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StealthGuard Pre-Trade Agent Gate
x402
StealthGuard Pre-Trade Agent Gate is a paid API for AI agents from stealthguard-402.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-19).
Runs a deterministic TRUST or BLOCK decision on a token or trade target by combining on-chain Base RPC liquidity checks, honeypot detection, and CanaryGuard prompt-injection scrubbing.
Price / call$0.01
Success—
StatusUnknown
How this service works
Deterministic TRUST or BLOCK gate combining on-chain Base RPC liquidity and honeypot checks with CanaryGuard injection scrubbing.
Output
A deterministic TRUST or BLOCK verdict combining: (1) on-chain Base RPC liquidity assessment, (2) honeypot detection for the target token or contract, and (3) CanaryGuard prompt-injection scrubbing of the response — returned as a structured gate decision indicating whether an agent should proceed or halt.
Example use cases
Honeypot screen before DEX swap
“I'm about to swap ETH for this new Base token at 0xDeAd...BeeF — can you run a honeypot and liquidity check on it first and tell me whether it's safe to trade?”
Autonomous agent pre-trade guardrail
“My trading agent is about to execute a buy order on a Base DEX pair — run the pre-trade gate to check for honeypots, bad liquidity, and any injected malicious instructions before it goes through.”
Prompt injection scrub for DeFi data
“I pulled token metadata from an unknown Base contract and I'm worried the response contains prompt injection payloads — can you screen it with the CanaryGuard gate before my agent processes it?”
Technical details
Endpoint
POSThttps://stealthguard-402.onrender.com/v1/pre_trade_agent_gate?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an autonomous agent needs a single deterministic safety verdict before executing a DeFi trade on Base — especially when combining honeypot risk, liquidity depth, and prompt-injection defense into one call is preferable to orchestrating three separate checks. Ideal for agent pipelines where a TRUST/BLOCK binary gate is needed rather than raw data to interpret.
Side effects
- Invalid or unresolvable token/contract address returns a BLOCK with error details
- Base RPC node timeout results in an inconclusive or failed gate response
- Malformed request body (missing required fields) returns a 400-level validation error
- Service downtime on Render infrastructure causes 502/503 responses
- Rate limiting or payment failure on the x402 micropayment layer blocks the call
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| chain | string | Target blockchain ecosystem |
| target_url | string | Optional associated project or dApp URL |
| strict_mode | boolean | Deterministic prompt-injection sanitization strictness |
| token_or_service_address | string | EVM contract address or Solana mint/account |
Tags
x402
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