Otto AI
GET x402.ottoai.services/supported-tokens
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
Search supported ERC-20 tokens by symbol or address across 6 chains (Base, Ethereum, Arbitrum, Polygon, BSC, Avalanche). 5000+ tokens from CoinGecko. Use before swap/bridge to disambiguate tokens.
Resource: x402.ottoai.services/supported-tokens
Network: eip155:8453 · Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 · Pay to: 0x5bB4B0C766E0D5D791d9403Fc275c22064709F68
Payment methods: permit2 · Last validation: 2026-09-13 23:17:33.347+00
{
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"type": "object",
"required": [
"chainId",
"search"
],
"properties": {
"search": {
"type": "string",
"description": "Token symbol or 0x address"
},
"chainId": {
"type": "string",
"description": "Chain ID (8453=Base, 1=Ethereum, 42161=Arbitrum)"
}
}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"properties": {
"status": {
"type": "string"
},
"tokens": {
"type": "array"
}
}
}
}
},
"paymentRequirements": [
{
"raw": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x5bB4B0C766E0D5D791d9403Fc275c22064709F68",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x5bB4B0C766E0D5D791d9403Fc275c22064709F68",
"scheme": "exact",
"network": "eip155:8453",
"amountAtomic": "1000"
},
{
"raw": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"assetTransferMethod": "permit2"
},
"payTo": "0x5bB4B0C766E0D5D791d9403Fc275c22064709F68",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x5bB4B0C766E0D5D791d9403Fc275c22064709F68",
"scheme": "exact",
"network": "eip155:8453",
"amountAtomic": "1000"
}
]
}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.