Every governed AI agent action, verifiably attested.
Sentinel is the public transparency surface for Attestify OS — the governance layer for AI agents that touch money, access, or data. Every governed action: payments, access grants, data exports — attested on-chain via EAS and ACP-compatible contracts. No black boxes. Full auditability.
Sentinel isn’t a side project built for a token launch. Its budget, approval, and risk checks are the same governance engine Attestify OS runs across its wider product suite — re-exposed here as public, on-chain-attested endpoints for any agent, live first on Base and Robinhood for the agent ecosystem.
What Sentinel has caught
Every policy check is evaluated in real time — including the ones that fail. Overspending doesn’t reach the chain; it gets stopped here, first.
Official contract addresses
Always verify the $SENTI contract address here before buying or trading — these are the only addresses Attestify OS publishes. Never trust an address from anywhere else.
Each deployment below is chain-native and issued separately at launch — $SENTI on Base, Robinhood Chain, and Solana are not the same balance and do not aggregate. The same discount schedule applies identically on every supported chain.
Coming soonNot yet deployed. This box will show the real, verified $SENTI contract address the moment it goes live — nowhere else.
Coming soonNot yet deployed. This box will show the real, verified $SENTI Robinhood Chain contract address the moment it goes live — nowhere else.
Coming soonNot yet deployed. This box will show the real, verified $SENTI Solana contract address the moment it goes live — nowhere else.
The $SENTI token, in plain terms
Sentinel the product and $SENTI the token are two separate layers. The product is governed and paid for independently of the token; the token exists to fund and coordinate the network around it — never to gate or control it.
What $SENTI is — and isn’t
- Access perks — fee discounts, higher limits, and premium monitoring for holders. Live today — see the holding tiers below.
- Funding the network — treasury and ecosystem incentives that grow Sentinel over time.
- Bounded governance — network participation standards, risk-policy templates, service tiers, and ecosystem grants.
- Paying for Sentinel services — those are always billed in USDC via x402/ACP, never the token.
- Equity, profit share, or any ownership claim in Attestify OS the company.
- A vote on customer-specific approvals or emergency security actions — those stay off-token, always.
- A requirement to use the core product — Sentinel works whether or not you hold $SENTI.
What holding actually saves you
This isn’t staking, and it isn’t locked. Holding $SENTI at call time unlocks a tiered discount on the USDC price of every Sentinel check — Budget Gate, Settlement Verify, Fleet Drift Scan, Approval Workflow, Predictive Alert. The more agents you run, the more a holding pays for itself in avoided cost.
| Tier | Holding | Discount |
|---|---|---|
| Builder | 25,000 $SENTI (0.0025% of supply) | 5% |
| Operator | 100,000 $SENTI (0.01% of supply) | 10% |
| Scale | 500,000 $SENTI (0.05% of supply) | 20% |
| Network | 2,000,000 $SENTI (0.2% of supply) | 30% |
| Tier — scale | Monthly calls | Base cost | With holding |
|---|---|---|---|
| Builder — a few agents | 10,000 | $720 | $684 (save $36) |
| Operator — recurring checks | 100,000 | $7,200 | $6,480 (save $720) |
| Scale — ~100–300 agents | 1,000,000 | $72,000 | $57,600 (save $14,400) |
| Network — ~1,000+ agents | 10,000,000 | $720,000 | $504,000 (save $216,000) |
Base cost assumes an even split across all 5 Sentinel services at their published per-call prices ($0.05–$0.10) — a $0.072/call blended average. Your actual mix of calls will differ. Each row applies the discount tier realistically held at that scale (Builder through Network, per the ladder above), not a blanket top-tier assumption. Discount applies to real usage at current published pricing — not a return, not staking, not a promise of price appreciation. Total supply fixed at 1,000,000,000 $SENTI per supported chain — each chain-native deployment is issued separately and does not aggregate with the others.
Where network growth goes
As real USDC fee revenue comes in from Sentinel usage, the intention is to use a share of it to buy $SENTI back on the market — growth funding demand, directly. This is tied to actual fees generated, not guaranteed or scheduled in advance: if usage is low, there’s nothing to buy back with yet. If adoption goes the way we expect, this starts in the coming months. Not a promise, not a fixed schedule — a direct commitment to put growth back into the token as growth actually happens.
Governed transactions
No attestations yet. Feed activates on first governed transaction.
Governance contract
- Your agent executes actionPayment, access grant, or data export triggered by your agent runtime.
- Attestify OS governsPolicy engine evaluates the action against tenant rules in <50ms.
- Receipt written on-chainEAS attestation minted on Base. Immutable audit trail created.
- Sentinel reflects it hereThis public feed updates within seconds. Anyone can verify.
Sentinel — proof that Attestify OS is genuine
“The agent economy needs a trust layer. Not a promise — a proof. Sentinel is that proof, anchored on-chain, readable by anyone.”
No credit card. Production-ready governance for any AI agent — including Virtuals agents on Base.