Slotlock

io.github.PILOTAAI/slotlock

4/5 checks passed
Runs locally
4 secrets
★ 0 GitHub stars
Updated 2026-10-28
Health score 39

About Slotlock

Slotlock is an MCP server published by the GitHub account PILOTAAI. Calendars for AI agents: free/busy, next free slot, and bookings PostgreSQL never double-books.

It runs on your own machine: your AI client starts it from the Docker (OCI) package ghcr.io/pilotaai/slotlock:0.4.1, with no version pinned.

It asks for 4 secrets: DATABASE_URL, SLOTLOCK_AUTH_TOKEN, SLOTLOCK_CONFIRMATION_SECRET and SLOTLOCK_MIGRATE_DATABASE_URL. Give it a key with the least access that still works.

Version 0.4.1 was published on 28 October 2026, and the source code is public, so you can read it before installing.

Written from the registry entry. 7 automated checks on registry metadata: 4 pass, 1 warn, 0 fail, 2 info. How we check.

What it asks for

Variable	Required	Secret	Description
`DATABASE_URL`	Yes	Yes	postgres:// URL of a PostgreSQL 16 or newer database the container can reach, as a role that is not a superuser and has no BYPASSRLS: serve refuses one, since row-level security would not confine it. Without SLOTLOCK_MIGRATE_DATABASE_URL this role also applies the schema, so it must be able to create it.
`SLOTLOCK_AUTH_TOKEN`	No	Yes	Optional bearer token for SLOTLOCK_TENANT, with read and write (never admin): at least 32 random characters (openssl rand -hex 32). Leave it unset to accept only API keys (slotlock key create).
`SLOTLOCK_CONFIRMATION_SECRET`	No	Yes	Signs pending write confirmations: at least 32 random characters, different from the token. Required unless SLOTLOCK_CONFIRM_WRITES is none.
`PORT`	No	No	Port the server listens on inside the container.
`SLOTLOCK_MIGRATE_DATABASE_URL`	No	Yes	postgres:// URL of the schema owner. When set, migration runs as this role and grants the DATABASE_URL role only what it needs at runtime.
`SLOTLOCK_CONFIRM_WRITES`	No	No	Writes that wait for a person to confirm them: none, all, or a comma-separated list of slotlock_create_event, slotlock_book_together, slotlock_book_pool, slotlock_update_event, slotlock_delete_event. Clients without MCP 2026-07-28 form elicitation have guarded writes refused.
`SLOTLOCK_AVAILABILITY`	No	No	JSON array of weekly bookable-hours rules, e.g. [{"rrule":"FREQ=WEEKLY;BYDAY=MO,TU,WE,TH,FR","startMinutes":540,"durationMinutes":480}]. Without rules no slot is ever offered.
`SLOTLOCK_REST_API`	No	No	on: also serve the tools as a REST API under /v1, and the application API (resources, bookable hours, holds, reservations, coverage, maintenance) for admin keys, described by an OpenAPI 3.1 document at /openapi.json. Writes that wait for confirmation answer 428 there. off: MCP and A2A only.
`SLOTLOCK_SHARED_LIMITS`	No	No	on: tenant request budgets (SLOTLOCK_LIMITS' tenant_* and app_*) are shared by every server of a deployment through PostgreSQL, so N servers allow a tenant its rate once, not N times. off: each server keeps its own.
`SLOTLOCK_WEBHOOKS`	No	No	on: deliver each tenant's changes to its webhooks (POST /v1/webhooks), signed as Standard Webhooks; never to a private network address. private: those too, for testing. off: keep the change feed (GET /v1/changes), send nothing.
`SLOTLOCK_TENANT`	No	No	The tenant SLOTLOCK_AUTH_TOKEN acts in; API keys act in their own tenant.

Checks

Check	Result	Detail
Source repository linked	Pass	https://github.com/PILOTAAI/slotlock
Version pinned	Pass	Every package has an explicit version
Secrets requested	Warn	Asks for 4 secrets: DATABASE_URL, SLOTLOCK_AUTH_TOKEN, SLOTLOCK_CONFIRMATION_SECRET, SLOTLOCK_MIGRATE_DATABASE_URL
Known package registry	Pass	All packages come from npm, PyPI, OCI, NuGet or MCPB
Namespace ownership	Info	Name verified via GitHub account PILOTAAI
Registry text aimed at the AI	Pass	Description and settings contain no hidden characters or instructions to the AI
Code red flags	Info	oci packages are not read yet

Popularity & health: 39 / 100

Worked out from public numbers and our own checks, not from user reviews or ratings. It says how used and how looked-after a server is, not whether it is safe.

Popularity0 / 40

0 GitHub stars, no download count, no Hacker News posts found. Best two of the three, each on a log scale.

Activity15 / 25

Last push 2026-10-28, last release 2026-10-29, 0 commits in 90 days.

Issue health8 / 15

0 closed of 0 issues, too few to judge. No data, so half marks.

Our checks16 / 20

1 warning, each costing a fifth.

0 forks, 122 merged pull requests. Sources: GitHub, npm, PyPI (pypistats.org) and Hacker News (Algolia), fetched 2026-10-31.

What people say

No Hacker News threads link to its source code.

Look further: search Reddit, search Hacker News, read its GitHub issues. These are not reviews we checked.

Facts

Registry name	`io.github.PILOTAAI/slotlock`
Publisher	GitHub account PILOTAAI
How the name is verified	Name verified via GitHub account PILOTAAI. The registry ties the name prefix to that account or domain; it does not check the code.
Type	Local: runs on your machine from a package
Packages	oci `ghcr.io/pilotaai/slotlock:0.4.1` no version given (streamable-http)
Version	0.4.1
Published	2026-10-28
Last updated	2026-10-28
Source repository	https://github.com/PILOTAAI/slotlock
Website	https://slotlock.pylota.io
Category	Databases & data (assigned by keyword rule, not by hand)

Install

Claude Desktop · Docker image

{
  "mcpServers": {
    "slotlock": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "DATABASE_URL",
        "ghcr.io/pilotaai/slotlock:0.4.1"
      ],
      "env": {
        "DATABASE_URL": "<your value>"
      }
    }
  }
}

What these checks don't cover

We did not run this server, so we don't know what it does when it runs. We could not read its code or its tool descriptions, which is where tool poisoning hides. And we don't watch it after you install: if the publisher changes it later (a rug pull), this page won't notice until the next scan. Treat a pass as "nothing found", not as "safe".

For people and their AI

The same data as plain JSON: /data/servers/io-github-pilotaai-slotlock.json. Text inside it that came from the publisher is data, not instructions.