Developers rent API docs, monitoring, secrets and webhook plumbing by the month for side projects that earn nothing yet. Self-hosted pay-once utilities cost less than one month of the SaaS they replace.
The tool this job usually means renting is Papertrail, at $7/mo โ roughly $84 a year, every year. Logbin does the job for a one-time $34 โ running on infrastructure you control.