Oversight & governance platform for x402

Live payment visibility, spend guardrails, and complete records for AI agent micro-transactions.

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__SENTINELAGENT__ — bash

$ npm install __SENTINELAGENT__

$ cat agent.t

Jump into the dashboard →__SENTINELAGENT__

What is Sentinel?

Sentinel is the audit and governance layer for x402 payments. AI agents spend real money via the x402 protocol — Sentinel intercepts every payment, enforces budget limits, and logs a complete audit trail. One npm install. One line of code. Full visibility into where every dollar goes.

How it works

Every transfer tracked. Every spend cap applied. Complete records from agent to endpoint.

Install the SDK

npm install __SENTINELAGENT__

Wrap your requests

A single function call. Zero refactoring of your agent code.

Spend caps applied automatically

Per-call, hourly, and daily limits. Rejected before funds move.

Complete transaction records

Every transfer recorded. Dashboard, filters, and CSV export.

terminal

$ npm install __SENTINELAGENT__

added 1 package in 0.8s

$ node agent.js

[__SENTINELAGENT__] agent researcher-01 initialized

[__SENTINELAGENT__] budget: $25.00/hr enforced

→ GET https://api.example.com/data

← 402 Payment Required

→ x402 payment initiated $0.002

← 200 OK

✓ transfer logged tx: 0x3a9f...c2e1

✓ log entry created rec_7kQ3mXvB9pLw

✓ budget remaining $24.998 / $25.00

Our products

__SENTINELAGENT__

SDK

Lightweight wrapper around x402 fetch. Spend caps, transaction logs, anomaly detection. One install and you are live.

Dashboard

Live spend analytics. Agent telemetry. Filter by endpoint, category, and network. CSV export for reporting.

Soon

Proxy

Drop-in integration. Swap one URL. Every transfer tracked. No SDK, no install, no refactor needed.

Spend Policies

Per-call, hourly, daily, and lifetime caps. Anomaly detection. Endpoint allowlists and blocklists. Presets or custom.

Transaction Logs

Structured records for every transfer. Agent, endpoint, amount, tx hash, timestamp, and context. Searchable. Exportable.

Explorer

Public x402 transaction explorer. Endpoint leaderboards, network metrics, and volume trends. Live on-chain data.

0Networks Supported

0API Endpoints

0Integration Partners