Mmcp.market

OnceAsk MCP server

by rsb6061·io.github.rsb6061/onceask·v1.0.0
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MCP server for OnceAsk, the AI-native current-address layer for people and agents.

B81/100grade B
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Safety scan
B81/100

full report

Adoption
Growing

0 stars

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If you have run it, two minutes of your experience saves the next person an afternoon.

OnceAsk tools (4, 1 write)

write = sends, deletes, buys or posts
  • list_handwritten_cardsFree

    List available Handwrytten card designs and handwriting styles for privacy-preserving fulfillment. Does not expose recipient address data.

  • request_delivery_permissionFree

    After the user explicitly confirms they want the recipient contacted, ask OnceAsk to request a current delivery address/permission. Accepts either a recipientId from resolve_delivery or a person's name/email. OnceAsk searches its contacts and connected Google/Gmail-derived people, then emails the secure request when possible without revealing the recipient email or street address to the agent.

  • resolve_deliveryFree

    Preferred privacy-preserving way to send something to a person. Searches OnceAsk first and, when connected, can discover a missing person from Google Contacts or Gmail interactions. Resolves to a short-lived one-time delivery token when recipient permission and a current address exist. Does not return the street address.

  • send_handwritten_cardwrite actionFree

    Fulfill a handwritten card using a delivery token returned by resolve_delivery. OnceAsk sends the recipient address directly to the fulfillment provider; the agent does not receive it.

Public scan report

scanner v0.1.5 · 2026-09-19 · same rubric, same numbers if you re-run it

1 high
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 1397ms20/20
  • Tool poisoning4 tool descriptions checked15/15
  • Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
  • Maintenancelast push 4 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

Findings (1)

  • highWrite-action tools reachable without authenticationauth.open-write
Overall 81/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

Install directly

claude mcp add --transport http onceask https://onceask.com/_api/mcp
Add to Cursor

OnceAsk: common questions

Is OnceAsk MCP server safe?
Mostly: it is graded B (81/100). Read the OnceAsk safety report
How do I install OnceAsk?
It runs remotely at onceask.com. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
Does OnceAsk need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is OnceAsk maintained?
The last commit was 6 days ago (2026-09-16). The latest release is v1.0.0.
Is OnceAsk up?
100% of our last 8 checks got an answer. We check remote servers about four times a day.
What can I use instead of OnceAsk?
Servers from other publishers that do the same job: Kin MCP server.

Alternatives to OnceAsk

Same job from other publishers: the closest match first, then the best rated.

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