---
title: "Changes to Agent: invoke a tool on an MCP server"
method: POST
path: "/api/v1/mcp/internal/tools/call"
---

# Changes to Agent: invoke a tool on an MCP server

`POST /api/v1/mcp/internal/tools/call`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 2 of 50 revisions.

- **2026-04-26** `09f18af670c4`: 2 breaking, 4 info
- **2026-04-06** `6d5e3b7979d1`: 1 info

## Changes

- **2026-04-26** `09f18af670c4`: 2 breaking, 4 info
  - the request property `server_id` became required
  - the request property `tool_name` became required
  - api tag `MCP` added
  - api tag `api/v1/mcp` removed
  - api tag `internal` removed
  - api tag `tools` removed
- **2026-04-06** `6d5e3b7979d1`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/nixopus/apis/nixopus-api/docs/api/v1/mcp/internal/tools/call/post.md) - [API](https://skmtc.dev/nixopus/apis/nixopus-api.md) - [Page](https://skmtc.dev/nixopus/apis/nixopus-api/changes/api/v1/mcp/internal/tools/call/post)