---
title: "Call any Fine Structure tool by name"
method: POST
path: "/api/mcp/tools/{tool_name}"
tags: ["bridge"]
---

# Call any Fine Structure tool by name

`POST /api/mcp/tools/{tool_name}`

## Request

- Base URL: `https://finestructure.ai`
- URL: `https://finestructure.ai/api/mcp/tools/{tool_name}`
- Auth: HTTP bearer

Generic REST bridge to the Fine Structure tool surface. The request body is the tool's arguments object. Prefer the per-tool operations below, which carry the exact JSON schema for each tool.

## Path parameters

- `tool_name` string, required

## Request body

- object

## Response `200`

Tool executed successfully

- ToolResult
  - `ok` boolean, required
  - `tool` string, required
  - `result` object, required

## Other responses

- `400`: Invalid arguments for this tool
- `401`: Missing or invalid bearer token
- `402`: Not enough credits on the account
- `403`: Token scope does not permit this tool
- `404`: Unknown tool name
- `429`: Rate limit exceeded, retry after the indicated delay
- `500`: Internal error while executing the tool

---

[API](https://skmtc.dev/finestructure/apis/fine-structure-api.md) · [All operations](https://skmtc.dev/finestructure/apis/fine-structure-api/llms.txt) · [OpenAPI document](https://skmtc.dev/finestructure/apis/fine-structure-api/revisions/02c50ed5fd70?raw)