optimism, bsc, avalanche) + address; returns whether the contract is source-verified (Sourcify), its name/compiler/language, whether it is a proxy and its implementation address, and human-readable function and event signatures from the ABI. Optionally pass selector (a 0x 4-byte function selector) to decode what it calls — resolved from the contract's own ABI when verified, otherwise from the public 4byte directory. Pairs with crypto.tx (which gives a `to` address + calldata): turn an opaque contract + selector into "what is this and what does it do." Free, keyless.
• GET/github/search-code$0.0025Search code across GitHub with the code-search syntax (e.g. 'defineEndpoint repo:AlleyFord/2s' or 'addEventListener language:js'). Returns total match count + file name, path, repository, and URL for each hit. Read-only; no caller key needed.
• GET/weather/forecast$0.0036Official US weather forecast for a coordinate (US land + territories). Pass lat + lon. Returns the National Weather Service forecast as a list of periods — by default ~7 days of day/night periods; pass hourly=true for an hour-by-hour forecast. Each period gives the temperature + unit, wind speed/direction, chance of precipitation, and a short + detailed forecast, plus the resolved city/state and issuing office. Source: US National Weather Service (api.weather.gov), public domain. For active warnings use weather.alerts.
• GET/crypto/cex-ticker$0.0036Centralized-exchange 24h ticker for a spot pair (e.g. BTC-USD), free/keyless: current price, best bid/ask, 24h open/high/low, 24h + 30d volume, and 24h percent change. Real CEX spot quote — distinct from crypto.token-price (CoinGecko aggregate).
• GET/business/no-companies$0.0036Official Norwegian company registry search (Brønnøysund Enhetsregisteret). Search by company name. Each result: organisation number, name, organisation form, primary industry (NACE), employee count, registration date, website, bankruptcy and dissolution flags, and business address. Free, NLOD/CC BY 4.0. The authoritative NO company lookup — complements business.uk-companies and business.lei.

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