Figma Install & Auth Skill

Figma Install & Auth

Overview

Configure authentication for the Figma REST API. Figma supports two auth methods: Personal Access Tokens (PATs) for scripts and server-side tools, and OAuth 2.0 for apps that act on behalf of users. All requests go to https://api.figma.com.

Prerequisites

Figma account (Free, Professional, or Enterprise)
Node.js 18+ (for JS/TS integrations)
A Figma file key (the string after /design/ in a Figma URL)

Instructions

Step 1: Generate a Personal Access Token

Open Figma > Settings > Account > Personal access tokens
Click Generate new token
Name the token and assign scopes:

| Scope | Access | Use Case | |-------|--------|----------| | file_content:read | Read file JSON | Inspecting layers, extracting design tokens | | file_content:write | Modify files | Programmatic design updates | | file_comments:read | Read comments | Review tooling | | file_comments:write | Post comments | Automated feedback | | file_dev_resources:read | Dev resources | Dev mode integrations | | file_variables:read | Read variables | Design token sync | | file_variables:write | Write variables | Token pipeline | | webhooks:write | Manage webhooks | Event-driven automation |

Copy the token immediately -- it is shown only once
PATs expire after a maximum of 90 days

Step 2: Store Credentials Securely

# .env (NEVER commit to git)
FIGMA_PAT="figd_your-personal-access-token"
FIGMA_FILE_KEY="abc123XYZdefaultFileKey"

# .gitignore
.env
.env.local
.env.*.local

Step 3: Verify Connection

# Test with curl -- should return your user profile
curl -s -H "X-Figma-Token: ${FIGMA_PAT}" \
  https://api.figma.com/v1/me | jq '.handle, .email'

// verify-figma.ts
const PAT = process.env.FIGMA_PAT!;

const res = await fetch('https://api.figma.com/v1/me', {
  headers: { 'X-Figma-Token': PAT },
});

if (!res.ok) throw new Error(`Figma auth failed: ${res.status}`);
const me = await res.json();
console.log(`Authenticated as ${me.handle} (${me.email})`);

Step 4: OAuth 2.0 (For User-Facing Apps)

Use OAuth when your app needs to act on behalf of other Figma users.

// 1. Redirect user to Figma authorization URL
const authUrl = new URL('https://www.figma.com/oauth');
authUrl.searchParams.set('client_id', process.env.FIGMA_CLIENT_ID!);
authUrl.searchParams.set('redirect_uri', 'https://yourapp.com/auth/callback');
authUrl.searchParams.set('scope', 'file_content:read,file_comments:write');
authUrl.searchParams.set('state', crypto.randomUUID());
authUrl.searchParams.set('response_type', 'code');
// Redirect: res.redirect(authUrl.toString());

// 2. Exchange code for access token (must happen within 30 seconds)
async function exchangeCode(code: string): Promise<string> {
  const res = await fetch('https://api.figma.com/v1/oauth/token', {
    method: 'POST',
    headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
    body: new URLSearchParams({
      client_id: process.env.FIGMA_CLIENT_ID!,
      client_secret: process.env.FIGMA_CLIENT_SECRET!,
      redirect_uri: 'https://yourapp.com/auth/callback',
      code,
      grant_type: 'authorization_code',
    }),
  });
  const { access_token, refresh_token, expires_in } = await res.json();
  // Store refresh_token securely for later use
  return access_token;
}

// 3. Refresh expired tokens
async function refreshToken(refreshToken: string): Promise<string> {
  const res = await fetch('https://api.figma.com/v1/oauth/refresh', {
    method: 'POST',
    headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
    body: new URLSearchParams({
      client_id: process.env.FIGMA_CLIENT_ID!,
      client_secret: process.env.FIGMA_CLIENT_SECRET!,
      refresh_token: refreshToken,
    }),
  });
  const { access_token } = await res.json();
  return access_token;
}

Output

Personal access token stored in .env
Successful GET /v1/me returning your user handle
(Optional) OAuth flow with token exchange working

Error Handling

| Error | Status | Cause | Solution | |-------|--------|-------|----------| | 403 Forbidden | 403 | Token lacks required scope | Regenerate PAT with correct scopes | | Invalid token | 403 | Expired or revoked PAT | Generate a new token (90-day max) | | OAuth code expired | 400 | Code exchange took >30s | Retry auth flow; exchange immediately | | Invalid redirect_uri | 400 | Redirect URL mismatch | Must match URL registered in Figma OAuth app settings | | Rate limited | 429 | Too many auth attempts | Wait for Retry-After header value |

Examples

Reusable Figma Client Wrapper

// src/figma-client.ts
export function figmaFetch(path: string, options: RequestInit = {}) {
  const token = process.env.FIGMA_PAT;
  if (!token) throw new Error('FIGMA_PAT environment variable is not set');

  return fetch(`https://api.figma.com${path}`, {
    ...options,
    headers: {
      'X-Figma-Token': token,
      'Content-Type': 'application/json',
      ...options.headers,
    },
  });
}

// Usage
const file = await figmaFetch(`/v1/files/${fileKey}`).then(r => r.json());

Resources

Next Steps

After successful auth, proceed to figma-hello-world for your first real API call.

Agent Skills: Figma Install & Auth

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