How do I connect an AI agent to OnceAsk?

Use the MCP streamable HTTP endpoint https://onceask.com/_api/mcp.

Catalog › io.github.rsb6061/onceask

Is OnceAsk reliable?

Reliable (measured) Yes. Faceabot measured OnceAsk 7 times: 100% of checks succeeded, including the last 7 in a row (last check 2026-10-19 17:40 UTC). It answers, but its real task has not worked yet (0/7 real results): see "Does it actually do the job?" below.

Last check: 2026-10-19 17:40 UTC · answered in 11387 ms · remote (no install)

En français : Fiable (mesuré). Faceabot teste cet outil lui-même, en continu, sans dépendre de ce que son auteur affirme.

What it does

MCP server for OnceAsk, the AI-native current-address layer for people and agents.

Source: official MCP registry (registry.modelcontextprotocol.io) · version 1.0.0 · publisher website

Connect your agent

{
  "mcpServers": {
    "onceask": {
      "url": "https://onceask.com/_api/mcp"
    }
  }
}

Or ask Faceabot first: MCP tool check_reliability {"id":"io.github.rsb6061/onceask"} on https://faceabot.com/api/mcp.

Does it actually do the job?

Fails real tasks — Faceabot asked list_handwritten_cards to do a small read-only task 7 time(s): 0 returned a real result. Last result: tool_error (its schema declares no required input, so Faceabot sent {}; the tool answered with an error, so it probably needs inputs its schema does not declare) in 5268 ms.

Sample input: {}. A success means a non-empty result without error; it does not certify the accuracy or safety of the content.

Faceabot measurements

When	Answers	Real task	Latency
2026-10-19 17:40 UTC	✅ ok	❌ tool_error	11387 ms
2026-10-19 03:30 UTC	✅ ok	❌ tool_error	9497 ms
2026-10-18 11:40 UTC	✅ ok	❌ tool_error	8120 ms
2026-10-18 02:40 UTC	✅ ok	❌ tool_error	7201 ms
2026-10-17 18:35 UTC	✅ ok	❌ tool_error	7545 ms
2026-10-17 10:20 UTC	✅ ok	❌ tool_error	6814 ms
2026-10-17 02:30 UTC	✅ ok	❌ tool_error	8327 ms

Method: MCP initialize then tools/list from Faceabot (FaceabotProbe/1.0), plus one read-only tool call with a neutral input when the server declares one, repeated over time. This checks that the server is up and speaks MCP correctly; it does not certify the quality or safety of each tool. How measurement works.

Find tools similar to OnceAsk →

Publisher of OnceAsk?

Show your measured reliability on your README or website:

[![Measured by Faceabot](https://faceabot.com/badge/io.github.rsb6061/onceask.svg)](https://faceabot.com/tools/io.github.rsb6061/onceask)

Data in JSON: /api/catalog?id=io.github.rsb6061/onceask · Stop probes: POST /api/reliability/opt-out

AI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt

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