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ObserveOne API Monitoring

observeone.com

From $6/mo Free plan WebAPISelf-hostedBrowser extension
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Spec score 8.4 #10 of 27 in API Monitoring Tools

What it is

ObserveOne API Monitoring runs saved HTTP requests on demand or on schedules, checking responses against assertions for status codes, response times, JSON paths, headers, and body text. Checks support retries, configurable timeouts, and execution from selected regions. Authentication includes Bearer, Basic, API-key, and OAuth2 client-credentials methods using vault references. Each check has a write-only secrets vault; stored secrets use authenticated AES-256-GCM encryption while results remain readable. Alerts can go to email, Slack, Discord, Microsoft Teams, Telegram, SMS, or webhooks. Access is available through a web dashboard, `obs` CLI, MCP server, and REST API. GitHub integration can trigger runs on pushes and post pull-request statuses and comments; a Netlify extension runs selected suites after successful deployments. The open-source oo-workers engine supports Docker Compose self-hosting and includes API checks plus browser, protocol, database, TLS, and heartbeat checks. The free plan is free, with one saved check and a two-hour minimum URL-monitor interval. Starter costs $6 a month billed annually; other listed plans are 24.00, $85 a month billed annually.

Spec sheet

Audience
ObserveOne describes itself as agentic QA and synthetic monitoring for engineering teams.Read 30 Sep 2026 · observeone.com
Support
The About page directs users to support at [email protected].Read 30 Sep 2026 · observeone.com
Alert channels
Alert destinations include email, Slack, Discord, Microsoft Teams, Telegram, SMS, and webhooks.Read 30 Sep 2026 · observeone.com
API checks
An API check is a saved HTTP request with assertions that ObserveOne runs on demand or on a schedule.Read 30 Sep 2026 · observeone.com
Assertions
API checks can assert status code, response time, JSON path values, headers, and response-body substrings.Read 30 Sep 2026 · observeone.com
Authentication
API checks support Bearer, Basic, API-key, and OAuth2 client-credentials authentication using vault references.Read 30 Sep 2026 · observeone.com
Automation interfaces
The product provides a web dashboard, an obs CLI, an MCP server, and a REST API.Read 30 Sep 2026 · observeone.com
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.Read 30 Sep 2026 · observeone.com
Encryption
ObserveOne encrypts stored monitoring secrets with authenticated AES-256-GCM while check results remain readable.Read 30 Sep 2026 · observeone.com
Free frequency limit
The Free plan has a two-hour minimum check interval for URL monitors.Read 30 Sep 2026 · observeone.com
Netlify integration
The Netlify extension runs selected Autopilot suites automatically on successful deploys and supports production, deploy-preview, and branch-deploy contexts.Read 30 Sep 2026 · observeone.com
Public reachability limit
Cloud TCP, UDP, and database checks require targets to be reachable on the public internet.Read 30 Sep 2026 · observeone.com
Retries and regions
Checks support scheduled retries and execution from multiple selected regions with configurable request timeouts.Read 30 Sep 2026 · observeone.com
Secrets vault
The per-check secrets vault is write-only, and secret values do not appear in saved checks, send-now output, or exports.Read 30 Sep 2026 · observeone.com
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.Read 30 Sep 2026 · observeone.com

Plans and prices

Free Free 10 AI verifications/month · 1 saved check · 1 user · 30-day history · 10 monitors every 2h · PASS/FAIL verdict + video Read 30 Sep 2026 · observeone.com
Starter $6 a month annually 25 AI verifications/month · 3 saved checks · 1 user · 90-day history · 25 monitors every 5m · Email + Slack alerts Read 30 Sep 2026 · observeone.com
Essential $24 a month annually 80 AI verifications/month · 15 saved checks · 1 user · 90-day history · 50 monitors every 60s · PR-preview verification · Email + Slack alerts Read 30 Sep 2026 · observeone.com
Small Team $85 a month annually 200 AI verifications/month · 100 saved checks · 10 users · 180-day history · 500 monitors every 30s · PR-preview verification · Multi-channel alerts Read 30 Sep 2026 · observeone.com

Every ObserveOne API Monitoring plan and price →

Strong points and limits

Strong points

  • Detailed response assertions
  • Multiple authentication methods
  • Many alert destinations
  • GitHub and Netlify integrations
  • Self-hosted engine available

Limits

  • Free URL checks limited to two-hour intervals
  • Cloud database checks need public reachability
  • Paid plans billed annually

Who it suits

ObserveOne suits engineering teams needing synthetic API checks, assertions, alert routing, and CI integrations. Self-hosting is available for teams that can run Docker Compose.

Verdict

ObserveOne combines scheduled API assertions with broad alerting, automation interfaces, and deployment integrations. Its free tier is constrained, while paid plans add higher monitor frequencies and capacity.

Where Specifiction places it

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