Business & Productivity APIs
Business APIs here cover company data, job listings, PDF and e-invoice tools, and form backends. Company data ranges from national registries in Brazil, the UK and Spain to commercial enrichment and email finders like Hunter. Job APIs include government boards such as USAJOBS alongside aggregators of ATS postings, and smaller tools like Web3Forms handle contact form submissions without server code.
| API | Pricing | Auth | Format | Free tier | Status |
|---|---|---|---|---|---|
AdzunaJob listing search plus salary and vacancy trend data across Adzuna's supported countries. Business & Productivity › Jobs | API key | JSON | — | Live | |
AI Dev JobsSearchable AI/ML engineering job listings with salary data across hundreds of companies. Business & Productivity › Jobs | Free | None | JSON | — | Live |
ArbeitnowLive, hourly-updated European (mostly German) job listings with company, title, and tags. Business & Productivity › Jobs | Free | None | JSON | Unlimited | Live |
ArbeitsamtSearches Germany's largest job database (Bundesagentur für Arbeit) by title, location and field. Business & Productivity › Jobs | API key | JSON | Unlimited | Live | |
Artificial Intelligence JobsLive AI/ML job listings from 600+ companies' own career pages, refreshed twice daily, no key needed. Business & Productivity › Jobs | Free | None | JSON | Unlimited | Live |
AttestwireValidates and generates EN 16931 e-invoices (XRechnung, Peppol BIS, CII/UBL) with rule-level errors. Business & Productivity › PDF & Documents | Freemium | API key | JSON | <100/day | Live |
BTU GraphSource-cited knowledge graph of energy companies, sectors and capabilities as JSON, CSV and RSS exports. Business & Productivity › Company Data | Free | None | JSON | Unlimited | Live |
CareerjetJob listing search by keyword and location, pulled from Careerjet's aggregated job search engine. Business & Productivity › Jobs | API key | JSON | Unlimited | Live | |
Charity SearchNonprofit/charity lookup by EIN, name, or category with financials from IRS Form 990 filings. Business & Productivity › Company Data | Freemium | API key | JSON | <100/day | Live |
CNPJ AbertoSearches 70M+ Brazilian companies by CNPJ, name, or partners, from monthly federal registry data. Business & Productivity › Company Data | Freemium | API key | JSON | 100–1k/day | Live |
CompanyEnrichEnriches and searches company and people data: firmographics, funding, ad spend, jobs, and headcount. Business & Productivity › Company Data | Freemium | API key | JSON | — | Live |
CrustdataSearches and enriches company and people profiles — funding, headcount, jobs, and contacts. Business & Productivity › Company Data | Freemium | API key | JSON | — | Live |
CuratorSearchCuratorial and museum job listings with advertised salaries, aggregated daily from 400+ institutions. Business & Productivity › Jobs | Free | None | JSON | — | Live |
EnigmaQueries verified US business data via GraphQL: entity profiles, registrations, and card-transaction signals. Business & Productivity › Company Data | Paid | API key | GraphQL | — | Live |
Fantastic.jobsHourly job postings aggregated from 55+ ATS platforms and job boards, with AI-enriched fields. Business & Productivity › Jobs | Free trial | API key | JSON | — | Live |
FormForgeConverts a JSON form schema into a styled, accessible HTML form with built-in validation. Business & Productivity › Forms | Freemium | API key | JSON | <100/day | Live |
freehireOpen-source aggregator of tech job postings from company ATS boards, deduped and searchable. Business & Productivity › Jobs | Freemium | API key | JSON | Unlimited | Live |
Funding SignalsScored leads on companies that just raised funding, sourced from public SEC Form D filings. Business & Productivity › Company Data | Freemium | API key | JSON | <100/day | Live |
GlobalEntityNormalized company lookup, VAT/LEI checks, and ownership data from 56 national business registers. Business & Productivity › Company Data | Free trial | API key | JSON | — | Live |
HimalayasFeed of remote job listings with title, company, salary range, seniority, and location/timezone restrictions. Business & Productivity › Jobs | Free | None | JSON | Unlimited | Live |
Hiring IndexAggregates live job postings and market stats from over a dozen employer ATS platforms. Business & Productivity › Jobs | Freemium | API key | JSON | — | Untested |
HunterFinds and verifies professional email addresses for a domain or company, with confidence scores. Business & Productivity › Company Data | Freemium | API key | JSON | <100/day | Live |
IndexedPrivate-company data — funding rounds, investors and tech stacks — for sales and GTM research. Business & Productivity › Company Data | Freemium | API key | JSON | <100/day | Live |
InvoiceInParses and validates e-invoice formats like XRechnung, ZUGFeRD, Peppol and FatturaPA into EN 16931 JSON. Business & Productivity › PDF & Documents | Freemium | API key | JSON | — | Live |
InvovateGenerates PDF, JSON or UBL invoices from a JSON payload, with 5 templates and 11 languages. Business & Productivity › PDF & Documents | Freemium | API key | JSON | — | Untested |
jobdata APIATS-sourced job postings from 75,000+ companies worldwide, with company and location data. Business & Productivity › Jobs | Paid | API key | JSON | — | Live |
JobDataLakeSearches 1.8M+ AI-enriched job listings scraped hourly from 25,000+ company career pages. Business & Productivity › Jobs | Freemium | API key | JSON | — | Live |
JobicyRemote job listings with company, industry, and salary filters, as JSON or RSS. Business & Productivity › Jobs | Freemium | None | JSON | Unlimited | Live |
Jobicy Salary APISalary benchmarks by job title and country, with experience tiers, skills, and remote-work demand data. Business & Productivity › Jobs | Paid | API key | JSON | — | Live |
JobsPipeAggregates and normalizes live job postings from 30+ ATS platforms and job boards into one JSON schema. Business & Productivity › Jobs | Freemium | API key | JSON | <100/day | Down |
JobvenStructured, AI-enriched job postings scraped and monitored directly from employer career pages, with webhooks. Business & Productivity › Jobs | Freemium | API key | JSON | — | Live |
JobvettaSearch live India job listings gathered from official employer sources, with full structured job detail. Business & Productivity › Jobs | Free | API key | JSON | <100/day | Live |
JobYapAggregated tech job listings with salaries, locations, and threaded discussion comments. Business & Productivity › Jobs | Free | None | JSON | Unlimited | Live |
JoobleJob search results aggregated from across the web, for posting Jooble listings on a partner site. Business & Productivity › Jobs | API key | JSON | — | Untested | |
Katalis UK Company EnrichmentVerified UK company profiles: Companies House facts, an AI summary and accuracy score, by name or domain. Business & Productivity › Company Data | Freemium | API key | JSON | <100/day | Live |
KontragentProRussian company lookup by INN: registration details, 5-year financials, court/bankruptcy risk, AI scoring. Business & Productivity › Company Data | Freemium | API key | JSON | 100–1k/day | Live |
Legal Sandbox GeorgiaMatches natural-language legal questions to verified lawyers and specialists in Georgia. Business & Productivity › Company Data | Free | None | JSON | — | Degraded |
Logo.devConverts a company domain into a logo image, returned as an image file by URL. Business & Productivity › Company Data | API key | Binary | — | Live | |
Marker APISearches the US Patent and Trademark Office database by trademark name, owner or serial number. Business & Productivity › Company Data | Freemium | Other | JSON | <100/day | Down |
Meirra Developer APIPay-per-call API for email verification, contact/company enrichment, lead search, and SEO audits. Business & Productivity › Company Data | Paid | API key | JSON | — | Untested |
NioLeadsFinds and verifies business email addresses from a person's name and company domain or LinkedIn profile. Business & Productivity › Company Data | Free trial | API key | JSON | — | Untested |
OpenRegistryLive queries across 37 national company registries: profiles, officers, shareholders, and filings. Business & Productivity › Company Data | Freemium | OAuth | JSON | 10k+/day | Live |
PayCrunch Salary APIUS salary data (entry/median/top, best-paying state) for 1,008 occupations, sourced from BLS OEWS. Business & Productivity › Jobs | Free | None | JSON | Unlimited | Live |
Pick an AgencySearch and filter 47,000+ marketing agencies by service, location, industry and rating. Business & Productivity › Company Data | Free | None | JSON | Unlimited | Live |
Project Cost EstimatorEstimates cost, timeline and complexity for web/app projects from a dataset of 600+ real quotes. Business & Productivity › Jobs | Free | API key | JSON | <100/day | Live |
ReceitaWSBrazilian company registry lookup by CNPJ: legal status, address, activities and Simples Nacional data. Business & Productivity › Company Data | Freemium | None | JSON | — | Live |
Reed Jobseeker APISearches live UK job listings by keyword, location, salary, and contract type from reed.co.uk. Business & Productivity › Jobs | API key | JSON | — | Live | |
RegistrumEnriched UK company data — profiles, directors, PSC, parsed iXBRL financials — built on Companies House. Business & Productivity › Company Data | Freemium | API key | JSON | <100/day | Live |
RenidlyResolves and verifies B2B identities — people, companies, work emails — from public web and directory data. Business & Productivity › Company Data | Freemium | API key | JSON | — | Live |
Salary ExplorerUS occupational wages and employment by state or metro, from BLS OEWS survey data, no key needed. Business & Productivity › Jobs | Free | None | JSON | Unlimited | Live |
SheetsuTurned a Google Sheet into a REST API; shut down and its domain now redirects to SheetDB. Business & Productivity › PDF & Documents | — | Deprecated | |||
SignalizFinds companies showing buying-intent signals and verifies contact emails for sales/marketing lead enrichment. Business & Productivity › Company Data | Paid | API key | JSON | — | Live |
Techmap's Job PostingsReal-time job postings aggregated and normalized from 192 job boards across 250 countries. Business & Productivity › Jobs | Freemium | API key | JSON | <100/day | Live |
The MuseJob listings and company profiles from The Muse's job board, paginated and filterable by company. Business & Productivity › Jobs | Free | API key | JSON | 10k+/day | Live |
TheirStack's Job PostingsSearches 245M+ job postings aggregated from 359,000+ job boards, ATS platforms and career pages. Business & Productivity › Jobs | Freemium | API key | JSON | — | Live |
Tomba Email FinderFinds and verifies professional email addresses for a company domain, name or LinkedIn profile. Business & Productivity › Company Data | Freemium | API key | JSON | — | Untested |
ToolCompareSourced, dated pricing and plan details for 500+ SaaS tools, each price linked to where it was read. Business & Productivity › Company Data | Free | None | JSON | Unlimited | Live |
USAJOBSSearches live US federal government job listings by keyword, agency, location, and pay grade. Business & Productivity › Jobs | Free | API key | JSON | Unlimited | Live |
VillageEnriches people and company profiles and finds warm-introduction paths through a synced network. Business & Productivity › Company Data | Freemium | API key | JSON | — | Untested |
Web3FormsContact-form backend: post any HTML form to one endpoint and get submissions by email, no server code needed. Business & Productivity › Forms | Freemium | API key | JSON | <100/day | Untested |
WorklittleSearchable job listings index with geocoded locations, salary data, and AI apply/resume tools. Business & Productivity › Jobs | Freemium | API key | JSON | <100/day | Live |
AdzunaLive
Job listing search plus salary and vacancy trend data across Adzuna's supported countries.
API key · JSON
—
no machine-readable spec
AI Dev JobsFreeLive
Searchable AI/ML engineering job listings with salary data across hundreds of companies.
None · JSON
—
OpenAPI spec · MCP server · llms.txt
ArbeitnowFreeLive
Live, hourly-updated European (mostly German) job listings with company, title, and tags.
None · JSON
Unlimited
no machine-readable spec
ArbeitsamtLive
Searches Germany's largest job database (Bundesagentur für Arbeit) by title, location and field.
API key · JSON
Unlimited
OpenAPI spec
Artificial Intelligence JobsFreeLive
Live AI/ML job listings from 600+ companies' own career pages, refreshed twice daily, no key needed.
None · JSON
Unlimited
OpenAPI spec · llms.txt
AttestwireFreemiumLive
Validates and generates EN 16931 e-invoices (XRechnung, Peppol BIS, CII/UBL) with rule-level errors.
API key · JSON
<100/day
OpenAPI spec · MCP server · llms.txt
BTU GraphFreeLive
Source-cited knowledge graph of energy companies, sectors and capabilities as JSON, CSV and RSS exports.
None · JSON
Unlimited
OpenAPI spec · llms.txt
CareerjetLive
Job listing search by keyword and location, pulled from Careerjet's aggregated job search engine.
API key · JSON
Unlimited
no machine-readable spec
Charity SearchFreemiumLive
Nonprofit/charity lookup by EIN, name, or category with financials from IRS Form 990 filings.
API key · JSON
<100/day
OpenAPI spec
CNPJ AbertoFreemiumLive
Searches 70M+ Brazilian companies by CNPJ, name, or partners, from monthly federal registry data.
API key · JSON
100–1k/day
llms.txt
CompanyEnrichFreemiumLive
Enriches and searches company and people data: firmographics, funding, ad spend, jobs, and headcount.
API key · JSON
—
llms.txt
CrustdataFreemiumLive
Searches and enriches company and people profiles — funding, headcount, jobs, and contacts.
API key · JSON
—
llms.txt
CuratorSearchFreeLive
Curatorial and museum job listings with advertised salaries, aggregated daily from 400+ institutions.
None · JSON
—
MCP server · llms.txt
EnigmaPaidLive
Queries verified US business data via GraphQL: entity profiles, registrations, and card-transaction signals.
API key · GraphQL
—
MCP server
Fantastic.jobsFree trialLive
Hourly job postings aggregated from 55+ ATS platforms and job boards, with AI-enriched fields.
API key · JSON
—
no machine-readable spec
FormForgeFreemiumLive
Converts a JSON form schema into a styled, accessible HTML form with built-in validation.
API key · JSON
<100/day
no machine-readable spec
freehireFreemiumLive
Open-source aggregator of tech job postings from company ATS boards, deduped and searchable.
API key · JSON
Unlimited
llms.txt
Funding SignalsFreemiumLive
Scored leads on companies that just raised funding, sourced from public SEC Form D filings.
API key · JSON
<100/day
OpenAPI spec · llms.txt
GlobalEntityFree trialLive
Normalized company lookup, VAT/LEI checks, and ownership data from 56 national business registers.
API key · JSON
—
llms.txt
HimalayasFreeLive
Feed of remote job listings with title, company, salary range, seniority, and location/timezone restrictions.
None · JSON
Unlimited
MCP server · llms.txt
Hiring IndexFreemiumUntested
Aggregates live job postings and market stats from over a dozen employer ATS platforms.
API key · JSON
—
llms.txt
HunterFreemiumLive
Finds and verifies professional email addresses for a domain or company, with confidence scores.
API key · JSON
<100/day
llms.txt
IndexedFreemiumLive
Private-company data — funding rounds, investors and tech stacks — for sales and GTM research.
API key · JSON
<100/day
OpenAPI spec · llms.txt
InvoiceInFreemiumLive
Parses and validates e-invoice formats like XRechnung, ZUGFeRD, Peppol and FatturaPA into EN 16931 JSON.
API key · JSON
—
OpenAPI spec
InvovateFreemiumUntested
Generates PDF, JSON or UBL invoices from a JSON payload, with 5 templates and 11 languages.
API key · JSON
—
no machine-readable spec
jobdata APIPaidLive
ATS-sourced job postings from 75,000+ companies worldwide, with company and location data.
API key · JSON
—
OpenAPI spec · llms.txt
JobDataLakeFreemiumLive
Searches 1.8M+ AI-enriched job listings scraped hourly from 25,000+ company career pages.
API key · JSON
—
llms.txt
JobicyFreemiumLive
Remote job listings with company, industry, and salary filters, as JSON or RSS.
None · JSON
Unlimited
llms.txt
Jobicy Salary APIPaidLive
Salary benchmarks by job title and country, with experience tiers, skills, and remote-work demand data.
API key · JSON
—
llms.txt
JobsPipeFreemiumDown
Aggregates and normalizes live job postings from 30+ ATS platforms and job boards into one JSON schema.
API key · JSON
<100/day
MCP server · llms.txt
JobvenFreemiumLive
Structured, AI-enriched job postings scraped and monitored directly from employer career pages, with webhooks.
API key · JSON
—
no machine-readable spec
JobvettaFreeLive
Search live India job listings gathered from official employer sources, with full structured job detail.
API key · JSON
<100/day
no machine-readable spec
JobYapFreeLive
Aggregated tech job listings with salaries, locations, and threaded discussion comments.
None · JSON
Unlimited
MCP server · llms.txt
JoobleUntested
Job search results aggregated from across the web, for posting Jooble listings on a partner site.
API key · JSON
—
llms.txt
Katalis UK Company EnrichmentFreemiumLive
Verified UK company profiles: Companies House facts, an AI summary and accuracy score, by name or domain.
API key · JSON
<100/day
OpenAPI spec
KontragentProFreemiumLive
Russian company lookup by INN: registration details, 5-year financials, court/bankruptcy risk, AI scoring.
API key · JSON
100–1k/day
OpenAPI spec · llms.txt
Legal Sandbox GeorgiaFreeDegraded
Matches natural-language legal questions to verified lawyers and specialists in Georgia.
None · JSON
—
OpenAPI spec · llms.txt
Logo.devLive
Converts a company domain into a logo image, returned as an image file by URL.
API key · Binary
—
no machine-readable spec
Marker APIFreemiumDown
Searches the US Patent and Trademark Office database by trademark name, owner or serial number.
Other · JSON
<100/day
no machine-readable spec
Meirra Developer APIPaidUntested
Pay-per-call API for email verification, contact/company enrichment, lead search, and SEO audits.
API key · JSON
—
OpenAPI spec · llms.txt
NioLeadsFree trialUntested
Finds and verifies business email addresses from a person's name and company domain or LinkedIn profile.
API key · JSON
—
no machine-readable spec
OpenRegistryFreemiumLive
Live queries across 37 national company registries: profiles, officers, shareholders, and filings.
OAuth · JSON
10k+/day
llms.txt
PayCrunch Salary APIFreeLive
US salary data (entry/median/top, best-paying state) for 1,008 occupations, sourced from BLS OEWS.
None · JSON
Unlimited
OpenAPI spec · llms.txt
Pick an AgencyFreeLive
Search and filter 47,000+ marketing agencies by service, location, industry and rating.
None · JSON
Unlimited
OpenAPI spec · llms.txt
Project Cost EstimatorFreeLive
Estimates cost, timeline and complexity for web/app projects from a dataset of 600+ real quotes.
API key · JSON
<100/day
llms.txt
ReceitaWSFreemiumLive
Brazilian company registry lookup by CNPJ: legal status, address, activities and Simples Nacional data.
None · JSON
—
no machine-readable spec
Reed Jobseeker APILive
Searches live UK job listings by keyword, location, salary, and contract type from reed.co.uk.
API key · JSON
—
OpenAPI spec · llms.txt
RegistrumFreemiumLive
Enriched UK company data — profiles, directors, PSC, parsed iXBRL financials — built on Companies House.
API key · JSON
<100/day
OpenAPI spec
RenidlyFreemiumLive
Resolves and verifies B2B identities — people, companies, work emails — from public web and directory data.
API key · JSON
—
llms.txt
Salary ExplorerFreeLive
US occupational wages and employment by state or metro, from BLS OEWS survey data, no key needed.
None · JSON
Unlimited
OpenAPI spec · llms.txt
SheetsuDeprecated
Turned a Google Sheet into a REST API; shut down and its domain now redirects to SheetDB.
·
—
no machine-readable spec
SignalizPaidLive
Finds companies showing buying-intent signals and verifies contact emails for sales/marketing lead enrichment.
API key · JSON
—
llms.txt
Techmap's Job PostingsFreemiumLive
Real-time job postings aggregated and normalized from 192 job boards across 250 countries.
API key · JSON
<100/day
llms.txt
The MuseFreeLive
Job listings and company profiles from The Muse's job board, paginated and filterable by company.
API key · JSON
10k+/day
no machine-readable spec
TheirStack's Job PostingsFreemiumLive
Searches 245M+ job postings aggregated from 359,000+ job boards, ATS platforms and career pages.
API key · JSON
—
OpenAPI spec · MCP server · llms.txt
Tomba Email FinderFreemiumUntested
Finds and verifies professional email addresses for a company domain, name or LinkedIn profile.
API key · JSON
—
llms.txt
ToolCompareFreeLive
Sourced, dated pricing and plan details for 500+ SaaS tools, each price linked to where it was read.
None · JSON
Unlimited
llms.txt
USAJOBSFreeLive
Searches live US federal government job listings by keyword, agency, location, and pay grade.
API key · JSON
Unlimited
no machine-readable spec
VillageFreemiumUntested
Enriches people and company profiles and finds warm-introduction paths through a synced network.
API key · JSON
—
OpenAPI spec · llms.txt
Web3FormsFreemiumUntested
Contact-form backend: post any HTML form to one endpoint and get submissions by email, no server code needed.
API key · JSON
<100/day
no machine-readable spec
WorklittleFreemiumLive
Searchable job listings index with geocoded locations, salary data, and AI apply/resume tools.
API key · JSON
<100/day
OpenAPI spec · llms.txt
Nothing matches that combination. Clear the filters and start from the category.
Choosing a Business & Productivity API
Is there a free Business & Productivity API?
Yes. USAJOBS, AI Dev Jobs, Arbeitnow, Artificial Intelligence Jobs, BTU Graph and 11 others are free to use, and Hunter, Web3Forms, Attestwire, Charity Search, CNPJ Aberto and 23 others have a free tier alongside paid plans.
Which Business & Productivity APIs work without an API key?
AI Dev Jobs, Arbeitnow, Artificial Intelligence Jobs, BTU Graph, CuratorSearch and 9 others need no key or sign-up, so you can try them with a plain request.
Can I call a Business & Productivity API from front-end JavaScript?
AI Dev Jobs, Arbeitnow, Artificial Intelligence Jobs, BTU Graph, CuratorSearch and 7 others allow cross-origin requests and need no key, so they work straight from the browser. For the others, call them from your server so your key stays private.
Can I use Business & Productivity APIs in a commercial project?
Hunter, Web3Forms, BTU Graph, Charity Search, CNPJ Aberto and 27 others permit commercial use. USAJOBS, Himalayas, NioLeads, Project Cost Estimator and Registrum restrict it, for example to non-commercial or attributed use, so read the terms first.
Which Business & Productivity APIs work with AI agents?
AI Dev Jobs, Attestwire and TheirStack's Job Postings have both an MCP server and an OpenAPI spec. CuratorSearch, Enigma, Himalayas and JobYap have an MCP server, so an AI agent can call them directly. Arbeitsamt, Artificial Intelligence Jobs, BTU Graph, Charity Search, Funding Signals and 14 others publish an OpenAPI spec for generating clients and tools.
Browse by subcategory: Company Data APIs · Jobs APIs · PDF & Documents APIs · Forms APIs
Popular topics: Company Enrichment APIs · Email Finder APIs · Company Registry Lookup APIs · B2B & Lead Data APIs · Salary Data APIs · HTML to PDF APIs