Sigrix is a marketplace for curated AI prompts, assistants, and agents, built to help teams discover trusted tools fast.

How are listings reviewed?

Every listing goes through a quality check for clarity, safety, and completeness before it appears in the catalog.

Do I need an account to browse?

You can explore the marketplace without an account, but you'll need to sign in to purchase or publish.

v0.9.11Sigrix-delivered MCP servers and a rebuilt marketplace

The marketplace for vetted AI tools.

Buy an AI agent, prompt, skill, persona or assistant once — then run it in the AI tools you already use.

Browse all listings or publish your own →

How Sigrix works

What is an AI agent marketplace?

A curated catalog of ready-to-use AI agents, prompts, skills, assistants, personas and MCP servers — published by independent creators, reviewed by a human curator before they go live.

Search listings…

AllPromptsPersonasSkillsAgents

AI Tools for Marketing Strategy @fed · Free

Emotional Support & Safe Space Chat @fed · Free

MoneyLeak AI @fed · Free

Filter by type, use case or price. Anyone can open a listing — no account needed.

Why buy on Sigrix →

Picks

Reviewed and recommended

Browse all →

Moderator pick

Graphic Joiner

product @marcinplazienski · $11.00 View listing →

Loved by the community by favourites

MoneyLeak AI persona 15 2

Make Money Online Strategist prompt 15 3

ScrollStop AI prompt 14 4

Bimmer Wrench AI persona 12 5

BudgetBlueprint AI persona 11

Buyers' favourite listings from their library — the count updates daily.

Browse the catalogue

What's on Sigrix

The newest listings from independent creators, and the ones people are buying.

See all AI agents →

New this week 2 published in the last 7 days

Text Utils MCP

Local text utilities for counting words and creating lowercase, URL-friendly slugs. No API keys or external services required.

@fed Free

UK Legislation Changes MCP Server — point-in-time amendment history

Track what changed in UK law and when. 4 free tools over streamable HTTP: search UK legislation, pull any provision's version history, get recent amendments, and find the most-amended provisions. No API key, no signup.

@mitcheldavis Free

Dark Avant-Garde Fashion Photography

Create striking, photorealistic fashion portraits with dramatic flash lighting, pitch-black backgrounds, sculptural highlights, and rich photographic textures. Customize models, animals, outfits, expressions, and poses while maintaining a consistent dark editorial aesthetic. Perfect for avant-garde fashion imagery, artistic portraits, luxury campaigns, and dramatic studio photography.

@felinecanvas $2.99

Ethereal Couture Runway Photography for Midjourney

Create breathtaking haute couture runway photography. Design luxurious evening gowns with flowing silhouettes, luminous satin, delicate chiffon, velvet, lace, and dramatic trains. The prompt captures realistic fabric textures, elegant movement, cinematic runway lighting, subtle film grain, and a mysterious editorial atmosphere. Distinctive lips-to-floor framing emphasizes the garments, creating sophisticated high-fashion photography and designer fashion concepts.

@felinecanvas $2.99

Popular right now ranked by likes, ratings and sales

AI Tools for Marketing Strategy

Generate a curated list of top AI tools for marketing with use cases, pros/cons, and recommendations.

@fed Free

Emotional Support & Safe Space Chat

A compassionate chat assistant that listens, validates emotions, and gently helps users process feelings and regain calm

@fed Free

MoneyLeak AI

A personal finance forensics specialist that finds the silent money drains bleeding your bank account — forgotten subscriptions, overpaid fees, invisible habits — and gives you the exact fix for each one.

@fed Free

Brutal Truth Generator

Get raw, unfiltered truths that challenge beliefs and spark strong reactions.

5.0 (1)

@user_fix Free

MCP

Work from your editor

sigrix-mcp connects Claude Code, Claude Desktop, Cursor or VS Code to Sigrix. Sellers draft, check and submit a listing without opening the publish wizard — moderation is unchanged.

Open source →

uvx sigrix-mcp Your client runs it

Connect

One line in your client, plus a seller token. Your client runs it with uvx — nothing stays installed.

Publish

Draft, check against the rules, submit. A moderator reads it, exactly as in the wizard.

Buyers install

Skills install from Plugins. Free ones join the public sigrix-free feed — no account, no token.

list_categorieslist_my_listingsget_listingcreate_draftupdate_draftcheck_draftsubmit_for_reviewimport_skill_mdexport_skill_md

Runs on a seller token Publish from your editor → README

Latest

What's happened recently

Releases, new listings and writing from the Sigrix team — newest first.

Full changelog →

Updates

Founding seat @mitcheldavis claimed a founding seat New listing Text Utils MCP Founding seat @christinerjamison claimed a founding seat New seller mitcheldavis opened a storefront — 1 listing New listing UK Legislation Changes MCP Server — point-in-time amendment history New listing Dark Avant-Garde Fashion Photography

All posts Newest listings

Start here

Foundations · 9 min read

The 5 AI building blocks of Sigrix

Prompts, personas, skills, assistants, agents, and the products that bundle them — explained with a simple car analogy.

Read guide →

Foundations · 6 min read

How we count tokens

What a token is, how input and output costs add up, and where to read the estimate on any listing before you buy.

Read guide →

Buying · 6 min read

Is there a marketplace for AI agents?

What you can actually buy, how a purchase works end to end, and why it beats building an agent from scratch.

Read guide →

Buying · 6 min read

Where to learn about AI agents in 2026

The vocabulary, one worked example, and a tested agent to try — the fastest way to actually understand AI agents, without the hype.

Read guide →

Founding seller program

We're live. Join the founding cohort.

Sigrix opened on May 15, 2026. A limited number of founding seats are still open — claim yours and keep the perks for life.

Founding badge — permanent, and visible to every buyer.
Featured Placement — top of discovery at launch.
First-Mover Advantage — less competition, reputation that compounds.
Reduced Commission — 15% instead of 20%, locked for life.

Founding seats 5 open

Seats close when the founding cohort fills. Every perk is locked for life.

Apply as a founding seller Learn more about selling →

Be the first to know

Get told when the next cohort opens.

One email when founding seats open again — and nothing else. No drip sequence, no newsletter, one click to leave.

SIGRIX MARKETPLACE

Meet our founding sellers.

Sigrix was built with these people — the first to submit, the first to get verified, and the first to trust that a curated, human-reviewed marketplace was worth building.