Connect Kalshi

Link your Kalshi account so its markets line up next to every other venue in OpenMarkets and your trades route there at your direction. About 5 minutes — the OpenMarkets parts are quick; most of the work happens in Kalshi.

OpenMarkets

Open the connect form in OpenMarkets

Get to the screen with the two empty fields, so you know exactly what to paste later.

3 steps

In OpenMarkets, tap the partner icon (top right of the Markets screen) to open the partners list.
Find Kalshi in the partners list and tap it.
Kalshi reads "Add credentials to activate" until it's connected.
Kalshi's connect form opens with two fields — API Key and Private Key (PEM format). Leave it on this screen.

Kalshi

Generate the API key in Kalshi

On kalshi.com — Read/Write permission. Kalshi shows the private half exactly once.

5 steps

In a new tab, sign in to kalshi.com, open your account menu at the top-right of the Kalshi site, and select Settings.
The account menu is your initial in a circle, top-right. Settings is near the bottom of the dropdown.
Click Account & security.
Scroll to the API Keys section and click Create key.
If you already have an OpenMarkets key here from a previous attempt, you'll still need to create a fresh one — Kalshi only shows the private half on creation, and you can't recover the old one.
Give the key a nickname (e.g. OM or OpenMarkets) and choose Read/Write.
Pick Read/Write. A Read-only key can fetch balances but can't route the orders you tap in OpenMarkets.
Kalshi will show the key only once. Copy both the API key id and the Private key — they go straight into OpenMarkets's two fields.
The orange arrows show exactly where each half goes in OpenMarkets.
Don't close this modal before pasting both halves into OpenMarkets. If you do, you'll have to delete this key in Kalshi (red ×) and create a new one — Kalshi can't show the private key again.

OpenMarkets

Paste and test in OpenMarkets

Two fields, two buttons. You're done.

1 step

Back in OpenMarkets: paste the API Key and Private Key, then tap Save credentials and Test connection.
When the test succeeds you'll see your Kalshi balance and the partner card flips to Connected.

How to know it worked

The Kalshi card flips from "Add credentials to activate" to Connected with a small green dot. Your balance shows next to the name, and Kalshi markets start appearing in your slate alongside every other venue. That's the whole point of OpenMarkets — one view, every market.

If something goes wrong

Test connection failed

Re-check both fields. The API Key is short (an id). The Private Key is the longer block including the -----BEGIN RSA PRIVATE KEY----- and -----END RSA PRIVATE KEY----- headers — paste it whole. If the values look right, regenerate the key in Kalshi and try again.

Balance shows $0.00 but I have funds

Confirm the key is Read/Write, not Read only. Give it ~30 seconds — balances can lag by one sync. If it persists, delete the key in Kalshi and create a fresh Read/Write key.

I lost the private key

Kalshi can't recover it. Delete the key in Kalshi (Account & security → API Keys → red ×), create a new Read/Write key, and re-paste both halves into OpenMarkets.

Test passes but no Kalshi markets show up

Markets sync on the next pull — pull to refresh the slate, or give it a minute and reopen. If they still don't appear, email support@openmarkets.ai.

Disconnecting Kalshi

In OpenMarkets, open the Kalshi partner card and tap Disconnect partner. That removes the encrypted credentials from OpenMarkets — Kalshi itself isn't notified. For belt-and-suspenders, also delete the OM key on Kalshi's side: Account & security → API Keys → red ×.

Your credentials are encrypted at rest in OpenMarkets and only used to fetch balances and route the orders you tap. The key never leaves the OM backend except to talk to Kalshi, and you can revoke on either side at any time.

Connect your other accounts