# API

Manage your API keys, credits, and MCP setup.

## Setup

- [Setup](/content/integrations/index.html)  
- [Keys & Credits](/content/integrations/keys/index.html)  
- [Usage](/content/integrations/usage/index.html)

### Sign up for free credits

Sign up to receive free API credits and start building with Happenstance.

## Apps

ChatGPT  
Official ChatGPT integration](https://chatgpt.com/apps/happenstance/asdk_app_69aa229aaca8819193b7dec8750221c9)

Claude  
MCP connector for Claude](/content/integrations/claude/index.html)

Claude Code  
MCP connector for Claude Code](/content/integrations/claude-code/index.html)

OpenClaw  
Add the Happenstance skill](https://clawhub.ai/dgoss28/happenstance)

Slack  
Search your team's networks from Slack](https://slack.happenstance.ai/)

## Developer

- [API  
Build custom integrations](/content/integrations/api/index.html)  
- [MCP  
Connect any MCP-compatible client](/content/integrations/mcp/index.html)  
- [CLI  
Search from your terminal](/content/integrations/cli/index.html)  
- [Docs  
Full API reference and guides](https://developer.happenstance.ai/)