io.github.agentstacktech/agentstack
AgentStack (agentstack.tech)
Backend for AI agents: one batched tool over ~668 actions (hosting, storage, auth, payments).
alive probed 2026-10-15 · HTTP 200
1tools
2.2ktokens in Claude Opus 5.5
2.2ktokens in Claude Code
1.1 %of a 200k context window
1.1ko200k_base estimate
1.6 sto initialize
1.3 sto list tools
- Endpoint
- https://agentstack.tech/mcp (streamable-http)
- Host
- agentstack.tech
- Protocol
- 2025-11-25
- Reports itself as
- agentstack 0.4.22
- Capabilities
- completions, logging, prompts, resources, tasks, tools
- Instructions
- 1 372 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-15. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/agentstacktech/AgentStack
- Website
- https://agentstack.tech
- Registry
- active, updated 2026-10-06 · registry entry
- Reachable
- 8 of the last 9 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| agentstack.execute | 1 138 | 100 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-15 10:27 | alive | 711 ms | 1 | 2.2k | 1.1k |
| 2026-10-14 09:21 | alive | 2.1 s | 1 | 2.4k | 1.3k |
| 2026-10-12 11:41 | alive | 2.5 s | 1 | 1.6k | 877 |
| 2026-10-11 10:23 | alive | 1.8 s | 1 | 2.1k | 1.2k |
| 2026-10-10 10:15 | alive | 1.6 s | 1 | 2.1k | 1.2k |
| 2026-10-09 11:18 | not MCP | 1.6 s | |||
| 2026-10-08 11:12 | alive | 1.6 s | 1 | 1.8k | 999 |
| 2026-10-07 11:10 | alive | 777 ms | 1 | 1.4k | 775 |
| 2026-10-06 10:59 | alive | 1.2 s | 1 | 1.3k | 762 |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.agentstacktech/agentstack)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.