# Keyframer (remote · api.keyframer.dev)

150+ React Native animation recipes, scene authoring, phone preview via QR, Reanimated v4 codegen

- Trust score: 74/100 (medium)
- Change this week: +1
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-26

> **Recent critical change**: Authorization (2026-08-24). See the changelog below before you install this server.

## Components

- remote · `api.keyframer.dev`: 74/100 (this document), [markdown](https://verifymcp.io/servers/dev-keyframer-keyframer/api.md), [page](https://verifymcp.io/servers/dev-keyframer-keyframer/api)

## Channel facts

- Endpoint: `https://api.keyframer.dev/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 2026-09-26.

- **Endpoint Security**: 46/100
  - 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 (update_scene).
  - HTTPS check failed: the endpoint is reachable over plaintext HTTP.
  - 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**: 77/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 1293 tokens (~117/item across 11 items; 11 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 100/100
  - No destabilizing schema changes in the last 30 days.
- **Tool Coverage**: 97/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 92% 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 11 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 12 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.

## Install

### How do I install the Keyframer MCP server?

Keyframer is a hosted endpoint at https://api.keyframer.dev/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 dev-keyframer-keyframer 'https://api.keyframer.dev/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "dev-keyframer-keyframer": {
      "url": "https://api.keyframer.dev/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "dev-keyframer-keyframer": {
      "type": "http",
      "url": "https://api.keyframer.dev/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.dev-keyframer-keyframer]
url = "https://api.keyframer.dev/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "dev-keyframer-keyframer": {
      "type": "remote",
      "url": "https://api.keyframer.dev/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add dev-keyframer-keyframer --url 'https://api.keyframer.dev/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  dev-keyframer-keyframer:
    url: "https://api.keyframer.dev/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "dev-keyframer-keyframer": {
      "Transport": "http",
      "Url": "https://api.keyframer.dev/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add dev-keyframer-keyframer -t streamable-http -u 'https://api.keyframer.dev/mcp'
```

### Other

```json
{
  "mcpServers": {
    "dev-keyframer-keyframer": {
      "type": "http",
      "url": "https://api.keyframer.dev/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.

### 2026-09-25 (score 74, 0)

- [functional] We updated how we score, so this day's move reflects our rubric, not a change to the server

### 2026-09-22 (score 74, 0)

- [security] Stability: 0.97 → pass

### 2026-09-21 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-19 (score 73, +1)

No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-17 (score 72, +1)

No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-15 (score 71, +1)

No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-13 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 67 to 70. That category is still filling its 30-day observation window: 20 days of observed history at the previous scan, 21 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-11 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 60 to 63. That category is still filling its 30-day observation window: 18 days of observed history at the previous scan, 19 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (11)

### `search_recipes` (~98 tokens)

Search animation recipes

Search 150+ free Keyframer recipes (bounce, carousels, progress rings, particles, text effects, shaders, scroll animations…). Each recipe has a scene + verified React Native Reanimated code. Returns slugs for get_recipe.

Input parameters:

- `category` (string)
- `limit` (integer)
- `query` (string, required): What to build, e.g. "snap carousel with parallax" or "countdown ring"

### `get_recipe` (~114 tokens)

Get a recipe (scene + code)

Fetch one recipe by slug: metadata, the scene JSON (usable as a starting point for create_scene), and the generated React Native Reanimated component code. Recipe code is free to use.

Input parameters:

- `id` (string): Alias for slug — a scene id from a recipe works too
- `include_code` (boolean): Include generated code (default true)
- `scene_id` (string): When a recipe has several scenes, pick one (defaults to the first)
- `slug` (string): Recipe slug from search_recipes

### `get_scene_format` (~72 tokens)

Scene format authoring guide

The Keyframer scene JSON format — read this before authoring a scene. Section "scene" covers elements/keyframes/easing; section "nodes" covers node graphs (procedural animation: clocks, springs, repeaters) with the full node-type schema.

Input parameters:

- `section` (string): Default "scene"

### `validate_scene` (~71 tokens)

Validate scene JSON

Validate a scene against the Keyframer format before create_scene or generate_code. Returns errors (must fix) and warnings (advisory). Free to call — iterate until clean.

Input parameters:

- `scene` (required): The scene as a JSON object (preferred) or a JSON string. Call get_scene_format for the shape.

### `sample_scene` (~139 tokens)

Sample animation values over time

Numerically preview a scene: evaluates keyframes AND node graphs at N evenly spaced times and returns each moving prop as a value series (the same math the editor preview runs). validate_scene checks structure — this checks MOTION: confirm ranges, spring overshoot, stagger offsets, and that elements actually move before create_scene. Free to call — iterate: author → sample → adjust.

Input parameters:

- `element_ids` (array): Only report these element ids
- `samples` (integer): Sample count across the duration (default 9)
- `scene` (required): The scene as a JSON object (preferred) or a JSON string. Call get_scene_format for the shape.

### `create_scene` (~178 tokens)

Create a scene in Keyframer

Save a scene and get an editor URL where it opens in the visual editor (timeline, canvas, node graphs, mobile QR preview). Validates first. Works without a key: the scene is then a public 24-hour guest scene with a scannable QR, kept forever by signing up (free) and pressing Remix. With a key it saves to the account (free accounts up to the free scene limit, paid unlimited).

Input parameters:

- `make_public` (boolean): Make the scene publicly viewable — its share link (keyframer.dev/share/<id>) and QR then work for anyone, not just this account
- `name` (string): Scene name shown in the editor (default "MCP scene")
- `scene` (required): The scene as a JSON object (preferred) or a JSON string. Call get_scene_format for the shape.

### `update_scene` (~127 tokens)

Update a scene

Replace the content of one of your scenes (full scene JSON, validated first) — the edit loop for iterating instead of duplicating. Live previews watching the scene update in place. Requires an API key; own scenes only.

Input parameters:

- `make_public` (boolean): Change public visibility (unchanged if omitted)
- `name` (string): New name (unchanged if omitted)
- `scene` (required): The scene as a JSON object (preferred) or a JSON string. Call get_scene_format for the shape.
- `scene_id` (string, required): Scene id from create_scene or list_scenes

### `list_scenes` (~33 tokens)

List your scenes

List the scenes in the connected Keyframer account (id, name, updated, visibility). Requires an API key.

### `get_scene` (~60 tokens)

Get a scene

Fetch one of your scenes (or any public scene) as JSON — edit it and re-save with update_scene, or feed it to generate_code. Requires an API key.

Input parameters:

- `id` (string, required): Scene id from list_scenes or an editor URL

### `get_preview_qr` (~89 tokens)

Preview on device (QR)

A terminal-scannable QR code for a scene. Scan it with a phone camera and the scene runs live in the Keyframer preview app on real hardware — edits sync as they happen. Public scenes (including guest scenes) work without a key; private scenes need an API key on a paid plan.

Input parameters:

- `scene_id` (string, required): Scene id from create_scene or list_scenes

### `generate_code` (~161 tokens)

Generate React Native code

Compile a scene into a runnable React Native component. Pass inline scene JSON or a scene_id from your account. Output targets Reanimated v4 by default ("animated" targets the RN core Animated API, reduced feature set). Deterministic — no AI, no credits. Requires an API key on a paid plan.

Input parameters:

- `api` (string): Default "reanimated"
- `gesture_handler_version` (string): react-native-gesture-handler major (default v2)
- `relative_positioning` (boolean): Emit flex-relative layout instead of absolute coordinates
- `scene`: The scene as a JSON object (preferred) or a JSON string. Call get_scene_format for the shape.
- `scene_id` (string): Generate from a saved scene instead of inline JSON

## Diagnostics

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

## Score history

- 2026-09-26: 74
- 2026-09-25: 74
- 2026-09-24: 74
- 2026-09-23: 74
- 2026-09-22: 74
- 2026-09-21: 74
- 2026-09-20: 73
- 2026-09-19: 73
- 2026-09-18: 72
- 2026-09-17: 72
- 2026-09-16: 71
- 2026-09-15: 71
- 2026-09-14: 70
- 2026-09-13: 70
- 2026-09-12: 69
- 2026-09-11: 69
- 2026-09-10: 68
- 2026-09-09: 68
- 2026-09-08: 67
- 2026-09-07: 67
- 2026-09-06: 67
- 2026-09-05: 66
- 2026-09-04: 66
- 2026-09-03: 65
- 2026-09-02: 65
- 2026-09-01: 64
- 2026-08-31: 64
- 2026-08-30: 63
- 2026-08-29: 63
- 2026-08-28: 62

## Common questions

### What is the Keyframer MCP server?

Keyframer is an MCP server listed in the public MCP registry as dev.keyframer/keyframer. 150+ React Native animation recipes, scene authoring, phone preview via QR, Reanimated v4 codegen. This page covers its hosted endpoint (https://api.keyframer.dev/mcp).

### Is the Keyframer MCP server safe to use?

Keyframer scores 74 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 Keyframer MCP server expose?

Keyframer exposes 11 tools: search_recipes, get_recipe, get_scene_format, validate_scene, sample_scene, and 6 more. Their descriptions and schemas cost roughly 1,142 tokens of context every time the server is loaded.

### Does the Keyframer MCP server require authentication?

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

### Is the Keyframer MCP server still maintained?

Keyframer is still listed as active in the MCP registry. We last reached this channel on 26 September 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://api.keyframer.dev/mcp
- Website: https://keyframer.dev/mcp
- Changelog RSS feed: https://verifymcp.io/servers/dev-keyframer-keyframer/api.xml
- Changelog JSON feed: https://verifymcp.io/servers/dev-keyframer-keyframer/api.json
- HTML version of this page: https://verifymcp.io/servers/dev-keyframer-keyframer/api