Simple, honest pricing
Start free. Scale when you need to.
Developers adopt for free. Teams upgrade for scale and retention. No feature gating — query, search, BYOK, and verify are free on every plan.
Free
$0/month
Full product, no feature limits. Start building immediately.
Get started free
Usage
✓50,000 commits per month
✓Up to 5 agents
✓Up to 5,000 contexts
✓30-day retention
Full product — no feature limits
✓Full replay and fork
✓Verify and export
✓BYOK encryption
✓W3C DID agent identity
✓Compliance reports
✓Agent self-registration
✓Context Passport schema
✓Chain viewer and hooks
✓Query and search — free on all plans
Most popular
Pro
$39/month
Same full product. More commits, more agents, longer retention.
Start Pro
More scale, same full product
✓500,000 commits per month
✓Up to 20 agents
✓Up to 50,000 contexts
✓90-day retention
✓Everything in Free
Enterprise
Custom pricing
Unlimited scale, long-term audit trails, organizational governance.
Start Enterprise trial
Organizational scale
✓Custom commits, pooled or unlimited
✓Unlimited agents
✓Unlimited contexts
✓Custom retention, up to 1 year and beyond
✓Everything in Pro
✓Advanced analytics across all agents
Full comparison
| Feature | Free | Pro | Enterprise |
|---|
| Usage |
| Monthly commits | 50,000 | 500,000 | Custom |
| Agents | 5 | 20 | Unlimited |
| Contexts stored | 5,000 | 50,000 | Unlimited |
| Retention | 30 days | 90 days | Custom |
| Core functionality |
| Replay endpoint | ✓ | ✓ | ✓ |
| Fork from checkpoint | ✓ | ✓ | ✓ |
| Verify endpoint | ✓ | ✓ | ✓ |
| Chain viewer | ✓ | ✓ | ✓ |
| Export audit artifact | ✓ | ✓ | ✓ |
| Hooks and policies | ✓ | ✓ | ✓ |
| Context Passport schema | ✓ | ✓ | ✓ |
| Agent self-registration API | ✓ | ✓ | ✓ |
| Scale and organization |
| Query and search | ✓ | ✓ | ✓ |
| Compliance reports | ✓ | ✓ | ✓ |
| Advanced analytics | — | — | ✓ |
| Organizational scale |
| BYOK encryption | ✓ | ✓ | ✓ |
| W3C DID agent identity | ✓ | ✓ | ✓ |
| Self-host (MIT license) | ✓ | ✓ | ✓ |
Common questions
Why is full functionality available on every plan?
We believe replay, fork, verify, and export should be available to every developer. Gating core features by plan creates friction that slows adoption and rewards the wrong behavior. Scale, retention, and organizational controls are where pricing makes sense.
What counts as a commit?
Every call to POST /api/commit counts as one commit, regardless of payload size. Read operations (replay, verify, pull, export) and fork operations do not count toward your commit limit.
What is a context?
A context is a stored commit record. The contexts limit is the maximum number of commit records retained in your account at any time. Older contexts beyond the retention period are pruned automatically.
What happens when I hit a limit?
We notify you at 80% usage. Commits over the monthly limit return a 429 response. We do not silently drop data. Upgrade anytime to restore access immediately.
Can I self-host DarkMatter?
Yes. DarkMatter is fully open source under the MIT license. Deploy it inside your own infrastructure with Node.js and Postgres. The self-hosted version includes all features. Note that self-hosted deployments do not carry the independent audit trail guarantee since you control the infrastructure.
What is the Context Passport?
The Context Passport is DarkMatter's canonical schema for AI agent context handoffs. It is a structured, model-agnostic format any LLM or framework can produce and consume, with built-in cryptographic integrity, agent attribution, and lineage tracking. The goal is for it to become a standard across multi-agent systems the way JSON:API or OpenAPI are standards in web development.