io.github.GSterlingPress/once
ONCE — Exactly-Once Reliability for AI Agent Actions
io.github.GSterlingPress/once costs 315 tokens of context per session. It has 2 tool definitions. That is 0.2 % of a 200k window. Measured 2026-10-03.
Prevent duplicate AI-agent side effects with idempotency, verification, and durable receipts.
alive probed 2026-10-03 · HTTP 200
2tools
315tokens for the tool definitions
0.2 %of a 200k context window
354 msto initialize
72 msto list tools
- Endpoint
- https://optimistic-compassion-production.up.railway.app/mcp (streamable-http)
- Host
- optimistic-compassion-production.up.railway.app
- Protocol
- 2025-11-25
- Reports itself as
- once 0.8.2
- Capabilities
- tools
- Instructions
- 416 characters
- Repository
- https://github.com/GSterlingPress/once-api
- Website
- https://github.com/GSterlingPress/once-api
- Registry
- active, updated 2026-09-13 · registry entry
- Reachable
- 2 of the last 2 probes
Most expensive tools
| Tool | Tokens | Share of this server |
|---|---|---|
| once_execute | 215 | 68 % |
| once_demo | 100 | 32 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Tokens |
|---|---|---|---|---|
| 2026-10-03 20:35 | alive | 354 ms | 2 | 315 |
| 2026-10-03 17:51 | alive | 605 ms | 2 | 315 |
Badge
[](https://mcp-pulse.ulehla.dev/s/io.github.GSterlingPress/once)