---
title: "Discover Next Tool"
method: POST
path: "/mcp/discover/next_tool"
tags: ["MCP"]
---

# Discover Next Tool

`POST /mcp/discover/next_tool`

## Request

- Base URL: `https://api.agentstack.tech` (the document declares no server; this is the origin it was published from)
- URL: `https://api.agentstack.tech/mcp/discover/next_tool`
- Auth: one of:
  - API key in header `X-API-Key`
  - HTTP bearer

Suggest next tool based on execution history.

Request body:
{
    "executed_tools": ["projects.create_project_anonymous", "buffs.create_buff"],
    "last_result": {"success": true, "data": {...}},
    "goal": "create card game"  # optional
}

## Headers

- `Idempotency-Key` string

## Request body

- object

## Response `200`

Successful Response

- object

## Other responses

- `400`: Bad Request
- `401`: Unauthorized
- `403`: Forbidden
- `404`: Not Found
- `409`: Conflict
- `422`: Validation Error
- `429`: Too Many Requests
- `500`: Internal Server Error

---

[API](https://skmtc.dev/agentstack/apis/agentstack-core-api.md) · [All operations](https://skmtc.dev/agentstack/apis/agentstack-core-api/llms.txt) · [OpenAPI document](https://skmtc.dev/agentstack/apis/agentstack-core-api/revisions/8ecf3406e74a?raw)