MCP Server Proxy
Call Tool
Call a specific tool on an MCP server
POST
Call Tool
Call a specific tool on an MCP server. This is a convenience wrapper around the generic/mcp/call endpoint.
Request
Headers
Your MCP Rank API key
Body Parameters
The MCP Rank server ID
Name of the tool to call
Tool arguments (structure depends on tool’s inputSchema)
Response
Returns the tool’s execution result. The structure depends on the specific tool.Tool Result Format
MCP tools return results in a standard format:
Content blocks can be:
- Text:
{"type": "text", "text": "..."} - Image:
{"type": "image", "data": "base64...", "mimeType": "image/png"} - Resource:
{"type": "resource", "resource": {...}}
Error Responses
Error Response