# Honeypot Check – EVM Token Sell Simulation

> Honeypot Check – EVM Token Sell Simulation is a paid API for AI agents from obol-x402.fly.dev, paid per call via x402, $0.15/call, status down (last checked 2026-09-16).

Simulates whether an EVM token can actually be sold after purchase, detecting honeypot traps and measuring exact sell tax across multiple chains using KyberSwap round-trip simulation fused with honeypot.is/GoPlus per-chain analysis.

## Facts

- Endpoint: GET https://obol-x402.fly.dev/v1/evm/sell-sim
- Price: $0.15/call
- Payment: x402
- Status: down
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/honeypot-check-evm-token-sell-simulation-73e7a730
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zNDXSE4TjUvyOdiFKeDG-

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 honeypot-check-evm-token-sell-simulation-73e7a730
```

Example prompt: Before I buy this token, can you simulate whether I'd actually be able to sell it afterward — run a sell simulation on 0x1234abcd... on base and tell me if it's a honeypot or if there's a sell tax?

## When to prefer this

Choose this endpoint when you need to verify whether a specific EVM token can actually be sold after purchase — especially before executing a buy trade. It is superior to generic token scanners because it performs an actual KyberSwap round-trip sell simulation fused with honeypot.is fork analysis (for base/ethereum/bnb) or GoPlus (for arbitrum/optimism/polygon), and it never returns a false ALLOW from a partial result. Prefer it over static contract scanners when you need sell-tax precision and chain-aware simulation rather than just ownership or code heuristics.

## Known failure modes

- Invalid or non-existent token contract address returns an error
- Unsupported chain value returns validation error
- Token with no liquidity may produce inconclusive simulation
- Partial simulation results are never returned as ALLOW — they default to BLOCK or CAUTION
- Network timeout on-chain may cause delayed or failed response
- Token recently deployed with no trading history may lack simulation data

## How this service works

Can you SELL this EVM token after buying? KyberSwap two-way round-trip FUSED with per-chain sellability sims — honeypot.is fork sim + exact sell tax on base/ethereum/bnb, GoPlus on arbitrum/optimism/polygon. Buyable-but-not-sellable = honeypot BLOCK. ALLOW|CAUTION|BLOCK, never ALLOW from a partial result. Query: address, chain (default base). Free teaser: /v1/evm/sell-sim/preview. Cryptographically signed (Ed25519) — every response is independently verifiable via /.well-known/obol-pubkey.

## Output

Returns a signed verdict of ALLOW, CAUTION, or BLOCK indicating whether the token is sellable. Includes the simulated sell tax percentage, chain-specific simulation source (honeypot.is fork for base/ethereum/bnb, GoPlus for arbitrum/optimism/polygon), and a KyberSwap round-trip result. Response is cryptographically signed with Ed25519 and independently verifiable.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "chain": {
       "enum": [
        "base",
        "ethereum",
        "bnb",
        "arbitrum",
        "optimism",
        "polygon"
       ],
       "type": "string",
       "default": "base"
      },
      "address": {
       "type": "string",
       "description": "0x token contract to sell-simulate"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/honeypot-check-evm-token-sell-simulation-73e7a730/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from obol-x402.fly.dev](https://www.zero.xyz/host/obol-x402.fly.dev/llms.txt)