# Seamless.ai vs ZoomInfo: what an AI agent can replace Seamless.ai vs ZoomInfo, checked 2026-11-03: how each sells (quote forms, credits, free credits, trial), what each claims about its data, invalid email refunds and API access, with sources. ## Seamless.ai vs ZoomInfo, the short answer Pick Seamless.ai if you want to start free and pay for credits that it refunds when an email bounces as invalid. Pick ZoomInfo if you need one contract for sales and marketing teams, with intent and org data on top of contacts. ## Seamless.ai vs ZoomInfo: plans, free tier and API - Published price: Seamless.ai None; a pricing form asks how many contacts you need a month (https://seamless.ai/pricing-inquiry); ZoomInfo None; pricing through a sales form, based on features, number of licenses and credit usage (https://www.zoominfo.com/pricing). Checked 2026-11-03. - Free tier or trial: Seamless.ai Free for up to 50 credits (https://seamless.ai/); ZoomInfo No free plan; a free trial on Professional, Copilot Advanced and Copilot Enterprise (https://www.zoominfo.com/pricing). Checked 2026-11-03. - How the data is built: Seamless.ai Describes itself as a real-time search engine that finds and verifies contact data when you search (https://seamless.ai/); ZoomInfo Sold as licenses plus credits; each export costs one credit (https://www.zoominfo.com/pricing). Checked 2026-11-03. - Data claimed: Seamless.ai 1.4 billion emails, 880 million mobile phones and 121 million companies and domains, refreshed daily (https://seamless.ai/); ZoomInfo Email addresses, direct dial and mobile numbers on the sales plans; no count on the pricing page (https://www.zoominfo.com/pricing). Checked 2026-11-03. - Invalid emails: Seamless.ai The credit is refunded automatically when an email is invalid (https://seamless.ai/); ZoomInfo Not stated on the pricing page (https://www.zoominfo.com/pricing). Checked 2026-11-03. - API access: Seamless.ai API, MCP and bulk credits listed as products (https://seamless.ai/); ZoomInfo No API plan listed; credits are used whenever an API call is made from its integrations (https://www.zoominfo.com/pricing). Checked 2026-11-03. ## Which one to pick Pick Seamless.ai if you want to try the data before talking to anyone: 50 free credits, then a quote sized by how many contacts you need a month. Its credit back on invalid emails lowers the cost of bad data. Pick ZoomInfo if the buyer is a revenue team, not one rep: separate sales and marketing packages, credits that cover exports and integration calls, and a free trial on the sales packages. Both claim large databases. Claims are not measurements, so run the same 100 contacts through both trials and count what connects. ## Where looot fits An agent with one looot key covers the lookups both sell: people search by title, work emails, mobile numbers, company enrichment and email verification, paid per call with no seat. The live price of each is listed below. Neither vendor's own API is in the catalog today, so the agent uses other providers for these jobs. ZoomInfo's intent signals and org charts have no match in the catalog. ## Endpoints priced live on the page - Search people by filters (Prospeo): prospeo-search-person - Find a work email from a name and domain (Hunter): hunter-email-finder - Find a work email from a name and company (Findymail): findymail-api-search-name - Find a mobile number from a profile URL or email (LeadMagic): leadmagic-people-mobile-finder - Enrich a company from its domain (CompanyEnrich): companyenrich-companies-enrich-post - Verify an email address (MillionVerifier): millionverifier-verify - Live prices: https://looot.ai/compare/seamless-ai-vs-zoominfo ## The honest note looot is not Seamless.ai and not ZoomInfo. Each product does things looot does not, and the lists below name them. Use this page to decide which jobs an agent can take over, not which tool to choose. ## Verdicts - Seamless.ai (/can-i-replace/seamless-ai): kinda. - ZoomInfo (/can-i-replace/zoominfo): kinda. ## Job by job - Search and enrich people: Seamless.ai Search people by title (covered); ZoomInfo Search people by title (covered). - Find phone numbers: Seamless.ai Find phone numbers (covered); ZoomInfo Find phone numbers (covered). - Company data: Seamless.ai Enrich company data (covered); ZoomInfo Enrich company data (covered). - Find work emails: Seamless.ai Find work emails (covered); ZoomInfo no matching job. - Records, workflows and interface: Seamless.ai Browser extension (not covered); ZoomInfo no matching job. - Technology data: Seamless.ai no matching job; ZoomInfo Technology data (partly covered). - Buyer intent signals: Seamless.ai no matching job; ZoomInfo Buyer intent signals (not covered). - Org charts: Seamless.ai no matching job; ZoomInfo Org charts (not covered). ## Jobs both do that an agent can take over - Search and enrich people. Providers: people-data-labs, coresignal, ai-ark. - Find phone numbers. Providers: tomba, ai-ark, leadmagic, findymail. - Company data. Providers: people-data-labs, coresignal, thecompaniesapi. ## What you keep Seamless.ai for - Browser extension: not covered. looot has no extension for LinkedIn or websites. ## What you keep ZoomInfo for - Technology data: partly covered. Coverage depends on the provider and the company. - Buyer intent signals: not covered. No provider in the catalog sells intent data. - Org charts: not covered. looot returns people lists, not a maintained org chart. ## Agent prompt for Seamless.ai jobs Use looot to find people with a given job title at the companies I list, then find their work emails and phone numbers. If you have not yet, set up https://looot.ai/skill.md first. Then search the looot catalog for each step, check the price of each endpoint before you call it, run the cheapest one that fits, and show me the results as a table. ## Agent prompt for ZoomInfo jobs Use looot to find the decision makers at the companies I give you and return their titles, work emails and phone numbers. If you have not yet, set up https://looot.ai/skill.md first. Then search the looot catalog for each step, check the price of each endpoint before you call it, run the cheapest one that fits, and show me the results as a table. ## Seamless.ai vs ZoomInfo: which one should I pick? Seamless.ai, if you want to start free and pay by contacts with refunds on invalid emails. ZoomInfo, if several teams need contacts, intent and org data under one contract. Test both on the same list of your own target accounts before you sign. ## How much do Seamless.ai and ZoomInfo cost? Neither publishes a price, checked 2026-11-03. Seamless.ai sends you to a form that asks how many contacts you need a month. ZoomInfo prices by features, number of licenses and credit usage through its sales team. ## Is Seamless.ai a database like ZoomInfo? Seamless.ai says it is not: it describes itself as a real-time search engine that finds and verifies contact data when you search. ZoomInfo sells access to its data by licenses and credits, with one credit per export. ## Is there a free version of Seamless.ai or ZoomInfo? Seamless.ai is free for up to 50 credits. ZoomInfo has no free plan; it offers a free trial on Professional, Copilot Advanced and Copilot Enterprise and a demo on its marketing packages. ## Do Seamless.ai and ZoomInfo have an API? Seamless.ai lists an API, MCP servers and bulk credits among its products. ZoomInfo lists no separate API plan on its pricing page, and its credits are used when its integrations make an API call. Ask either one which package includes API access. ## What happens to credits spent on bad emails? Seamless.ai says it refunds the credit automatically when an email is invalid. ZoomInfo's pricing page does not describe a refund. Whatever you use, verify emails before a send, because a bounce hurts your domain more than the lost credit. ## Can an AI agent replace Seamless.ai or ZoomInfo? For the lookups, mostly. With one looot key an agent searches people by title, finds work emails and mobile numbers, enriches companies and verifies every email, paid per call. Intent signals and org charts are not in the catalog. ## More - /can-i-replace/seamless-ai - /can-i-replace/zoominfo - /alternatives/seamless-ai - /alternatives/zoominfo - /best/b2b-data-api - /best/lead-finder - /use-cases/find-phone-numbers - /use-cases/find-professional-emails - /compare ## Agent skill for this page https://looot.ai/compare/seamless-ai-vs-zoominfo/skill.md sets an agent up for exactly the jobs on this page, with the live price of each, and offers the page's starter task once the user has picked a job and seen the price. The line to give an agent is under "Give this to your agent" below. ## For agents ### Give this to your agent ```text set up looot for Seamless.ai vs ZoomInfo jobs - https://looot.ai/compare/seamless-ai-vs-zoominfo/skill.md ```