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ObserveOne API Monitoring
What it is
ObserveOne API Monitoring runs saved HTTP requests on demand or on a schedule and checks their results against assertions. A check can validate status codes, response times, JSON path values, headers and text in a response body. Checks can retry on a schedule, use configurable timeouts and run from selected regions. Authentication options include Bearer, Basic, API-key and OAuth2 client-credentials methods using vault references. The per-check secrets vault is write-only, and stored monitoring secrets are encrypted with authenticated AES-256-GCM; results remain readable. Alerts can go to email, Slack, Discord, Microsoft Teams, Telegram, SMS or webhooks. Users can manage the service through its web dashboard, CLI, MCP server or REST API. GitHub can trigger runs on pushes and post pull-request statuses and comments; the Netlify extension runs selected suites after successful deploys. An open-source engine supports self-hosting with Docker Compose. A free plan is available; paid plans start at $6/mo (annual).
For and against
For
- Checks assert status, timing, JSON paths, headers and body text.
- Authentication supports Bearer, Basic, API-key and OAuth2.
- Alerts include email, Slack, SMS and webhooks.
- GitHub and Netlify can trigger automated runs.
Against
- Free URL monitors have a two-hour minimum interval.
- Cloud TCP, UDP and database targets must be publicly reachable.
- Starter costs $6 a month, billed annually.
The verdict
ObserveOne combines API assertions, alerting and automation interfaces with options for self-hosting. The free plan has a two-hour minimum interval for URL monitors, while paid plans begin at $6/mo (annual).
Who it suits
It suits engineering teams looking to monitor APIs and run synthetic checks across selected regions. Teams should note that the Free plan checks URL monitors no more often than every two hours.
Plans and prices
Free
10 AI verifications/month · 1 saved check · 1 user · 30-day history
Read 30 Sep 2026 · observeone.com
Starter
25 AI verifications/month · 3 saved checks · 1 user · 90-day history
Read 30 Sep 2026 · observeone.com
Essential
80 AI verifications/month · 15 saved checks · 1 user · 90-day history
Read 30 Sep 2026 · observeone.com
Small Team
200 AI verifications/month · 100 saved checks · 10 users · 180-day history
Read 30 Sep 2026 · observeone.com
On the record
- Alert channels
- Alert destinations include email, Slack, Discord, Microsoft Teams, Telegram, SMS, and webhooks.observeone.com · read 30 Sep 2026
- API checks
- An API check is a saved HTTP request with assertions that ObserveOne runs on demand or on a schedule.observeone.com · read 30 Sep 2026
- Assertions
- API checks can assert status code, response time, JSON path values, headers, and response-body substrings.observeone.com · read 30 Sep 2026
- Audience
- ObserveOne describes itself as agentic QA and synthetic monitoring for engineering teams.observeone.com · read 30 Sep 2026
- Authentication
- API checks support Bearer, Basic, API-key, and OAuth2 client-credentials authentication using vault references.observeone.com · read 30 Sep 2026
- Automation interfaces
- The product provides a web dashboard, an obs CLI, an MCP server, and a REST API.observeone.com · read 30 Sep 2026
- CI integration
- The GitHub App can trigger Autopilot runs on pushes and post status checks and comments on pull requests, with generic webhooks also supported.observeone.com · read 30 Sep 2026
- Encryption
- ObserveOne encrypts stored monitoring secrets with authenticated AES-256-GCM while check results remain readable.observeone.com · read 30 Sep 2026
- Free frequency limit
- The Free plan has a two-hour minimum check interval for URL monitors.observeone.com · read 30 Sep 2026
- Netlify integration
- The Netlify extension runs selected Autopilot suites automatically on successful deploys and supports production, deploy-preview, and branch-deploy contexts.observeone.com · read 30 Sep 2026
- Public reachability limit
- Cloud TCP, UDP, and database checks require targets to be reachable on the public internet.observeone.com · read 30 Sep 2026
- Retries and regions
- Checks support scheduled retries and execution from multiple selected regions with configurable request timeouts.observeone.com · read 30 Sep 2026
- Secrets vault
- The per-check secrets vault is write-only, and secret values do not appear in saved checks, send-now output, or exports.observeone.com · read 30 Sep 2026
- Self-hosting
- The open-source oo-workers engine runs with Docker Compose on your own infrastructure and includes API checks, browser tests, protocol probes, databases, TLS checks, and heartbeats.observeone.com · read 30 Sep 2026
- Support
- The About page directs users to support at [email protected].observeone.com · read 30 Sep 2026
