# I'm In! Sign-up Sheets (remote · im-in.events)

Turn an email, notes or a flyer into a free sign-up sheet with reminders and waitlists.

- Trust score: 66/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-18

> **Recent critical change**: Authorization (2026-10-17). See the changelog below before you install this server.

## Components

- remote · `im-in.events`: 66/100 (this document), [markdown](https://verifymcp.io/servers/events-im-in-sign-up-sheets/api-mcp.md), [page](https://verifymcp.io/servers/events-im-in-sign-up-sheets/api-mcp)

## Channel facts

- Endpoint: `https://im-in.events/api/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-10-18.

- **Endpoint Security**: 57/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation check failed: no authorisation is required to call this server, and it exposes a tool marked destructive (create_signup_sheet).
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 76/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 350 tokens (~116/item across 3 items; 3 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 20/100
  - Stability observed for 6 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 3 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 60/100
  - Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28.

## Install

### How do I install the I'm In! Sign-up Sheets MCP server?

I'm In! Sign-up Sheets is a hosted endpoint at https://im-in.events/api/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http events-im-in-sign-up-sheets 'https://im-in.events/api/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "events-im-in-sign-up-sheets": {
      "url": "https://im-in.events/api/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "events-im-in-sign-up-sheets": {
      "type": "http",
      "url": "https://im-in.events/api/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.events-im-in-sign-up-sheets]
url = "https://im-in.events/api/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "events-im-in-sign-up-sheets": {
      "type": "remote",
      "url": "https://im-in.events/api/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add events-im-in-sign-up-sheets --url 'https://im-in.events/api/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  events-im-in-sign-up-sheets:
    url: "https://im-in.events/api/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "events-im-in-sign-up-sheets": {
      "Transport": "http",
      "Url": "https://im-in.events/api/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add events-im-in-sign-up-sheets -t streamable-http -u 'https://im-in.events/api/mcp'
```

### Other

```json
{
  "mcpServers": {
    "events-im-in-sign-up-sheets": {
      "type": "http",
      "url": "https://im-in.events/api/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-10-18 (score 66, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-17 (score 65, +1)

- [critical regression] Authorization: unverified → fail
- [security regression] HSTS header: unverified → fail
- [security improvement] Injection markers: unverified → pass
- [functional regression] MCP protocol: unverified → fail
- [functional improvement] Endpoint reachability: unreachable → reachable
- [functional improvement] Tool coverage: unverified → 100
- [functional improvement] Stability: unverified → 0.17

### 2026-10-16 (score 64, 0)

- [security regression] Endpoint reachability: reachable → unreachable
- [security regression] Stability: 0.10 → unverified
- [security regression] Authorization: fail → unverified
- [security regression] HSTS header: fail → unverified
- [security regression] Tool safety: pass → unverified
- [functional regression] Capabilities: fail → unverified
- [functional regression] Tool coverage: 100 → unverified
- [functional] First check of Schema quality: unverified

### 2026-10-14 (score 64, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-13 (score 63, 0)

- [functional regression] Schema quality: 103 → 116
- [functional improvement] Stability: unverified → 0.03
- [cosmetic] “create_signup_sheet” reworded the description of “slots”

### 2026-10-12 (score 63)

First indexed and scored.

## MCP tools (3)

### `draft_sheet_link` (~109 tokens)

Draft a sign-up sheet from the user's words

Turn the user's email, notes, flyer text or description of their event into a link that opens im-in.events with those words in the Describe it box. Pressing Make my draft there builds the whole sign-up sheet (dates, times, place, every role with its count, waitlist, reminders and its look) for the user to check and publish. Creates nothing and needs no account.

Input parameters:

- `words` (string, required): The user's own words about the event, as complete as they gave them

### `list_templates` (~33 tokens)

List sign-up sheet templates

List I'm In! sign up sheet templates (potluck, meal train, volunteer shifts, ...) with their prefilled slots.

### `create_signup_sheet` (~208 tokens)

Create a live sign-up sheet

Create a live sign-up sheet on im-in.events from a title, slot names and a time zone. Returns the shareable sheet URL and emails a private manage and claim link to owner_email, the user's own address. One sheet per owner email a day.

Input parameters:

- `description` (string): Optional sheet description
- `owner_email` (string, required): The user's email; the manage link is sent here
- `slots` (array, required): One line per item people sign up for, 1 spot each. Add " x4" for 4 spots, or " (no limit)" so anyone can sign up, e.g. ["Week 1 snacks", "Setup crew x4", "Coming (no limit)"]
- `starts_at` (string): Optional ISO datetime of the event
- `title` (string, required): Sheet title, e.g. "Soccer Snack Schedule"
- `tz` (string, required): IANA time zone of the event, e.g. "America/New_York"

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/events-im-in-sign-up-sheets/api-mcp#diagnostics

## Score history

- 2026-10-18: 66
- 2026-10-17: 65
- 2026-10-16: 64
- 2026-10-15: 64
- 2026-10-14: 64
- 2026-10-13: 63
- 2026-10-12: 63

## Common questions

### What is the I'm In! Sign-up Sheets MCP server?

I'm In! Sign-up Sheets is an MCP server listed in the public MCP registry as events.im-in/sign-up-sheets. Turn an email, notes or a flyer into a free sign-up sheet with reminders and waitlists. This page covers its hosted endpoint (https://im-in.events/api/mcp).

### Is the I'm In! Sign-up Sheets MCP server safe to use?

I'm In! Sign-up Sheets scores 66 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the I'm In! Sign-up Sheets MCP server expose?

I'm In! Sign-up Sheets exposes 3 tools: draft_sheet_link, list_templates, create_signup_sheet. Their descriptions and schemas cost roughly 350 tokens of context every time the server is loaded.

### Does the I'm In! Sign-up Sheets MCP server require authentication?

No. We connected to I'm In! Sign-up Sheets without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the I'm In! Sign-up Sheets MCP server still maintained?

I'm In! Sign-up Sheets is still listed as active in the MCP registry. We last reached this channel on 18 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://im-in.events/api/mcp
- Website: https://im-in.events/
- Changelog RSS feed: https://verifymcp.io/servers/events-im-in-sign-up-sheets/api-mcp.xml
- Changelog JSON feed: https://verifymcp.io/servers/events-im-in-sign-up-sheets/api-mcp.json
- HTML version of this page: https://verifymcp.io/servers/events-im-in-sign-up-sheets/api-mcp