Monitor External APIs With Built-In
Service Correlation
Automatically detect external API calls using OpenTelemetry semantic conventions.
Click any metric to view the service making the call or the underlying trace.
View all external API domains
View all external domains with endpoints in use, last accessed time, operations per second, error percentage, and average latency.
Drill into domains to see endpoints and their performance
Click any domain to see all endpoints with call counts, latency, last used time, and error percentage. View performance visualizations including call response status, status code breakdown, rate over time, and latency trends.
All Endpoints
View every endpoint with call counts, latency, and error rates.
Endpoint Stats
View performance charts and dependent services.
Filter by environment, service or method
Use the left panel to filter domains by Deployment Environment, Service Name, or RPC Method. When viewing endpoints for a domain, search for specific endpoints or filter by suggested attributes like deployment environment, host, status code, and more.
Automatic detection of external calls
External API calls are automatically identified using OpenTelemetry's span.kind attribute to detect client spans. API details like domain, endpoint, and URL are extracted from semantic convention attributes (net.peer.name, http.url, http.target).
See which services call your API and jump to traces
View call counts, latency, error rates, and request rates for each service calling an external API. Click any service name to open its dashboard in a new tab. Click any chart to view traces. Correlation is automatic via shared client spans.
Ready to Monitor Your
External APIs?
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SigNoz
Cloud
Fully managed, SOC 2-compliant, ideal for teams who want to start quickly without managing infrastructure.
Self-Host
For tighter security & data residency requirements. It is Apache 2.0 open source, built on open standards.
10 million+
OSS Downloads
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GitHub Stars
Every single time we have an issue, SigNoz is always the first place to check. It was super straightforward to migrate - just updating the exporter configuration, basically three lines of code.Karl Lyons Senior SRE, Shaped
Charlie Shen
Lead DevOps Engineer, Brainfish
I've studied more than 10 observability tools in the market. We eventually landed on SigNoz, which says a lot. Compared to Elastic Cloud, it's a breeze with SigNoz.
Niranjan Ravichandra
Co-founder & CTO, Cedana
Getting started with SigNoz was incredibly easy. We were able to set up the OpenTelemetry collector quickly and start monitoring our systems almost immediately.
Poonkuyilan V
IT Infrastructure Lead, The Hindu
Recently, we configured alerts for pod restarts and were able to quickly identify and resolve the root cause before it escalated. Additionally, SigNoz's tracing capabilities helped us spot unwanted calls to third-party systems, allowing us to optimize our applications.
Avneesh Kumar
VP of Engineering, Mailmodo
We have started saving almost six hours on a daily basis, which we can now invest in other tech debts and backlogs. The best thing about SigNoz is that it's open source. I can go into the source code and look at what's happening. That's a great confidence booster for long-term usage.
Khushhal Reddy
Senior Backend Engineer, Kiwi
SigNoz is something we use daily. If I have ten tabs open, six of them are SigNoz. We used traces and it helped us take 30 seconds down to 3 seconds.
