Posthook

Webhook scheduler for reminders, follow-ups, and expirations

Posthook is a webhook scheduling API. Developers schedule one-time or recurring HTTP deliveries with a single API call using UTC timestamps, relative delays, or timezone-aware scheduling with DST handling. Deliveries are signed (HMAC-SHA256), retried with fixed or exponential backoff, and monitored via a dashboard with per-endpoint anomaly alerting, bulk retry/replay, and 7-90 day log retention. Includes SDKs for TypeScript, Python, and Go, a CLI for local development, and config-as-code for recurring sequences via posthook.toml. In production since 2018 with a reported 99.98% uptime.

Category: APIs & backend
Pricing: freemium · from $0
Free tier: yes
API: yes
MCP server: no
SDK: yes
Open source: no

#webhooks #scheduling #cron-alternative #retries #api #serverless

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Listed 2026-10-20 · last verified 2026-10-20 · extracted by @cf/zai-org/glm-5.3-flash · confidence 0.95

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API

curl https://toolgrep.com/api/products/posthook