Crypto tools that tell you the truth
Most crypto sites tell you the price. We measure what you could actually get — and every tool here grows out of that one measurement. No trading, no custody, no paid rankings, and nothing that asks for a seed phrase or a wallet connection.
Measured 2026-10-16
Selling $100,000 of PEPE on Kraken returns $99,873 0.13% lost
- Exit-Friction Index
- 26.8% so far in October 2026
- Markets measured daily
- 711 on-chain and on exchanges
- Assets tracked
- 1,202 checked before publishing
01 Discover
What is this thing?
Paste anything crypto. The search box works out what it is before it answers.
Search that understands
Tickers, names, contracts, ENS names, Bitcoin and Solana addresses, transaction hashes, "can I sell 50k of X" — each gets the answer that kind of thing needs. A pasted seed phrase is refused, never searched.
Identify an address
Wallet or contract, which of seven EVM chains it is active on, and the token if it is one. Used to answer, never stored.
Explain a transaction
Whether it succeeded, what moved to whom, the fee, and any token approvals it granted — including unlimited ones.
Prices and coin pages
1,202 assets, the largest 250 synced every five minutes and all of them checked before publishing, with our own descriptions on the ones that matter.
CM Profile
At the top of a coin page: what we have established, measured and written with a source about the coin, and what we have not. Every line links to its evidence.
Compare two coins
Two assets side by side, on what actually differs.
Chains we read
What reading a chain means here, and what we measure on it.
02 Choose
Who can I trust?
Where to hold, trade and file taxes — assessed against standards we publish.
Before You Buy
Name a coin and an amount. We fill in what we measure about it, you write the reasons only you can give, and your own rules check the decision. One dated page to keep, never a tip.
Fair Price Check
Type what your app, exchange or Bitcoin ATM shows when you buy or sell. We compare it with the market price right now and say, in dollars, how much it kept.
Directory
155 exchanges, wallets, hardware and tax tools, each with what it is good for and what to watch.
Listing standards
The rules every listing is held to. A paid placement buys position on a page — never a better assessment.
03 Learn
Help me understand
Plain language, and worksheets you can print.
Guides
17 plain-language guides, written and checked by us.
Explore
What a coin can and cannot do, and who you depend on for it. The same questions for every coin, each answer with its source.
PowerMap
Who holds power over a coin — to freeze, pause, mint or redeem it — and where we read it. Ask "what can Circle freeze" in search. Never a score.
Worksheets
Printable sheets for a first purchase, a long-term plan, and getting back into a wallet you have lost access to.
BIP39 word check
Check one word at a time against the official list, or download the offline checker. Never type a whole phrase into any website.
04 Watch
What is coming?
Dates that move markets, each with a measured number beside it. Never a forecast.
Crypto calendar
Token unlocks, network upgrades, exchange delistings and tax dates, each with two sources and a measured number beside the date.
Halving countdowns
New supply per day in dollars, before and after each halving. No price predictions.
The feed
Measurement cards as they are published, newest first. Also as RSS.
05 Sell
Can I actually sell this?
The question a price chart cannot answer — and the one this site exists for. We measure what selling really returns, every day, instead of assuming you get the quoted price.
Exit costs
What a $100,000 sell really returns for 391 on-chain markets, measured daily through live DEX routing, and for 320 tokens on Kraken and Coinbase.
The Exit-Friction Index
One number a month: the median share of value lost selling $100,000 — 26.8% so far in October 2026. With a written report and a chart you may reuse.
Sellability
What your own position would realise, at your size, right now — on-chain and on the exchanges we read.
Wallet Exit Report
Paste a public address and see what everything in it would realise if sold. Nothing to connect or sign.
Track your wallet
One email if your wallet's exit gets worse. One wallet free; up to ten with the Wallet Exit Pass.
Statements
A dated, frozen record of what an address, or a stated amount of one token, would have sold for — kept three years and verifiable by anyone you show it to.
Crypto Continuity Plan
Where your crypto is held and how each piece is recovered, printed as a book your family or executor can follow. One offline file that never holds a recovery phrase.
Games
Two daily games, Scam or Legit? and Cryptle, a crypto knowledge quiz, and an arcade of nine, from Chasing Bitcoin to Hamster Mining Co. Each teaches one word from the crypto library.
Can It Sell?
One token a day, one guess: how much of $100,000 would really come back? Scored against the measurement.
06 Recover
I am locked out of a wallet
A scrambled seed order, a word your handwriting reads two ways, a passphrase you almost remember.
07 Everywhere
Use it outside this site
The same measurements wherever you already are — each one linking back to its source.
Telegram bot
Ask @cryptominiumbot /exit PEPE in any group. No trade buttons, and it keeps nothing you send.
In your AI assistant
Claude, ChatGPT and others can call Cryptominium directly, so they quote the measurement instead of guessing.
Badges and cards
A badge for a README, a card for an article, JSON for code — each shows the dated figure and links to it.
Open data
The index and every token's monthly figures as CSV, frozen per month for research.
The monthly email
The index when each month closes, and nothing else.
What we will never do
Not policies we could change on a slow month. The site is built so it cannot.
Route you to a trade
No swap buttons, no exchange links on a measurement, no signals.
Hold your funds
No custody, no wallet connection, no signatures. Nothing here can move money.
Sell a ranking
Paid placement buys position on a page, never a better write-up or a number.
Watch you
No ad trackers, no profiles. What you look up is used to answer and dropped.
Start with a question
A coin, a wallet, a transaction, or "can I sell 50k of X?"