import requests

url = "https://api.onecortex.io/v1/agents/{agentId}/mcp"

payload = {
    "jsonrpc": "2.0",
    "id": 1,
    "method": "tools/call",
    "params": {
        "name": "ask_echo",
        "arguments": { "prompt": "hello" },
        "_meta": {
            "io.modelcontextprotocol/protocolVersion": "2026-07-28",
            "io.modelcontextprotocol/clientCapabilities": {}
        }
    }
}
headers = {
    "MCP-Protocol-Version": "<mcp-protocol-version>",
    "Mcp-Method": "<mcp-method>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

import { Client, StreamableHTTPClientTransport } from '@modelcontextprotocol/client'

const url = new URL('https://api.onecortex.io/v1/agents/agt_.../mcp')
const client = new Client({ name: 'my-app', version: '1.0.0' }, { versionNegotiation: { mode: 'auto' } })
await client.connect(new StreamableHTTPClientTransport(url, {
  requestInit: { headers: { Authorization: `Bearer ${process.env.ONECORTEX_API_KEY}` } },
}))
const { tools } = await client.listTools()
const result = await client.callTool({ name: tools[0].name, arguments: { prompt: 'hello' } })
console.log(result.content)

curl https://api.onecortex.io/v1/agents/agt_.../mcp \
  -H "Authorization: Bearer $ONECORTEX_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -H "MCP-Protocol-Version: 2026-07-28" \
  -H "Mcp-Method: tools/call" \
  -H "Mcp-Name: ask_echo" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"ask_echo","arguments":{"prompt":"hello"},"_meta":{"io.modelcontextprotocol/protocolVersion":"2026-07-28","io.modelcontextprotocol/clientCapabilities":{}}}}'

{
  "jsonrpc": "2.0",
  "id": "<string>",
  "result": {},
  "error": {
    "code": 123,
    "message": "<string>"
  }
}

{
  "jsonrpc": "2.0",
  "id": 1,
  "error": {
    "code": -32022,
    "message": "Unsupported protocol version: 2024-01-01",
    "data": {
      "supported": [
        "2026-07-28"
      ],
      "requested": "2024-01-01"
    }
  }
}

{
  "jsonrpc": "2.0",
  "id": null,
  "error": {
    "code": -32600,
    "message": "A valid Onecortex API key is required."
  }
}

{
  "jsonrpc": "2.0",
  "id": null,
  "error": {
    "code": -32600,
    "message": "That agent does not exist."
  }
}

{
  "jsonrpc": "2.0",
  "id": "<string>",
  "result": {},
  "error": {
    "code": 123,
    "message": "<string>"
  }
}