Email finder and verification tools for AI agents: pay per match

Q: How do I verify an email address before sending?

contact.verify returns valid, invalid or unknown, with whether the domain is catch-all and which mail provider it uses. Send to the valid ones.

Q: Can it find phone numbers?

contact.phone returns a mobile number from a work email or a LinkedIn URL, charged only when one is found.

Email finder tools

What can your agent do for email finder?

Each row is one tool your agent can call. The price is the lowest a successful call costs at list price. The exact figure is quoted before every run.

Tool	What it returns	Providers	From
Find & verify work emailcontact.find	Find a professional email from a person and company.	LeadMagicApolloIcypeasFindymail	$0.019per match
Email deliverability checkcontact.verify	Verify deliverability of a professional email: valid, invalid, or unknown, with catch-all and mail-server details.	LeadMagicIcypeasFindymail	$0.002per verdict
Phone number lookupcontact.phone	Mobile or direct number for a professional contact from a work email or a LinkedIn profile URL, tried on up to three providers in turn; charged only when found.	LeadMagicApolloFindymail	$0.219per match
Person enrichmentperson.enrich	Full professional profile from a public LinkedIn profile URL or a work email: name, headline, about, location and the complete role history.	ApifyApollo	$0.007per match

Every tool has a page with its input schema, its output fields and the price on each provider. Browse the whole catalog or see how plans lower every price.

In practice

What do you ask it?

You do not call tools by name. You describe the job, and the agent finds the tools, shows the price and runs them.

Find the work email for these 120 people and mark each one valid, invalid or unknown.

contact.find contact.verify

Clean this list of 2,000 addresses before I send to it.

contact.verify

I only have LinkedIn URLs. Get me the email and a mobile number for each.

person.enrich contact.find contact.phone

Connect

How do you connect it?

One MCP server for Claude, ChatGPT, Claude Code, Codex and Cursor, or the same calls over the CLI and REST. The example runs contact.find.

MCP server

claude mcp add --transport http routergrowth https://api.routergrowth.com/mcp

CLI

npm install -g routergrowth && routergrowth setup
routergrowth run -c contact.find -i '{"first_name": "Alex", "last_name": "Rivera", "company_domain": "example.com"}'

REST

curl -X POST https://api.routergrowth.com/v1/run \
  -H "Authorization: Bearer $ROUTERGROWTH_API_KEY" \
  -d '{"capability": "contact.find", "input": {"first_name": "Alex", "last_name": "Rivera", "company_domain": "example.com"}}'

In claude.ai and ChatGPT, add https://api.routergrowth.com/mcp as a connector and approve the workspace in the browser. Setup for every client.

Worth knowing

What should you know before you start?

Charged on a match

A lookup that finds nothing costs nothing. Budget from the number of people you expect to find, not the number you try.

Verification is its own call

Verify the addresses you already hold without paying to find them again. A verdict of unknown, when the mail server cannot be reached, is free.

Several finders, one call

The router tries the next provider when the first one misses, which is what a waterfall tool charges a subscription for.

Workflows

What do people build with it?

Complete jobs that call these tools, each with the prompt to paste and the cost of a run.

WorkflowEmail partners at seed funds that invest in B2B softwarePrompt, stages and cost → WorkflowConnect with angel investors who back developer toolsPrompt, stages and cost → WorkflowEmail finance leaders at UK companies hiring accountantsPrompt, stages and cost → WorkflowReach sales leaders at companies hiring SDRsPrompt, stages and cost → GuideWaterfall enrichment without the waterfall billRead the guide → GuideLead enrichment: email finder, verification and company data in one APIRead the guide → SkillMultichannel intent outboundFive steps from signal to reply: high-intent leads, their LinkedIn, a connection note and a message, a verified email, then an email and a WhatsApp follow-up when nobody answers.Install the skill → SkillHiring-signal outboundCompanies hiring for the role you sell to, the buyer at each one, a verified work email. Misses are released, not billed.Install the skill →

Outreach by audience workflows Hiring signals workflows Every workflow

FAQ

Questions about email finder with an AI agent

What is the best email finder for an AI agent?

One it can call per person and pay for per match. RouterGrowth routes each lookup across several email finders through one MCP server and charges only for the address that is found.

How do I verify an email address before sending?

contact.verify returns valid, invalid or unknown, with whether the domain is catch-all and which mail provider it uses. Send to the valid ones.

Can I verify emails in bulk?

Yes. The agent runs the list in one batch, with a cap on the total it may spend, and returns the verdicts.

Can it find phone numbers?

contact.phone returns a mobile number from a work email or a LinkedIn URL, charged only when one is found.

More tools

Other jobs on the same key

Lead generation Data enrichment Buying signals SEO AI visibility Web search and scraping Social listening Ad libraries AI creative Cold email All tools

Reading this as an agent? This page as markdown: /tools/email-finder.md · every tool page: /tools.md

Email finder for your AI agent: a work address, verified, charged only when found