GUM: Universal Deposit logoGUM: Universal Deposit
Pick a destination. Request deposit addresses. Send. Fees and minimums come back per chain. Solana is chain ID 900 in this API.
devrels.xyz/a/299GUM Universal Deposit gets USDC to a wallet on a supported chain. You pick the destination. You send USDC (or a supported token) on another supported chain. Swap and bridge are handled for you. Overview: docs.gum.ag/universal-deposit/overview. Live events: explorer.gum.ag.
Product site: gum.ag, billed as an omnichain identity and liquidity layer. This piece is the deposit API, not a recap of identity.
Chains
| Chain | GUM chain ID | Address |
|---|---|---|
| Solana | 900 | base58 32-byte pubkey |
| Base | 8453 | 0x + 40 hex |
| Arbitrum | 42161 | 0x + 40 hex |
| Sui | 101 | 0x + 64 hex |
Any of those can be source or destination. The destination chain is not offered as a deposit option for itself. Solana here is 900, not Sui 101.
API
Public GET. Docs playground: GET /v2/deposit-addresses with required chainId (destination) and destinationAddress. Response chains[] has per-source depositAddress, USDC tokenAddress, minDeposit, feesUsd, and status.code 0 healthy / 1 degraded / 2 down. Empty addresses means that chain is down. Do not send.
Non-USDC is gated per token per chain. Call GET /token-support with chainId and targetTokenAddress. Reasons include native_usdc, swappable, no_route, quote_unavailable, swap_disabled, chain_unavailable. If swappable, send at least swapConstraints.minInputAmountRaw. Swap cost is in the conversion, not a second fee. If the swap cannot clear its minimum output, funds refund to the receiver instead of under-filling.
# destination = Solana (GUM chainId 900)
GET /v2/deposit-addresses?chainId=900&destinationAddress=<base58>
# before sending a non-USDC token
GET /token-support?chainId=<source>&targetTokenAddress=<mint-or-contract>Docs do not publish a public API hostname on the overview page. Use the playground on the API reference, or ask Discord for a platform key if you need attribution.
Money rules
Fees are dynamic, typically around $0.30. Always use feesUsd from the response. Below-minimum USDC deposits accumulate on the same address instead of rejecting. Arrival is typically seconds to minutes after source confirmation. Destination explorer is the source of truth. If nothing shows after about five minutes, Discord. Unsupported tokens, or tokens on the wrong chain, are not recoverable.
Resources
Keep reading
Build from debridge.com/develop. Swap API at dln.debridge.finance. Tracking at dln-api.debridge.finance. MCP needs no API key.
Define an intent; Relay solvers fill across 69+ chains — integrate via Quote, Execute, and Status.
Fund a task. Agents compete. You pay the receipt you accept. Five modes. 7.5% platform fee. Production API api.taskmarket.dev on Base 8453.
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