MCPLow riskUnclaimed

ONCE — Exactly-Once Reliability for AI Agent Actions

Prevent duplicate AI-agent side effects with idempotency, verification, and durable receipts.

GSterlingPressgsterlingpress/onceUpdated Sep 13, 2026

server.json

{
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "name": "io.github.GSterlingPress/once",
  "description": "Prevent duplicate AI-agent side effects with idempotency, verification, and durable receipts.",
  "title": "ONCE — Exactly-Once Reliability for AI Agent Actions",
  "repository": {
    "url": "https://github.com/GSterlingPress/once-api",
    "source": "github"
  },
  "version": "0.8.4",
  "websiteUrl": "https://github.com/GSterlingPress/once-api",
  "remotes": [
    {
      "type": "streamable-http",
      "url": "https://optimistic-compassion-production.up.railway.app/mcp"
    }
  ]
}

Permissions

DeclaredDetected
Runs code—None
Installs—None
Runs install scripts—None
Networkoptimistic-compassion-production.up.railway.appoptimistic-compassion-production.up.railway.app
Needs credentialsNoneNone
Outside the workspace—None
Agent tools—None

Checks

Low risk · Nothing worth a warning was found.

Not reviewed by a person · Checked by rules; the model review is not switched on yet.

Versions

  1. #10.8.4latestOct 7, 2026