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You spot a honeypot token on trending. The chart looks perfect—steady climb, healthy volume. Your users buy in. When they try to sell, nothing happens. The contract blocks all sells except for the developer’s wallet. $3.2 million locked forever. This guide shows you how to screen tokens before your users get burned.

Why Token Screening Matters

Honeypot Detection

Block tokens that won’t let users sell

Tax Analysis

Expose hidden buy/sell taxes before users swap

Rug Risk Assessment

Identify concentrated holdings and suspicious patterns
Why DEX developers choose Webacy:
  • Contract security analysis — Detect honeypots, malicious functions, and rug mechanics
  • Hidden tax detection — Find buy/sell taxes hidden in contract code
  • Holder concentration — Identify tokens where insiders hold most supply
  • Liquidity analysis — Assess pool depth and rug pull indicators
  • Trading Lite API — Sub-second screening for real-time user protection
  • Multi-chain support — ETH, Solana, Base, Arbitrum, BSC, and more

Prerequisites

Before implementing token screening, ensure you have:
  • A Webacy API key (sign up here)
  • Basic familiarity with REST APIs or the Webacy SDK
  • Your swap interface’s token selection and pre-swap flows identified

Token Listing Due Diligence

Screen tokens before they appear on your platform.

Contract Security Analysis

Get a comprehensive security analysis of any token contract.
Key fields to check:

Hidden Tax Detection

Many scam tokens hide excessive taxes that steal from users on every transaction.
The Tax Trap: A token advertises “5% tax for marketing.” The contract actually takes 90% on sells. Users buy in at market price and can only exit at 10 cents on the dollar.
Tax warning thresholds:

Holder Concentration Analysis

Identify tokens where insiders control most of the supply.
Holder red flags:

Real-Time User Warnings

Screen tokens in real-time when users try to swap.

Pre-Swap Screening

Check tokens before users execute swaps.

Trading Lite for Speed

For high-volume DEXes, use Trading Lite for sub-second token screening.
Trading Lite is currently available for Solana only. Use the standard contract analysis endpoints for EVM chains.

Liquidity Analysis

Check if there’s enough liquidity to actually execute trades.

Pool Data

Liquidity warning thresholds:

Rug Pull Indicators

Combine multiple signals to detect potential rug pulls.

Complete Integration Workflow

Token Listing Flow

Pre-Swap User Warning Flow

Full TypeScript Implementation


Example Tokens for Testing

Known Honeypots

High Tax Tokens

Safe Tokens (for comparison)

Testing tip: For honeypot and tax testing, use tokens you find in real-time on DEX trending lists. Scam tokens are deployed constantly, so the best test data is fresh data.

API Quick Reference


Next Steps

Get Your API Key

Start screening tokens today

API Reference

Complete endpoint documentation

Honeypots Explained

Deep dive on honeypot mechanics

Trading Client SDK

SDK for holder analysis