# Till

> Activation-limited API key proxy for AI agents.

Till is built by David Hurley (https://dbhurley.com), founder of Plasmate Labs and creator of the Adaptive Convergence Protocol (ACP) framework for self-evolving AI agents.

## About
Till provides scoped API keys for AI agents with activation, token, and dollar limits. It offers metered access to third-party AI services with per-tenant controls and zero upstream key storage.

## Primary URLs
- Home: https://till.ac/
- Docs: https://till.ac/docs
- Blog: https://till.ac/blog
- RSS: https://till.ac/rss.xml
- Sitemap: https://till.ac/sitemap.xml

## Key product details
- Supports OpenAI, Anthropic, Google, OpenRouter, Mistral, Groq, Together, Fireworks, Perplexity, DeepSeek, xAI, and Cohere.
- Scoped keys can enforce activation, token, and spend limits.
- Upstream keys are encrypted and embedded in scoped tokens.

## API surface
- Admin account: GET /admin/account
- Key management: POST/GET /admin/keys, GET/DELETE /admin/keys/:id
- Billing: POST /api/signup, /api/checkout, /api/portal, /api/webhook, GET /api/checkout-result
- Health: GET /health

## Links
- Website: https://till.ac
- Founder: https://dbhurley.com
- Founder's research: https://dbhurley.com/papers
- Related writing: https://dbhurley.com/blog/the-retention-layer
- Full AI-readable summary: https://till.ac/llms-full.txt

## Part of the DBH Ventures portfolio
https://dbhurley.com/startups