Developers & agents
SpawnRadar API & MCP
Programmatic access to SpawnRadar’s Roblox game intelligence — live player counts, player-count history, tracked competitor changes, developers, and genres. A clean REST/JSON API plus an MCP server so AI agents can use the same data.
Authentication
The API is a Pro feature. Create a key in your dashboard and send it as a bearer token. Keys are shown once; store them securely. Rate limit: 120 requests/minute per key.
curl https://www.spawnradar.com/api/v1/charts/top?limit=5 \
-H "Authorization: Bearer sr_live_…"Base URL & format
Base URL is https://www.spawnradar.com/api/v1. Success responses are { "data": …, "meta": … }; errors are { "error": { "code", "message" } } with a stable machine-readable code. The full machine contract is the OpenAPI spec, and the live capability map is GET /api/v1.
Endpoints
| Method | Path | Description |
|---|---|---|
| GET | /games?q={query} | Search games by name, universe id, place id, or Roblox URL. |
| GET | /games/{universe_id} | Full stats for one game. |
| GET | /games/{universe_id}/history?range=30d | Player-count history (24h · 7d · 30d · 90d · 1y). |
| GET | /games/{universe_id}/changes?notable_only=true | Tracked change events — the competitor-alert signal. |
| GET | /games/{universe_id}/similar | Similar games by genre and audience size. |
| GET | /charts/top | Most-played games by live concurrent players. |
| GET | /charts/trending | Rising games by momentum. |
| GET | /player-count | Combined live player count across the top games. |
| GET | /genres | All genres with game counts. |
| GET | /developers/{type}/{id} | A creator (user | group) and all their games. |
MCP server (for AI agents)
SpawnRadar ships an MCP server so agents (Claude, Cursor, etc.) can search games, pull live counts and history, and watch competitor changes as native tools. Point your MCP client at the published package with your API key:
{
"mcpServers": {
"spawnradar": {
"command": "npx",
"args": ["-y", "spawnradar-mcp"],
"env": { "SPAWNRADAR_API_KEY": "sr_live_…" }
}
}
}Tools include search_games, get_game, game_history, recent_changes, top_games, trending_games, player_count, list_by_creator, and compare_games.
Get a key
Upgrade to Pro and generate an API key from your dashboard.