API Configuration

Supported chains and schema information

API Configuration

GET /api/v0/config

Returns the API configuration including supported chains and the EAS schema used for location attestations.

Example

curl "https://api.astral.global/api/v0/config"

Response

{
  "chains": {
    "base-sepolia": true,
    "sepolia": true,
    "arbitrum": true,
    "celo": true,
    "base": false
  },
  "schema": "0xba4171c92572b1e4f241d044c32cdf083be9fd946b8766977558ca6378c824e2",
  "schema_fields": "uint256 eventTimestamp,string srs,string locationType,string location,string[] recipeType,bytes[] recipePayload,string[] mediaType,string[] mediaData,string memo",
  "version": "v0"
}

Response Fields

Field	Type	Description
chains	object	Supported chains and their active status
schema	string	EAS schema UID for location attestations
schema_fields	string	Schema field definitions
version	string	API version

Schema Fields Explained

Field	Type	Description
eventTimestamp	uint256	Unix timestamp of the location event
srs	string	Spatial reference system (e.g., “EPSG:4326”)
locationType	string	Format identifier (e.g., “geojson-point”)
location	string	Stringified location data
recipeType	string[]	Location derivation methods
recipePayload	bytes[]	Method-specific data
mediaType	string[]	MIME types of attached media
mediaData	string[]	Base64-encoded media
memo	string	Optional description

This schema follows the Location Protocol v0.2 specification. Verification is in progress — see Location Records for details.