Fantom Network
Introduction
Fantom is a fast, high-throughput open-source smart contract platform for digital assets and dApps.
Founded in 2018, Fantom is designed to overcome the limitations of previous-generation blockchain platforms. Fantom is permissionless, decentralized, and open-source while achieving fast finality (1-2 second transaction confirmation) and low fees ($0.00001). Furthermore, Fantom is EVM-compatible.
Fantom code is completely open source. Anyone can read it, check on the progress, comment on it, and contribute. Fantom integrates industry-leaders oracle providers Chainlink and Band Protocol for maximum flexibility to access price feeds.
Quick facts
| Property | Value |
|---|---|
| Network name | Fantom Opera |
| Mainnet chainId | 250 |
| Testnet chainId | 4002 |
| Famtom Block Explorer | https://ftmscan.com/ |
| Block time | ~2 seconds |
Supported endpoints
-
api.covalenthq.com/v1/{chainId}/address/{address}/balances_v2/- Get token balances for
address. Return a list of all ERC20 and NFT token balances including ERC721 and ERC1155 along with their current spot prices.
- Get token balances for
-
api.covalenthq.com/v1/{chainId}/address/{address}/transactions_v2/- Retrieve all transactions for
addressincluding their decoded log events. This endpoint does a deep-crawl of the blockchain to retrieve all kinds of transactions that references the address.
- Retrieve all transactions for
-
api.covalenthq.com/v1/{chainId}/address/{address}/transfers_v2/- Get ERC20 token transfers for
addressalong with historical token prices.
- Get ERC20 token transfers for
-
api.covalenthq.com/v1/{chainId}/tokens/{contract_address}/token_holders/- Return a paginated list of token holders
contract_addressas of any historical block height.
- Return a paginated list of token holders
-
api.covalenthq.com/v1/{chainId}/events/address/{contract_address}/- Return a paginated list of decoded log events emitted by a particular smart contract.
-
api.covalenthq.com/v1/{chainId}/events/topics/{topic}/- Return a paginated list of decoded log events with one or more topic hashes separated by a comma.
Go to Covalent’s API Reference
Appendix
Fantom token
The Fantom token FTM is the native token of Fantom. This is similar to Ether in Ethereum. To interact with the Fantom network, FTM tokens are required to pay gas fees. The Covalent API response returns gas_* fields in fiat units.
Token mapping
Covalent maintains an on-chain real-time mapping of token addresses between Ethereum mainnet and the Fantom-Opera chain. These addresses are used to reverse-lookup prices on Fantom and also to return the right token logo urls.
Some example of mapped tokens:
| Token | Ethereum mainnet | Fantom mainnet |
|---|---|---|
| USDT | 0xdac17f958d2ee523a2206206994597c13d831ec7 | 0x1ffbd1e3584f139ca42d77ef99ef99550ecf46a8 |
| YFI | 0x0bc529c00C6401aEF6D220BE8C6Ea1667F6Ad93e | 0xc396b190f251d7f79c583fd06347a09781f085c9 |
For the current token mapping list, see: https://netapi.anyswap.net/bridge/v2/info
Token prices
For tokens that have a mapping back to Ethereum mainnet, the Covalent API is able to return the mapped prices.
Infrastructure Providers
The following provide infrastructure for this blockchain network: