# Rsb6061 Onceask MCP server

Source: https://glimind.com/server/mcp-registry%2Fio.github.rsb6061%2Fonceask
Registry id: `mcp-registry/io.github.rsb6061/onceask`
Status: live (checked 2026-10-27T03:24:10.583Z)

## Verdict

Rsb6061 Onceask MCP server answered 99.42% of Glimind's liveness checks over 30 days, better than 13% of MCP servers, with 587 ms median handshake and 2 outages in 90 days. Its agent-readiness grade is A (96/100) across 4 tools, costing an agent about 690 tokens to load. Checked every few minutes; no tool is ever called.

## Measurements (30 days)

| Metric | Value | Better than |
|---|---|---|
| Uptime, 30 days | 99.42% | 13% of MCP servers |
| Median handshake latency | 587 ms | 42% of MCP servers |
| p95 handshake latency | 2751 ms | — |
| Checks in 30 days | 2,967 | — |
| Outages, 90 days | 2 | — |
| Median recovery | 181.9 h | — |
| Agent-readiness score | 96/100 (A) | 82% of MCP servers |
| Tools | 4 | — |
| Tool-list size for an agent | ~690 tokens | 82% of MCP servers |
| Days observed | 29 | — |

## Install

```json
{
  "mcpServers": {
    "rsb6061-onceask-mcp-server": {
      "type": "http",
      "url": "https://onceask.com/_api/mcp"
    }
  }
}
```

Claude Code:

```sh
claude mcp add --transport http rsb6061-onceask-mcp-server https://onceask.com/_api/mcp
```

## Tools (5)

- `list_handwritten_cards`: List available Handwrytten card designs and handwriting styles for privacy-preserving fulfillment. Does not expose recipient address data.
- `request_delivery_permission`: After the user explicitly confirms they want the recipient contacted, ask OnceAsk to request a current delivery address/permission. Accepts either a recipientId
- `resolve_address`: Resolve a known person to their current, permissioned mailing address.
- `resolve_delivery`: Preferred privacy-preserving way to send something to a person. Searches OnceAsk first and, when connected, can discover a missing person from Google Contacts o
- `send_handwritten_card`: Fulfill a handwritten card using a delivery token returned by resolve_delivery. OnceAsk sends the recipient address directly to the fulfillment provider; the ag

Measured by Glimind (https://glimind.com): MCP handshake + tool list only, no tool is ever called. CC BY 4.0.