# 96 KnowFirst alternatives in 2026 Last updated: November 7, 2026. Other providers sell company discovery APIs like KnowFirst's. AnVendor, GetProspect and Hunter each cost $0.00 per 1,000 companies. ## Company discovery API alternatives On our KnowFirst plan pages, we compare each KnowFirst plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 companies first. - [AnVendor, free, POST /v1/leads/search](https://datacircle.dev/company-discovery-apis/anvendor/free-post-v1-leads-search): $0.00 per 1,000 companies - [GetProspect, free](https://datacircle.dev/company-discovery-apis/getprospect/free): $0.00 per 1,000 companies - [Hunter, free, POST /discover](https://datacircle.dev/company-discovery-apis/hunter/free-post-discover): $0.00 per 1,000 companies - [PeopleSearch.im, free](https://datacircle.dev/company-discovery-apis/peoplesearch-im/free): $0.00 per 1,000 companies - [JobDataAPI, $765 monthly](https://datacircle.dev/company-discovery-apis/jobdataapi/765-monthly): $0.0000074 per 1,000 companies - [A-Leads, $60 monthly](https://datacircle.dev/company-discovery-apis/a-leads/free#60-monthly): no price per 1,000 companies - [Crawlora, $9 monthly](https://datacircle.dev/company-discovery-apis/crawlora/free#9-monthly): no price per 1,000 companies - [Deepline, $395 monthly](https://datacircle.dev/company-discovery-apis/deepline/top-up#395-monthly): no price per 1,000 companies - [Extruct, contact us, Team & Enterprise, GET /v1/companies/search](https://datacircle.dev/company-discovery-apis/extruct/free-get-v1-companies-search#contact-us-team-enterprise-get-v1-companies-search): no price per 1,000 companies - [Nimble, $30,000 yearly, Startup, POST /v2/serp](https://datacircle.dev/company-discovery-apis/nimble/free-post-v2-serp#30000-yearly-startup-post-v2-serp): no price per 1,000 companies - [Openmart, $149 monthly, Starter, POST /api/v2/brands/search](https://datacircle.dev/company-discovery-apis/openmart/free-post-api-v2-brands-search#149-monthly-starter-post-api-v2-brands-search): no price per 1,000 companies - [TechnologyChecker, $890 yearly, Pro, GET /v1/technology/{id}/companies](https://datacircle.dev/company-discovery-apis/technologychecker/free-get-v1-technology-id-companies#890-yearly-pro-get-v1-technology-id-companies): no price per 1,000 companies - [Village, contact us](https://datacircle.dev/company-discovery-apis/village/free#contact-us): no price per 1,000 companies - [Xverum, contact us](https://datacircle.dev/company-discovery-apis/xverum/free#contact-us): no price per 1,000 companies Compare every company discovery API plan: [Company discovery API pricing: free and cheapest plans compared](https://datacircle.dev/company-discovery-api-pricing) ## Company job openings API alternatives On our KnowFirst plan pages, we compare each KnowFirst plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 jobs first. - [Ashby, free](https://datacircle.dev/company-open-job-apis/ashby/free): $0.00 per 1,000 jobs - [Greenhouse, free](https://datacircle.dev/company-open-job-apis/greenhouse/free): $0.00 per 1,000 jobs - [JobDataAPI, free](https://datacircle.dev/company-open-job-apis/jobdataapi/free): $0.00 per 1,000 jobs - [ReefAPI, free, POST /reed/v1/company-jobs](https://datacircle.dev/company-open-job-apis/reefapi/free-free-post-reed-v1-company-jobs): $0.00 per 1,000 jobs - [freehire, free](https://datacircle.dev/company-open-job-apis/freehire/free): $0.00 per 1,000 jobs - [AIsa, $19 monthly](https://datacircle.dev/company-open-job-apis/aisa/free#19-monthly): no price per 1,000 jobs - [Apollo, contact us](https://datacircle.dev/company-open-job-apis/apollo/free#contact-us): no price per 1,000 jobs - [BlitzAPI, contact us, Blitz Embedded](https://datacircle.dev/company-open-job-apis/blitzapi/free#contact-us-blitz-embedded): no price per 1,000 jobs - [Funding Signals, $99 monthly](https://datacircle.dev/company-open-job-apis/funding-signals/free#99-monthly): no price per 1,000 jobs - [InsightSocial, $95.88 yearly](https://datacircle.dev/company-open-job-apis/insightsocial/free#95-88-yearly): no price per 1,000 jobs - [Lessie AI, $99 monthly](https://datacircle.dev/company-open-job-apis/lessie-ai/99-monthly): no price per 1,000 jobs - [RouterGrowth, $39 monthly](https://datacircle.dev/company-open-job-apis/routergrowth/free#39-monthly): no price per 1,000 jobs Compare every company job openings API plan: [Company open jobs API pricing: free and cheapest plans compared](https://datacircle.dev/company-open-jobs-api-pricing) ## Tech stack API alternatives On our KnowFirst plan pages, we compare each KnowFirst plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 companies first. - [Ful.io, $199 monthly](https://datacircle.dev/company-technology-apis/ful-io/199-monthly): $99.50 per 1,000 companies - [BuiltWith, top-up from $0.50, API credits with Stripe MPP, no account, GET /v26/api.json, Domain API, full](https://datacircle.dev/company-technology-apis/builtwith/pay-as-you-go#top-up-from-0-50-api-credits-with-stripe-mpp-no-account-get-v26-api-json-domain-api-full): $100.00 per 1,000 companies - [Fokals, top-up from $5](https://datacircle.dev/company-technology-apis/fokals/free#top-up-from-5): $100.00 per 1,000 companies - [RichAPI, $100 pack, Starter, POST /website_intelligence](https://datacircle.dev/company-technology-apis/richapi/free-sandbox-post-website-intelligence#100-pack-starter-post-website-intelligence): $100.00 per 1,000 companies - [WebTechSurvey, $1,250 yearly, Professional, GET /v1/scan](https://datacircle.dev/company-technology-apis/webtechsurvey/200-pack-2000-credits-get-v1-scan#1250-yearly-professional-get-v1-scan): $104.17 per 1,000 companies - [W3Techs, €100 monthly](https://datacircle.dev/company-technology-apis/w3techs/100-pack#100-monthly): $112.53 per 1,000 companies - [Explorium, $29.99 pack, Lite, POST /v2/businesses/webstack/job](https://datacircle.dev/company-technology-apis/explorium/free-trial-post-v2-businesses-webstack-job#29-99-pack-lite-post-v2-businesses-webstack-job): $120.00 per 1,000 companies - [AnyAPI, top-up from $10, Manual top-up, POST /v1/run/technographics.theirstack](https://datacircle.dev/company-technology-apis/anyapi/free-trial-key#top-up-from-10-manual-top-up-post-v1-run-technographics-theirstack): $199.20 per 1,000 companies - [Interzoid, $999 yearly, 10,000 Credits (annual), GET /gettechstack](https://datacircle.dev/company-technology-apis/interzoid/free#999-yearly): $208.13 per 1,000 companies - [Coresignal, $2,149 yearly](https://datacircle.dev/company-technology-apis/coresignal/free#2149-yearly): $208.93 per 1,000 companies - [ZoomInfo, $25,000 pack](https://datacircle.dev/company-technology-apis/zoominfo/free#25000-pack): $250.00 per 1,000 companies - [Strale, top-up from €10, Prepaid wallet, POST /v1/do, Company Tech Stack](https://datacircle.dev/company-technology-apis/strale/free-trial-credits-post-v1-do-company-tech-stack#top-up-from-10-prepaid-wallet-post-v1-do-company-tech-stack): $337.59 per 1,000 companies - [GetProspect, contact us](https://datacircle.dev/company-technology-apis/getprospect/free#contact-us): no price per 1,000 companies - [LeadMagic, contact us](https://datacircle.dev/company-technology-apis/leadmagic/99-monthly#contact-us): no price per 1,000 companies - [Sumble, contact us](https://datacircle.dev/company-technology-apis/sumble/free#contact-us): no price per 1,000 companies - [TechnologyChecker, contact us, Enterprise, GET /v1/domain/{domain}/changes](https://datacircle.dev/company-technology-apis/technologychecker/free-get-v1-domain-domain-changes#contact-us-enterprise-get-v1-domain-domain-changes): no price per 1,000 companies Compare every tech stack API plan: [Tech stack API pricing: free and cheapest plans compared](https://datacircle.dev/tech-stack-api-pricing) ## People search API alternatives On our KnowFirst plan pages, we compare each KnowFirst plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 people first. - [AnyAPI, free trial key, POST /v1/run/people_search.ai_ark](https://datacircle.dev/people-search-apis/anyapi/free-trial-key-post-v1-run-people-search-ai-ark): $0.00 per 1,000 people - [FoxAPIs, free, GET /v1/investors/search](https://datacircle.dev/people-search-apis/foxapis/free-free): $0.00 per 1,000 people - [GetProspect, free, POST /v2/people/search, People Search](https://datacircle.dev/people-search-apis/getprospect/free-post-v2-people-search-people-search): $0.00 per 1,000 people - [Leadscart, free](https://datacircle.dev/people-search-apis/leadscart/free): $0.00 per 1,000 people - [QuickEnrich, free](https://datacircle.dev/people-search-apis/quickenrich/free): $0.00 per 1,000 people - [Argorant, $468 yearly, Starter 2,000 credits a month, billed annually, GET /api/v1/companies/{domain}/people](https://datacircle.dev/people-search-apis/argorant/free-7-day-free-trial-get-api-v1-companies-domain-people#468-yearly-starter-2000-credits-a-month-billed-annually-get-api-v1-companies-domain-people): no price per 1,000 people - [Exa, $49 monthly, Starter, POST /v0/websets/{webset}/searches](https://datacircle.dev/people-search-apis/exa/free-world-agentkit-free-trial#49-monthly-starter-post-v0-websets-webset-searches): no price per 1,000 people - [Instantly, $451.20 yearly](https://datacircle.dev/people-search-apis/instantly/9-monthly#451-20-yearly): no price per 1,000 people - [LeadIQ, contact us](https://datacircle.dev/people-search-apis/leadiq/free#contact-us): no price per 1,000 people - [Leadpipe, contact us, Enterprise](https://datacircle.dev/people-search-apis/leadpipe/contact-us-enterprise): no price per 1,000 people - [Saleshandy, $41 monthly](https://datacircle.dev/people-search-apis/saleshandy/13-pack#41-monthly): no price per 1,000 people - [Sumble, contact us, Enterprise, POST /v9/people, People](https://datacircle.dev/people-search-apis/sumble/free-post-v9-people-people#contact-us-enterprise-post-v9-people-people): no price per 1,000 people - [The Org, contact us, Enterprise, POST /v1.1/positions](https://datacircle.dev/people-search-apis/the-org/free-post-v1-1-positions#contact-us-enterprise-post-v1-1-positions): no price per 1,000 people Compare every people search API plan: [People search API pricing: free and cheapest plans compared](https://datacircle.dev/people-search-api-pricing) ## People enrichment API alternatives On our KnowFirst plan pages, we compare each KnowFirst plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 people first. - [Lessie AI, $99 monthly](https://datacircle.dev/person-enrichment-apis/lessie-ai/99-monthly): $99.00 per 1,000 people - [NeuralVerge, $1,000 monthly, Enterprise, POST /functions/v1/run-phone-enrichment-us](https://datacircle.dev/person-enrichment-apis/neuralverge/50-monthly-base-post-functions-v1-run-phone-enrichment-us#1000-monthly-enterprise-post-functions-v1-run-phone-enrichment-us): $100.00 per 1,000 people - [OneShot, top-up (x402, USDC on Base), POST /v1/tools/lookup/person-dossier](https://datacircle.dev/person-enrichment-apis/oneshot/free#top-up-x402-usdc-on-base): $100.00 per 1,000 people - [Skip Sherpa, $249 pack](https://datacircle.dev/person-enrichment-apis/skip-sherpa/49-pack#249-pack): $103.75 per 1,000 people - [Sumble, $99 monthly, Pro, POST /v9/people, People, full](https://datacircle.dev/person-enrichment-apis/sumble/free-post-v9-people-people-full#99-monthly-pro-post-v9-people-people-full): $110.00 per 1,000 people - [API Full, top-up, Pré-pago, POST /api/ic-cpf-completo](https://datacircle.dev/person-enrichment-apis/api-full/top-up-pre-pago-post-api-ic-cpf-completo): $118.04 per 1,000 people - [Prospeo, $2,241 yearly, Pro, POST /enrich-person, Enrich Person, full](https://datacircle.dev/person-enrichment-apis/prospeo/49-monthly-starter-post-enrich-person-enrich-person-full#2241-yearly-pro-post-enrich-person-enrich-person-full): $124.50 per 1,000 people - [SMARTe, contact us, Enterprise 1M credits](https://datacircle.dev/person-enrichment-apis/smarte/25-monthly#contact-us-enterprise-1m-credits): $200.00 per 1,000 people - [Minerva, $20,000 yearly](https://datacircle.dev/person-enrichment-apis/minerva/free#20000-yearly): $200.01 per 1,000 people - [RocketReach, $209 monthly, Ultimate, POST /bulkLookup](https://datacircle.dev/person-enrichment-apis/rocketreach/69-monthly-essentials-post-bulklookup#209-monthly-ultimate-post-bulklookup): $209.00 per 1,000 people - [People Data Labs, $6,360.21 yearly, Pro, Tier 2, POST /v5/person/bulk](https://datacircle.dev/person-enrichment-apis/people-data-labs/free-post-v5-person-bulk#6360-21-yearly-pro-tier-2-post-v5-person-bulk): $212.00 per 1,000 people - [BigEasyData, $2,000 monthly](https://datacircle.dev/person-enrichment-apis/bigeasydata/free#2000-monthly): $250.00 per 1,000 people - [ZoomInfo, $25,000 pack](https://datacircle.dev/person-enrichment-apis/zoominfo/free#25000-pack): $250.00 per 1,000 people - [Deepline, $395 monthly](https://datacircle.dev/person-enrichment-apis/deepline/top-up#395-monthly): $387.10 per 1,000 people - [The Official Board, $1,999 yearly, VIP, GET /executive/biography](https://datacircle.dev/person-enrichment-apis/the-official-board/free-starter-get-executive-biography#1999-yearly-vip-get-executive-biography): $399.80 per 1,000 people - [Lookify, contact us](https://datacircle.dev/person-enrichment-apis/lookify/199-monthly#contact-us): no price per 1,000 people - [Pipl, contact us](https://datacircle.dev/person-enrichment-apis/pipl/contact-us): no price per 1,000 people - [Refetcher, contact us, Access on request, POST /people-detail](https://datacircle.dev/person-enrichment-apis/refetcher/contact-us-access-on-request-post-people-detail): no price per 1,000 people Compare every people enrichment API plan: [People enrichment API pricing: free and cheapest plans compared](https://datacircle.dev/people-enrichment-api-pricing) ## Company enrichment API alternatives On our KnowFirst plan pages, we compare each KnowFirst plan with other providers' plans. We list other providers' plans below, cheapest per 1,000 companies first. - [ValueSERP, $6,216 yearly, 500,000 searches, annual, GET /search, Google Place Details](https://datacircle.dev/company-enrichment-apis/valueserp/free-trial-get-search-google-place-details#6216-yearly-500000-searches-annual-get-search-google-place-details): $1.04 per 1,000 companies - [JobsPipe, $6,240 yearly, Business, billed yearly, GET /v1/jobs/companies/{key}](https://datacircle.dev/company-enrichment-apis/jobspipe/free-get-v1-jobs-companies-key#5244-yearly-business-billed-yearly-get-v1-jobs-companies-key): $1.04 per 1,000 companies - [Serpent API, top-up from $500](https://datacircle.dev/company-enrichment-apis/serpent-api/free#top-up-from-500): $1.05 per 1,000 companies - [Infyner, ₹10,000 pack](https://datacircle.dev/company-enrichment-apis/infyner/free#10000-pack): $1.05 per 1,000 companies - [LeadMarina, $299 monthly](https://datacircle.dev/company-enrichment-apis/leadmarina/free#299-monthly): $1.25 per 1,000 companies - [Bright Data, $499 monthly, Scale, POST /datasets/v3/scrape?dataset_id=gd_l1vijqt9jfj7olije](https://datacircle.dev/company-enrichment-apis/bright-data/free-tier-post-datasets-v3-scrape-dataset-id-gd-l1vijqt9jfj7olije#499-monthly-scale-post-datasets-v3-scrape-dataset-id-gd-l1vijqt9jfj7olije): $1.30 per 1,000 companies - [EDINET DB, $39 monthly, Pro, GET /v1/companies/{code}](https://datacircle.dev/company-enrichment-apis/edinet-db/free-get-v1-companies-code#39-monthly-pro-get-v1-companies-code): $1.30 per 1,000 companies - [OrbiSearch, $207 pack, Enterprise, POST /v1/company-enrichment/bulk](https://datacircle.dev/company-enrichment-apis/orbisearch/30-pack-starter-post-v1-company-enrichment-bulk#207-pack-enterprise-post-v1-company-enrichment-bulk): $2.07 per 1,000 companies - [VatSense, $1,247.90 yearly](https://datacircle.dev/company-enrichment-apis/vatsense/free#1247-90-yearly): $2.08 per 1,000 companies - [Hunter, $1,248 yearly](https://datacircle.dev/company-enrichment-apis/hunter/free#1248-yearly): $2.08 per 1,000 companies - [DiscoLike, $399 monthly, Team, GET /match](https://datacircle.dev/company-enrichment-apis/discolike/99-monthly-starter-get-match#399-monthly-team-get-match): $2.50 per 1,000 companies - [OpenWeb Ninja, $25 monthly](https://datacircle.dev/company-enrichment-apis/openweb-ninja/free#25-monthly): $2.50 per 1,000 companies - [Scavio, $500 monthly, Growth, monthly, POST /api/v1/glassdoor/company](https://datacircle.dev/company-enrichment-apis/scavio/free-free-post-api-v1-glassdoor-company#500-monthly-growth-monthly-post-api-v1-glassdoor-company): $2.50 per 1,000 companies - [Societe.com, €8,890 pack, Pay As You Go 2 000 000 crédits, GET /entreprise/{numid}/infoslegales](https://datacircle.dev/company-enrichment-apis/societe-com/free-credits-offerts-a-l-inscription-get-entreprise-numid-infoslegales#8890-pack-pay-as-you-go-2-000-000-credits-get-entreprise-numid-infoslegales): $2.50 per 1,000 companies - [vatcheckapi, $99.99 yearly, Small, GET /v2/check](https://datacircle.dev/company-enrichment-apis/vatcheckapi/free-get-v2-check#99-99-yearly-small-get-v2-check): $4.17 per 1,000 companies - [Context.dev, $5,000 yearly, Scale, POST /v1/brand/retrieve, Lookup by transaction](https://datacircle.dev/company-enrichment-apis/context-dev/free-tier-post-v1-brand-retrieve-lookup-by-transaction#5000-yearly-scale-post-v1-brand-retrieve-lookup-by-transaction): $4.17 per 1,000 companies - [Funding Signals, $10 pack, Pay as you go, $10 pack of Starter credits, GET /v1/signals/{signal_id}/lead](https://datacircle.dev/company-enrichment-apis/funding-signals/free-get-v1-signals-signal-id-lead#10-pack-pay-as-you-go-10-pack-of-starter-credits-get-v1-signals-signal-id-lead): $4.17 per 1,000 companies - [CNPJa, R$755.89 yearly, SPEED - 120 / min (anual), GET /rfb, Receita Federal](https://datacircle.dev/company-enrichment-apis/cnpja/free-plano-gratuito-get-rfb-receita-federal#r-755-89-yearly-speed-120-min-anual-get-rfb-receita-federal): $103.27 per 1,000 companies - [Termene, €5,511 yearly](https://datacircle.dev/company-enrichment-apis/termene/free-trial#5511-yearly): $103.36 per 1,000 companies - [Lusha, $737.40 monthly](https://datacircle.dev/company-enrichment-apis/lusha/free#737-40-monthly): $105.34 per 1,000 companies - [RisCo, pay as you go, Monthly invoice on contract, GET /api/contacte.php](https://datacircle.dev/company-enrichment-apis/risco/pay-as-you-go-monthly-invoice-on-contract-get-api-contacte-php): $105.55 per 1,000 companies - [LeadIQ, $297 yearly](https://datacircle.dev/company-enrichment-apis/leadiq/free#297-yearly): $123.75 per 1,000 companies - [Openapi.com, top-up, Single request, GET /WW-advanced/{country}/{vatCode_companyNumber_taxCode_or_id}](https://datacircle.dev/company-enrichment-apis/openapi-com/free-free-get-it-advanced-vatcode-taxcode-or-id#top-up-single-request-get-ww-advanced-country-vatcode-companynumber-taxcode-or-id): $123.78 per 1,000 companies - [1Lookup, $19,990 yearly, Enterprise (annual), POST /bulk/jobs](https://datacircle.dev/company-enrichment-apis/1lookup/99-monthly-starter-post-bulk-jobs#19990-yearly-enterprise-annual-post-bulk-jobs): $124.94 per 1,000 companies - [Interzoid, $999 yearly, 10,000 Credits (annual), GET /getbusinessinfo](https://datacircle.dev/company-enrichment-apis/interzoid/free#999-yearly): $208.13 per 1,000 companies - [PrimoDato, $9,999 yearly](https://datacircle.dev/company-enrichment-apis/primodato/free#9999-yearly): $208.31 per 1,000 companies - [ParseData, pay as you go, Self-serve metered, GET /v1/business360/lookup](https://datacircle.dev/company-enrichment-apis/parsedata/pay-as-you-go-pay-per-call-over-x402-get-v1-business360-lookup#pay-as-you-go-self-serve-metered-get-v1-business360-lookup): $250.00 per 1,000 companies - [Verifik, $6,490 yearly, Business, GET /v3/co/rues-complete](https://datacircle.dev/company-enrichment-apis/verifik/49-monthly-starter-get-v3-co-rues-complete#6490-yearly-business-get-v3-co-rues-complete): $250.00 per 1,000 companies - [ZoomInfo, $25,000 pack](https://datacircle.dev/company-enrichment-apis/zoominfo/free#25000-pack): $250.00 per 1,000 companies - [Dealfront, €8,748 yearly](https://datacircle.dev/company-enrichment-apis/dealfront/113-monthly#8748-yearly): $410.17 per 1,000 companies - [SimpleAPI, CLF6 yearly](https://datacircle.dev/company-enrichment-apis/simpleapi/free#clf6-yearly): $418.34 per 1,000 companies - [AgentData, contact us](https://datacircle.dev/company-enrichment-apis/agentdata/free-no-account#contact-us): no price per 1,000 companies - [Autobound, contact us](https://datacircle.dev/company-enrichment-apis/autobound/free#contact-us): no price per 1,000 companies - [CNPJ.ws, contact us, Advanced, GET /cnpj/{cnpj}](https://datacircle.dev/company-enrichment-apis/cnpj-ws/free#contact-us-advanced-get-cnpj-cnpj): no price per 1,000 companies - [Extruct, contact us](https://datacircle.dev/company-enrichment-apis/extruct/free#contact-us): no price per 1,000 companies - [Firmbase, contact us, Enterprise, POST /v1/companies/batch](https://datacircle.dev/company-enrichment-apis/firmbase/free-no-subscription-post-v1-companies-batch#contact-us-enterprise-post-v1-companies-batch): no price per 1,000 companies - [ROIC.ai, contact us](https://datacircle.dev/company-enrichment-apis/roic-ai/free#contact-us): no price per 1,000 companies - [ReceitaWS, contact us](https://datacircle.dev/company-enrichment-apis/receitaws/free-gratis-get-cnpj-cnpj-days-days#contact-us): no price per 1,000 companies - [Skrapp, contact us, Custom plan, GET /api/v3/companies/snapshot](https://datacircle.dev/company-enrichment-apis/skrapp/349-monthly-enterprise-50k-get-api-v3-companies-snapshot#contact-us-custom-plan-get-api-v3-companies-snapshot): no price per 1,000 companies Compare every company enrichment API plan: [Company enrichment API pricing: free and cheapest plans compared](https://datacircle.dev/company-enrichment-api-pricing)