Without a policy layer
You either approve every micro-payment by hand, or hand the agent unlimited wallet access. Neither scales.
Colosseum Frontier · AI × Solana
Agents can now pay.
Agents can now pay.
You decide what they're
allowed to buy.
AgentPass Guard is a policy simulator and guard layer for AI agents using pay.sh / x402-style payments on Solana. Set the budget, the allowlist, the approval threshold — every paid action gets checked against your rules before a lamport leaves the wallet.
5guardrail checks per action
3scripted agent decisions
0backend required
Pay.sh·
x402·
Solana·
USDC·
Memo program·
Devnet receipts·
Pay.sh·
x402·
Solana·
USDC·
Memo program·
Devnet receipts
The wedge
Pay.sh and x402 give agents a checkout.
Pay.sh and x402 give agents a checkout.
AgentPass Guard gives builders the brakes.
With AgentPass Guard
A human-defined pass: budget, allowlist, threshold, expiry, revocation. Every paid call is evaluated and explained before settlement.
On Solana
Approved actions settle on devnet with a Memo-program receipt. Cheap, fast, inspectable — the right rail for agent payments.
Live demo
Set a policy. Watch the agent get checked.
Three scripted actions — one auto-approves, one is blocked, one needs a human. Every decision is shown with the exact guardrail trace.
Step 1 · Human policy
Research Agent Pass
Step 2 · Scripted agent
Try paid actions
Step 3 · Decision
Pick an action above to see the policy decision, the guardrail checks, the receipt, and the remaining budget.
Audit trail
Receipts
| Time | Agent | Service | Amount | Decision | Receipt |
|---|
Solana proof
Approved actions can settle on devnet, with a memo-program receipt.
What the prototype proves
- A human-defined policy is evaluated before an agent can spend.
- Every action produces an auditable decision record.
- Builders can export the policy and receipt log as JSON.
- Approved spend can be linked to a Solana devnet transaction.
Optional devnet command
npm run devnet:demoCreates a temporary devnet wallet, sends a tiny payment, attaches a receipt via the Solana Memo program, and prints an explorer link. Falls back to a simulated receipt if the public faucet is rate-limited.
Submission
Built for Colosseum Frontier — AI × Solana.
Local-first. No backend. Static-deployable. Open source.