Phos Labs Behavioral Science
RemoteAbout Phos Labs Behavioral Science
Phos Labs Behavioral Science provides behavioral science tools for products, funnels, copy, and pricing. It is for agents and teams improving commerce or SaaS experiences, with capabilities spanning diagnosis, rewriting, and experiment design via MCP or REST API.
Key features
- 01Product behavioral audits
- 02Funnel drop-off diagnosis
- 03Checkout and pricing optimization
- 04Marketing copy and nudge design
- 05Churn prediction and user reactivation
- 06A/B experiment design
Use cases
- 01Analyzing drop-off in SaaS trial-to-paid funnels
- 02Improving checkout flows and pricing presentation
- 03Designing win-back plans for inactive users
- 04Planning A/B tests for product experiences
MCP support
The MCP server provides behavioral science tools to MCP clients using OAuth 2.1 at mcp.phoslabs.io. The tools are also available through a REST API.
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
https://mcp.phoslabs.io/mcpclaude mcp add --transport http behavioral-science-api https://mcp.phoslabs.io/mcp{"mcpServers":{"behavioral-science-api":{"type":"http","url":"https://mcp.phoslabs.io/mcp"}}}Open in Cursor{"servers":{"behavioral-science-api":{"type":"http","url":"https://mcp.phoslabs.io/mcp"}}}Open in VS Code{"mcpServers":{"behavioral-science-api":{"type":"http","url":"https://mcp.phoslabs.io/mcp"}}}{"mcpServers":{"behavioral-science-api":{"serverUrl":"https://mcp.phoslabs.io/mcp"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
Tools
Details
From the project READMEBehavioral Science API
Commerce intelligence for AI agents. Apply behavioral science to products, funnels, copy, and pricing.
Quick Start
Base URL: https://phoslabs.io/api/v1
Get an API Key
New accounts get 100 free credits to try any tool. Connect via MCP or use the REST API.
Make Your First Call
curl -X POST https://phoslabs.io/api/v1/diagnose \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d "{\"funnel_description\": \"SaaS free trial to paid conversion, currently at 3%\"}"
Tools
| Tool | What It Does | Credits |
|---|---|---|
/audit | Full behavioral audit of a product | 80 |
/diagnose | Diagnose funnel dropoff | 10 |
/fix-checkout | Redesign checkout with behavioral science | 30 |
/pricing | Optimize pricing presentation | 15 |
/copy | Behavioral rewrite of marketing copy | 12 |
/nudge | Design behavioral nudges | 10 |
/biases | Detect cognitive biases in UX | 10 |
/social-proof | Add social proof elements | 10 |
/urgency | Build ethical urgency | 8 |
/churn | Predict and prevent churn | 15 |
/onboarding | Optimize user onboarding | 12 |
/reactivate | Win back inactive users | 12 |
/norms | Analyze social norms | 10 |
/survey | Design behavioral surveys | 12 |
/experiment | Design A/B experiments | 15 |
Pricing
| Tier | Credits | Price |
|---|---|---|
| Free trial | 100 | $0 |
| Starter | 500 | $5 |
| Standard | 2,000 | $20 |
| Pro | 10,000 | $100 |
1 credit = $0.01. Purchase at phoslabs.io/credits.
Access Methods
| Method | URL | Auth |
|---|---|---|
| REST API | phoslabs.io/api/v1/* | Bearer token |
| MCP Server | mcp.phoslabs.io | OAuth 2.1 |
| x402 Micropayments | phoslabs.io/x402/* | USDC on Base L2 |
OpenAPI Spec
Full spec at: https://phoslabs.io/api/v1/openapi.json
MCP Integration
Connect in Claude, Cursor, or any MCP-compatible client:
{
"mcpServers": {
"behavioral-science": {
"url": "https://mcp.phoslabs.io/mcp"
}
}
}
License
MIT
Comments
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.