Klozeo

Klozeo is a lead management API for developers and AI-native teams. It is built for storing, scoring, and querying leads programmatically, with native Model Context Protocol integration for Claude, Cursor, and custom AI workflows.

The service provides a full REST CRUD API and describes itself as API-first and AI-ready. Its core supports dynamic attributes of several types, including text, number, bool, list, and object, added on the fly without schema migrations. Klozeo also includes a four-tier deduplication and scoring system: it merges profiles on exact email matches, source ID matches, or 80%+ fuzzy name similarity, and uses a last-touch-wins strategy. Scoring rules can be defined with field expressions, evaluated in real time, and recalculated in bulk. The API supports advanced filtering with 20+ operators, including geographic within_radius searches, batch create, update, and delete operations, and real-time webhooks for lead creation, merges, and scoring events.

For AI-assisted workflows, Klozeo exposes 33 MCP tools such as search_leads, get_stats, add_note, create_lead, update_lead, delete_lead, list_notes, list_scoring_rules, score_lead, batch_score, export_leads, and list_webhooks. The page names supported clients including Claude Desktop, Claude Code, Cursor, Cline, Roo, Code Smithery, and Goose.

Klozeo is available as an API and offers a free tier. The free plan includes MCP access and scoring, up to 100 leads, 100 API requests per 10 minutes, and batch operations for up to 100 leads per request, with no credit card required. The page also links to pricing and API documentation.