All servers · Email & messaging

OnceAsk

io.github.rsb6061/onceask · v1.0.0

Has write/delete tools

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-06-18
Rank score	—
Declared risk	Has destructive tools (destructiveHint)
Capabilities declared	tools
Tool definitions	4 tools · with description 100% · input schema is an object 100% · read/destructive hints 100%

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

streamable-http · https://onceask.com/_api/mcp

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

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

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 or Gmail interactions. Resolves to a short-lived one-time delivery token when recipient permission and a current address exist. Does not retu
request_delivery_permission write/delete
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 se
list_handwritten_cards
List available Handwrytten card designs and handwriting styles for privacy-preserving fulfillment. Does not expose recipient address data.
send_handwritten_card write/delete
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.

Repository · Website · JSON · Text for agents · Registry updated 2026-09-16