📬 B2B Work Email Finder & Verifier (Apollo/Clay)

Waterfall Contact Enrichment — Email & Phone Lookup

ryanclinton/waterfall-contact-enrichment

Find business emails, phones, and social profiles from a name + company domain. Cascades through MX validation, website scraping, pattern detection, and SMTP verification. Free Clay alternative.

Person Data Enrichment — Email, Phone & LinkedIn

ryanclinton/person-enrichment-lookup

Enriches persons from People Data Labs — cheaper than Clay, Apollo, or ZoomInfo. Name + company → verified work email, job title, seniority, phone, LinkedIn, and location. Pay-per-event: $0.15/person. No subscription.

B2B Buying Signals: Hiring + Tech Stack Intent for Clay

mambalabs/b2b-buying-signals-hiring-tech-stack-intent-for-clay

Combines GTM hiring signals and tech stack detection into one flat Clay-ready row with composite score, recommended action, and plain-English summary. Runs two sub-actors in a single call. Built for Clay enrichment and outbound qualification. MCP-ready for Claude Desktop and AI agents.

Outbound Stack Detector Cold Email Sending Domains Clay

mambalabs/outbound-infrastructure-fingerprint

Detects whether a company runs cold email outbound and on what stack. Finds the lookalike sending domains behind the program, the inbox provider, the sequencer, warmup and infrastructure vendors, plus SPF, DKIM and DMARC posture. One flat Clay ready row per domain.

Company Tech Stack Detection: BuiltWith Alternative

mambalabs/gtm-tech-stack-signal-scraper

Detects which GTM tools a company uses on their website. Returns CRM, sequencer, and marketing automation flags as a flat Clay-ready row. Covers HubSpot, Salesforce, Marketo, Apollo, Outreach, and more. No JSON parsing required. MCP-ready for Claude Desktop, Cursor, and AI agent workflows.

Bulk Email Verifier — MX, SMTP & Disposable Detection at Scale

ryanclinton/bulk-email-verifier

Verify email deliverability in bulk — MX records, live SMTP mailbox checks, disposable domain detection (55,000+ domains), role-based flagging, catch-all detection, and confidence scores. $0.005/email, no subscription.

Sequencer Lead Push Instantly Smartlead Clay Outbound

mambalabs/clay-to-instantly-smartlead-push

Pushes Clay-enriched leads into an Instantly or Smartlead campaign. Maps Clay column names to sequencer fields, gates on ICP score, deduplicates against the campaign, and batches the push. Dry run returns the exact payload without sending. Instantly API v2 and Smartlead API v1.

Work Email Waterfall Finder Verifier BYOK Clay Ready

mambalabs/email-waterfall-orchestrator

Finds work emails by chaining your own provider keys, verifies each result, and returns real per-provider spend instead of hiding it behind a credit abstraction. Bring your own Findymail, Prospeo, Icypeas, Reoon and BounceBan keys.

LinkedIn Email Finder & Verifier | Find B2B Emails

blessiticus/linkedin-email-finder-pro

Find verified emails from LinkedIn profiles or Names & Domains. We generate permutations and perform live SMTP handshakes to guarantee deliverability. No external API keys required! At just $0.020 per valid email

People Finder & Email Verifier

mambalabs/people-finder

Find people at any company by seniority and department. Four-layer cascade: website, SERP, and database enrichment with company-match scoring. Two-provider email waterfall (Icypeas, Prospeo) plus catch-all verification (Reoon, BounceBan). No direct LinkedIn scraping.