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SendItWhenever
Precision webhook scheduler for indie hackers — $15 founding
Lambda can't hold long delays; a broker is overkill for one HTTP call. SendItWhenever fires a signed webhook at the exact second you schedule it — with Early Firing to offset round-trip latency. · Three lines of SDK (Node or Python) · HMAC-signed delivery + Encryption at Rest + SSRF protection · Retries, dead-letter queue, searchable delivery log · Free to start — Indie plan at $15/mo founding price (first 50; $19 after)
I built SendItWhenever because every time I needed to fire a webhook later — a trial expiry, a deferred charge, a follow-up ping — my options were bad: serverless functions time out long before the delay, and standing up a real message broker is a weekend of IAM and YAML for one HTTP call.
So this is the small, dependable thing I wanted: schedule({ url, fireAt, payload }) and it fires on time, HMAC-signed, with automatic retries and a searchable delivery log.
A few things worth knowing:
→ The live demo on the landing page (/#try) fires a real signed webhook — you can watch the scheduled → fired → delivered timeline and inspect the actual X-SendIt-Signature header. No signup.
→ Precision is second-level with Early Firing (best-effort RTT offset) — I'm honest about that at /status where you can see the real on-time numbers.
→ Node and Python SDKs are both published. What language should be next?
Launch pricing: 1 month free, then $15/mo locked for life — for the first 50 founders. After that it's $19/mo. No per-request billing ever.
Happy to dig into any of the architecture (Redis/BullMQ fire path, fire-time SSRF re-resolution, AES-256-GCM payload encryption). Thanks for taking a look 🙏
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About SendItWhenever on Product Hunt
“Precision webhook scheduler for indie hackers — $15 founding”
SendItWhenever was submitted on Product Hunt and earned 5 upvotes and 1 comments, placing #112 on the daily leaderboard. Lambda can't hold long delays; a broker is overkill for one HTTP call. SendItWhenever fires a signed webhook at the exact second you schedule it — with Early Firing to offset round-trip latency. · Three lines of SDK (Node or Python) · HMAC-signed delivery + Encryption at Rest + SSRF protection · Retries, dead-letter queue, searchable delivery log · Free to start — Indie plan at $15/mo founding price (first 50; $19 after)
SendItWhenever was featured in API (98.4k followers), SaaS (43k followers) and Developer Tools (515.4k followers) on Product Hunt. Together, these topics include over 134.8k products, making this a competitive space to launch in.
Who hunted SendItWhenever?
SendItWhenever was hunted by DOKYOUNG KIM. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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DOKYOUNG KIM
Hey Product Hunt 👋
I built SendItWhenever because every time I needed to fire a webhook later — a trial expiry, a deferred charge, a follow-up ping — my options were bad: serverless functions time out long before the delay, and standing up a real message broker is a weekend of IAM and YAML for one HTTP call.
So this is the small, dependable thing I wanted: schedule({ url, fireAt, payload }) and it fires on time, HMAC-signed, with automatic retries and a searchable delivery log.
A few things worth knowing:
→ The live demo on the landing page (/#try) fires a real signed webhook — you can watch the scheduled → fired → delivered timeline and inspect the actual X-SendIt-Signature header. No signup.
→ Precision is second-level with Early Firing (best-effort RTT offset) — I'm honest about that at /status where you can see the real on-time numbers.
→ Node and Python SDKs are both published. What language should be next?
Launch pricing: 1 month free, then $15/mo locked for life — for the first 50 founders. After that it's $19/mo. No per-request billing ever.
Happy to dig into any of the architecture (Redis/BullMQ fire path, fire-time SSRF re-resolution, AES-256-GCM payload encryption). Thanks for taking a look 🙏