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Ledgerbell Pro API Key Provisioning
x402
Ledgerbell Pro API Key Provisioning is a paid API for AI agents from ledgerbell.quietworklabs.workers.dev, paid per call via x402, $1/call, status unknown (last checked 2026-10-18).
Issues or renews a Ledgerbell Pro API key (lb_ key) that unlocks paid onchain alert subscriptions for wallets, Safe multisigs, and contracts across EVM chains.
Price / call$1
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 the lb_ API key string, a hint for the next API call (POST /api/watch with x-api-key header), the plan name ('pro'), and a Unix timestamp (pro_until) indicating when the Pro subscription expires.
Example use cases
Bootstrap Safe multisig alert pipeline
“I need a fresh Ledgerbell Pro API key so I can start watching my Safe multisig on Base for owner changes and queued transactions — send me the key so I can configure my Discord webhook next.”
Renew lapsed pro monitoring subscription
“I already have a Ledgerbell key — lb_abc123 — can you extend my Pro plan so my Arbitrum contract upgrade alerts don't expire?”
Activate wallet approval alerts for DeFi team
“We want to get a Ledgerbell Pro key for our team so we can watch for any token approvals coming from our treasury wallet on Optimism and pipe them into our Slack channel.”
Technical details
Endpoint
GEThttps://ledgerbell.quietworklabs.workers.dev/x402/pro-6d?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to obtain or extend a Ledgerbell Pro API key to enable paid-tier onchain monitoring features. It is the required first step before calling /api/watch to register specific wallet, Safe, or contract alert subscriptions. Choose this over the free tier when you need higher alert volume or advanced event types.
Side effects
- Payment not received or x402 flow incomplete — key not issued
- Supplied existing lb_ key not recognized — error or new key issued instead
- Downstream worker timeout — no response
- Rate limiting or quota exceeded on free tier
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
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