On-chain Uniswap V3 swap quote for any token pair - estimated output amount, eff...
https://api.x402node.dev/defi/swap-quoteOverview
On-chain Uniswap V3 swap quote for any token pair - estimated output amount, effective rate and best fee tier, read directly from pools across Base/Ethereum/Arbitrum/Optimism/Polygon - real-time executable pricing agents need before swapping that LLMs cannot compute. swap quote, swap estimate, uniswap quote, token swap rate, dex quote, how much will i get
Protocol
x402
Price
$0.01
Payment Asset
USD Coin
Payment Network
Base
Category
crypto/defi
Provider
x402node
Source
bazaar
Indexed
2026-06-13 19:15:46
Health
Status
healthy
Latency (p50)
429ms
Uptime (30d)
100.0%
Reliability Score
95/100
Last Checked
2026-08-17 23:49:27
Last Healthy
2026-08-17 23:49:27
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Input Schema
{
"discoverable": true,
"method": "GET",
"queryParams": {
"amount": "Input amount (default 1)",
"chain": "base (default), ethereum, arbitrum, optimism, polygon",
"from": "Source format (optional)",
"to": "Target format (optional)",
"tokenIn": "Input token address (required)",
"tokenOut": "Output token address (required)"
},
"type": "http"
}
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-08-17 23:49:27 | healthy | 402 | 145ms | |
| 2026-08-17 14:27:37 | healthy | 402 | 142ms | |
| 2026-08-17 08:38:31 | healthy | 402 | 144ms | |
| 2026-08-17 03:55:42 | healthy | 402 | 427ms | |
| 2026-08-17 00:05:36 | healthy | 402 | 795ms | |
| 2026-08-16 18:59:34 | healthy | 402 | 434ms | |
| 2026-08-16 10:18:00 | healthy | 402 | 429ms | |
| 2026-08-16 05:33:15 | healthy | 402 | 762ms | |
| 2026-08-16 01:11:38 | healthy | 402 | 440ms | |
| 2026-08-15 19:33:57 | healthy | 402 | 1198ms | |
| 2026-08-15 13:22:44 | healthy | 402 | 429ms | |
| 2026-08-15 09:19:51 | healthy | 402 | 426ms | |
| 2026-08-15 03:16:14 | healthy | 402 | 1074ms |