Best API Monitoring Tools in 2026
Updated
When an API is part of a product or integration, routine checks can help you spot availability or response problems. Compare check frequency, response assertions, and multi-region checks to see what each option specifies about monitoring coverage. Monitor limits, private locations, and incident workflows add detail on where checks can run and how teams can handle issues. Free plans and paid-from prices help you weigh cost. Site24x7 API Monitoring, APIContext, and Postman are among the named options to consider alongside Watchlog and Runscope. Use the criteria that matter to your endpoints and alert process to compare the available tools.
27ranked
20free plans on this page
$2/molowest paid tier
9 Oct 2026last checked
Input list API Monitoring Tools 25 channels on this page · 114 of 200 spec lines stated by the makers
Ch Tool Free planPaid fromCheck frequencyResponse assertionsMulti-region checksPrivate locationsMonitor limitIncident workflows Spec sheet Score
01 Site24x7 API Monitoring Free planYesPaid from$9/moCheck frequency1 minResponse assertionsYesMulti-region checksYesPrivate locationsYesMonitor limit25 monitorsIncident workflowsYes 8/8spec lines stated 8.1
02 APIContext Free planYesPaid from$29/moCheck frequency5 minResponse assertionsYesMulti-region checksYesPrivate locationsYesMonitor limit3 monitorsIncident workflowsYes 8/8spec lines stated 7.8
03 Postman Free planYesPaid from$9/moCheck frequencyResponse assertionsMulti-region checksPrivate locationsMonitor limitIncident workflows 2/8spec lines stated 7.7
04 Watchlog Free planYesPaid from$4.99/moCheck frequency1 minResponse assertionsYesMulti-region checksYesPrivate locationsMonitor limit50 monitorsIncident workflowsYes 7/8spec lines stated 7.6
05 Runscope Free planPaid from$79/moCheck frequency1 minResponse assertionsYesMulti-region checksYesPrivate locationsYesMonitor limitIncident workflowsYes 6/8spec lines stated 7.5
06 Dotcom-Monitor Free planYesPaid from$13.33/moCheck frequencyResponse assertionsMulti-region checksPrivate locationsMonitor limitIncident workflows 2/8spec lines stated 7.4
07 Loadster Synthetic Monitoring Free planNoPaid from$29/moCheck frequency1 minResponse assertionsYesMulti-region checksYesPrivate locationsYesMonitor limitIncident workflowsYes 7/8spec lines stated 7.4
08 Sentinel Free planYesPaid from$12/moCheck frequencyResponse assertionsYesMulti-region checksYesPrivate locationsMonitor limit25 monitorsIncident workflowsYes 6/8spec lines stated 7.4
09 Checkly Free planYesPaid from$24/moCheck frequencyResponse assertionsMulti-region checksPrivate locationsMonitor limitIncident workflows 2/8spec lines stated 7.3
10 HostTracker Free planYesPaid from$5/moCheck frequencyResponse assertionsMulti-region checksPrivate locationsMonitor limitIncident workflows 2/8spec lines stated 7.3
11 Sysmos Free planYesPaid from$29/moCheck frequencyResponse assertionsYesMulti-region checksYesPrivate locationsMonitor limit100 monitorsIncident workflowsYes 6/8spec lines stated 7.3
12 Tallwatch Free planYesPaid from$11.99/moCheck frequencyResponse assertionsMulti-region checksPrivate locationsMonitor limitIncident workflows 2/8spec lines stated 7.3
13 Uptrends Free planNoPaid from$42/moCheck frequencyResponse assertionsMulti-region checksPrivate locationsMonitor limitIncident workflows 2/8spec lines stated 7.3
14 Uptara Free planYesPaid from$15/moCheck frequencyResponse assertionsYesMulti-region checksYesPrivate locationsYesMonitor limit50 monitorsIncident workflowsYes 7/8spec lines stated 7.2
15 UptimeRobot Free planYesPaid from$12/moCheck frequencyResponse assertionsMulti-region checksPrivate locationsMonitor limitIncident workflows 2/8spec lines stated 7.2
16 Assertible Free planYesPaid from$25/moCheck frequencyResponse assertionsMulti-region checksPrivate locationsMonitor limitIncident workflows 2/8spec lines stated 7.1
17 CyberPing Free planYesPaid from$49/moCheck frequencyResponse assertionsYesMulti-region checksYesPrivate locationsMonitor limit25 monitorsIncident workflows 5/8spec lines stated 7.1
18 ObserveOne API Monitoring Free planYesPaid from$6/moCheck frequency1 minResponse assertionsYesMulti-region checksYesPrivate locationsYesMonitor limit25 monitorsIncident workflowsYes 8/8spec lines stated 6.9
19 Oh Dear Free planNoPaid fromCheck frequencyResponse assertionsMulti-region checksPrivate locationsMonitor limitIncident workflows 1/8spec lines stated 6.9
20 Sematext Synthetics Free planNoPaid from$2/moCheck frequency1 minResponse assertionsYesMulti-region checksYesPrivate locationsYesMonitor limitIncident workflowsYes 7/8spec lines stated 6.9
21 Signalog Free planYesPaid from$19/moCheck frequencyResponse assertionsYesMulti-region checksYesPrivate locationsMonitor limit25 monitorsIncident workflowsYes 6/8spec lines stated 6.8
22 Status Inspector Free planYesPaid fromCheck frequency1 minResponse assertionsYesMulti-region checksYesPrivate locationsMonitor limit200 monitorsIncident workflowsYes 6/8spec lines stated 6.7
23 PageLantern Free planYesPaid from$7/moCheck frequencyResponse assertionsMulti-region checksPrivate locationsMonitor limitIncident workflows 2/8spec lines stated 6.6
24 Apica Vanguard Free planPaid fromCheck frequency5 minResponse assertionsYesMulti-region checksYesPrivate locationsYesMonitor limitIncident workflowsYes 5/8spec lines stated 6.5
25 pingdan Free planYesPaid fromCheck frequencyResponse assertionsYesMulti-region checksPrivate locationsMonitor limitIncident workflowsYes 3/8spec lines stated 6.5
Compare all 25 in a table
| # | Tool | Score | Free plan | From | Free plan | Paid from | Check frequency | Response assertions |
|---|---|---|---|---|---|---|---|---|
| 1 | Site24x7 API Monitoring | 8.1 | Free plan | $109/mo | Yes | 9 /mo | 1 min | Yes |
| 2 | APIContext | 7.8 | Free plan | $29/mo | Yes | 29 /mo | 5 min | Yes |
| 3 | Postman | 7.7 | Free plan | $9/mo | Yes | 9 /mo | ||
| 4 | Watchlog | 7.6 | Free plan | $4.99/mo | Yes | 4.99 /mo | 1 min | Yes |
| 5 | Runscope | 7.5 | $79/mo | 79 /mo | 1 min | Yes | ||
| 6 | Dotcom-Monitor | 7.4 | Free plan | $13.33/mo | Yes | 13.33 /mo | ||
| 7 | Loadster Synthetic Monitoring | 7.4 | Free plan | $77/mo | No | 29 /mo | 1 min | Yes |
| 8 | Sentinel | 7.4 | Free plan | $14/mo | Yes | 12 /mo | Yes | |
| 9 | Checkly | 7.3 | Free plan | $24/mo | Yes | 24 /mo | ||
| 10 | HostTracker | 7.3 | Free plan | $4.08/mo | Yes | 5 /mo | ||
| 11 | Sysmos | 7.3 | Free plan | $29/mo | Yes | 29 /mo | Yes | |
| 12 | Tallwatch | 7.3 | Free plan | $11.99/mo | Yes | 11.99 /mo | ||
| 13 | Uptrends | 7.3 | No | $42/mo | No | 42 /mo | ||
| 14 | Uptara | 7.2 | Free plan | $15/mo | Yes | 15 /mo | Yes | |
| 15 | UptimeRobot | 7.2 | Free plan | $9/mo | Yes | 12 /mo | ||
| 16 | Assertible | 7.1 | Free plan | $25/mo | Yes | 25 /mo | ||
| 17 | CyberPing | 7.1 | Free plan | $49/mo | Yes | 49 /mo | Yes | |
| 18 | ObserveOne API Monitoring | 6.9 | Free plan | $6/mo | Yes | 6 /mo | 1 min | Yes |
| 19 | Oh Dear | 6.9 | No | €15/mo | No | |||
| 20 | Sematext Synthetics | 6.9 | No | $2/mo | No | 2 /mo | 1 min | Yes |
| 21 | Signalog | 6.8 | Free plan | $19/mo | Yes | 19 /mo | Yes | |
| 22 | Status Inspector | 6.7 | Free plan | €79/mo | Yes | 1 min | Yes | |
| 23 | PageLantern | 6.6 | Free plan | $97/mo | Yes | 7 /mo | ||
| 24 | Apica Vanguard | 6.5 | 5 min | Yes | ||||
| 25 | pingdan | 6.5 | Free plan | Free | Yes | Yes |
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