Raven MCP Server

Odin's ravens brought back knowledge of the world - Raven brings back design intelligence. Its 40 documented tools cover audit, system, content, design.

People connecting coding agent tools to Claude, Cursor, VS Code, or another MCP client. The project is written in JavaScript.

VERIFIED ACTIVE

LAST COMMIT 2026-08-24 · ★ 5 · #23 OF 194 MAINTAINED CODING AGENT · VERIFIED 2026-08-25

Apache-2.0 · JavaScript servers · how we verify → /methodology

01 · Install Raven

before you install - you'll need

The README does not document required environment variables for a basic install.

Claude Code

claude mcp add rhinocap-raven-mcp --transport http https://mcp.ravenmcp.ai/api/mcp

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "rhinocap-raven-mcp": {
      "url": "https://mcp.ravenmcp.ai/api/mcp"
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

https://mcp.ravenmcp.ai/api/mcp

transport: streamable-http

endpoint alive - responded to MCP initialize · probed 2026-08-25

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions · remote - your agent's requests go to mcp.ravenmcp.ai

endpoint auth accepted our unauthenticated MCP initialize - no credentials needed to connect

license Apache-2.0 - declared in the repository

npm package raven-mcp - unscoped; check the name against the project README before installing

registry vendor namespace ai.ravenmcp - domain-verified with the official MCP registry

03 · What Raven can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

What you can build

With this server connected, an agent can get design principles relevant to a UI context, get proven patterns for a specific UI type, get business/monetization strategies, and search across all principles, patterns, and strategies.

Capability map

Tools grouped from the project's README - what Raven lets an agent do.

Audit

15 tools - e.g. Audit HTML/CSS against Raven's quality standards - pass html for static audit, or url to render headless with optional scroll_settle (step through reveal gates,; Evaluate visual rhythm, alignment, and…

audit_page · audit_layout · audit_responsive_visibility · audit_contrast · audit_url · audit_content…

read & search

8 tools - e.g. Get design principles relevant to a UI context; Get proven patterns for a specific UI type; Get business/monetization strategies

get_principles · get_pattern · get_business_strategy · search_knowledge · get_checklist · get_d4d_framework…

Design

4 tools - e.g. Evaluate a design description against principles. Pass base64 PNG screenshots (before_screenshot/after_screenshot) for a structured before/after pixel diff with; Browse available design systems; Get…

evaluate_design · list_design_systems · get_design_system · generate_design_system

Content

4 tools - e.g. Browse brand voice & tone systems (Conversational Product Voice, GOV.UK, Shopify Polaris, Atlassian); Get a brand's voice attributes, tone shifts, vocabulary, grammar, and content patterns; Get UX-writing…

list_content_systems · get_content_system · get_content_principles · get_content_pattern

Brand

3 tools - e.g. Get a full system styled like a well-known brand; Get brand/visual principles - logo, gradient, imagery, hierarchy, brand-as-system; Get current (2026) brand and visual-design trends with usage guidance

get_brand_system · get_brand_principles · get_brand_trends

Service

2 tools - e.g. Get a service design pattern - blueprinting, human handoff, signup-as-service, omnichannel, moments of truth; Get the GOV.UK Service Standard - 14 points for evaluating service quality

get_service_pattern · get_service_standard

Compose

1 tool - e.g. Mix tokens from different systems

compose_system

Score

1 tool - e.g. Return a per-category (0–10) design score for a page - typography, accessibility, spacing, color, responsive layout, design tokens, structure - derived from the

score_page

Latest releases

v2.5.1 · 2026-08-22

Raven v2.5.1 - patch release · Changes · Make the private-path gate's self-exclusion machine-independent · Prove the round-8 release fixes with three mutation matrices · Fix the six round-7 findings in the…

v1.17.1 · 2026-07-17

Raven v1.17.1 - patch release · Changes · Grab overlay Features 2+3: Template tab + Layers tab with clone-measured wireframe preview (#20) · Install: · Claude Desktop: download raven.mcpb

v1.17.0 · 2026-07-10

Raven v1.17.0 - minor release · Changes · Merge branch 'explore/tools-redesign' · session log: destination onboarding ship · Merge branch 'feat/grab-destination-adapter' into explore/tools-redesign · Add destination…

04 · Who maintains Raven

Raven is maintained by rhinocap. It's the only MCP server we track from this author; the repo dates to Apr 2026.

05 · Facts

category
coding agent - ranked #23 of 194 actively-maintained coding agent servers as of 2026-08-25.
release cadence
8 releases in the last 90 days (latest 2026-08-22)
registry
ai.ravenmcp/raven-mcp (active, first published 2026-05-04 · 8 versions)
packages
npm:raven-mcp

06 · Raven FAQ

Is Raven still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-24 and it shipped 8 releases in the last 90 days. We re-verify nightly.

What can Raven do?

With this server connected, an agent can get design principles relevant to a UI context, get proven patterns for a specific UI type, get business/monetization strategies, and search across all principles, patterns, and strategies.

How do I install Raven?

Run `npx -y raven-mcp`. The README does not document required environment variables for a basic install. You can also paste the ready-made client config above.

Does Raven require authentication?

No - the endpoint accepted our unauthenticated MCP initialize when probed on 2026-08-25; you can connect without credentials.

07 · Alternatives to Raven

More coding agent MCP servers · Tyrekick · Filesift · Agent Harnesses · Sourced · Builderforce

More JavaScript MCP servers · Fable Cut · Figbridge · Flow Nexus · Norn · Muapi · see all