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Routheus DAG Quote — Multichain DEX Swap Router
x402
Routheus DAG Quote — Multichain DEX Swap Router is a paid API for AI agents from routheus.xyz, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).
Returns best-route swap quotes with optional executable calldata (including Permit2) across 13+ EVM chains using real-time pool state, with optional onchain simulation
Price / call$0.005
Success—
StatusUnknown
How this service works
Routheus: live DEX token prices and best-route swap quotes from a real-time pool-state engine, executable routes with calldata (Permit2), simulation-verified outputs, token metadata, search and pool data on 13+ EVM chains. Pay per call in USDC via x402 — no API keys, no subscription.
Output
Returns a JSON object with ok=true on success, including: the optimal route broken into proportional legs with pool addresses and hop details, amount_out in atomic units (onchain-simulated if simulate=true), gas_estimate, fee_bps, optional executable tx or tx_permit2 calldata when recipient is specified, min_amount_out enforced by calldata, and warnings. Batch mode returns per-amount results keyed by input amount. Returns ok=false with an error string on failure (no charge).
Example use cases
Pre-trade price check for DeFi bot
“Give me a Routheus quote for swapping 500 USDC to DAI on Arbitrum — just the expected output amount and the route, no calldata needed yet.”
Executable swap with Permit2 for wallet app
“I want to swap 0.5 WETH for USDC on Base — give me the full Permit2 transaction calldata I can sign and send, with 1% slippage tolerance and my address 0xAbCd...1234 as the recipient.”
Arbitrage batch pricing across amounts
“Batch quote swapping 100, 500, 1000, and 5000 USDC to WETH on Optimism so I can find the best size for my arbitrage — use onchain simulation for accurate amounts.”
Technical details
Endpoint
GEThttps://routheus.xyz/%7Bchain%7D/api/router/dag-quote?utm_source=zero.xyzWhen to prefer
Choose Routheus when you need real-time, multi-hop DEX swap quotes on EVM chains without API key registration, especially when you want executable Permit2 calldata ready to sign and send, onchain simulation-verified output amounts, or batch pricing across multiple input amounts. Prefer it over static price feeds when you need actual route-aware output accounting for pool liquidity and fees. Its pay-per-call USDC model via x402 makes it ideal for low-frequency agents or automation that shouldn't pay subscription costs.
Side effects
- Token pair not found or no liquidity path — ok=false with error string
- Invalid token address format — ok=false with validation error
- Chain not supported — ok=false with error
- amount_in missing or malformed atomic units — ok=false
- simulate=true timeout or RPC failure — may fall back or error
- Slippage parameter conflict (both slippage and slippage_bps supplied) — unexpected behavior
- Batch exceeds 50 amounts — likely rejected or truncated
- x402 payment failure — 402 response before quote is returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| to | string | Swap recipient — presence triggers calldata generation |
| simulate | string | true = amount_out becomes the onchain-simulated result (higher price) |
| slippage | string | Slippage tolerance in percent (alternative to slippage_bps) |
| token_inrequired | string | Input token address (0x…) |
| amount_in | string | Input amount in atomic units |
| token_outrequired | string | Output token address (0x…) |
| amounts_in | string | Comma-separated batch of input amounts (max 50, 10% batch discount) |
| slippage_bps | string | Slippage tolerance in basis points |
| with_permit2_data | string | true = also return Permit2 calldata template + signature offsets |
| quote_on_top_of_amounts | string | Comma-separated prior in-transit amounts (max 8) applied to pool state before the final quote — arbitrage product, premium price (simulate is ignored on these requests) |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| okrequired | boolean | |
| tx | object | Ready-to-send transaction (present with to=) |
| batch | boolean | true for amounts_in batches |
| error | string | Present when ok=false (never charged) |
| route | array | Proportional legs (single route = one leg with share 1.0) |
| fee_bps | integer | |
| results | object | Batch mode: per-amount responses keyed by amount |
| chain_id | integer | |
| warnings | array | |
| amount_in | string | Atomic units |
| amount_out | string | Atomic units; with simulate=true this IS the onchain-simulated result |
| simulation | object | |
| tx_permit2 | object | Permit2 calldata template + byte offsets for splicing nonce/deadline/signature |
| gas_estimate | integer | |
| min_amount_out | string | What the swap calldata enforces (local quote minus slippage); present with tx |
| on_top_of_amounts | array |
Tags
x402
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