How do I access the API or MCP?
Access launches and listings via REST API at /api/v1, or connect an AI assistant over MCP at /mcp.
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REST API
The REST API is available at /api/v1 with full OpenAPI 3.1 documentation at /api/v1/openapi.json. Integrate with your own applications or scripts using standard HTTP requests.
MCP for AI assistants
Connect Claude, ChatGPT or other MCP clients to /mcp. Your assistant can search launches, read product listings and—with your permission—draft and manage your own listings without leaving the chat interface.
Authentication
Sign in using OAuth (your assistant will prompt you to complete sign-in on this site) or use a personal API key from /account/developers. API keys are displayed once only; only a hash is retained by the site.
Rate limits and payments
Rate limits and daily quotas apply to all API access. Payments are processed on this site itself; the API returns a checkout link when required. Voting is not available through the API.
See also /developers for full technical documentation.
Questions people ask
- Can I use the API without signing in?
- No. You must authenticate via OAuth or provide an API key from /account/developers.
- What can an AI assistant do over MCP?
- Search launches, read listings, and manage your own listings with permission. It cannot vote.
- Are there usage caps?
- Yes. Rate limits and daily quotas apply to all API access.