ObserveOne API Monitoring runs saved HTTP requests on demand or on a schedule and checks responses against defined assertions. Checks can validate status codes, response times, JSON path values, headers, and response-body text, with scheduled retries, configurable timeouts, and execution from selected regions. Authentication options include Bearer, Basic, API-key, and OAuth2 client credentials through vault references. Each check has a write-only secrets vault; stored monitoring secrets use authenticated AES-256-GCM encryption, while results remain readable. Alerts can go to email, Slack, Discord, Microsoft Teams, Telegram, SMS, or webhooks. Users can work through a web dashboard, CLI, MCP server, or REST API. GitHub integration can trigger Autopilot runs on pushes and post status checks and pull-request comments; the Netlify extension runs selected suites after successful deployments. An open-source engine can be self-hosted with Docker Compose. The Free plan is free, with one saved check and a two-hour minimum URL-monitor interval. Starter is $6.00 USD per month, billed annually. Cloud TCP, UDP, and database checks require publicly reachable targets.
Who it is for
ObserveOne API Monitoring suits engineering teams that need scheduled or on-demand API checks, response assertions, and alert routing. Its GitHub, Netlify, and self-hosted options may fit teams incorporating checks into deployment or infrastructure workflows.
What is good
- Checks assert status, response time, headers, and JSON values.
- Supports multiple authentication methods through vault references.
- Offers multi-region checks and scheduled retries.
- Alerts can route to email, chat, SMS, or webhooks.
- Provides GitHub and Netlify integrations.
What to know first
- Free URL monitors have a two-hour minimum interval.
- Cloud TCP, UDP, and database checks require public reachability.
- Starter costs $6.00 USD per month, billed annually.
Verdict
ObserveOne combines API assertions with integrations, alerting, and a self-hosted engine. Check frequency and target reachability are important constraints, while paid access starts at $6.00 USD per month billed annually.
ObserveOne API Monitoring plans and pricing
All plansCompared on API monitoring tools
- Free plan
- Yes
- Paid from
- $6/mo
- Check frequency
- 1 min
- Response assertions
- Yes
- Multi-region checks
- Yes
- Private locations
- Yes
- Monitor limit
- 25 monitors
- Incident workflows
- Yes
