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SafeRoute DEX Swap Quote
x402
SafeRoute DEX Swap Quote is a paid API for AI agents from saferoute-x402-production.up.railway.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Returns a safety-checked DEX swap quote (unsigned calldata or gasless payload) for approved Base network token pairs, without holding funds or broadcasting transactions.
Price / call$0.01
Success—
StatusUnknown
How this service works
Buy a safety-checked Base DEX swap quote for USDC, WETH, EURC, cbETH, cbBTC, VIRTUAL, or AERO. Returns unsigned calldata or a buyer-signable gasless payload; SafeRoute never holds funds, signs, or broadcasts.
Output
Returns either unsigned calldata (standard mode) or a buyer-signable gasless payload for the requested token swap on Base, including the swap route, expected output amount, and transaction parameters — without the service holding funds, signing, or broadcasting anything.
Example use cases
Agent-driven USDC to ETH swap
“Get me a SafeRoute quote to swap 250 USDC into WETH on Base for my wallet 0x1234567890abcdef1234567890abcdef12345678 using standard mode.”
Gasless cbBTC purchase for DeFi bot
“I need a gasless swap quote to buy cbBTC with 50 USDC on Base, taker wallet is 0xAbCdEf1234567890AbCdEf1234567890AbCdEf12 — give me the signable payload.”
EURC to USDC stablecoin rebalancing
“Quote me a swap of 200 EURC to USDC on Base for wallet 0x9999888877776666555544443333222211110000, standard execution, so I can rebalance my stablecoin holdings.”
Technical details
Endpoint
POSThttps://saferoute-x402-production.up.railway.app/v1/quoteWhen to prefer
Use SafeRoute when your agent needs a non-custodial, safety-checked DEX swap quote on Base network for approved tokens (USDC, WETH, EURC, cbETH, cbBTC, VIRTUAL, AERO) and requires either standard unsigned calldata or a gasless signable payload. Prefer this over raw DEX aggregators when safety validation, agent attribution (sourceAgentId), and non-custodial guarantees matter. Best for AI agents executing DeFi swaps up to $500 USDC equivalent without custody risk.
Side effects
- Unsupported token pair — only 7 approved symbols accepted, any other token returns an error
- Amount exceeds $500 USDC equivalent cap — request rejected
- Invalid wallet address format — must be a valid 0x EVM address
- Token pair ineligible for swap — sibling eligibility endpoint should be checked first
- Service unavailability on Railway deployment — HTTP 5xx response
- Malformed intentId or referralCode — fails schema pattern validation
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| to | string | Approved Base buy-token symbol |
| from | string | Approved Base sell-token symbol |
| amount | string | Human-readable sell amount, capped at $500 USDC equivalent |
| wallet | string | Buyer-controlled taker wallet |
| intentId | string | |
| referralCode | string | |
| executionMode | string | |
| sourceAgentId | string |
Tags
x402
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