01LIVE
Doppler
Fee-taking hook used by many launchpads.
Reading the hooks of
Doppler230,666 pools
Clanker15,618 pools
Pons13,719 pools
Cash Cat Hook V29,191 pools
DEMOS$DEMOS Coming soon
/ THE OPEN HOOK INTELLIGENCE LAYER
Every v4 hook.
One demos box.
Demos reads every v4 hook: what it can do to your swap, who can change it, and every pool it runs. Then it quotes and builds the swap through it.
$ claude mcp add demosDemos makes every Uniswap v4 hook transparent. See what a hook can do to your swap before you sign — fees, upgrades, custom pricing, and more. Built for humans and agents.
01
02
The problem
Every hook is a
black box.
30K+
Hooks live
Each one runs its own code inside your swap.
14
Hidden in address
Permission bits hide in the last bits of an address.
35%
Of v4 pools run a hook
Launchpads, fees, custom curves, lockups.
0
Warnings in your wallet
You see a price. Never the hook behind it.
03
With Demos
From address to swap
in four steps.
01
Inspect any hook
Hook API · permissionsPaste an address and see what it can do to a swap.
02
Quote through it
Quote API · live chainSee the actual route, fee and output before signing.
03
Build calldata
Build API · unsignedGet calldata ready for your wallet to review.
04
Make it yours
MCP · agentsAsk your agent about any hook in plain words.
GET /v1/hooks/0x2544... // 14 permissions decoded04
The platform
One API.
Six tools.
GET /v1/hooks/:addressDopplerHookInitializer5 of 14·Fixed codeGET /v1/pools/:idPool 0x7f2a...Hooked pool·LivePOST /v1/quoteDJT → MAGATECHThrough hook·$0.00 feePOST /v1/buildUnsigned calldataReview + sign·ReadyGET /v1/scan/:tokenEvery poolEvery hook·Plain wordsPOST /v1/mineHook salt minerPermission bits·Computed05
Built for trust
Reads the chain.
Never your keys.
Quotes and dry runs against the live chain
06
For agents
Ask your agent
about any hook.
Add Demos to Claude Code, Cursor or any MCP client. Twelve tools to scan a token, inspect a hook, quote, build a swap and mine an address.
{
"mcpServers": {
"demos": { "url": "https://demos.box/mcp" }
}
}1.1MV4 pools indexed
30KHooks decoded
389KPools with a hook
12MCP tools
07
Live registry
The hooks behind
every swap.
02LIVE
Clanker
Custom pricing for token launches.
03LIVE
Pons
Swap fee on top of LP fee.
04LIVE
Cash Cat Hook V2
Custom curve pricing.
05LIVE
Lunch Tax Hook
Upgradeable fee hook.
06LIVE
Universal Klik
Programmable swap behavior.
07LIVE
Pair V4
Fixed code. No hook fee on swaps.
08LIVE
Position Manager
Custom pricing and permissions.
08
Open by Pangea
Backed by $DEMOS.
Public API
Every endpoint, no key, no account.
120 requests a minute$DEMOS
Protocol fee: 2% on every swap routed through Demos.
Primary pair: SPCX / DEMOSAgents
The same kit for Claude Code, Cursor and any MCP client.
12 tools · streamable HTTP09
Questions
Still curious?
01What is Demos?
The open intelligence layer for Uniswap v4 hooks: inspect, quote, build, and understand any hook before you swap.
02What is a hook?
A contract a v4 pool calls before and after swaps and liquidity changes. It can add fees, replace pricing, gate liquidity or run oracles.
03Is a hook with warnings a scam?
Not by itself. Launchpads, custom curves and fee hooks need those permissions. Demos tells you what a hook can do, not what it will do.
04Do I need a key or an account?
No. The API and MCP server are open. No account or private key is required.
05Can Demos touch my funds?
No. It never holds keys, never signs and never sends a transaction. Swap endpoints return unsigned calldata you review and sign yourself.
06What is $DEMOS?
The token of the open hook intelligence layer. The API stays open to everyone.