dev.tmpstate/tmpstate
tmpstate
Zero-key temporary JSON database for agents: one tool call, no signup, no OAuth, no API keys.
alive probed 2026-10-05 · HTTP 200
16tools
4.0ktokens in Claude Opus 5.5
4.1ktokens in Claude Code
2.0 %of a 200k context window
2.3ko200k_base estimate
1.4 sto initialize
194 msto list tools
- Endpoint
- https://tmpstate.dev/mcp (streamable-http)
- Host
- tmpstate.dev
- Protocol
- 2025-11-25
- Reports itself as
- tmpstate 1.0.0
- Capabilities
- tools
- Instructions
- 840 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-05. Counted again when the tool definitions change. Method.
- Website
- https://tmpstate.dev
- Registry
- active, updated 2026-07-04 · registry entry
- Reachable
- 6 of the last 6 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| send_feedback | 237 | 10 % |
| delete_database | 192 | 8 % |
| create_database | 164 | 7 % |
| list_documents | 161 | 7 % |
| extend_database | 157 | 7 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-05 14:00 | alive | 1.4 s | 16 | 4.0k | 2.3k |
| 2026-10-05 00:25 | alive | 269 ms | 16 | 2.3k | |
| 2026-10-04 10:00 | alive | 1.5 s | 16 | 2.3k | |
| 2026-10-04 07:53 | alive | 2.4 s | 16 | 2.3k | |
| 2026-10-03 20:33 | alive | 1.7 s | 16 | 2.3k | |
| 2026-10-03 17:50 | alive | 2.2 s | 16 | 2.3k |
Badge and feed
[](https://mcpcost.ulehla.dev/s/dev.tmpstate/tmpstate)
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.