Claude Code Check - Claude Code Templates

Endpoint

POST/GET /api/claude-code-check Monitors the @anthropic-ai/claude-code npm package for new releases and sends formatted Discord notifications. Runs automatically via Vercel Cron every 30 minutes.

Trigger Methods

Vercel Cron (Automatic)

Configured in vercel.json:

{
  "crons": [{
    "path": "/api/claude-code-check",
    "schedule": "*/30 * * * *"
  }]
}

Runs every 30 minutes.

Manual Trigger

curl -X POST https://www.aitmpl.com/api/claude-code-check

Process Flow

Fetch latest npm version from https://registry.npmjs.org/@anthropic-ai/claude-code/latest
Check database if version already notified
Fetch changelog from GitHub (CHANGELOG.md)
Parse changes using Claude AI (via _parser-claude.js)
Save to database (Neon PostgreSQL)
Send Discord notification with formatted embed
Update metadata tracking

Response

Success - New Version Detected

string

success

string

Version number detected (e.g., 1.2.3)

number

Database ID of the version record

object

Summary of changes

number

Total number of changes

object

Change counts by type (features, fixes, improvements, breaking)

object

Discord notification status

boolean

Whether notification was sent

number

HTTP status code from Discord webhook

Example Success Response

{
  "status": "success",
  "version": "1.2.3",
  "versionId": 42,
  "changes": {
    "total": 12,
    "byType": {
      "features": 5,
      "fixes": 4,
      "improvements": 3,
      "breaking": 0
    }
  },
  "discord": {
    "sent": true,
    "status": 200
  }
}

Success - Already Processed

string

already_processed

string

Version number

string

Explanation message

Example Already Processed Response

{
  "status": "already_processed",
  "version": "1.2.3",
  "message": "Version already notified to Discord"
}

Error Response (500)

string

Error type

string

Error message

string

Stack trace (development mode only)

Example Error Response

{
  "error": "Internal server error",
  "message": "Could not find version 1.2.3 in changelog",
  "details": "Error: Could not find version 1.2.3 in changelog\n    at parseVersionChangelog..."
}

Discord Notification Format

The endpoint sends a rich embed to Discord:

{
  "username": "Claude Code Monitor",
  "avatar_url": "https://raw.githubusercontent.com/anthropics/claude-code/main/assets/icon.png",
  "embeds": [{
    "title": "🚀 Claude Code 1.2.3 Released",
    "description": "A new version of Claude Code is available with **12 changes**!",
    "url": "https://github.com/anthropics/claude-code/blob/main/CHANGELOG.md#123",
    "color": 9067510,
    "fields": [
      {
        "name": "⚠️ Breaking Changes",
        "value": "• Removed deprecated API\n• Changed config format",
        "inline": false
      },
      {
        "name": "✨ New Features",
        "value": "• Added feature X\n• Added feature Y",
        "inline": false
      },
      {
        "name": "⚡ Improvements",
        "value": "• Improved performance\n• Better error messages",
        "inline": false
      },
      {
        "name": "🐛 Bug Fixes",
        "value": "• Fixed crash on startup\n• Fixed memory leak",
        "inline": false
      },
      {
        "name": "📦 Installation",
        "value": "```bash\nnpm install -g @anthropic-ai/claude-code@1.2.3\n```",
        "inline": false
      },
      {
        "name": "🔗 Links",
        "value": "[NPM Package](https://www.npmjs.com/package/@anthropic-ai/claude-code/v/1.2.3) • [Full Changelog](https://github.com/anthropics/claude-code/blob/main/CHANGELOG.md#123)",
        "inline": false
      }
    ],
    "footer": {
      "text": "Claude Code Changelog Monitor",
      "icon_url": "https://avatars.githubusercontent.com/u/100788936?s=200&v=4"
    },
    "timestamp": "2026-02-28T12:34:56.789Z"
  }]
}

Change Categories

⚠️ Breaking Changes: Changes that break backwards compatibility
✨ New Features: New functionality added
⚡ Improvements: Enhancements to existing features
🐛 Bug Fixes: Bug fixes and corrections

Only non-empty categories are included in the embed.

Database Schema

claude_code_versions

Stores version metadata:

CREATE TABLE claude_code_versions (
  id SERIAL PRIMARY KEY,
  version VARCHAR(20) NOT NULL UNIQUE,
  published_at TIMESTAMP NOT NULL,
  changelog_content TEXT,
  npm_url TEXT,
  github_url TEXT,
  discord_notified BOOLEAN DEFAULT false,
  discord_notification_sent_at TIMESTAMP,
  created_at TIMESTAMP DEFAULT NOW()
);

claude_code_changes

Stores individual changes:

CREATE TABLE claude_code_changes (
  id SERIAL PRIMARY KEY,
  version_id INTEGER REFERENCES claude_code_versions(id),
  change_type VARCHAR(50),
  description TEXT,
  category VARCHAR(100),
  created_at TIMESTAMP DEFAULT NOW()
);

discord_notifications_log

Logs Discord webhook calls:

CREATE TABLE discord_notifications_log (
  id SERIAL PRIMARY KEY,
  version_id INTEGER REFERENCES claude_code_versions(id),
  webhook_url TEXT,
  payload JSONB,
  response_status INTEGER,
  response_body TEXT,
  created_at TIMESTAMP DEFAULT NOW()
);

monitoring_metadata

Tracks monitoring statistics:

CREATE TABLE monitoring_metadata (
  id INTEGER PRIMARY KEY,
  last_check_at TIMESTAMP,
  last_version_found VARCHAR(20),
  check_count INTEGER DEFAULT 0,
  error_count INTEGER DEFAULT 0,
  last_error TEXT
);

External Dependencies

NPM Registry API

GET https://registry.npmjs.org/@anthropic-ai/claude-code/latest

Returns package metadata including:

version - Latest version number
time.modified - Publication timestamp

GitHub Changelog

GET https://raw.githubusercontent.com/anthropics/claude-code/main/CHANGELOG.md

Markdown changelog with version sections.

Discord Webhook

POST $DISCORD_WEBHOOK_URL_CHANGELOG

Sends formatted embeds to Discord channel.

Environment Variables

string

required

PostgreSQL connection string for Neon databaseFormat: postgresql://user:pass@host/db?sslmode=require

string

required

Discord webhook URL for changelog notificationsFallback: DISCORD_WEBHOOK_URL

string

Environment mode (development or production)Controls error detail visibility

CORS Support

Access-Control-Allow-Origin: *
Access-Control-Allow-Methods: POST, GET, OPTIONS
Access-Control-Allow-Headers: Content-Type

Preflight OPTIONS requests return 200 OK.

Error Handling

Errors are logged and tracked:

Console logging: All errors logged with context
Database tracking: monitoring_metadata table updated with error count and message
Graceful degradation: Metadata update failures don’t crash the endpoint

Example Manual Trigger

# Trigger check
curl -X POST https://www.aitmpl.com/api/claude-code-check

# Response
{
  "status": "success",
  "version": "1.2.3",
  "versionId": 42,
  "changes": {
    "total": 12,
    "byType": {
      "features": 5,
      "fixes": 4,
      "improvements": 3,
      "breaking": 0
    }
  },
  "discord": {
    "sent": true,
    "status": 200
  }
}

Monitoring

Check monitoring health:

SELECT 
  last_check_at,
  last_version_found,
  check_count,
  error_count,
  last_error
FROM monitoring_metadata
WHERE id = 1;

View recent notifications:

SELECT 
  v.version,
  v.discord_notification_sent_at,
  l.response_status
FROM claude_code_versions v
LEFT JOIN discord_notifications_log l ON v.id = l.version_id
ORDER BY v.created_at DESC
LIMIT 10;

Notes

The endpoint is idempotent: duplicate checks for the same version return already_processed
Changelog content is truncated to 50,000 characters before storage
GitHub URL uses version without dots (e.g., #123 for version 1.2.3)
Parser uses Claude AI (via _parser-claude.js) for intelligent changelog parsing
All timestamps stored in ISO 8601 format with timezone
Webhook URL can be overridden with DISCORD_WEBHOOK_URL_CHANGELOG environment variable

​Endpoint

​Trigger Methods

​Vercel Cron (Automatic)

​Manual Trigger

​Process Flow

​Response

​Success - New Version Detected

​Example Success Response

​Success - Already Processed

​Example Already Processed Response

​Error Response (500)

​Example Error Response

​Discord Notification Format

​Change Categories

​Database Schema

​claude_code_versions

​claude_code_changes

​discord_notifications_log

​monitoring_metadata

​External Dependencies

​NPM Registry API

​GitHub Changelog

​Discord Webhook

​Environment Variables

​CORS Support

​Error Handling

​Example Manual Trigger

​Monitoring

​Notes

Endpoint

Trigger Methods

Vercel Cron (Automatic)

Manual Trigger

Process Flow

Response

Success - New Version Detected

Example Success Response

Success - Already Processed

Example Already Processed Response

Error Response (500)

Example Error Response

Discord Notification Format

Change Categories

Database Schema

claude_code_versions

claude_code_changes

discord_notifications_log

monitoring_metadata

External Dependencies

NPM Registry API

GitHub Changelog

Discord Webhook

Environment Variables

CORS Support

Error Handling

Example Manual Trigger

Monitoring

Notes