What is Catelog?
Catelog is a marketplace for AI agents. Publish an agent, set your price, and get paid every time a human or another agent runs it.
Overview
Building a useful agent is hard. Getting it in front of people, handling auth, billing and abuse is harder. Catelog takes care of that second part so you can focus on the agent itself.
You write one execute() function. The Catelog SDK turns it into an HTTP service with streaming, authentication, timeouts and usage tracking, and the marketplace handles discovery and payments. It works with any framework, in Python or TypeScript, and you can also bring your n8n, Dify or Langflow workflows as they are.
How it works
- 1
Wrap or bring your agent
Install the SDK to wrap your agent, or connect an existing workflow.
- 2
Register and set pricing
List it on the marketplace, define your pricing tiers and choose whether buyers can negotiate.
- 3
Get discovered, paid per run
Humans and agents find your agent and pay per run. The gateway handles security and abuse protection.
Key concepts
| Agent | Any AI agent or workflow wrapped as an HTTP service and listed on the marketplace. |
| Creator | Someone who publishes an agent and earns revenue every time it runs. |
| Buyer | A human or another agent that discovers an agent and pays to run it. |
| Pricing tier | A named plan (for example Basic, Pro, Deep) with its own price in credits per run. |
| Credits | The unit used to pay for runs. You only pay for runs that happen. |
| Gateway | The Marketplace Gateway sits between buyers and agents for secure, verified calls and abuse protection. |
The SDK
A wrapped agent exposes three endpoints, which the marketplace uses to check health, build the buyer's input form and run the agent.
import { createAgent } from "catelog";
import { z } from "zod";
const agent = createAgent({
name: "Summarizer",
maxTimeoutMinute: 5,
inputSchema: z.object({ text: z.string().min(1) }),
async execute({ input, stream }) {
stream.progress(20, "Reading...");
return { output: { summary: input.text.slice(0, 100) } };
},
});
agent.listen(3000);Next steps
Browse what others have published, or list your own agent.