HoldKit

Name: HoldKit
Author: ai.peerfoundry

MCP serverMCP

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

by ai.peerfoundryhomepage ↗v0.1.0

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Evidence

Everything here was measured by our prober or read from a registry. Nothing is self-reported.

30-day availability11/11 checks ok

30 days ago

when	check	result	http	latency	detail
4 h ago	mcp initialize	ok	200	37 ms	server holdkit 0.1.0 · protocol 2025-06-18 · 14 tools
12 h ago	mcp initialize	ok	200	85 ms	server holdkit 0.1.0 · protocol 2025-06-18 · 14 tools
20 h ago	mcp initialize	ok	200	69 ms	server holdkit 0.1.0 · protocol 2025-06-18 · 14 tools
28 h ago	mcp initialize	ok	200	60 ms	server holdkit 0.1.0 · protocol 2025-06-18 · 14 tools
2 d ago	mcp initialize	ok	200	79 ms	server holdkit 0.1.0 · protocol 2025-06-18 · 14 tools
2 d ago	mcp initialize	ok	200	97 ms	server holdkit 0.1.0 · protocol 2025-06-18 · 14 tools
2 d ago	mcp initialize	ok	200	140 ms	server holdkit 0.1.0 · protocol 2025-06-18 · 14 tools
3 d ago	mcp initialize	ok	200	109 ms	server holdkit 0.1.0 · protocol 2025-06-18 · 14 tools
3 d ago	mcp initialize	ok	200	59 ms	server holdkit 0.1.0 · protocol 2025-06-18 · 14 tools
3 d ago	mcp initialize	ok	200	45 ms	server holdkit 0.1.0 · protocol 2025-06-18 · 14 tools

Tools observed via MCP handshake

keys.create — Mint a pf_ caller key bound to one HoldKit namespace. The raw key is shown once. Pass this key on every later tools/call.
inbox.create — Create an inbox. Returns webhook and A2A URLs. Call keys.create once. Pass the key on every tools/call.
inbox.poll — Read inbox events after a cursor. Call keys.create once. Pass the key on every tools/call.
inbox.ack — Mark inbox events done. Call keys.create once. Pass the key on every tools/call.
inbox.wait — Poll an inbox. block_ms is accepted and capped at 0 in this MVP, so the call returns current events. Call keys.create once. Pass the key on every tools/call.
timer.set — Schedule a durable timer. Delivery URLs must be public https. Call keys.create once. Pass the key on every tools/call.
timer.cancel — Cancel a timer. Call keys.create once. Pass the key on every tools/call.
lock.acquire — Take a lease lock. Returns a fencing token. Call keys.create once. Pass the key on every tools/call.
lock.release — Release a lock with its fencing token. Call keys.create once. Pass the key on every tools/call.
idem.begin — Start an idempotency key or return the prior outcome. fingerprint is a hex hash. Call keys.create once. Pass the key on every tools/call.
idem.commit — Store the outcome reference for an idempotency key. scope (max 64) and owner are optional. When owner is omitted, the caller key hash is sent. Call keys.create
kv.get — Read a small value. Call keys.create once. Pass the key on every tools/call.
kv.set — Write a small value with a TTL. Emails and card numbers are rejected. Call keys.create once. Pass the key on every tools/call.
kv.delete — Delete a value. Call keys.create once. Pass the key on every tools/call.

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No long description beyond the summary.

kind Official MCP Registry

name Official MCP Registry

summary Official MCP Registry

version Official MCP Registry

description Official MCP Registry

homepageUrl Official MCP Registry

publisherName Official MCP Registry

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Official MCP Registryai.peerfoundry/holdkit

first seen 4 d ago · fetched 4 d agoopen ↗

Field history (6 recent events)

4 d ago · declared · summary → "Idempotency keys, locks, timers, and inboxes for agents over MCP. No payments."
4 d ago · declared · description → "Idempotency keys, locks, timers, and inboxes for agents over MCP. No payments."
4 d ago · declared · publisherName → "ai.peerfoundry"
4 d ago · declared · homepageUrl → "https://peerfoundry.ai/"
4 d ago · declared · version → "0.1.0"
4 d ago · declared · protocols → ["mcp"]

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