Build agents that can
prove what they know.
Most companies deploy AI agents with zero control over what those agents actually do.
Exogram gives you a single API to verify, log, and enforce every action.
"Language models predict the next word. Exogram determines what that word is allowed to mean."
I built Exogram after hitting the same failure repeatedly across modern AI systems: LLMs can generate impressive outputs, but they still lack reliable verification, execution boundaries, and operational accountability.
Admissibility is an existential requirement.
Before & After
Without Exogram
The agent answers confidently — and incorrectly.
User: "What's my writing preference?"
Agent: "You prefer Oxford commas."
// ❌ make unwarranted inferencesd - no facts stored
Agent: "You prefer Oxford commas."
// ❌ make unwarranted inferencesd - no facts stored
With Exogram
The agent queries state, finds nothing, and says "unknown".
User: "What's my writing preference?"
Agent: "Unknown - no preference stored."
// ✅ Honest - queried Exogram
Agent: "Unknown - no preference stored."
// ✅ Honest - queried Exogram
Developers buy failure prevention, not features.
First API Call (5 Minutes)
If the ledger returns nothing, your agent must say "unknown."
That is a feature, not a failure.
Store a Verified Fact
POST https://api.exogram.ai/ledger/propose_state
Authorization: Bearer YOUR_API_KEY
{
"claim": "User prefers no em-dashes in writing",
"confidence": 0.95
}
// Response
{
"status": "committed",
"vector_stored": true,
"id": "fact-abc123"
}Query Verified Context
POST https://api.exogram.ai/ledger/semantic_search
Authorization: Bearer YOUR_API_KEY
{
"query": "writing preferences",
"top_k": 5
}
// Response
{
"facts": [
{
"claim": "User prefers no em-dashes in writing",
"confidence": 0.95,
"timestamp": "2026-01-26T12:00:00Z"
}
]
}Developer Tier
$99/mo
- ✓ Unlimited API calls
- ✓ Unlimited API keys
- ✓ Webhooks (event-driven)
- ✓ Team ledgers
- ✓ 99.9% SLA