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Ledgerbell Pro 30-Day API Key
x402
Ledgerbell Pro 30-Day API Key is a paid API for AI agents from ledgerbell.quietworklabs.workers.dev, paid per call via x402, $5/call, status unknown (last checked 2026-10-18).
Purchases a 30-day Ledgerbell Pro API key via x402 payment, enabling onchain monitoring alerts for wallets, Safe multisigs, and contracts across Ethereum, Base, Arbitrum, and Optimism.
Price / call$5
Success—
StatusUnknown
How this service works
Get a Discord, Slack, Telegram or ntfy alert when a wallet approves a token, a Safe changes owners or queues a transaction, or a proxy is upgraded. Base, Ethereum, Arbitrum, Optimism. Free tier, no signup.
Output
Returns a JSON object containing a new or extended `lb_` API key string, the plan name ('pro'), a Unix timestamp indicating when the pro plan expires (`pro_until`), and a hint for the next step (POST /api/watch with the key as a header) to start configuring watch targets.
Example use cases
Safe multisig security monitoring
“I need to monitor my team's Safe multisig on Ethereum — get me a Ledgerbell Pro key so I can get Slack alerts whenever an owner is added or removed, or a transaction gets queued.”
Token approval watchdog for DeFi wallet
“Can you grab a Ledgerbell Pro API key for me? I want to get Telegram notifications any time my wallet approves a token on Base or Arbitrum so I can catch any suspicious approvals fast.”
Extend existing Ledgerbell subscription
“My Ledgerbell Pro plan is about to expire — use my existing key lb_0123456789abcdef0123456789abcdef01234567 to extend it for another 30 days so my proxy upgrade alerts keep running on Optimism.”
Technical details
Endpoint
GEThttps://ledgerbell.quietworklabs.workers.dev/x402/pro-30d?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need programmatic, automated onchain monitoring with webhook-style push alerts to Discord, Slack, Telegram, or ntfy — specifically for EVM chains (Ethereum, Base, Arbitrum, Optimism). Prefer this over generic blockchain indexers when you need no-code notification delivery and Safe multisig-specific event detection (owner changes, queued transactions) out of the box. Use the optional `key` parameter to renew rather than create a duplicate subscription.
Side effects
- Payment not received or insufficient USDC — key not issued
- Invalid or expired existing key passed via `key` query param — may return error or create new key
- Network or worker error on the Cloudflare Workers backend — 500 response
- x402 payment protocol misconfiguration — payment accepted but key not returned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"key": "lb_0123456789abcdef0123456789abcdef01234567",
"next": "POST /api/watch with header x-api-key",
"plan": "pro",
"pro_until": 1794900000
}
}Tags
x402
Reviews
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