Discover what you can move
Lists the chains and tokens available to move between, flagging anything unavailable with a reason code; token lists are paginated, chains are not.
Anchor all four of originChainId/originToken/destinationChainId/destinationToken to get fundingMethods and amountTypes — availability means selectable, not priceable, and POST /v1/quotes is the binding check.
Authorization
bearerAuth AuthorizationBearer <token>
API key for authentication.
In: header
Query Parameters
include?array<>
Sub-collections to include. Defaults to [chains, tokens].
originChainId?integer
Range
1 <= valueoriginToken?string
Token address or symbol. Requires originChainId — the same symbol exists on many chains.
destinationChainId?integer
Range
1 <= valuedestinationToken?string
Token address or symbol. Requires destinationChainId — the same symbol exists on many chains.
reachableOnly?boolean
Restrict each side's token list to tokens available from the opposite anchor. Filters on the available flag exactly, so it also drops a row that is reachable but carries no_price_feed — see available for the full predicate.
search?string
Free-text match on token symbol, name, or address.
capabilities.fundingMethods?array<>
The funding methods your client can execute. Read as any-of -- listing approval,permit2 means either works, not that both are required.
Tokens you cannot fund come back available: false with unsupported_funding_method, so you never surface a route you have no way to execute. Omit it to narrow nothing.
wallets?array<string>
One address per namespace; used to resolve indicative wallet balances.
limit?integer
Page size per token side. Values above 100 are rejected.
Default
10Range
1 <= value <= 100originCursor?string
Opaque cursor from pagination.origin.nextCursor, to page through the origin token list.
If the underlying set changes between pages the request fails with 409 conflict.cursor_expired -- start again from the first page.
destinationCursor?string
Opaque cursor from pagination.destination.nextCursor, to page through the destination token list.
If the underlying set changes between pages the request fails with 409 conflict.cursor_expired -- start again from the first page.
Response Body
application/json
application/json
application/json
application/json
application/json
curl -X GET "https://api.staging.across.to/v1/capabilities?include=chains&include=tokens&originChainId=42161&originToken=0xaf88d065e77c8cC2239327C5EDb3A432268e5831&destinationChainId=8453&destinationToken=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913&limit=5"{
"meta": {
"versionedAt": "2026-08-18T21:53:03.477Z",
"catalogSource": "live",
"balances": "not_requested"
},
"originTokens": [
{
"chainId": 42161,
"address": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"symbol": "USDC",
"name": "USD Coin",
"decimals": 6,
"logoUrl": "https://raw.githubusercontent.com/trustwallet/assets/master/blockchains/ethereum/assets/0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48/logo.png",
"priceUsd": 0.999736,
"popular": true,
"available": true,
"unavailableReasons": [],
"fundingMethods": [
"erc3009",
"permit2",
"approval"
],
"verified": true
}
],
"destinationTokens": [
{
"chainId": 8453,
"address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"symbol": "USDC",
"name": "USD Coin",
"decimals": 6,
"logoUrl": "https://ethereum-optimism.github.io/data/USDC/logo.png",
"priceUsd": 0.999736,
"popular": true,
"available": true,
"unavailableReasons": [],
"fundingMethods": [
"erc3009",
"permit2",
"approval"
],
"verified": true
}
],
"pagination": {
"origin": {
"total": 1
},
"destination": {
"total": 1
}
},
"chains": [
{
"chainId": 1,
"name": "mainnet",
"displayName": "Mainnet",
"namespace": "evm",
"explorerUrl": "https://etherscan.io",
"logoUrl": "https://alexandria.across.to/assets/chains/mainnet.svg",
"nativeToken": {
"symbol": "ETH",
"decimals": 18
},
"publicRpcUrl": "https://eth.llamarpc.com",
"popular": true,
"canBeOrigin": true,
"canBeDestination": true
},
{
"chainId": 8453,
"name": "base",
"displayName": "Base",
"namespace": "evm",
"explorerUrl": "https://basescan.org",
"logoUrl": "https://alexandria.across.to/assets/chains/base.svg",
"nativeToken": {
"symbol": "ETH",
"decimals": 18
},
"publicRpcUrl": "https://mainnet.base.org",
"popular": true,
"canBeOrigin": true,
"canBeDestination": true
},
{
"chainId": 130,
"name": "unichain",
"displayName": "Unichain",
"namespace": "evm",
"explorerUrl": "https://uniscan.xyz",
"logoUrl": "https://alexandria.across.to/assets/chains/unichain.svg",
"nativeToken": {
"symbol": "ETH",
"decimals": 18
},
"publicRpcUrl": "https://mainnet.unichain.org/",
"popular": true,
"canBeOrigin": true,
"canBeDestination": true
},
{
"chainId": 42161,
"name": "arbitrum-one",
"displayName": "Arbitrum One",
"namespace": "evm",
"explorerUrl": "https://arbiscan.io",
"logoUrl": "https://alexandria.across.to/assets/chains/arbitrum.svg",
"nativeToken": {
"symbol": "ETH",
"decimals": 18
},
"publicRpcUrl": "https://arb1.arbitrum.io/rpc",
"popular": true,
"canBeOrigin": true,
"canBeDestination": true
},
{
"chainId": 43114,
"name": "avalanche",
"displayName": "Avalanche",
"namespace": "evm",
"explorerUrl": "https://snowscan.xyz",
"logoUrl": "https://alexandria.across.to/assets/chains/avalanche.svg",
"nativeToken": {
"symbol": "AVAX",
"decimals": 18
},
"publicRpcUrl": "https://api.avax.network/ext/bc/C/rpc",
"popular": false,
"canBeOrigin": true,
"canBeDestination": true
},
{
"chainId": 56,
"name": "bnb-smart-chain",
"displayName": "BNB Smart Chain",
"namespace": "evm",
"explorerUrl": "https://bscscan.com",
"logoUrl": "https://alexandria.across.to/assets/chains/bsc.svg",
"nativeToken": {
"symbol": "BNB",
"decimals": 18
},
"publicRpcUrl": "https://bsc-dataseed1.binance.org",
"popular": false,
"canBeOrigin": true,
"canBeDestination": true
},
{
"chainId": 1337,
"name": "hypercore",
"displayName": "HyperCore",
"namespace": "evm",
"explorerUrl": "https://app.hyperliquid.xyz/explorer",
"logoUrl": "https://alexandria.across.to/assets/chains/hypercore.svg",
"nativeToken": {
"symbol": "HYPE",
"decimals": 18
},
"publicRpcUrl": "https://api.hyperliquid.xyz",
"popular": false,
"canBeOrigin": true,
"canBeDestination": true
},
{
"chainId": 999,
"name": "hyperevm",
"displayName": "HyperEVM",
"namespace": "evm",
"explorerUrl": "https://hyperevmscan.io/",
"logoUrl": "https://alexandria.across.to/assets/chains/hyperevm.svg",
"nativeToken": {
"symbol": "HYPE",
"decimals": 18
},
"publicRpcUrl": "https://rpc.hyperliquid.xyz/evm",
"popular": false,
"canBeOrigin": true,
"canBeDestination": true
},
{
"chainId": 57073,
"name": "ink",
"displayName": "Ink",
"namespace": "evm",
"explorerUrl": "https://explorer.inkonchain.com",
"logoUrl": "https://alexandria.across.to/assets/chains/ink.svg",
"nativeToken": {
"symbol": "ETH",
"decimals": 18
},
"publicRpcUrl": "https://rpc-gel.inkonchain.com",
"popular": false,
"canBeOrigin": true,
"canBeDestination": true
},
{
"chainId": 2337,
"name": "lighter",
"displayName": "Lighter",
"namespace": "evm",
"explorerUrl": "https://app.lighter.xyz/explorer",
"logoUrl": "https://alexandria.across.to/assets/chains/lighter.svg",
"nativeToken": {
"symbol": "LIT",
"decimals": 18
},
"publicRpcUrl": "https://mainnet.zklighter.elliot.ai",
"popular": false,
"canBeOrigin": false,
"canBeDestination": true
},
{
"chainId": 59144,
"name": "linea",
"displayName": "Linea",
"namespace": "evm",
"explorerUrl": "https://lineascan.build",
"logoUrl": "https://alexandria.across.to/assets/chains/linea.svg",
"nativeToken": {
"symbol": "ETH",
"decimals": 18
},
"publicRpcUrl": "https://rpc.linea.build",
"popular": false,
"canBeOrigin": true,
"canBeDestination": true
},
{
"chainId": 4326,
"name": "megaeth",
"displayName": "MegaETH",
"namespace": "evm",
"explorerUrl": "https://megaeth.blockscout.com",
"logoUrl": "https://alexandria.across.to/assets/chains/megaeth.svg",
"nativeToken": {
"symbol": "ETH",
"decimals": 18
},
"publicRpcUrl": "https://mainnet.megaeth.com/rpc",
"popular": false,
"canBeOrigin": true,
"canBeDestination": true
},
{
"chainId": 143,
"name": "monad",
"displayName": "Monad",
"namespace": "evm",
"explorerUrl": "https://monadvision.com",
"logoUrl": "https://alexandria.across.to/assets/chains/monad.svg",
"nativeToken": {
"symbol": "MON",
"decimals": 18
},
"publicRpcUrl": "https://rpc-mainnet.monadinfra.com",
"popular": false,
"canBeOrigin": true,
"canBeDestination": true
},
{
"chainId": 10,
"name": "optimism",
"displayName": "Optimism",
"namespace": "evm",
"explorerUrl": "https://optimistic.etherscan.io",
"logoUrl": "https://alexandria.across.to/assets/chains/optimism.svg",
"nativeToken": {
"symbol": "ETH",
"decimals": 18
},
"publicRpcUrl": "https://mainnet.optimism.io",
"popular": false,
"canBeOrigin": true,
"canBeDestination": true
},
{
"chainId": 9745,
"name": "plasma",
"displayName": "Plasma",
"namespace": "evm",
"explorerUrl": "https://plasmascan.to",
"logoUrl": "https://alexandria.across.to/assets/chains/plasma.svg",
"nativeToken": {
"symbol": "XPL",
"decimals": 18
},
"publicRpcUrl": "https://rpc.plasma.to",
"popular": false,
"canBeOrigin": true,
"canBeDestination": true
},
{
"chainId": 137,
"name": "polygon",
"displayName": "Polygon",
"namespace": "evm",
"explorerUrl": "https://polygonscan.com",
"logoUrl": "https://alexandria.across.to/assets/chains/polygon.svg",
"nativeToken": {
"symbol": "POL",
"decimals": 18
},
"publicRpcUrl": "https://polygon-rpc.com",
"popular": false,
"canBeOrigin": true,
"canBeDestination": true
},
{
"chainId": 4663,
"name": "robinhood",
"displayName": "Robinhood",
"namespace": "evm",
"explorerUrl": "https://robinhoodchain.blockscout.com",
"logoUrl": "https://alexandria.across.to/assets/chains/robinhood.svg",
"nativeToken": {
"symbol": "ETH",
"decimals": 18
},
"publicRpcUrl": "https://rpc.mainnet.chain.robinhood.com",
"popular": false,
"canBeOrigin": true,
"canBeDestination": true
},
{
"chainId": 4217,
"name": "tempo",
"displayName": "Tempo",
"namespace": "evm",
"explorerUrl": "https://explore.mainnet.tempo.xyz",
"logoUrl": "https://alexandria.across.to/assets/chains/tempo.svg",
"nativeToken": {
"symbol": "pathUSD",
"decimals": 6
},
"publicRpcUrl": "https://rpc.tempo.xyz",
"popular": false,
"canBeOrigin": true,
"canBeDestination": true
},
{
"chainId": 728126428,
"name": "tron",
"displayName": "TRON",
"namespace": "tron",
"explorerUrl": "https://tronscan.org",
"logoUrl": "https://alexandria.across.to/assets/chains/tron.svg",
"nativeToken": {
"symbol": "TRX",
"decimals": 6
},
"publicRpcUrl": "https://api.trongrid.io/jsonrpc",
"popular": false,
"canBeOrigin": true,
"canBeDestination": true
},
{
"chainId": 480,
"name": "world-chain",
"displayName": "World Chain",
"namespace": "evm",
"explorerUrl": "https://worldchain-mainnet-explorer.alchemy.com",
"logoUrl": "https://alexandria.across.to/assets/chains/world-chain.svg",
"nativeToken": {
"symbol": "ETH",
"decimals": 18
},
"publicRpcUrl": "https://worldchain-mainnet.g.alchemy.com/public",
"popular": false,
"canBeOrigin": true,
"canBeDestination": true
}
],
"capabilities": {
"fundingMethods": [
"erc3009",
"permit2",
"approval"
],
"amountTypes": [
"exact_input",
"exact_output",
"min_output"
],
"limits": {
"max": {
"token": "10000000000000",
"usd": 9999350
},
"validUntil": "2026-08-18T21:57:03.477Z"
}
}
}{
"error": {
"type": "request",
"code": "request.invalid_param",
"message": "limit must be an integer between 1 and 100",
"param": "limit",
"requestId": "6ovgro9uc2nqktp2uurgto7ino"
}
}{
"code": "unauthenticated",
"message": "the request does not have valid authentication credentials for the operation",
"details": null
}{
"code": "unauthenticated",
"message": "the request does not have valid authentication credentials for the operation",
"details": {}
}{
"error": {
"type": "request",
"code": "request.invalid_json",
"message": "string",
"param": "string",
"requestId": "string",
"details": {
"balanceCheck": {
"chainId": 0,
"token": "string",
"requiredAmount": "string",
"observedBalance": "string",
"blockNumber": 0,
"observedAt": "2019-08-24T14:15:22Z"
}
}
}
}API Reference
One API for moving money across chains.
Price a transfer POST
Prices one transfer and returns everything needed to execute it: `destination.amount` (expected) alongside `destination.minimumAmount` (the guaranteed floor), an itemised fee breakdown, `expiresAt`, and every action to sign or send. A quote is an offer, not a commitment, but approval-funded quotes escrow on-chain via `store()` before you submit. `quoteId` is also the id you track the transfer by.