MarketplaceFounding sellers

Meet our founding sellers.

Sigrix was built with these people. They were the first to submit. The first to get verified. The first to trust that a curated, human-reviewed prompt marketplace was worth building. Everything that came after is built on what they started.

4 of 15 joined

Sellers joined 4 / 15

11 spots remaining · launches May 15, 2026

Marcin P.

Prompt engineer · Marketing & Content

AI Enthusiast, Prompt Engineer, and Business Analyst with 10+ years of experience in global banking. I create AI-powered solutions, including prompts, assistants, and autonomous agents designed to streamline processes and enhance productivity. Passionate about psychology, neurobiology, and the intersection of human intelligence and artificial intelligence.

Sigrix.io stands out from other AI marketplaces by focusing not only on prompts but also on complete AI assistants and autonomous agents. The platform creates a unique ecosystem where creators can easily share, monetize, and discover practical AI solutions. Its combination of innovation, usability, and a growing community makes Sigrix.io a promising destination for both AI developers and businesses looking for ready-to-use AI tools.

Dima I.

Prompt engineer

Prompt engineer trying to create reliable, structured prompts for AI workflows. Focused on clarity, consistency, and real-world performance, with experience optimizing prompts for ChatGPT, Claude, and other (still learning) language models.

A prompt isn't done when it works once — it's done when it works on the inputs you didn't think of.

User_fix

Prompt engineer · Agents & complex AI systems

Builds and stress-tests complex AI systems — multi-step agents, RAG pipelines, and orchestration that has to survive real traffic. Restlessly experimental: chases the hard, ambitious use cases most sellers avoid, then ships the version that actually holds up. Everything published comes with eval suites, failure-mode notes, and version history — so you adopt with confidence, not vibes.

I like the problems that don't have a clean prompt yet — the ones you have to build a whole system around.

Rajitha Prasad

Spot available

Become a founding seller

FOUNDING PERKS

What you get when you join

Locked in for the life of your account.

Founding badge

Permanent verified mark, visually distinct from the standard badge. Visible to every buyer, forever.

Featured placement

Top of discovery at launch — the platform's highest-traffic moment. Earned, not paid for.

15% commission

Reduced rate locked for the life of your account. Standard is 20%.

Direct support

Onboarding from the Sigrix team, co-marketing in launch announcements, and a private Slack channel.

Early access to experimental features

Get every experimental feature before anyone else — and help shape what ships to the rest of the marketplace.

APPLY

Be one of the last 11 founding sellers.

Applications are reviewed by a human. We're not looking for the most followers — we're looking for the kind of craft that holds up the bar for everyone who comes after.

You've shipped at least one prompt, persona, or agent that real people use
You can write a clear description of what your work does and who it's for
You can commit to publishing your first listing within 14 days of launch
Bonus: portfolio, prior client work, or community reputation

Apply as founding seller Read the seller agreement →

FAQ

What founding sellers ask

Why only 15?: Curation only works when the bar is real. Fifteen people we can personally onboard, support, and help succeed at launch — versus a flood of unvetted accounts. It's deliberate.
What does "founding" actually mean long-term?: Your founding badge is permanent. The 15% commission is locked for the life of your account. Featured placement runs through launch month and the first major marketing push.
Can I sell prompts, personas, and agents?: Yes — all three. Your founding status applies to your shop, not individual listings, so anything you publish under your account benefits.
Do I need an audience already?: No. We weight craft over follower count. A working portfolio of real prompts buyers would pay for is enough.
What happens after the 15 are filled?: Standard sellers can apply through the normal verification flow at 20% commission. Founding seats don't reopen.
Is there an exclusivity clause?: None. You can keep selling on other platforms. We just ask that your storefront on Sigrix gets your A-tier work.