Slot RPC
Cartridge provides dedicated RPC endpoints for Starknet with authentication and CORS support.
Endpoints
- Mainnet:
https://api.cartridge.gg/x/starknet/mainnet - Sepolia:
https://api.cartridge.gg/x/starknet/sepolia
Pricing
Free for up to 1M requests/month. Additional requests: $5/1M, charged to the team.
Authentication Methods
API Token
curl https://api.cartridge.gg/x/starknet/mainnet \
-H "Authorization: Bearer YOUR_API_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"jsonrpc": "2.0",
"method": "starknet_chainId",
"params": [],
"id": 1
}'Domain Whitelisting
For browser apps, whitelist domains to make direct RPC calls without exposing tokens. Whitelisted domains are rate-limited per IP.
const response = await fetch('https://api.cartridge.gg/x/starknet/mainnet', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
jsonrpc: '2.0',
method: 'starknet_chainId',
params: [],
id: 1,
}),
});Managing API Tokens
# Create a token
slot rpc tokens create <KEY_NAME> --team <TEAM_NAME>
# List tokens
slot rpc tokens list --team <TEAM_NAME>
# Delete a token
slot rpc tokens delete <KEY_ID> --team <TEAM_NAME>Managing CORS Whitelist
Whitelists are specified as root domains; all subdomains are automatically included.
# Add a domain
slot rpc whitelist add <DOMAIN> --team <TEAM_NAME>
# List whitelisted domains
slot rpc whitelist list --team <TEAM_NAME>
# Remove a domain
slot rpc whitelist remove <ENTRY_ID> --team <TEAM_NAME>Viewing Logs
slot rpc logs --team <TEAM_NAME>Options:
--after <CURSOR>: Pagination cursor--limit <NUMBER>: Entries to return (default: 100)--since <DURATION>: Time period (30m,1h,24h)
Examples:
# Last 5 entries from past 30 minutes
slot rpc logs --team my-team --limit 5 --since 30m
# Paginate with cursor
slot rpc logs --team my-team --after <cursor> --limit 5