Builder Quickstart

1. Get your API key

Go to Settings in the app. Under API Keys, click Generate. You’ll get a pb_... key and a ready-to-use snippet.

2. Copy the quickstart snippet

The modal gives you everything your agent needs in one block:

Documentation: https://productbrain.com/docs/llm-guide.md
Base URL: https://productbrain.com/api/v1
API Key: pb_your_key_here
Project ID: your-project-id

3. Give it to your agent

Paste the snippet into your Claude Code session, Cursor config, or any LLM agent. The agent reads the LLM Guide first, then uses the API to understand your project. Claude Code example:

Read the documentation at https://productbrain.com/docs/llm-guide.md
then use the API to understand what I'm building and what to work on next.

Base URL: https://productbrain.com/api/v1
API Key: pb_your_key_here
Project ID: your-project-id

4. Agent reads the tree

The agent calls GET /api/v1/nodes?projectId=... to see your full planning tree, and GET /api/v1/iterations?projectId=...&current=true to find the active iteration. It knows what to build and what proof to produce.

5. Agent writes back

As the agent works, it updates the tree:

# Mark a job done
curl -X POST "$API_URL/mutate" \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"action": "update", "projectId": "your-project", "nodeId": "job-42", "data": {"status": "done"}}'

6. You review

Open the Delivery Map in the app. See which jobs the agent has completed, what’s still open, and how your bets are progressing across iterations.

What’s next

API Reference

Full endpoint docs, nodes, search, mutations, iterations.

LLM Operations Guide

The canonical reference your agent reads. Data model, field rules, all endpoints.

Getting Started

Strategist Quickstart

Builder Quickstart

1. Get your API key

2. Copy the quickstart snippet

3. Give it to your agent

4. Agent reads the tree

5. Agent writes back

6. You review

What’s next

API Reference

LLM Operations Guide

​1. Get your API key

​2. Copy the quickstart snippet

​3. Give it to your agent

​4. Agent reads the tree

​5. Agent writes back

​6. You review

​What’s next

API Reference

LLM Operations Guide

1. Get your API key

2. Copy the quickstart snippet

3. Give it to your agent

4. Agent reads the tree

5. Agent writes back

6. You review

What’s next