Get OAuth2 authorization URL to authenticate with Withings
AI agents call get_authorization_url to retrieve information from Withings MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read operation—it generates and returns an authentication URL. No data is modified, deleted, or irreversibly changed. No code is executed, and no financial transactions occur. While OAuth2 authorization is sensitive from a security standpoint, the tool itself is a simple retrieval/generation function that has no direct side effects beyond returning a URL.
From the tool's definition Tool returns an OAuth2 authorization URL for authentication. The function name 'get_authorization_url' and description 'Get OAuth2 authorization URL' indicate it retrieves/generates a URL without modifying data or executing external operations.
Attacks that exploit this kind of access
Get OAuth2 authorization URL to authenticate with Withings. It is categorised as a Read tool in the Withings MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Withings MCP Server MCP server in PolicyLayer and add a rule for get_authorization_url: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Withings MCP Server. Nothing to install.
get_authorization_url is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_authorization_url rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for get_authorization_url. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
get_authorization_url is provided by the Withings MCP Server MCP server (schimmilab/withings-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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