1---2name: resources3description: Resources and Links4---5# Resources and Links67## Documentation8- Across Docs: https://docs.across.to9- API Reference: https://docs.across.to/reference/api-reference10- Contract Addresses: https://docs.across.to/reference/contract-addresses11- ERC-7683 Standard: https://erc7683.org1213## SDK and Code14- App SDK (npm): https://www.npmjs.com/package/@across-protocol/app-sdk15- GitHub (protocol): https://github.com/across-protocol16- SDK v2 repo: https://github.com/across-protocol/sdk-v217- API source code (serverless wrapper on SDK v2): https://github.com/across-protocol/frontend-v2/tree/master/api1819## API Base URLs20- Mainnet: `https://app.across.to/api`21- Testnet: `https://testnet.across.to/api`22- Testnet Bridge UI: https://testnet.across.to/bridge2324## Integrator Registration25Register to get your 2-byte hex integrator ID before going to production. This enables support and co-marketing.26- Registration form: https://docs.google.com/forms/d/e/1FAIpQLSe-HY6mzTeGZs91HxObkQmwkMQuH7oy8ngZ1ROiu-f4SR4oMw/viewform2728## ERC-7683 Contracts (AcrossOriginSettler)29| Chain | Address |30|-------|---------|31| Base | 0x4afb570AC68BfFc26Bb02FdA3D801728B0f93C9E |32| Arbitrum | 0xB0B07055F214Ce59ccB968663d3435B9f3294998 |3334## Community and Support35- Discord: https://discord.across.to36- Telegram: linked from https://docs.across.to/resources/support-links37- Twitter/X: linked from https://docs.across.to/resources/support-links38- Medium: linked from https://docs.across.to/resources/support-links3940## Security41- Audits: https://docs.across.to/resources/audits42- Bug Bounty: https://docs.across.to/resources/bug-bounty43- Report bugs: bugs@across.to
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