Data REST API

The canonical public base URL for Monarch's REST Data API is:

https://api.monarchlend.xyz

Use this host for public integrations. Older data.monarchlend.xyz URLs are legacy/internal compatibility endpoints and should not be used as the public endpoint.

Authentication and API keys

In Monarch, open Settings → Developer Options and select Create API key. Copy the key when it is shown and store it securely. Send it with your API request:

curl 'https://api.monarchlend.xyz/v1/markets/metrics?limit=1' \
  -H 'Authorization: Bearer YOUR_API_KEY'

Current public endpoints

The Monarch frontend currently uses these public REST endpoints:

Method	Path	Purpose
GET	/v1/markets/metrics	Market metrics
GET	/v1/risk/assets	Asset risk data
GET	/v1/tokens/metadata	Token metadata lookup
POST	/v1/tokens/metadata	Token metadata batch lookup

Examples

https://api.monarchlend.xyz/v1/markets/metrics?limit=1000&offset=0

https://api.monarchlend.xyz/v1/risk/assets?chain_id=8453

Related API

The indexer GraphQL API is separate from the REST Data API and is available at:

https://indexer.monarchlend.xyz/graphql