A problem people bring · solved

Check a crypto site before you sign

You can see exactly what a site wants before you approve anything. Scan the transaction with Recon to read it in plain words, use a separate small wallet for new sites, and keep savings in a Safe that needs a second signature. Check old approvals for free on Revoke.cash. Skip these: search ads and links from DMs; use bookmarks.

  • 2 stops
  • 13 minutes, all in
  • 4 surprises
  • 1 live demo

Chapter 1

Who knew?

the bits nobody tells you
Oh! #1
Connecting a wallet is usually harmless; signing is where the danger is.
Signatures grant permissions or move funds.
Oh! #2
A burner wallet with a few dollars limits the damage of any mistake.
Separate keys hold separate funds.
Oh! #3
A free 'signature' with no gas can still be a Permit that gives away tokens.
Permit signatures are signed offchain and used later.
Oh! #4
Lookalike domains are often a single letter off, so a bookmark beats a search result.
Scam ads and fake links mimic real sites.
People assume

Antivirus will catch it.

Actually

About 0.1 USDT per Recon scan on X Layer; checking approvals is free.

Chapter 2

The free route, step by step

tap a stop to do it now

2 stops, cheapest first

  1. Stop 1 · OwnSee what a dapp will make you sign, before you signAbout 0.1 USDT per scan on X Layer3 minRecon
  2. Stop 2 · OwnKeep a wallet that argues back before you signGas on Monad10 minSecond Signature

Three ways through

Pick your route

free, bold, or build the missing piece
  1. Start free tonight

    Install a drainer alarm tonight

    A free extension checks every site against live drainer lists.

    1. Get warned before a drainer site gets you
    2. Close the doors old apps still hold open

    Cost Free, plus gas to revoke.

  2. The bold play

    Read every signature first

    Built by the House

    Know what you approve before you approve it, and add a cosigner for big moves.

    1. See what a dapp will make you sign, before you sign
    2. Keep a wallet that argues back before you sign
    3. Share a family wallet that needs two of three to move money

    Cost About 0.1 USDT per Recon scan on X Layer.

  3. Build it

    Build the group link checker

    Built by the House

    No bot yet warns Telegram groups about lookalike domains using live blocklists. Build it with the House.

    1. Own a working onchain app with your name on it
    2. Start with your group's official domains plus Scam Sniffer's blocklist.

    Cost Build time.

Your version

Make this mine

Tell the Engine where you stand and it re-routes this answer for you. Three free a day, shared with Ask the Engine. Engine Pro members get unlimited.

What I already have

Past the basics

What’s possible

live today, or yours to build
  • Live today

    Get warned before you connect to a known drainer site.

    How Install Scam Sniffer or Pocket Universe. Keep it on.

  • Live today

    Scan any signing request in plain words.

    How Open Summon. Paste the request. Read before approving.

  • Live today

    Keep savings in a vault that needs a second signature.

    How Create a Safe. Add a second signer. Move savings there.

  • Possible to build

    A Telegram bot that warns before members open a lookalike domain.

    How Keep a list of official domains. Compare each posted link. Warn on near matches.

Project + project

Combos nobody marketed

A + B = something new
  • burner walletSafe vault

    Try any new site while your savings need two keys to move.

    Why it works Separate keys hold separate funds.

  • Scam SnifferRevoke.cash

    Block bad sites before, clean up approvals after.

    Why it works One checks sites live; the other lists old approvals.

  • Telegram grouplink checker bot

    Members get warned before opening a lookalike domain.

    Why it works Scam links spread fastest in groups.

Chapter 3

Try it live

Built by the House

Do not take our word for it. Summon runs right here, so you can poke at the real thing before you commit to anything.

Wallet or sign-in will not open in here? Open Summon in a new tab ↗

Screening Room

Watch it first

More films →
The SignWhy does nobody know you exist yet?

Chapter 4

Where it matters most

  • airdrop hunters

    They visit many new sites.

  • Telegram users

    Links spread fast in groups.

  • people clicking search ads

    Fake ads copy real projects.

Chapter 5 · Not built yet?

Build it

A link checker bot for Telegram groups that warns before members open a lookalike domain.

Who could build it Community admins and moderators.

For founders

Uses you never marketed

All projects →

Connections

People to meet

Propose a bridge →
  • Scam Sniffer

    Report a drainer site you caught.

    Say hello
  • Revoke.cash

    Learn approval hygiene.

    Say hello
  • Safe

    Learn vault setups for normal users.

    Say hello
  • community moderators

    Share lookalike domains you have caught.

    Go there

Propose a bridgetwo projects, one outcome neither could reach alone

Questions

Is connecting my wallet to a site dangerous?

Connecting is rarely the risk; signing is, so scan the request with Recon before you approve.

What is a burner wallet?

A burner wallet is a separate wallet with little money, used for new sites so your Safe stays untouched.

Can I revoke approvals I gave a crypto site?

Yes. Free tools such as Revoke.cash list approvals, and revoking costs a little gas.

Does a Recon scan cost money?

A Recon scan costs about 0.1 USDT on X Layer, which is far less than most drained wallets lose.

The spark

Which wallet holds your savings, and how many new sites has it signed for this month?

Some links are referral links; they never change what we recommend.