Keyframer
REMOTE · API.KEYFRAMER.DEV · SCANNED SEP 26
150+ React Native animation recipes, scene authoring, phone preview via QR, Reanimated v4 codegen
Available components
Recent critical change
Authorization (24 Aug 2026). See the changelog before you install this server.
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. How we score → Why this is hard to score →
Endpoint Security46
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation check failed: no authorisation is required to call this server, and it exposes a tool marked destructive (update_scene). See how to fix → View diagnostics → Fail
- HTTPS check failed: the endpoint is reachable over plaintext HTTP. See how to fix → View diagnostics → Fail
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability77
- AI-judged instruction clarity (excellent).Pass
- 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. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage97
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 92% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 11 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 12 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
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.
remote · api.keyframer.dev
claude mcp add --transport http dev-keyframer-keyframer 'https://api.keyframer.dev/mcp'
{
"mcpServers": {
"dev-keyframer-keyframer": {
"url": "https://api.keyframer.dev/mcp"
}
}
} {
"servers": {
"dev-keyframer-keyframer": {
"type": "http",
"url": "https://api.keyframer.dev/mcp"
}
}
} [mcp_servers.dev-keyframer-keyframer] url = "https://api.keyframer.dev/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"dev-keyframer-keyframer": {
"type": "remote",
"url": "https://api.keyframer.dev/mcp",
"enabled": true
}
}
} openclaw mcp add dev-keyframer-keyframer --url 'https://api.keyframer.dev/mcp' --transport streamable-http
mcp_servers:
dev-keyframer-keyframer:
url: "https://api.keyframer.dev/mcp" {
"McpServers": {
"dev-keyframer-keyframer": {
"Transport": "http",
"Url": "https://api.keyframer.dev/mcp"
}
}
} assistant mcp add dev-keyframer-keyframer -t streamable-http -u 'https://api.keyframer.dev/mcp'
{
"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.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 22 Sept 26 0
- Stability: 0.97 → pass security
- 21 Sept 26 +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.
- 19 Sept 26 +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.
- 17 Sept 26 +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.
- 15 Sept 26 +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.
- 13 Sept 26 +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.
- 11 Sept 26 +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.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 26 Sept 2026 · Probed https://api.keyframer.dev/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=keyframer.dev | CN=WE1,O=Google Trust Services,C=US | 25 Aug 2026 | 23 Nov 2026 | ECDSA 256 | ECDSA-SHA256 | 22a07a3017b9606113af99b84f04b060 |
| SANs: keyframer.dev, api.keyframer.dev, *.api.keyframer.dev | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of api.keyframer.dev. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| dev. | present | 60074 | 8 | Verified |
| keyframer.dev. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://api.keyframer.dev/mcp | Verified | 200 | |
| http (plaintext) | http://api.keyframer.dev/mcp | Served over HTTP | 200 |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
create_scene Create a scene in Keyframer ~178
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).
| Name | Type | Req | Description |
|---|---|---|---|
| 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 | – | yes | The scene as a JSON object (preferred) or a JSON string. Call get_scene_format for the shape. |
No output schema declared.
No examples provided.
generate_code Generate React Native code ~161
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.
| Name | Type | Req | Description |
|---|---|---|---|
| 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 |
No output schema declared.
No examples provided.
get_preview_qr Preview on device (QR) ~89
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.
| Name | Type | Req | Description |
|---|---|---|---|
| scene_id | string | yes | Scene id from create_scene or list_scenes |
No output schema declared.
No examples provided.
get_recipe Get a recipe (scene + code) ~114
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.
| Name | Type | Req | Description |
|---|---|---|---|
| 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 |
No output schema declared.
No examples provided.
get_scene Get a scene ~60
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.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | Scene id from list_scenes or an editor URL |
No output schema declared.
No examples provided.
get_scene_format Scene format authoring guide ~72
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.
| Name | Type | Req | Description |
|---|---|---|---|
| section | string | – | Default "scene" |
No output schema declared.
No examples provided.
list_scenes List your scenes ~33
List the scenes in the connected Keyframer account (id, name, updated, visibility). Requires an API key.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
sample_scene Sample animation values over time ~139
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.
| Name | Type | Req | Description |
|---|---|---|---|
| element_ids | array | – | Only report these element ids |
| samples | integer | – | Sample count across the duration (default 9) |
| scene | – | yes | The scene as a JSON object (preferred) or a JSON string. Call get_scene_format for the shape. |
No output schema declared.
No examples provided.
search_recipes Search animation recipes ~98
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.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | – | – |
| limit | integer | – | – |
| query | string | yes | What to build, e.g. "snap carousel with parallax" or "countdown ring" |
No output schema declared.
No examples provided.
update_scene Update a scene ~127
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.
| Name | Type | Req | Description |
|---|---|---|---|
| make_public | boolean | – | Change public visibility (unchanged if omitted) |
| name | string | – | New name (unchanged if omitted) |
| scene | – | yes | The scene as a JSON object (preferred) or a JSON string. Call get_scene_format for the shape. |
| scene_id | string | yes | Scene id from create_scene or list_scenes |
No output schema declared.
No examples provided.
validate_scene Validate scene JSON ~71
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.
| Name | Type | Req | Description |
|---|---|---|---|
| scene | – | yes | The scene as a JSON object (preferred) or a JSON string. Call get_scene_format for the shape. |
No output schema declared.
No examples provided.
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.