mem0ai/mem0 · error · APIError

Bad request to {path}: {detail}

Error message

Bad request to {path}: {detail}

What it means

Error "Bad request to {path}: {detail}" thrown in mem0ai/mem0.

Source

Thrown at cli/python/src/mem0_cli/backend/platform.py:52

            timeout=30.0,
        )

    def _request(self, method: str, path: str, **kwargs: Any) -> Any:
        from mem0_cli.state import capture_notice, is_agent_mode

        self._client.headers["X-Mem0-Caller-Type"] = "agent" if is_agent_mode() else "user"
        resp = self._client.request(method, path, **kwargs)
        if resp.status_code == 401:
            raise AuthError("Authentication failed. Your API key may be invalid or expired.")
        if resp.status_code == 404:
            raise NotFoundError(f"Resource not found: {path}")
        if resp.status_code == 400:
            # Extract API error detail when available
            try:
                detail = resp.json().get("detail", resp.text)
            except Exception:
                detail = resp.text
            raise APIError(f"Bad request to {path}: {detail}")
        resp.raise_for_status()
        if resp.status_code == 204:
            return {}
        data = resp.json()

        # Pull the unclaimed-Agent-Mode notice out of the body (or the header
        # fallback for endpoints that return non-dict / non-dict-leading
        # payloads) and stash it for end-of-command surfacing.
        notice = None
        if isinstance(data, dict) and "mem0_notice" in data:
            notice = data.pop("mem0_notice")
        elif (
            isinstance(data, list)
            and data
            and isinstance(data[0], dict)
            and "mem0_notice" in data[0]
        ):
            notice = data[0].pop("mem0_notice")

View on GitHub (pinned to 001c235229)

Solutions

1. Review the request parameters sent to the given path against the API documentation.
2. Fix the malformed or missing field reported in the detail message and retry.

When it happens

Trigger: Thrown at cli/python/src/mem0_cli/backend/platform.py:52 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of mem0ai/mem0@001c235229 (2026-08-15). Data as JSON: /api/errors/826210f33e058f80. Report an issue: GitHub.