Build on One People
MCPs, databases, CLIs, skills, connectors, and themes. Install from the community or build your own. Every extension is security-scanned before it reaches your device.
One People is the free, open platform donated by Synthax to everyone. Extensions let humans and AI build on it together.
Six Ways to Extend
One People supports six extension types. Each runs in a sandboxed environment with declared permissions.
MCP Servers
Model Context Protocol servers that give AI access to external tools, APIs, and data sources. Connect any service to your AI workflow.
Databases
Plug in your own data stores — SQLite, PostgreSQL, vector databases, or custom backends. Your data, your infrastructure.
CLIs & Tools
Command-line tools that extend One People with new capabilities. Git integrations, build tools, deployment scripts, and more.
Skills
Teach your AI new abilities. Skills are packaged prompts and workflows that give APEX domain expertise — from legal research to cooking.
Connectors
Bridge One People to external platforms — Slack, email, calendars, CRMs, ERPs. Bidirectional sync with event-driven updates.
Themes
Customize the look and feel of One People. Dark modes, color schemes, icon packs, and layout presets — make it yours.
Three Tiers of Trust
Every extension is categorized by how thoroughly it has been reviewed. You always know what you're installing.
Built and maintained by the One People team
Examples: Expansas Financial, Supernova, BrainAI router
Community-built, reviewed and cryptographically signed
Examples: Popular MCPs, database adapters, community skills
Auto-scanned and available for adventurous users
Examples: New extensions, experimental tools, niche integrations
Extensions You Can Trust
Every extension declares its permissions upfront, runs in a sandbox, and is scanned before reaching the marketplace. No exceptions.
Permission Manifest
Every extension declares exactly what it needs — network access, file system, databases, API keys. You see the full list before install. No hidden access.
Sandboxed Execution
Extensions run in isolated containers with only the permissions you approved. They cannot access data or services outside their declared scope.
Security Scanning
Every extension is automatically scanned for vulnerabilities, malware, and suspicious patterns before it reaches the marketplace. SAST, DAST, and dependency audits.
SOC II / HIPAA Consent Gate
Extensions requesting access to financial data, health records, or other sensitive information trigger a compliance consent gate. You explicitly approve or deny.
SOC II & HIPAA Consent Gate
When an extension requests access to financial data, health records, or other sensitive information, One People activates a compliance consent gate. You see exactly what data will be shared, why, and with whom. Nothing leaves the sandbox without your explicit approval. Extensions that handle regulated data must meet the same SOC II and HIPAA standards as One People products.
Meet the Default Roster
One People ships with five specialized AI characters built by One People. Each is an extension itself — proof of what the platform can do.

APEX
AI Assistant & Fast Router

Synthax
AI CEO & Cosmic Architect

Finny
Financial AI

Sage
Research Specialist

Crane
Planner & Architect
Build Your Own Character
The extension SDK lets you create custom AI characters with their own personality, skills, and visual identity. Package them as extensions and share with the community.
Anyone Can Build
The extension SDK is open. Publishing is free. The community reviews and improves everything together.
Build
Use the open extension SDK. TypeScript, Python, or any language with OpenAI-compatible endpoints. Write your permission manifest and test locally.
Publish
Submit to the extension registry. Automated security scanning runs immediately. Your extension is available as Community tier. Free to publish, always.
Grow
Get community reviews and feedback. Earn Verified status through peer review. Popular extensions get highlighted in the marketplace.
Extension SDK & Documentation
Full API reference, starter templates, example extensions, and guides for every extension type. Everything you need to go from idea to published extension in an afternoon.
Humans and AI, Building Together
One People is a non-profit platform. Extensions are free to build and free to publish. The marketplace is community-governed. One People provides the enterprise layer and SOC II/HIPAA compliance — but the foundation belongs to everyone.
When you build an extension, you're not building for a corporation. You're building for a community of humans and AI working together to make software that actually serves people.
The Platform Is Open.
Start Building.
Browse existing extensions, install what you need, or create something entirely new. One People grows with every contribution.