It suits IT and DevOps teams that need to monitor API performance, validate REST responses, or follow multi-step transactions.
Free plan Free trial From $109 a month, billed yearly AndroidiPhone & iPadWebWindowsMacLinux+1
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Best API Monitoring Tools 2026
API monitoring helps you check availability and response behavior over time. Compare check frequency and response assertions alongside monitor limits and multi-region checks to understand the coverage described for each tool. Private locations and incident workflows add context about where checks can run and how incidents are handled; free-plan availability and paid-from pricing are also useful points to weigh. UptimeRobot, Site24x7 API Monitoring and Dotcom-Monitor are among the options shown. Consider your monitoring locations, alert-handling needs and the limits that matter for your APIs.
02
Dotcom-Monitor
It suits people who need to monitor websites or infrastructure and receive alerts through a range of channels.
AndroidiPhone & iPadWeb+4 Record6.4 Visit
03
Loadster Synthetic Monitoring
Loadster suits teams that need scheduled checks for websites, web apps, or APIs, including multi-step user journeys.
WebWindowsMac+4 Record6.0 Visit
04
APIContext
It may suit teams monitoring APIs, web journeys, AI workflows, or third-party services, especially those checking conformance or security behavior.
WebWindowsMac+1 Record5.8 Visit
05
Postman
Postman suits developers and teams that need API design, testing, documentation, or monitoring tools.
WebWindowsMac+2 Record5.8 Visit
7
Watchlog
WebWindowsLinux+2 $299 a month Record5.8 Visit Watchlog may suit teams that need infrastructure and application monitoring with logs, traces, API checks, and alert routing in one platform.
8
Sentinel
WebMacBrowser extension+1 $14 a month Record5.7 Visit Sentinel suits digital agencies, freelance developers and designers, and SaaS teams managing one or more sites.
9
UptimeRobot
AndroidiPhone & iPad $9 a month, billed yearly Record5.6 Visit UptimeRobot suits people and teams monitoring websites, servers, and other services.
11
HostTracker
WebAPI $49 a year Record5.4 Visit HostTracker is intended for web agencies, hosting resellers and webmasters responsible for multiple domains.
12
Uptrends
AndroidiPhone & iPadWeb+3 $42 a month, billed yearly Record5.3 Visit Core is described for teams needing regional availability and performance monitoring; Pro targets SRE and Ops teams.
13
Assertible
WebAPI $25 a month Record5.2 Visit Assertible is aimed at QA professionals, developers and others responsible for operating a web service.
14
Checkly
WebLinuxAPI $24 a month Record5.2 Visit Checkly is intended for developers, SRE and platform teams, QA engineers, and engineering managers who need API and interface monitoring.
15
ObserveOne API Monitoring
WebBrowser extensionAPI+1 $6 a month, billed yearly Record5.2 Visit It suits engineering teams looking to monitor APIs and run synthetic checks across selected regions.
16
Sysmos
WebLinuxAPI $29 a month Record5.1 Visit Sysmos is designed for small teams, with the Free plan presented for solo developers and personal projects.
18
Signalog
WebAPI $19 a month Record5.0 Visit Signalog suits teams that want monitoring, incident response, paging, and public status communication together.
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