# Upfit Plan Builder (remote · www.upfit.mobile)

Read-only bodyweight workout builder and exercise form cues from the Upfit iPhone app.

- Trust score: 80/100 (high trust)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-24

## Components

- remote · `www.upfit.mobile`: 80/100 (this document), [markdown](https://verifymcp.io/servers/mobile-upfit-upfit/www.md), [page](https://verifymcp.io/servers/mobile-upfit-upfit/www)

## Channel facts

- Endpoint: `https://www.upfit.mobile/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 2026-10-24.

- **Endpoint Security**: 80/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - 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**: 85/100
  - 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 439 tokens (~87/item across 5 items; 4 tools + 1 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 33/100
  - Stability observed for 10 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 4 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.
  - Supports UI / widget rendering.

## Install

### How do I install the Upfit Plan Builder MCP server?

Upfit Plan Builder is a hosted endpoint at https://www.upfit.mobile/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 mobile-upfit-upfit 'https://www.upfit.mobile/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "mobile-upfit-upfit": {
      "url": "https://www.upfit.mobile/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "mobile-upfit-upfit": {
      "type": "http",
      "url": "https://www.upfit.mobile/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.mobile-upfit-upfit]
url = "https://www.upfit.mobile/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "mobile-upfit-upfit": {
      "type": "remote",
      "url": "https://www.upfit.mobile/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add mobile-upfit-upfit --url 'https://www.upfit.mobile/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  mobile-upfit-upfit:
    url: "https://www.upfit.mobile/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "mobile-upfit-upfit": {
      "Transport": "http",
      "Url": "https://www.upfit.mobile/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add mobile-upfit-upfit -t streamable-http -u 'https://www.upfit.mobile/mcp'
```

### Other

```json
{
  "mcpServers": {
    "mobile-upfit-upfit": {
      "type": "http",
      "url": "https://www.upfit.mobile/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.

### 2026-10-23 (score 80, +1)

No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-21 (score 79, +1)

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-19 (score 78, +1)

No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-17 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-15 (score 76, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-14 (score 75)

First indexed and scored.

## MCP tools (4)

### `build_home_workout` (~144 tokens)

Build a home workout

Use this when the user wants a bodyweight, no-equipment home workout session. Builds a 15-move session the way the Upfit iPhone app builds one: 2 warm-ups, 10 main moves balanced around the chosen level, then 3 harder finishers. Returns each move's name, phase, set length and rest. Read-only; collects no personal data and needs no body measurements. The same seed returns the same session.

Input parameters:

- `level` (string, required): Training experience: beginner, intermediate or advanced.
- `seed`: Optional. Any word or number; the same seed rebuilds the same session. Leave out for a fresh random one.

### `get_exercise_form_cues` (~123 tokens)

Get an exercise's form cues

Use this when the user asks what Upfit's coach says or checks for a specific bodyweight exercise (for example 'squat' or 'low plank hold'). Returns the app's real spoken coach lines for that exercise and, for exercises that have an Upfit page, what the camera checks and does not check. If the exercise is unknown it says so and lists close matches. It never invents form advice.

Input parameters:

- `exercise` (string, required): Exercise name, such as 'squat', 'jumping jacks' or 'low plank hold'.

### `list_exercises` (~110 tokens)

List Upfit exercises

Use this when the user wants to see which bodyweight exercises Upfit can run. Returns the enabled exercises with Upfit's own difficulty rating (1 easiest to 9 hardest) and, where Upfit documents it, how you stand to the phone (facing it, side-on to it, or on the floor). Optional difficulty filters.

Input parameters:

- `max_difficulty` (integer): Only exercises at or below this difficulty.
- `min_difficulty` (integer): Only exercises at or above this difficulty.

### `about_upfit` (~44 tokens)

About Upfit

Use this when the user asks what Upfit is, how it works, or what it cannot check. Returns a short description and links to Upfit's own explanation pages.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/mobile-upfit-upfit/www#diagnostics

## Score history

- 2026-10-24: 80
- 2026-10-23: 80
- 2026-10-22: 79
- 2026-10-21: 79
- 2026-10-20: 78
- 2026-10-19: 78
- 2026-10-18: 77
- 2026-10-17: 77
- 2026-10-16: 76
- 2026-10-15: 76
- 2026-10-14: 75

## Common questions

### What is the Upfit Plan Builder MCP server?

Upfit Plan Builder is an MCP server listed in the public MCP registry as mobile.upfit/upfit. Read-only bodyweight workout builder and exercise form cues from the Upfit iPhone app. This page covers its hosted endpoint (https://www.upfit.mobile/mcp).

### Is the Upfit Plan Builder MCP server safe to use?

Upfit Plan Builder scores 80 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 Upfit Plan Builder MCP server expose?

Upfit Plan Builder exposes 4 tools: build_home_workout, get_exercise_form_cues, list_exercises, about_upfit. Their descriptions and schemas cost roughly 421 tokens of context every time the server is loaded.

### Does the Upfit Plan Builder MCP server require authentication?

No. We connected to Upfit Plan Builder without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Upfit Plan Builder MCP server still maintained?

Upfit Plan Builder is still listed as active in the MCP registry. We last reached this channel on 24 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://www.upfit.mobile/mcp
- Website: https://www.upfit.mobile/
- Changelog RSS feed: https://verifymcp.io/servers/mobile-upfit-upfit/www.xml
- Changelog JSON feed: https://verifymcp.io/servers/mobile-upfit-upfit/www.json
- HTML version of this page: https://verifymcp.io/servers/mobile-upfit-upfit/www