# Token Safety Checker (Honeypot & Transfer Tax Simulation)

> Token Safety Checker (Honeypot & Transfer Tax Simulation) is a paid API for AI agents from yonder-spotless-stranger.ngrok-free.dev, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).

Simulates a real token holder selling an ERC-20 token to detect honeypots and measure the exact transfer tax in basis points before you buy.

## Facts

- Endpoint: POST https://yonder-spotless-stranger.ngrok-free.dev/token-safety
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/token-safety-checker-honeypot-transfer-tax-simulation-0869d073
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TMLi9xdzN8ZApuUSbjRu7

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability token-safety-checker-honeypot-transfer-tax-simulation-0869d073 -d '<json body>'
```

Example prompt: Before I buy this token, run a honeypot and transfer tax check on 0x6982508145454Ce325dDbE47a25d4ec3d2311933 on Ethereum mainnet — simulate a real holder selling it and tell me if the sell would succeed and what the transfer tax is.

## When to prefer this

Choose this endpoint when you need a definitive, simulation-based answer on whether a token is a honeypot or carries a transfer tax — not a heuristic or static code scan. It is especially valuable immediately before executing a buy, in a trading bot's pre-trade safety gate, or when evaluating obscure/new tokens where static analysis tools give false confidence. Prefer it over bytecode scanners when you need ground-truth sellability confirmation on Ethereum mainnet or Base.

## Known failure modes

- Token address not found or invalid on specified chain
- No real holder found to simulate the sell from
- Simulation reverts due to insufficient liquidity or edge-case contract state
- Unsupported chain specified (only 'mainnet' and 'base' are valid)
- Network RPC timeout causing simulation failure
- Payment not accepted or insufficient USDC balance

## How this service works

Honeypot and transfer-tax check done by simulation, not heuristics: we find a real holder of the token and simulate them selling it, then report whether the sell succeeds and the transfer tax in basis points. Answers the only question that matters before you buy — can you get back out?

## Output

Returns whether a simulated sell transaction succeeds or fails (honeypot detection) and the transfer tax charged in basis points, derived from an actual on-chain simulation using a real token holder — not heuristics.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "chain": {
   "type": "string",
   "description": "mainnet or base"
  },
  "token": {
   "type": "string",
   "description": "ERC-20 token address to test"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/token-safety-checker-honeypot-transfer-tax-simulation-0869d073/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from yonder-spotless-stranger.ngrok-free.dev](https://www.zero.xyz/host/yonder-spotless-stranger.ngrok-free.dev/llms.txt)