First Sales API Documentation & MCP Config | Salestools Club
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Sales Engagement

First Sales

Cold email platform with automated warmup and inbox placement.

Connect with AI
Give docs to Claude
Public API
Available
MCP
Not available
Free tier
No free tier listed

How to connect

Give docs to Claude
Open API docs

What your agent can do

01Automated Deliverability Optimization
02Inbox Placement Tracking
03Email Warmup Management
04Email Verification

Connect First Sales

01Open the API docsGive the REST documentation to Claude Code or Cursor.
02AuthenticateConfigure API Key without pasting secrets into chat.
03Build the first workflowUse the starter prompt below as a brief for your coding agent.
Open API documentation

Starter prompt

Claude, check my inbox placement status in First Sales for the new outreach campaign.

About First Sales

First Sales provides a platform for managing cold email outreach at scale, featuring automated warmup and inbox placement monitoring. Its focus on deliverability and ease of use makes it a strong tool for teams looking to launch effective outbound campaigns quickly. The platform provides documented processes for maintaining sender reputation and optimizing email performance over time.