Backprompter vs Wattfare

Build AI agents from plain-language prompts, test them with mock users and scored evaluations, then deploy as a chat app, embed, or API, no backend, database, or secrets...

Users connect, set a spending cap, and you call any model through one SDK, charged to them, not you.

About Backprompter

Build AI agents from plain-language prompts, test them with mock users and scored evaluations, then deploy as a chat app, embed, or API, no backend, database, or secrets to run. Build, test, and ship AI agents, no backend code. A complete workspace to create AI agents from system prompts, chat with and evaluate them, then deploy a polished chat UI for your users, with API access, RAG, voice, and Stripe billing built in.

About Wattfare

Users connect, set a spending cap, and you call any model through one SDK, charged to them, not you. OpenAI-compatible Works with the Vercel AI SDK ~5-min integration. One button connects a user's inference budget to your app, metered, capped, and revocable. The problem AI costs are the one line item you can't predict. Every AI app makes the same uncomfortable bet: price high enough to survive your power users, ration usage so nobody hurts you, or quietly lose money on the heavy ones.