API

MissingNo Developer API

Programmatic access to the MissingNo card catalogue — sets, cards, traders, and more. Build apps, bots, price trackers, or collection tools.

Sign up for freeView endpoints

Authentication

All requests require an API key. Generate one free at /profile/keys. Send it using any of the methods below:

Authorization header

Authorization: Bearer mn_live_…

X-Api-Key header

X-Api-Key: mn_live_…

Query param

/api/v1/cards?api_key=mn_live_…
Base URLhttps://your-domain.com/api/v1

Plans

Start free. Upgrade when you need more.

Free

$0forever
  • 100 requests / hour
  • All GET endpoints
  • Paginated card listings
  • Set + series data
  • Trader profiles
  • Up to 5 API keys
Get started free
Popular

Pro

$9per month
  • 1,000 requests / hour
  • Everything in Free
  • Higher rate limits
  • Priority support
  • Early access to new endpoints
Upgrade to Pro

Endpoints

Click an endpoint to see parameters and example responses.

Rate Limits

Free tier

100 requests per hour, per key

Pro tier

1,000 requests per hour, per key

When a rate limit is exceeded the API returns 429 Too Many Requests. The window resets every hour.

Ready to start building?

Generate your free API key in seconds.

Create free account