OnceAsk
MCP server for OnceAsk, the AI-native current-address layer for people and agents.
Connect it
Settings → Connectors → Add custom connector
URL: https://onceask.com/_api/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://onceask.com/_api/mcp{
"mcpServers": {
"onceask": {
"url": "https://onceask.com/_api/mcp"
}
}
}claude mcp add --transport http onceask https://onceask.com/_api/mcp{
"servers": {
"onceask": {
"type": "http",
"url": "https://onceask.com/_api/mcp"
}
}
}4 tools, verified live
resolve_deliveryPreferred 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.
request_delivery_permissioncan modifyAfter 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.
list_handwritten_cardsread-onlyList available Handwrytten card designs and handwriting styles for privacy-preserving fulfillment. Does not expose recipient address data.
send_handwritten_cardcan modifyFulfill 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.
Alternatives in Developer Tools
Compare →RDRevoGrid DataGrid MCP ProA
Hosted Pro MCP server for RevoGrid DataGrid docs, examples, feature checks, and migration guidance.
LALabelhead Artist MomentumA
Trending hip-hop artist momentum scores across four cultural dimensions.
TLTldrawA
Draw and visually collaborate with your agents on tldraw's canvas.
KLKorean Law MCPA
Korean law: statutes, precedents, ordinances, treaties and citation verification (법제처 API).
EMemailmdA
Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.
SESemioticA
Verified React chart generation: select, validate, repair, render, and inspect charts through MCP.