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SYLPHY Intent Submission
x402
SYLPHY Intent Submission is a paid API for AI agents from api.sylphyagent.com, paid per call via x402, $0.01/call, status down (last checked 2026-09-15).
Submits a private token swap intent with encrypted parameters for policy-checked settlement on Base
Price / call$0.01
Success—
StatusDown
How this service works
Sylphy helps wallets, apps, and AI agents execute payments and settlements with encrypted intent, policy checks, and audit proofs — while final settlement remains verifiable on Base.
Output
A JSON object containing a status field (e.g. 'pending') and an intentId (a hex string like '0xabc...') representing the submitted swap intent awaiting settlement on Base.
Example use cases
Agent executes private treasury rebalancing
“Rebalance our treasury by swapping 50k USDC for WETH on Base privately through Sylphy, ensuring we get at least 17.5 WETH out, and let me know the intent ID once it's been submitted for settlement.”
Confidential payment settlement between tokens
“Process a private token settlement from our account: exchange 25k USDC for USDT on Base with encrypted intent, minimum 24.9k USDT output, and return me the intent ID for our audit trail.”
Policy-enforced DeFi trade execution
“Execute a private token swap on Base using Sylphy—trade 10 WETH for USDC with a floor price of 32k USDC, encrypt the intent parameters, and give me back the submission ID for verification.”
Technical details
Endpoint
POSThttps://api.sylphyagent.com/api/intentWhen to prefer
Use this endpoint when you need to execute a private, policy-enforced token swap on Base with encrypted intent submission and an on-chain verifiable audit trail. Prefer this over standard DEX aggregators when privacy, policy compliance, or audit proofs are required for the trade.
Side effects
- Invalid or unsupported token address for tokenIn or tokenOut returns an error
- amountIn not parseable as a valid token amount causes rejection
- minAmountOut not satisfiable at current market conditions may cause intent failure or rejection
- Missing required fields returns a validation error
- Payment not included or insufficient USDC payment returns 402
- Network or policy check failure returns an internal error status
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| tokenIn | string | |
| amountIn | string | |
| tokenOut | string | |
| minAmountOut | string |
Output
Schema · Response
{
"type": "json",
"example": {
"status": "pending",
"intentId": "0xabc..."
}
}Tags
x402
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