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Grey Ridge Signals — Pre-trade Token Safety Gate (Base ERC-20)
x402
Grey Ridge Signals — Pre-trade Token Safety Gate (Base ERC-20) is a paid API for AI agents from x402-data-api.sigrunner.workers.dev, paid per call via x402, $0.008/call, status unknown (last checked 2026-10-21).
Returns a GO, HOLD, or BLOCK decision for a proposed ERC-20 token swap on Base mainnet, combining honeypot detection, admin-control checks, and Uniswap v3 price-impact analysis.
Price / call$0.008
Success—
StatusUnknown
How this service works
Pre-trade token security GO / HOLD / BLOCK gate for an autonomous Base trading agent: pass token, side (buy|sell) and notional_usd; get a one-word decision plus reason in one fast call. Combines honeypot/sellability simulation, admin-control checks and Uniswap v3 WETH-pool liquidity vs. your trade size (price-impact guard). Use when an autonomous trading agent needs a GO/HOLD/BLOCK check right before a Base swap.
Output
A JSON object containing: decision (one of 'go', 'hold', or 'block'), a human-readable reason string, a risk_score integer (0-100), liquidity_usd (Uniswap v3 WETH-pool liquidity in USD), impact_pct_of_pool (your trade's price impact as a percentage), plus echoed token, side, and notional_usd fields.
Example use cases
Honeypot check before autonomous buy
“My trading bot is about to buy $1000 worth of token 0x4200000000000000000000000000000000000006 on Base — screen it first and tell me if it's safe or if I should block the trade.”
Sell-side rug pull guard
“Before my agent sells $250 of 0xd9aAEc86B65D86f6A7B5B1b0c42FFA531710b6CA on Base, check if it's actually sellable or if there are any admin controls that would block the sell.”
Liquidity and price impact check
“I want to swap $5000 of 0x2Ae3F1Ec7F1F5012CFEab0185bfc7aa3cf0DEc22 on Base — is the Uniswap v3 pool liquid enough that my trade won't move the price too much? Give me the GO/HOLD/BLOCK decision.”
Technical details
Endpoint
GEThttps://x402-data-api.sigrunner.workers.dev/gate/swap?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI trading agent needs a fast, pre-trade safety gate on any Base ERC-20 before executing a swap — especially when honeypot risk, admin-control lock risk, or Uniswap v3 liquidity depth relative to trade size are concerns. Prefer this over generic token-info endpoints when you need an actionable GO/HOLD/BLOCK verdict rather than raw market data, and when the trade is on Base mainnet specifically.
Side effects
- Invalid or non-checksummed token address returns an error response
- Token not found on Base mainnet yields no liquidity data and likely a BLOCK decision
- Non-numeric notional_usd value causes a bad request error
- Missing required token param returns a 400-level error
- Payment not included or insufficient results in x402 payment required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"note": null,
"side": "buy",
"flags": [
"no honeypot, deep liquidity, no high-risk admin controls detected"
],
"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"reason": "token passes safety checks",
"verdict": "SAFE",
"decision": "go",
"disclaimer": "Heuristic risk signal, not financial advice or a guarantee.",
"risk_score": 25,
"token_meta": {
"name": "USD Coin",
"symbol": "USDC",
"decimals": 6
},
"analyzed_at": "2026-10-20T21:45:00.000Z",
"notional_usd": 500,
"liquidity_usd": 158115578,
"impact_pct_of_pool": 0.0003
}
}Tags
x402
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