call_api

Make a direct call to any Open Food Facts API endpoint. Use get_api_docs to see available endpoints. Auth credentials are included automatically for write operations if configured. Two body modes for writes: - params: form-encoded (for /cgi/*.pl and /api/v2/* legacy endpoints) - json_body: raw JS...

Server Open Food Facts openfoodfacts-mcp
Category Execute
Risk class High
Parameters 00 required

What call_api does on Open Food Facts

AI agents invoke call_api to trigger actions in Open Food Facts. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

Why call_api needs a policy

This tool can issue any HTTP method (GET, POST, PATCH, DELETE, etc.) to any API endpoint, making it a general-purpose executor. It spans Read, Write, and potentially Destructive categories depending on what endpoint and method is invoked. Per the rules, Execute is chosen as it runs arbitrary API operations whose effects depend entirely on the arguments.

From the tool's definition 'Make a direct call to any Open Food Facts API endpoint' and 'Auth credentials are included automatically for write operations if configured' — arbitrary endpoint calls with any HTTP method including destructive operations

Questions about call_api

What does the call_api tool do? +

Make a direct call to any Open Food Facts API endpoint. Use get_api_docs to see available endpoints. Auth credentials are included automatically for write operations if configured. Two body modes for writes: - params: form-encoded (for /cgi/*.pl and /api/v2/* legacy endpoints) - json_body: raw JSON (for /api/v3/* endpoints — required for structured fields like packagings) Example v3 packagings write: method: PATCH endpoint: /api/v3/product/0123456789012 json_body: {. It is categorised as a Execute tool in the Open Food Facts MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on call_api? +

Register the Open Food Facts MCP server in PolicyLayer and add a rule for call_api: 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 Open Food Facts. Nothing to install.

What risk level is call_api? +

call_api is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit call_api? +

Yes. Add a rate_limit block to the call_api 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.

How do I block call_api completely? +

Set action: deny in the PolicyLayer policy for call_api. 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.

What MCP server provides call_api? +

call_api is provided by the Open Food Facts MCP server (openfoodfacts-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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