{"uid":"cap_9YoqTOkQFC1rg8FiZqGny","slug":"ledgerbell-pro-30-day-api-key-b224f991","name":"Ledgerbell Pro 30-Day API Key","description":"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.","url":"https://ledgerbell.quietworklabs.workers.dev/x402/pro-30d?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{"key":{"type":"string","description":"Optional existing lb_ key to extend; omit to get a new key"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"key":"lb_0123456789abcdef0123456789abcdef01234567","next":"POST /api/watch with header x-api-key","plan":"pro","pro_until":1794900000}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"5","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$5/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"5","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"5","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_F2QJrobg49BZR0p5dBJ57","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"5","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"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.","exampleAgentPrompt":"Get me a new Ledgerbell Pro API key so I can set up Discord alerts whenever my wallet approves a token or my Safe multisig queues a transaction on Ethereum and Base.","exampleUseCases":[{"title":"Safe multisig security monitoring","prompt":"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."},{"title":"Token approval watchdog for DeFi wallet","prompt":"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."},{"title":"Extend existing Ledgerbell subscription","prompt":"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."}],"resultDescription":"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.","failureModes":["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"],"whenToPreferThis":"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.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-18T12:30:06.646Z","isFirstParty":false,"canonicalSlug":"ledgerbell-pro-30-day-api-key-b224f991"}