Monad Testnet

Sim API endpoints and examples for Monad Testnet (chain ID 10143).

Chain Details

Property	Value
Chain ID	10143
API Name	monad_testnet
Tags	testnet

Supported Endpoints

Endpoint	Supported
Balances	✓
Activity	✗
Transactions	✗
Collectibles	✓
Token Info	✓
Token Holders	✗
DeFi Positions	✗

Example Requests

Use chain_ids=10143 to query Monad Testnet specifically.

Balances

cURL

curl -X GET "https://api.sim.dune.com/v1/evm/balances/0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045?chain_ids=10143" \
  -H "X-Sim-Api-Key: YOUR_API_KEY"

Collectibles

cURL

curl -X GET "https://api.sim.dune.com/v1/evm/collectibles/0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045?chain_ids=10143" \
  -H "X-Sim-Api-Key: YOUR_API_KEY"

Token Info

cURL

curl -X GET "https://api.sim.dune.com/v1/evm/token-info/0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48?chain_ids=10143" \
  -H "X-Sim-Api-Key: YOUR_API_KEY"

See Also

• Supported Chains — full list of chains and endpoint support
• Balances API — endpoint reference and parameters
• Collectibles API — endpoint reference and parameters
• Token Info API — endpoint reference and parameters