# filtrat.io

> Find and verify B2B emails. Email finder, verification, catch-all resolution, MCP server, and API — one tool, one credit balance.

filtrat.io discovers business emails from name + company domain, verifies email addresses, and resolves catch-all domains to a definitive valid or invalid status. Other verification tools return "accept-all" for catch-all domains and stop. filtrat.io resolves each address individually on Google Workspace, Microsoft 365, and domains behind gateways like Proofpoint and Mimecast.

## Key capabilities

- Email Finder: name + company domain → verified work email. 12 credits per found email. Not found is free. Catch-all resolution included in every search. Optional `company_name` parameter triggers automatic domain correction when MX records are missing — improves found rate by 10-15% on lists with outdated or incorrect domains.
- Domain correction: when the provided domain has no mail server, filtrat.io searches the web (Serper + DeepSeek) for the correct corporate domain, validates it via MX records, and retries. Corrected domain appears in the response. Cached alias lookups are instant; first correction adds ~2-20s.
- 21 email pattern templates including hyphenated names (e.g. ann-sofie → annsofie, ann.sofie) and firstl variants. Covers first.last, firstlast, first_last, f.last, flast, first.l, firstl, and more.
- Standard email verification (SMTP, MX, syntax, disposable, role detection) — 0.5 credits per confirmed result
- Catch-all resolution to confirmed valid or invalid — 3 credits per confirmed result
- Pattern lookup for email format detection (e.g. snowplow.io uses first.last@ 72% of the time)
- Prospecting & Monitoring: LinkedIn post monitoring, event attendee capture, company → decision-makers, content search — verified emails from engagement signals in real time. See https://filtrat.io/features/prospecting
- Gateway bypass (Proofpoint, Mimecast, Barracuda)
- Pay only for confirmed results — unresolved emails are free
- LinkedIn Email Finder: paste a LinkedIn search URL, profile link, or post URL. Get leads with verified emails back. Supports regular LinkedIn and Sales Navigator. ICP filters available for building audience without search URLs. Post engagement capture (reactions + comments). Multi-page search capture. 75%+ found rate. Catch-all resolved, not labeled. See https://filtrat.io/linkedin
- Chrome extension: find verified emails directly from LinkedIn and Sales Navigator. Works on search results and profiles. Leads saved to Leads Lists in the dashboard. Download at https://filtrat.io/extension
- Leads Lists: import leads from LinkedIn/Sales Navigator via the Chrome extension, store enriched metadata (company, title, domain, industry, HQ), and trigger bulk email finding. Export as CSV. Access via MCP tools (list_lead_lists, get_leads).

## Integration

- MCP server: connect filtrat.io to Claude Desktop, Cursor, Windsurf, or any MCP-compatible AI agent. Find and verify emails in natural language. Server URL: https://mcp.filtrat.io/mcp (Streamable HTTP, Bearer auth with ak_ API key).
- REST API: single-email, bulk, and webhook endpoints. Same pricing, same results.
- Clay templates: pre-configured Clay table for email verification and email finder. Copy the template, add your API key, run.
- n8n workflow templates: pre-built workflows for automated verification and enrichment.
- CSV upload and download

## Pricing

- Starter: $10/mo for 12,000 credits (24,000 verifications or 1,000 finds)
- Growth: $25/mo for 30,000 credits (60,000 verifications or 2,500 finds)
- Business: $50/mo for 70,000 credits (140,000 verifications or 5,833 finds)
- Email Finder: 12 credits per found email, not found is free
- Catch-all resolution: 3 credits per confirmed result from plan balance
- Unresolved catch-all: free
- PAYG packs available (credits never expire)

## Comparisons

- vs MillionVerifier: https://filtrat.io/compare/millionverifier
- vs NeverBounce: https://filtrat.io/compare/neverbounce
- vs ZeroBounce: https://filtrat.io/compare/zerobounce
- vs Bouncer: https://filtrat.io/compare/bouncer
- vs DeBounce: https://filtrat.io/compare/debounce
- vs BounceBan: https://filtrat.io/compare/bounceban

## Integrations

- LinkedIn Email Finder: https://filtrat.io/linkedin
- LinkedIn & SN Accounts (Flygen partner): https://filtrat.io/linkedin/accounts
- Chrome Extension: https://filtrat.io/extension
- MCP Server (AI Agents): https://filtrat.io/integrations/mcp
- Clay: https://filtrat.io/integrations/clay
- n8n Templates: https://filtrat.io/integrations/n8n
- REST API: https://filtrat.io/features/api

## Case Studies

- ContentStudio — SMB cold outreach, 85 leads, 100% personal email found rate, $0 for failed searches: https://filtrat.io/case-studies/contentstudio
- Scaling Labs — replaced Scrubby catch-all resolver, matched accuracy at 20x speed and fraction of cost, 2,000+ emails tested, subscribed: https://filtrat.io/case-studies/scaling-labs
- Relevant Software — filtrat vs Clay waterfall vs Clearout, 301 leads, 96.2% validation accuracy, zero domain mismatches, cancelled Clearout, 1,700+ emails found since: https://filtrat.io/case-studies/relevant-software
- Wise Squad — outbound agency replaced NeverBounce + multiple providers, 5,000+ emails verified, +15% contacts recovered from catch-all resolution, default verification provider: https://filtrat.io/case-studies/wise-squad

## Blog

- The 20-40% of Your List That Your Verification Tool Left Unresolved: https://filtrat.io/blog/catch-all-problem
- What Happens to the Catch-All Rows in Your Clay Table: https://filtrat.io/blog/clay-catch-all-rows
- The Last Gap in Your AI SDR Pipeline: https://filtrat.io/blog/mcp-ai-sdr-pipeline
- Email Verification for Lead Gen Agencies: https://filtrat.io/blog/email-verification-for-lead-gen-agencies
- Switch to filtrat.io From Any Verifier: https://filtrat.io/blog/switch-to-filtrat-from-any-verifier

## Links

- Website: https://filtrat.io
- LinkedIn Email Finder: https://filtrat.io/linkedin
- Email Finder: https://filtrat.io/features/email-finder
- API docs: https://filtrat.io/features/api
- Catch-all resolution: https://filtrat.io/features/catch-all
- Email verification: https://filtrat.io/features/email-verification
- Prospecting & Monitoring: https://filtrat.io/features/prospecting
- Pattern lookup: https://filtrat.io/features/pattern-lookup
- Security: https://filtrat.io/security
- Chrome Extension: https://filtrat.io/extension
- Case Studies: https://filtrat.io/case-studies
- Contact: https://filtrat.io/contact