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Documentation Index

Fetch the complete documentation index at: https://septemberai.mintlify.app/llms.txt

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POST /rpc is a generic JSON-RPC-style entry point. It lets you invoke specific skills or tools without going through the full agent loop — useful for utilities, batch jobs, or simple wrappers around the Engine’s capabilities. The agent loop itself does not use this endpoint. It’s for callers who already know exactly what they want to run.

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Request

POST /rpc
X-Engine-Key: <key>
Content-Type: application/json

{
  "method": "skill.summarizer",
  "params": {
    "text": "..."
  }
}
FieldTypeRequiredPurpose
methodstringyesDotted method name. See “Method namespaces” below.
paramsobjectyesMethod-specific input.

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Response

{
  "result": { /* method-specific output */ }
}
Or, on failure: 
{
  "error": "<code>",
  "message": "..."
}

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Method namespaces

PrefixPurpose
skill.<name>Invoke a skill directly.
tool.<name>Invoke a platform tool directly.
memory.<op>Memory operations (some duplicate the dedicated endpoints).
The exact method catalog depends on the deployment’s installed catalog and custom skills. Use GET /skills to discover skills.

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When to use it

  • One-off invocations from a script.
  • Backend integration that wants a single capability without spinning up a conversation thread.
  • Testing a custom skill in isolation.

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When not to use it

  • Anything that needs the agent loop’s reasoning, tool orchestration, or memory. Use /execute instead.