Cometly

Cometly is a marketing attribution platform built specifically for B2B SaaS companies. It unifies ad spend, website visits, CRM pipeline stages, and subscription revenue into a single attribution model, enabling marketing and growth teams to track which ads and channels generate closed-won revenue.

The platform captures user activity through a first-party, server-side pixel designed to withstand ad blockers and privacy restrictions. Touchpoints are linked across subdomains and multi-device account journeys, connecting top-of-funnel clicks directly to deal milestones in CRMs like HubSpot or Salesforce and recurring revenue in Stripe.

Cometly also features two-way sync capabilities and an MCP server. Teams can push high-intent conversion signals back to ad platforms via server-side APIs to optimize bidding, while querying live attribution metrics directly inside external AI assistants.

Key features

• First-party pixel and server-side tracking: Captures web sessions and events server-side to maintain data accuracy across domains and privacy controls.
• Multi-touch attribution: Offers eight attribution models including first-touch, last-touch, linear, and position-based with custom attribution windows.
• Account-level journeys: Aggregates all contact touchpoints for a company into a unified timeline to measure buying committee interactions.
• Conversion API sync: Sends server-side conversion data with match parameters back to Meta, Google, LinkedIn, and TikTok to refine ad targeting.
• CRM and billing integrations: Connects directly with tools like HubSpot, Salesforce, Close, and Stripe to tie ad campaigns to MRR and ARR.
• Natural language AI agent: Allows users to query pipeline, ROAS, CAC, and attribution metrics using conversational prompts within the app.
• Model Context Protocol server: Exposes live attribution metrics to external AI assistants such as Claude Desktop and Cursor.