API-First CRM · Free to Start

Your single source
of sales truth

CRM Zero is a relationship-first CRM with a fully open API. Manage contacts, deals, and pipeline — then extend it with MCP, REST, or CSV.

Get started for free. No credit card required.

Free forever for up to 2 users. No credit card needed.

Everything you need to close

Built for teams who care about relationships, not busywork.

Contact Management

Multi-email, multi-phone contacts with deduplication, tagging, and lifecycle stages.

Deal Pipeline

Kanban board with drag-and-drop stages, configurable funnels, and auto-logged activities.

Sales Analytics

Pipeline distribution, deal velocity tracking, and tag-based analytics dashboards.

REST API (v1)

Full CRUD endpoints for contacts, tags, deals, and activities. API key auth with org scoping.

MCP Server

18-tool Model Context Protocol server. Let your AI assistant manage your CRM directly.

Custom Fields

Define your own fields per object type — text, currency, date, select, rating, and more. Validated, plan-gated, and fully API-accessible.

Five ways to get data in

Every input channel respects the same deduplication and merge rules.

01

Web UI

Forms with smart location normalization and real-time validation.

02

CSV Import

Streaming parser with auto-mapped columns, preview, and batch upsert.

03

REST API

Programmatic upsert with dedup. Perfect for webhooks and Clay.

04

MCP Server

Let Claude, GPT, or any MCP client manage contacts and deals.

05

Chrome Extension

Capture contacts from Gmail and LinkedIn with one click. Log emails and view CRM context in your sidebar.

Ready to get started?

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