> ## Documentation Index > Fetch the complete documentation index at: https://docs.calibri.io/llms.txt > Use this file to discover all available pages before exploring further. # Cross-chain deposit config > The chains you can deposit USDC from besides Polygon, each with its minimum, typical time to credit and current fee estimate, plus your deposit address (the same on every chain). USDC sent to that address on a listed chain is bridged to Polygon and credited automatically. Only USDC, and only on the listed chains. ## OpenAPI ````yaml /api-reference/openapi/calibri.yaml get /api/v2/atlas/account/bridge/config openapi: 3.1.0 info: title: Calibri API version: 1.0.0 description: >- The Calibri API. Discover markets, read live books, place signed orders, and manage positions and account data. Routed by path prefix to the service that answers it — which is an implementation detail, not something a caller has to reason about. servers: - description: Production url: https://calibri.io security: [] tags: - name: Health description: Service liveness. x-displayName: Health - name: Events description: Discover events and their metadata. x-displayName: Events - name: Markets description: List markets and load market detail for trading. x-displayName: Markets - name: Series description: Recurring event series. x-displayName: Series - name: Tags description: Editorial shelves used to browse the catalogue. x-displayName: Tags - name: Market Data description: Order book, depth, trade tape, tickers, and candles. x-displayName: Market Data - name: Assets description: Underlying asset price history for price-feed markets. x-displayName: Assets - name: Community description: Leaderboard and platform activity. x-displayName: Community - name: Currencies description: Currency registry. x-displayName: Currencies - name: Trade description: Place, list, and cancel orders. x-displayName: Trade - name: Positions description: Your matched contracts. x-displayName: Positions - name: Wallet description: Self-custody Safe, passkey, session keys, and relay. x-displayName: Wallet - name: Rewards description: Maker rebates and referral earnings. x-displayName: Rewards - name: Account description: Balances, ledger, PnL, limits, preferences, and profile. x-displayName: Account - name: Categories description: Categories x-displayName: Categories - name: Other description: Other x-displayName: Other externalDocs: description: '' url: '' paths: /api/v2/atlas/account/bridge/config: get: tags: - Other summary: Cross-chain deposit config description: >- The chains you can deposit USDC from besides Polygon, each with its minimum, typical time to credit and current fee estimate, plus your deposit address (the same on every chain). USDC sent to that address on a listed chain is bridged to Polygon and credited automatically. Only USDC, and only on the listed chains. parameters: [] responses: '200': content: application/json: schema: $ref: '#/components/schemas/BridgeConfigEntity' description: '' security: - apiKey: [] components: schemas: BridgeConfigEntity: properties: address: description: >- Your Safe, checksummed — the same address on every supported chain. Send USDC here on any listed chain. `null` when there is no address you can safely deposit to from another chain; `reason` says why. example: '0x5aAeb6053F3E94C9b9A09f33669435E7Ef1BeAed' type: - string - 'null' chains: description: >- Chains you can deposit from (`deposits_enabled`) or withdraw to (`withdrawals_enabled`). Deposit chains are listed only when `address` is set, and a chain is not offered for deposits when a deposit from it to your address cannot currently be confirmed to work. Every active chain that takes withdrawals is listed, whether or not it is offered for deposits. items: $ref: '#/components/schemas/BridgeChainEntity' type: array custodial_address: description: >- Your custodial deposit address, if you have one (same on every chain). example: null type: - string - 'null' polygon: $ref: '#/components/schemas/BridgePolygonEntity' description: >- Polygon, the chain your wallet is on: its chain id and explorer templates. reason: description: >- `null` when the addresses are shown. Otherwise why they are not: `not_supported_for_this_wallet` (deposits from other chains cannot reach this wallet), `quote_unavailable` (temporarily — try again shortly), `no_deposit_address` (no wallet set up yet), or another code from the relayer. example: null type: - string - 'null' required: - chains - address - custodial_address - reason - polygon type: object BridgeChainEntity: properties: chain_id: description: EVM chain id of the source chain. example: 1 type: number deposits_enabled: description: >- Whether you can deposit from this chain. A chain can be listed for withdrawals only (then `false`, and `fee_estimate` is `null`); show only these on the deposit page. example: true type: boolean eta_minutes: description: Typical minutes from deposit to credit. example: 17 type: number explorer_address: description: >- Block-explorer URL template for an address on this chain, with an `#{address}` placeholder. `null` when not configured. example: https://etherscan.io/address/#{address} type: - string - 'null' explorer_transaction: description: >- Block-explorer URL template for a transaction on this chain, with a `#{txid}` placeholder. `null` when not configured. example: https://etherscan.io/tx/#{txid} type: - string - 'null' fee_cap_abs: description: Absolute fee cap in USDC. example: '10' type: string fee_cap_bps: description: >- Fee cap as basis points of the bridged amount. The fee is at most the smaller of the two caps. example: 2000 type: number fee_estimate: description: >- Current fee estimate in USDC for a deposit from this chain (cached up to 60 s). `null` when no estimate is available — the fee is then at most the cap. example: '1.84' type: - string - 'null' key: description: Source chain key. example: ethereum type: string min_amount: description: >- Smallest total, in USDC, that is bridged. Below it the deposit waits; later deposits on the same chain are added to it and bridged together, for one fee. example: '20' type: string name: description: Display name. example: Ethereum type: string withdraw_min_amount: description: Smallest withdrawal to this chain, in USDC. `null` when not set. example: '20' type: - string - 'null' withdraw_min_fee: description: >- Withdrawal fee floor in USDC: the fee is never below it. `null` when not set. example: '3' type: - string - 'null' withdrawals_enabled: description: >- Whether you can withdraw to this chain (`GET /account/bridge/withdraw/quote`). example: true type: boolean required: - key - name - chain_id - min_amount - eta_minutes - fee_estimate - fee_cap_abs - fee_cap_bps - deposits_enabled - withdrawals_enabled - withdraw_min_amount - withdraw_min_fee - explorer_transaction - explorer_address type: object BridgePolygonEntity: properties: chain_id: description: >- EVM chain id of Polygon (where your wallet lives). `null` when unavailable. example: 137 type: - number - 'null' explorer_address: description: >- Explorer URL template for a Polygon address (`#{address}`), or `null`. example: https://polygonscan.com/address/#{address} type: - string - 'null' explorer_transaction: description: >- Explorer URL template for a Polygon transaction (`#{txid}`), or `null`. example: https://polygonscan.com/tx/#{txid} type: - string - 'null' required: - chain_id - explorer_transaction - explorer_address type: object securitySchemes: apiKey: description: >- HMAC-signed API key. Send X-Auth-Apikey, X-Auth-Nonce and X-Auth-Signature. in: header name: X-Auth-Apikey type: apiKey ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.