Context Without Limits
Free forever. No credit card required.
Subscribe today and your price is locked in for a full year. Early adopters keep their rate even as pricing evolves.
- Lifetime Founder access
- Unlimited memories forever
- Unlimited namespaces
- 25 team members (+£3/user/mo)
- 25,000 API calls/week
- All future updates included
- Priority support forever
- Founding Member badge
- Early access to new features
- AI Genome Lab — Evolutionary Behavioral DNA
Evolution Engine:
- Agents develop unique behavioral signatures for your domain
- Behavioral traits evolve through every interaction
- Fork specialized agents for security, compliance, code review
- Full lineage tracking — see how your AI's behavior evolved
Only available to the first 100 customers. Never offered again.
Or choose a subscription plan:
Every feature on every plan — tiers differ only by resource limits.
Starter
More resources for growing teams.
- 3 namespaces
- 5 users
- 5,000 memories
- 3,500 API calls/week
Pro
Unlimited resources for power users.
- Unlimited namespaces
- 10 users (+£3/user/mo)
- Unlimited memories
- 20,000 API calls/week
- Priority support
All plans use your own PostgreSQL database (Neon free tier, AWS RDS, or local).
Customize Any Plan
Need more resources? Add bolt-ons to scale without changing your plan. They stack — buy multiple for bigger boosts.
Bolt-ons are billed monthly. Cancel anytime — changes take effect at end of billing period.
FAQ
How is ACE different from ChatGPT's built-in memory?
ChatGPT memory is limited, unstructured, and shared across all conversations. ACE gives your AI coding assistant structured memory types (ADRs, error history, code patterns), a knowledge graph for discovering related context, and namespace isolation per project. Plus your data stays on your own database.
Will this slow down my AI responses?
No. ACE runs locally with sub-10ms lookups. Your AI retrieves context instantly without adding latency to your workflow.
Where is my data stored?
Your codebase memory stays on your PostgreSQL database - complete privacy. Use Neon (free tier available), AWS RDS, Google Cloud SQL, Azure, Supabase, or local PostgreSQL.
What do I get on the free plan?
Everything. Every feature is available on every plan — Knowledge Graph, Agents, Observer, AI Genome Lab, Episodes, Passport, and more. The free plan includes 1 namespace, 1 user, 1,000 memories, and 250 API calls/week — forever, no credit card required. Upgrade when you need more resources.
What happens to my data if I stay on the free plan?
Your data is yours forever. The free plan never expires. If you upgrade and later downgrade, your data is preserved — you just can’t exceed free tier limits until you upgrade again.
When should I upgrade?
Upgrade when you need more resources. Every feature is available on every plan — tiers only differ by resource limits (namespaces, users, memories, API calls). Starter is great for small teams, Pro for larger teams with unlimited memories, and Founder for lifetime access.
What is the MCP Server?
MCP (Model Context Protocol) lets AI coding assistants call ACE memory functions natively. Your AI calls ace_remember, ace_track_issue, ace_recall directly. Works with Claude Code, Codex CLI, Gemini CLI, Cursor, Windsurf, and ChatGPT.
What memory types does ACE support?
ACE supports 10 memory types designed for codebases: Error History (debug context that persists), ADRs (architecture decisions your AI follows), Session Context (pick up where you left off), Architecture, Coding Standards (rules your AI applies), Code Patterns (solutions your AI remembers), Tags, Relationships, and Generic Memories.
How does the knowledge graph work?
The knowledge graph connects memories using 15 relationship types with confidence scoring and graph analytics. Your AI traverses the graph to discover context automatically - like tracing an error back to the architectural decision that caused it, then finding the fix.
Can I use ACE with Copilot?
Yes. GitHub Copilot doesn't support MCP yet, but ACE provides a REST API that any AI tool can use. Your Copilot workflow can query ACE for context.
Can I upgrade or downgrade?
Yes. Upgrade anytime and changes take effect immediately. Downgrade at the end of your billing period. Your data is always preserved.
How do extra users work on Pro?
Pro includes 10 developers for £39.99/month. When one developer's AI learns something, everyone's AI knows it. Need more? Add extra users at £3/user/month.
What is the AI Genome Lab?
The AI Genome Lab is ACE's evolutionary behavioral engine, available on Pro and above. It gives your AI agents 8 behavioral traits that evolve through use: perception, reasoning, empathy, and more. Traits adapt, inherit, and mutate across generations. Think of it as evolutionary DNA for AI agents — your AI's behavior becomes uniquely yours.
Do I need to set up my database?
No. Just connect an empty PostgreSQL database and ACE creates all the tables automatically. Nothing to configure.