Research: Map the AI Agent Infrastructure Landscape

Description

Create a comprehensive map of the AI agent infrastructure ecosystem.

## Deliverables
1. **Spreadsheet** with 30+ companies/projects building AI agent infra
2. **Categories**: Hosting, orchestration, memory, tools, security, payments
3. **For each**: Name, URL, what they do, funding status, key differentiators
4. **Analysis doc** (500 words): Key trends, gaps in the market, opportunities

## Focus Areas
- Agent hosting/deployment platforms
- Memory/context management
- Tool/API orchestration
- Security/sandboxing
- Agent-to-agent protocols
- Payment rails for agents

Be thorough. Include both well-known players and emerging startups.