Builder routes
What do you want to do with the engine?
The same Swiss Ephemeris timing core powers the app, REST endpoints, and MCP tools. Start with the surface that matches your next job.
Choose by goal
Fast orientation
| Goal | Use it for | Best next page |
|---|---|---|
| Try it | First proof, endpoint exploration, payload shaping. | /playground |
| Read the docs | Implementation, schema checks, billing behavior. | /api-docs |
| See the full engine | Understanding what the API powers in the product. | /pro |
| Use in Claude/agents | Claude workflows, tool-calling agents, local MCP setup. | /mcp |
Common builder path
- 01
Try a Daily Elections or transit payload in the playground.
- 02
Confirm the request contract in the REST docs.
- 03
Generate an API key and budget credits for paid routes.
- 04
Move agent workflows to MCP when tool-calling matters.
Need a token before making authenticated calls? API keys live in the account area and use the same credit balance as the app.