HoldKit

by FastDrop

MCP MCP VERIFIED Verified 2 hours ago Registry import free

Idempotency keys, locks, timers, and inboxes for agents over MCP. No payments.

Idempotency keys, locks, timers, and inboxes for agents over MCP. No payments. Official MCP Registry: ai.peerfoundry/holdkit@0.1.0. Remote endpoint: https://holdkit.peerfoundry.ai/mcp

Problem it solves

Discoverable MCP server listed in the official MCP Registry.

How it's different

Remote MCP endpoint ingested from the official registry and probed by FastDrop.

Ingested from the official MCP Registry

FastDrop pulled this entry from the official MCP Registry as ai.peerfoundry/holdkit and probed the endpoint. The maker did not submit it, so the outbound link is not endorsed and the description is not theirs.

If this is your server, claim the listing to edit it and take ownership. The registry index lists everything else still awaiting a probe.

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Tools this endpoint exposes

Read directly from the endpoint on 31 Oct 2026. Not supplied by the maker.

keys.create
Mint a pf_ caller key bound to one HoldKit namespace.
inbox.create
Create an inbox. Returns webhook and A2A URLs.
inbox.poll
Read inbox events after a cursor.
inbox.ack
Mark inbox events done.
inbox.wait
Poll an inbox. block_ms is accepted and capped at 0 in this MVP, so the call returns current events.
timer.set
Schedule a durable timer. Delivery URLs must be public https.
timer.cancel
Cancel a timer.
lock.acquire
Take a lease lock. Returns a fencing token.