mem0ai/mem0 · error · NotFoundError

Resource not found: {path}

Error message

Resource not found: {path}

What it means

Error "Resource not found: {path}" thrown in mem0ai/mem0.

Source

Thrown at cli/python/src/mem0_cli/backend/platform.py:45

            headers={
                "Authorization": f"Token {config.api_key}",
                "Content-Type": "application/json",
                "X-Mem0-Source": "cli",
                "X-Mem0-Client-Language": "python",
                "X-Mem0-Client-Version": __version__,
            },
            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")

View on GitHub (pinned to 001c235229)

Solutions

1. Check that the requested path (memory, entity, or project ID) exists.
2. Verify the ID spelling and that the resource belongs to your org/project.

When it happens

Trigger: Thrown at cli/python/src/mem0_cli/backend/platform.py:45 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/cb62b4101ef3f40c. Report an issue: GitHub.