Agent Toolbox is answering right now. Last checked 10 min ago. It exposes 4 tools.
Free, no-key MCP server: token estimates, JSON Schema conversion, MCP configs, tool search.
Nothing serious here today
Today is the operative word: we check Agent Toolbox every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 10 min ago.
claude mcp add agenttoolbox --transport http https://agenttoolbox.net/api/mcphttps://agenttoolbox.net/api/mcp[mcp_servers.agenttoolbox]
url = "https://agenttoolbox.net/api/mcp"{
"mcpServers": {
"agenttoolbox": {
"url": "https://agenttoolbox.net/api/mcp"
}
}
}{
"servers": {
"agenttoolbox": {
"type": "http",
"url": "https://agenttoolbox.net/api/mcp"
}
}
}This endpoint answered with an authorization challenge. The server is running, but it did not say what kind of credentials it expects.
Available tools 4
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
convert_schema
search_directory
estimate_tokens
mcp_config
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://agenttoolbox.net/api/mcp | streamable-http | needs auth | 83 ms | 10 min ago |
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Agent Toolbox — questions
Answers built from our own checks of this server.