Leadenrich
Leadenrich MCP server performs waterfall lead enrichment by sequentially querying Apollo, Clearbit, and Hunter to collect contact details, company data, and emails. It operates on a BYOK model for API keys. Sales engineers and marketing automation developers use it to process prospect lists in CRM pipelines or custom scripts.
Overview
Leadenrich is an MCP server implementing a waterfall enrichment pipeline for leads. It routes each enrichment request through Apollo first, then Clearbit, and finally Hunter, aggregating data from the first successful response to maximize coverage of emails, phone numbers, job titles, and firmographics. The BYOK model requires users to supply their own API keys for each provider.
Key Capabilities
- Waterfall querying: Attempts enrichment via Apollo (apollo_enrich), falls back to Clearbit (clearbit_enrich), then Hunter (hunter_enrich) until data is retrieved or all fail.
- Data aggregation: Combines fields like email, name, title, company domain, revenue, and employee count from responsive providers.
- BYOK authentication: Users provide API keys via MCP context, enabling secure, account-specific access without shared credentials.
Use Cases
- CRM lead import: Feed a CSV of company names/domains into a script calling Leadenrich to append verified emails and titles before uploading to Salesforce.
- Prospecting automation: In a sales script, enrich scraped LinkedIn URLs via Apollo fallback chain to build outreach lists with Hunter emails.
- A/B testing datasets: Enrich marketing campaign lists with Clearbit firmographics (industry, size) to segment by revenue tiers.
- API proxy for apps: Integrate into a web app where users submit leads; Leadenrich handles multi-provider lookup to return JSON-enriched profiles.
Who This Is For
Sales operations engineers building automation pipelines, marketing developers enriching datasets for campaigns, and data pipeline architects needing reliable contact resolution without single-provider dependency.