AI agents and assistants are the most valuable things you can sell, because they do the most work. An assistant holds a conversation and works with the user step by step; an agent runs autonomously and hands back a finished result. If you have built one that genuinely works, here is how to turn it into a listing buyers will pay a premium for.
Agents vs assistants — sell the right thing
- An assistant works with the buyer: multi-turn, conversational, great for coaching, support, and writing partners.
- An agent works for the buyer: you give it a goal and it runs the steps on its own — research, outreach, data jobs.
Both are premium listings. If you are deciding which you have built, the AI building blocks guide draws the line, and the AI assistant marketplace and AI agent marketplace show live examples.
Step 1 — Build something that reliably works
A buyer is paying you to skip the hard part: getting the thing to work consistently. Before you list, make sure your agent or assistant handles the common cases and the messy ones without going off the rails. Reliability is the product.
Step 2 — Document the runbook
The biggest difference between an agent that sells and one that does not is transparency. Buyers want to see exactly what it does before they trust it:
- The steps it runs and the tools it calls.
- The model you tested it on.
- The token cost per run, so there are no billing surprises.
A clear, tested runbook is what turns "interesting demo" into "I'll buy it."
Step 3 — Test it on real inputs
Run your agent or assistant against realistic inputs, not just your happy-path example. Note where it does well and where it needs guardrails. Buyers reward listings that are honest about scope — it sets expectations and earns reviews.
Step 4 — Price and publish on Sigrix
Agents and assistants command higher prices than prompts because they do more work. Price for the value of the job done, publish on Sigrix, and let the platform handle discovery, checkout, and payouts. Buyers get an editable copy they own and can adapt.
Publish your agent or assistant →
Tips that make agents sell
- Lead with the job done, not the tech. "Tailors your resume to any job post" beats "multi-step LLM pipeline."
- Show the runbook. Visible steps build the trust that closes the sale.
- State the model and token cost up front.
- Start with reviews in mind — deliver well early, and proof will let you raise prices.
FAQ
How do I sell an AI agent? Build an agent that reliably completes a task, document its runbook (steps, tools, model, token cost), test it on real inputs, set a price, and publish it on a marketplace like Sigrix that handles discovery and payouts.
Where can I sell AI agents and assistants? On Sigrix — a marketplace built for AI agents, assistants, and the other building blocks. It gives your listing a crawlable page, checkout, and payouts. Start here.
How much can I charge for an AI agent? More than a prompt — agents do multi-step work, so they are priced for the value of the whole job. Price for the outcome, and let early reviews support higher prices over time.
What is the difference between selling an agent and an assistant? An assistant is a multi-turn chat helper that works with the buyer; an agent runs autonomously and returns a finished result. Both are premium listings; you sell the one you have actually built.
Do buyers get to edit what they buy? Yes. On Sigrix a buyer owns an editable copy of the agent or assistant, so they can adapt the goal, steps, and guardrails to their own workflow.
Built an agent or assistant that gets real work done? Publish it on Sigrix — free to start, and you keep what you earn. New to selling? Start with how to sell AI prompts.
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