KATLA FOR LOVABLE
Ask Lovable for cookie consent, and get it right.
Connect Katla to Lovable as a custom connector, and the agent building your app can scan it, read what it found, and install consent from Katla's own install guide - not from a guess at a package name. Katla's hosted banner by default, or the React SDK if you want the banner built from your own components.
Custom MCP connectorOAuth, no API keyWidget or React SDK
Lovable → Connectors → + → MCP serverNo code
Server name Katla Server URL https://api.katla.app/mcp Authentication OAuth (default) → Add & authorize, then sign in to Katla. Then, in your project's chat: "Using the Katla connector, add my published domain, scan it, and install the cookie banner with a cookie settings link in the footer."
Sign in with your normal Katla accountMCP setup guide →
WHY LOVABLE SITES STRUGGLE WITH CONSENT
An AI builder will add a cookie banner. Whether it works is another matter.
THE PROBLEMAsked for a cookie banner, the agent writes one from scratch: a popup with an Accept button that blocks nothing and records nothing.
WITH KATLAWith Katla connected it installs a real consent layer. The guard refuses non-consented cookies at document.cookie, and every decision is stored as a consent record you can export.
THE PROBLEMAn agent working from memory guesses at package names, props and script URLs, and the guess compiles.
WITH KATLAThe connector serves Katla's install guides as a tool, katla_get_skill, and the agent is told to read it before writing any code. One guide for the hosted widget, one for the React SDK.
THE PROBLEMNobody knows which cookies the app sets once analytics, auth and embeds are added, so the cookie policy is a template.
WITH KATLAThe agent scans your published app through the connector, reads back every cookie by category, and the generated policy is written from that list.
SETUP
Connect once, then ask.
- Add the connectorIn Lovable, open Connectors, press + and choose MCP server. Name it Katla, paste https://api.katla.app/mcp as the Server URL and keep OAuth.
- Sign inAdd & authorize opens Katla. Sign in with your normal account - the connector acts as you, with your team roles and plan limits.
- Scan your appAsk the agent to add your published domain to Katla and scan it. Scans crawl the live site, not the editor preview.
- Install consentAsk for the cookie banner. The agent reads the Katla guide, adds the tag to index.html or the SDK to your components, and a cookie settings link to the footer.
BUILT FOR LOVABLE
What the connector gives the agent.
Install guides as a toolkatla_get_skill returns the katla-widget or katla-sdk guide, with reference files for React, Consent Mode, the JavaScript API and the policy embed.
The hosted banner by defaultOne script tag at the top of index.html's head, before anything that sets cookies. Colors, layout and copy stay in Katla's settings, so restyling it is not a code change.
Or the React SDKAsk for a custom banner and the agent uses @katla.app/sdk: KatlaProvider around the app, and useConsentManager() behind your own components.
Your real cookie dataThe agent can list the cookies the scan found, reclassify one, or write your own description for it, and see the consent rates once the app has visitors.
Consent Mode v2Running GA4 or Google Ads? Ask for Consent Mode and the agent switches it on in your site settings. All four signals, denied by default.
Free checks on the live URLkatla_check_cookies and katla_check_consent_mode audit the published page as a first-time visitor, so the agent can check its own install.
CORE WEB VITALS
That's how the cookie crumbles. Except your SEO shouldn't.
Lovable apps are single-page React apps, and a heavy consent script is the first thing between a visitor and your first paint. Katla's hosted banner is 18 KB in one request from a CDN, and the React SDK is 4 KB headless if you build the banner yourself.
How headless mode works →18 kBOver the wireBanner and your cookie data, brotli
0 msAdded LCPAgainst the same page without it
0Layout shiftThe banner reserves no space in flow
2RequestOne script, cached at the edge
Our own measurements, taken - how they were taken.
Questions Lovable teams ask
- Which Lovable plan do I need?
- Any. Lovable enables custom MCP connectors on every plan. On Business and Enterprise a workspace admin can switch custom MCP servers off, so ask them if the option is missing.
- Does my published app depend on the connector?
- No. The connector is only used by the agent while you build, and Lovable's chat connectors never run in a published app. What ships is the Katla script tag or the SDK code the agent wrote, which talk to Katla directly.
- Widget or SDK?
- Start with the widget: one tag, and the banner is styled from Katla. Choose the SDK when the banner has to be built from your own components or consent has to live in React state. Use one or the other, not both.
- Which domain should I add?
- The one your app is published on: your custom domain if you have connected one, otherwise its lovable.app address. Scans crawl the published site, so publish before you scan.
- Can the agent change anything else in my Katla account?
- Only what you could change yourself, with your team role and plan limits, and nothing destructive: removing a domain and changing your plan are not exposed to it.
Connect Katla, then ask for the banner.
The free plan scans your Lovable site and generates a cookie policy, without a card.