01 · Polymarket
Every market number
Read live from their public API. They see requests from this server, and — as the query itself — any wallet address you look up.
Privacy · updated 16 September 2026
There is no account, so there is almost nothing to collect.
Sonde has no sign-up, no profile, no newsletter, no analytics and no advertising. This page is short because the honest answer to most privacy questions here is "nothing" — and where that is not the answer, it says exactly what happens instead.
In your browser
One key in local storage, and no cookies at all.
The site sets no cookies and runs no analytics, tracking pixels or advertising scripts. The only thing it keeps on your device is your Battles record — the sides you have taken — under the key sonde.battles.v1 in local storage. It never leaves your browser, it is never sent to us, and clearing your site data deletes it for good. That is also why your record does not follow you to another device.
On the server
Requests, briefly, and nothing tied to a person.
The server keeps market data in memory for up to a few minutes so that a refresh does not turn into a fresh round of upstream calls. Alongside that, three things are worth naming precisely:
WhatWhyHow longSent anywhere?
Wallet address you typeTo ask Polymarket for that wallet's public positionsCached ~45sTo Polymarket, as the query
Your IP addressStandard request logs, and the per-visitor cap on the analyst legLog retention of the host; the cap forgets after an hourNo
Market you asked the analyst to readTo generate that readReused ~15 minTo Anthropic, if enabled
A wallet address you look up is a public identifier on a public ledger, and the positions shown are published by Polymarket. Typing one here does not tell us it is yours, and we make no attempt to find out.
Who else is involved
Four parties, and what each one sees.
02 · Google Fonts
Two typefaces
The page loads Geist and Instrument Serif from Google's font CDN, which means your browser makes a request to Google and Google sees your IP address. No other third-party asset is loaded.
03 · Anthropic
Only if you ask
When the analyst leg is switched on and you press the button, the market's public data is sent to Anthropic's API to generate the read. Nothing about you goes with it.
04 · The host
Ordinary server logs
The site runs on a hosting provider that records requests — IP, path, timestamp — as any web server does, under their retention policy.
The rest
Rights, children, changes.
- Your rights. Because there is no account and nothing is stored against your identity, there is normally no personal data of yours to export or erase. Where applicable law gives you rights over the request logs described above — access, erasure, objection — write to the contact address published in the site's repository and the operator of this site will handle it.
- Legal basis. The limited processing above rests on the legitimate interest of serving the site and protecting it from abuse. No profiling, no automated decisions about you, and nothing sold or shared with data brokers — there is nothing to sell.
- Children. The site is not directed at children, and prediction markets are not for them. It requires no personal data from anyone, of any age.
- Changes. If this notice changes, the date at the top changes with it.
- Contact. the contact address published in the site's repository. See also the terms of use.