402rates.com
GET api.402rates.com/v1/settlement/costs
Why an agent can trust this route.
Sonar evidence is advisory. Paid delivery is shown as verified only when paid probes are available; otherwise route estimates use the unpaid handshake as a clearly labeled proxy.
Observed outcomes
Measured USDC transfer costs on Base, Polygon, Arbitrum, Ethereum and XDC: simulated gas, current token prices, fresh chain heads and applicable rollup L1 fees. Inputs and block references accompany each figure. Cheapest first; unmeasurable chains are excluded, not estimated. Business/professional use only. Terms: https://402rates.com/data-terms/
Resource: api.402rates.com/v1/settlement/costs
Network: eip155:8453, eip155:137, eip155:42161, eip155:50 · Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 · Pay to: 0xf567Cfe0FDb87A1D6Ca330e3f30f0D3DA0F7cb98
Payment methods: — · Last validation: 2026-09-14 16:12:04.081+00
{
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"properties": {
"chains": {
"type": "string",
"pattern": "^(base|polygon|arbitrum|ethereum|xdc)(,(base|polygon|arbitrum|ethereum|xdc))*$",
"description": "comma-separated list of: base, polygon, arbitrum, ethereum, xdc. Order does not matter and duplicates are ignored. Omit it to price all five, which is the usual call and costs exactly the same."
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
},
"paymentRequirements": [
{
"raw": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf567Cfe0FDb87A1D6Ca330e3f30f0D3DA0F7cb98",
"amount": "10000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xf567Cfe0FDb87A1D6Ca330e3f30f0D3DA0F7cb98",
"scheme": "exact",
"network": "eip155:8453",
"amountAtomic": "10000"
},
{
"raw": {
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf567Cfe0FDb87A1D6Ca330e3f30f0D3DA0F7cb98",
"amount": "10000",
"scheme": "exact",
"network": "eip155:137",
"maxTimeoutSeconds": 300
},
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"payTo": "0xf567Cfe0FDb87A1D6Ca330e3f30f0D3DA0F7cb98",
"scheme": "exact",
"network": "eip155:137",
"amountAtomic": "10000"
},
{
"raw": {
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xf567Cfe0FDb87A1D6Ca330e3f30f0D3DA0F7cb98",
"amount": "10000",
"scheme": "exact",
"network": "eip155:42161",
"maxTimeoutSeconds": 300
},
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"payTo": "0xf567Cfe0FDb87A1D6Ca330e3f30f0D3DA0F7cb98",
"scheme": "exact",
"network": "eip155:42161",
"amountAtomic": "10000"
},
{
"raw": {
"asset": "0xfA2958CB79b0491CC627c1557F441eF849Ca8eb1",
"extra": {
"name": "USDC",
"version": "2"
},
"payTo": "0xedb1a894761F0a142d80D09F82Ff7CF99158Bb19",
"amount": "10000",
"scheme": "exact",
"network": "eip155:50",
"maxTimeoutSeconds": 120
},
"asset": "0xfA2958CB79b0491CC627c1557F441eF849Ca8eb1",
"payTo": "0xedb1a894761F0a142d80D09F82Ff7CF99158Bb19",
"scheme": "exact",
"network": "eip155:50",
"amountAtomic": "10000"
}
]
}Source catalog records are retained separately from live endpoint observations. Sonar score, uptime, and latency are advisory metrics. CDP indexing is not inferred from validation.