How-to guide
How to Combine Ads With a Subscription in Chainlit
This guide shows how to combine ads with a subscription in a Chainlit app, the goal being to run ads on the free tier and a paid ad-free tier together. It builds on the Monetzly gRPC service (no Python SDK exists for this stack), so the approach is specific to how Chainlit produces and streams responses.
Overview
Ads and subscriptions are not mutually exclusive for a Chainlit app. A common setup runs Monetzly ads on the free tier and offers a paid, ad-free tier for power users — capturing revenue from casual and committed users alike.
Implementation is a branch on the response path: enable injection for free-tier sessions and skip it for paying users, based on your own Chainlit app's user state.
Chainlit apps are usually built for chat UIs for LLM apps, agent demos, and RAG chat frontends, so combine ads with a subscription typically comes up while a user is mid-conversation, the moment where monetization has to be additive rather than disruptive.
How this works on Chainlit
Chainlit is Python. Drive the shipped tps_alter.proto gRPC service (or a Node sidecar) and stream injected tokens into a Chainlit Message via msg.stream_token(). Confirm the non-JS auth handshake before publishing.
Since Chainlit is a Python stack with no official SDK, this task runs through the shipped tps_alter.proto gRPC service (or a Node sidecar); the auth handshake for a direct client is still TODO_VERIFY.
Steps
- Determine the user's tier from your Chainlit app's auth/session state.
- Run ad injection for free-tier sessions.
- Skip injection (return the plain stream) for paying, ad-free users.
Frequently asked questions
Start monetizing in about 5 minutes
Wrap your existing LLM response stream with the Monetzly SDK and earn on every session, no paywall required.