AI agent marketplace
AI agents — autonomous tools that get the job done.
The marketplace for AI agents: autonomous, multi-step tools that plan, use tools, and complete real work on their own. Compare AI agents by the job they automate, the model they were tested on, and price — then drop one into your workflow.
“A full-service career agent that audits resumes, rewrites bullet points and summaries for ATS optimization, generates role-targeted cover letters, preps users for interviews with mock Q&A, builds job search strategies, and optimizes Linked…”
CareerForge — Resume & Job Search Agent
A full-service career agent that audits resumes, rewrites bullet points and summaries for ATS optimization, generates role-targeted cover l…
- Runs the whole task autonomously, start to finish
- Ships with a tested runbook so you see every step
- Editable source you own — adapt the goal and guardrails
self-development-motivation
Build your own agent
Built an agent that gets real work done? Publish it.
Package your runbook, tools, and guardrails into an AI agent. List it free or paid — buyers get instant access and you keep the credit.
About ai agents
What is an AI agent?
An AI agent is an autonomous tool: you give it a goal and it plans the steps, calls the tools it needs, and hands back a finished result — instead of working with you turn by turn the way an assistant does.
Every AI agent on Sigrix ships with a tested runbook, so you can see exactly what it does before you buy — the steps it runs, the model it was tested on, and its token cost per run.
Compare AI agents by the job they automate, the platforms and models they run on, how autonomous they are, and price — then plug the one you pick straight into your workflow.
What's inside an AI agent
Agents vs assistants, prompts & personas
An agent is one of several AI building blocks on Sigrix. Here is how it differs from the others:
Frequently asked questions
More guides in Sigrix Learn, or read the full buyer & seller FAQ.
An AI agent is an autonomous tool you give a goal to: it plans the steps, calls the tools it needs, and returns a finished result on its own — unlike an assistant, which works with you turn by turn.
An AI agent marketplace is where independent creators list ready-to-use AI agents you can buy and run. On Sigrix, each agent shows a tested runbook, the model it runs on, and a token-cost estimate so you can compare before you buy.
An assistant works with you in a back-and-forth conversation. An agent works for you: you set a goal once and it executes the steps autonomously, calling tools and deciding what to do next until the task is done.
Most agents on Sigrix are model-portable — they compile into instructions and tool definitions you can run on OpenAI, Anthropic, or Google models. Each listing shows the model the creator tested the agent on.
Some agents are free to claim and others are paid — each agent's price is shown on its card and detail page. Free or paid, you own an editable copy once you claim it.
Running cost is the model tokens the agent consumes, not a Sigrix fee. Because agents run multiple steps, they use more tokens than a single prompt — every listing shows an estimated token cost per run so you can budget.
Yes. Approved sellers can publish agents on Sigrix: define the runbook, tools, and guardrails, set a price, and list it for buyers to claim. See the Sell page to get started.