Business Contact Enrichment services

Pay-per-request research APIs — people, companies, web search, scraping, places, social media, and contact enrichment.

WHOIS domain lookup via RDAP — registrar, creation/expiry/updated dates, nameservers, and status flags from the authoritative registry, plus an actionability score so agents can assess domain trustworthiness, ownership, or availability risk.

LinkedIn profile enrichment API for one B2B lead

Enrich any company by its domain in one call — RDAP registration age + registrar, DNS (does it run email, what website/host), and a Wikipedia company profile when available. The cheap company-intelligence read sales, research, and qualification agents make. Free public upstreams, pure margin — our entry into the data-enrichment lane (StableEnrich charges $0.02-0.05 for paid-upstream enrichment; this is the free-data company layer at a fraction).

LinkedIn profile enrichment API for one B2B lead

One call returns a complete intelligence profile for a domain — WHOIS registration, DNS records, SSL certificate, detected tech stack, and blacklist status — aggregated into a single risk-scored report so agents can fully vet a domain without orchestrating five separate lookups.

One call returns a complete intelligence profile for a domain — WHOIS registration, DNS records, SSL certificate, detected tech stack, and blacklist status — aggregated into a single risk-scored report so agents can fully vet a domain without orchestrating five separate lookups.

Search UK companies by name via Companies House — returns matches with number, status, type, incorporation date, address.

Search UK companies by name via Companies House — returns matches with number, status, type, incorporation date, address.

Full UK company profile from Companies House — registered office, SIC codes, accounts, confirmation statement, charges and insolvency status.

Search UK postcodes by free-text address or place query; returns up to 100 matching postcode records.

Find a person's email from their name and company domain

Look up entities registered to do business with the US federal government in SAM.gov. Search by ueiSAM (12-char Unique Entity ID), cageCode, or legalBusinessName (provide at least one); page with limit (1-100). Returns each entity with its UEI, CAGE code, legal and DBA name, SAM registration status and dates (registration, expiration, last update), purpose of registration, an active-exclusion flag, physical address, and business types — plus a total match count. Data: SAM.gov entity management, free and public-domain (registration core data; sensitive FOUO sections are not returned). The canonical federal counterparty identity key — pair with /api/gov/exclusions (debarment) and /api/law/sanctions-check (OFAC) for full counterparty due diligence.

Search US patent applications and grants via the USPTO Open Data Portal. Query: q (required, 2+ chars), yearFrom / yearTo (optional filing-year bounds), applicationType (optional: Utility|Design|Plant|Reissue), limit (1-100, default 10), offset (0-based, default 0). Returns { total, returned, offset, limit, hits[{ applicationNumber, title, applicationType, firstInventor, inventors[], applicants[], filingDate, effectiveFilingDate, status:{ code, description, updatedAt }, cpcSymbols[], uspcSymbol, url }] }. URLs link to USPTO Patent Center for the public file wrapper.

Search worldwide patent publications via the European Patent Office's Open Patent Services (OPS). Pass a CQL query (e.g. ti=quantum computing, in=tesla, pa=siemens, cpc=H01M, pn=EP1000000) and get matching publications with country, document number, kind code, and a combined publication number, plus the total result count. Covers EP + 100+ patent authorities worldwide — net-new vs our US-only patents.search.

Enrich a person profile from their email address

Find O*NET occupations by keyword (job title, skill, or activity). Returns ranked occupations with their SOC / O*NET-SOC code and title. CC-BY (O*NET). The "what is the occupation code for this job/skill" primitive — every other occupation.* and labor.wages call composes on the returned code.

US work-visa (H-1B and related) applications filed by a public company, sourced from Department of Labor LCA disclosures. Pass ticker and optionally a from/to window (YYYY-MM-DD; defaults to ~2 years); returns each application with job title, SOC code, visa class, case status, wage range, worksite city/state, employment dates, and case number. Use it as a hiring/headcount signal. Data by Finnhub.

USPTO 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.

Authoritative MITRE ATT&CK (Enterprise) technique lookup. Pass id (e.g. T1059 or sub-technique T1059.001) for the canonical technique — name, tactics (kill-chain phases), description, platforms, sub-technique flag + parent, mitigations, and detection guidance — or query for a keyword search returning ranked techniques. Bundled current ATT&CK matrix (~700 techniques), zero external calls. Agents cite T-numbers and tactic names that must be exact; this returns version-pinned, citeable data instead of hallucinated IDs. For threat modeling, detection engineering, and report enrichment.

Search FCC Electronic Comment Filing System (ECFS) filings for a proceeding/docket (e.g. 17-108 net neutrality, 11-42 Lifeline). Optionally filter by filer name. Returns the newest filings with the submission id, filer, type, lead bureau, received/disseminated dates, and document count. Public-domain federal data. Track FCC regulatory dockets, comments, and ex-parte filings an LLM can't recite fresh.

Search open US federal government job postings from the official USAJOBS API. Filter by keyword (title/skills), location (e.g. "Austin, Texas" or a state), and/or hiring organization; at least one is required. Returns the total matching count plus current openings with title, agency and department, location(s), salary range (USD) and pay interval, GS pay grade, work schedule, posting/close dates, and the official apply link. Keyless to the caller, public-domain (OPM). Live federal hiring data an LLM cannot recall — for job search, labor-market and workforce research.

Domain intelligence in one call — composes DNS, WHOIS/RDAP registration, and the live TLS certificate for a domain. Pass domain (e.g. example.com). Returns a summary (does it resolve, has MX, registrar, domain expiry, whether HTTPS is currently valid, days until cert expiry) plus three independent sections: dns (A/AAAA/MX/NS/TXT records), whois (registrar, registered/expires/updated dates, status codes, nameservers, DNSSEC), and tls (certificate issuer, subject, validity window, SANs, fingerprint). Each section reports found/error independently, so a domain with no HTTPS still returns DNS + WHOIS. For domain due diligence, security recon, expiry monitoring, and vendor onboarding. Individual sources: /api/dns/lookup, /api/domain/whois, /api/net/tls-cert.

One premium call returns a complete six-part domain profile — DNS records, SSL certificate, WHOIS registration, cloud fingerprint, technology stack, and security headers — each section run concurrently with graceful partial-failure handling, so agents get an entire domain workup in a single request instead of orchestrating six.