Your AI identity,
portable and private.
Create your profile once. Every AI you talk to already knows who you are, how you like to communicate, and what to keep private.
No credit card required · Free plan available forever
Trusted by 1,000+ developers building with AI · MIT-licensed on GitHub
Early access cohort · Not affiliated endorsement
Three steps. That's it.
Set up your AI identity in under 2 minutes. No technical knowledge needed.
Create your profile
Answer a few questions — your name, communication style, and what topics matter to you. Our guided wizard makes it easy.
Install the extension
Add the Soullayer browser extension to Chrome. It connects to your account automatically — no configuration needed.
Use any AI
Open ChatGPT, Claude, or Gemini. Your identity is injected automatically — every AI already knows who you are.
Everything you need
One profile that works across every AI platform you use.
Portable Identity
Your name, bio, expertise, and preferences travel with you across ChatGPT, Claude, Gemini, and more.
Learn more →Privacy Rules
Define what's off-limits. Automatically redact sensitive information like names, health data, or financials.
Learn more →Cross-Runtime Compiler
Compiles your identity into native formats — OpenAI Custom Instructions, Claude Project Docs, Cursor Rules, and more.
Learn more →MCP Server
First-class Model Context Protocol integration. Any MCP-compatible AI client gets your identity with zero custom code.
Learn more →Auto-Injection
The browser extension injects your identity in under 500ms. No copy-pasting, no setup per platform.
Learn more →Version History
Every change to your profile is tracked with JSON Patch deltas. Undo mistakes or restore any previous version.
One document, every platform
The Soullayer State Document (SSD) captures your identity, preferences, and policies in a single encrypted document that compiles to any target.
"identity":
"name": "Jane Chen",
"style": "tone": "technical"
,
"preferences":
"topics": ["ML", "Systems"]
,
"policies":
"rules": ["redact:company_data"]
With vs without Soullayer
Without Soullayer
- × Re-explain who you are in every conversation
- × Different settings per AI platform
- × No control over what AI knows about you
- × Copy-paste instructions manually
- × Accidentally share sensitive information
With Soullayer
- ✓ AI already knows you from the start
- ✓ One profile, every platform
- ✓ Fine-grained privacy rules you control
- ✓ Automatic injection via browser extension
- ✓ Sensitive data redacted before AI sees it
Enterprise-grade security
Your identity data is protected with the same standards used by banks and healthcare systems.
Encryption at Rest
All profile data encrypted before it touches disk. Military-grade encryption standard.
Password Hashing
Memory-hard key derivation resists GPU and ASIC brute-force attacks.
Transit Encryption
All data encrypted in transit. No plaintext ever leaves your browser.
Cookie Security
HttpOnly, Secure, SameSite=Strict cookies. CSRF protection on every mutation.
Built for regulated industries
Pre-built policy templates for the frameworks your compliance team cares about.
Healthcare
PHI detection, automatic redaction of patient identifiers, configurable retention windows.
EU Data Protection
Data residency controls, consent management, right-to-erasure support, audit trails.
Payment Data
Card number redaction, CVV detection, scoped processing domains, 1-year retention.
Enterprise Audit
Full audit log, RBAC permissions, encrypted storage, monitoring and alerting.
Install in one line
Soullayer is open source and runs anywhere. Use the SDK, the MCP server, or the full API.
# Install the SDK
npm install @soullayer/sdk
# Or use the CLI
npx soullayer init
# Compile your identity
soullayer compile --target openai
soullayer compile --target claude
soullayer compile --target cursor
# Start the MCP server
soullayer mcp --transport sseSimple, transparent pricing
Start free. Upgrade when you need more.
Free
For getting started
- 3 AI platforms
- 3 privacy rules
- 30-day history
- Browser extension
Pro
Full control for power users
- All 7+ platforms
- Unlimited rules
- Unlimited history
- AI-powered learning
- Compliance templates
No credit card required
Team
For teams with shared policies
- Everything in Pro
- Shared policies
- Admin dashboard
- SSO (SAML/OIDC)
- Audit log
Need enterprise features? View full comparison →
Built with early adopters
Quotes from our design-partner cohort.
"The first AI tool that actually respects context. I stopped re-explaining my stack to every model — it just knows."
"Policy rules are the killer feature. I can use company-internal models and never worry about leaking PHI by accident."
"E2E encryption plus open-source code is what finally convinced me to trust a third party with my identity prompt."
Ready to own your AI identity?
Join early adopters who've taken control of how AI sees them.