an API monitoring service

Interest over time From data

Hacker News stories mentioning monitoring synthetic observability (topic read as “API monitoring”), by year — 4 in total, currently rising.

1. 1 2021
2. 0 2022
3. 2 2023
4. 0 2024
5. 1 2025
6. 0 2026

This counts discussion on Hacker News, not global search demand. For developer tooling the two move together; for a local service business they do not.

Who is already building this From data

• openstatusHQ/openstatus is a live competitor with 8,932 stars and a last push on 2026-08-01; it positions itself as status pages plus uptime monitoring and API monitoring as code.

  • github openstatusHQ/openstatus 2023-06-19

• openstatusHQ/openstatus is the biggest named open-source project in this set, with 8,932 stars and active maintenance.

  • github openstatusHQ/openstatus 2023-06-19

• microsoft/Detours has 6,339 stars and was pushed on 2026-07-31; it is for monitoring and instrumenting API calls on Windows.

  • github microsoft/Detours 2016-10-19

• router-for-me/Cli-Proxy-API-Management-Center has 3,789 stars, was pushed on 2026-08-01, and focuses on configuration changes and runtime status monitoring for CLI-Proxy-API.

  • github router-for-me/Cli-Proxy-API-Management-Center 2025-09-06

• Findomain/Findomain has 3,782 stars and was pushed on 2026-07-28; it includes subdomain monitoring, HTTP checks, alerts, and API keys for sources.

  • github Findomain/Findomain 2019-04-14

• Apitally is a real usage signal too: its npm package has 11,347 downloads last month, and the project describes itself as simple API monitoring and analytics for REST APIs.

  • registries npm: apitally 2026-05-29

• checkcle has 2,803 stars and a last push on 2026-07-17; it is an active self-hosted monitoring platform with uptime monitoring, distributed checks, incident tracking, and alerts.

  • github operacle/checkcle 2025-05-09

• Metlo has 1,782 stars and a last push on 2025-07-25; it is an open-source API security platform, so adjacent but not the same as pure monitoring.

  • github metlo-labs/metlo 2022-07-26

• BricksLLM has 1,220 stars and a last push on 2025-01-05; it adds cost and rate limiting per API key with monitoring for LLM APIs.

  • github bricks-cloud/BricksLLM 2023-07-18

• Statusok has 1,642 stars but its last push was 2021-08-11, so it looks stale rather than actively maintained.

  • github sanathp/statusok 2015-08-26

What people actually say From data

• "I need to keep track of updates to the changelog, I can't be constantly manually monitoring" — a Discourse user on OpenAI API changelog tracking.

  • discourse Monitoring OpenAI API changelog 2023-12-05

• "The `https://api.anthropic.com/api/oauth/usage` endpoint returns `rate_limit_error` (HTTP 429) so aggressively that it makes it effectively impossible to poll usage data" — a GitHub issue about usage monitoring being blocked by rate limits.

  • githubissues [BUG] /api/oauth/usage endpoint aggressively rate limits, making usage monitoring unusable 2026-03-06

• "I built an internal monitoring tool that connects to my AI app, and alerts me when I'm about to hit rate limits" — a Discourse post about rate-limit monitoring for AI APIs.

  • discourse Rate limit monitoring for AI APIs 2026-04-05

• "After deploying a DeepSeek-based code review agent, I got a $3,247 bill at month-end with no idea which agent or customer caused the spike" — a GitHub issue describing cost attribution pain.

  • githubissues Community Case: Monitoring DeepSeek API Costs Per Agent with One-Line SDK 2026-06-11

• "Existing solutions felt overpriced and overcomplicated for my small-scale needs" — a Hacker News post from someone building API monitoring for solopreneurs and indie hackers.

  • hackernews Show HN: API monitoring for solopreneurs and indie hackers 2024-09-10

• "OpenAI's billing page shows total spend. It doesn't show which feature, which tenant, or which conversation caused it" — a Dev.to post about monitoring gaps in API spend attribution.

  • devto OpenAI Tells You What You Spent. Not Where. So I Built a Dashboard. 2026-04-30

People asking to be sold to From data

• "I need to keep track of updates to the changelog, I can't be constantly manually monitoring" shows a direct willingness to use tooling for API changelog tracking.

  • discourse Monitoring OpenAI API changelog 2023-12-05

• "I built an internal monitoring tool that connects to my AI app" shows someone already building internally because the need is real enough to solve in-house.

  • discourse Rate limit monitoring for AI APIs 2026-04-05

• "it makes it effectively impossible to poll usage data" shows an immediate need for an alternative way to monitor usage and limits.

  • githubissues [BUG] /api/oauth/usage endpoint aggressively rate limits, making usage monitoring unusable 2026-03-06

• "I got a $3,247 bill at month-end with no idea which agent or customer caused the spike" is a strong pain signal for paid cost-monitoring and attribution.

  • githubissues Community Case: Monitoring DeepSeek API Costs Per Agent with One-Line SDK 2026-06-11

• "it seems that other people find it useful too, enough even to pay money for it!" is a first-person buying signal from a founder already selling API monitoring.

  • hackernews Show HN: Apitally – REST API monitoring made easy 2024-02-27

Competitor strength From data

Counted, not judged. Only projects that expose a hard number — stars, downloads, last commit — appear here, so they stop looking identical to each other. Products with no public metrics are discussed above instead of being given a row they cannot fill.

• 12 open source
• 7 active
• 5 dead
• 37 first-hand complaints
• 3 stated wants
• 6 communities discussing it

Domain names From data

Checked live against the registry, built from the subject of the idea rather than the first words of the sentence. A literal check is a fact; a brandable suggestion would be noise.

• apimonitoring.com taken
• apimonitoring.io available
• api.com taken
• getapi.com taken