API & Microservices Monitoring
Uptime Monitoring Down to the Second
Ship APIs with confidence. Pulsely lets developers monitor staging environments, validate public endpoints, and catch regressions before they hit production — integrated directly into your CI/CD pipeline.
The Problem
Your staging environment is a black box until it's too late
When your team deploys a new version of the billing service to staging, nobody sets up a dedicated monitor. The endpoint works in Postman at 3 PM. By 11 AM the next morning, the database migration has locked the connection pool, and the API returns 503 for every request. The bug sits there for 14 hours before a QA engineer notices — and by then, the on-call rotation has already changed.
This is the reality for most engineering teams. Staging environments drift from production. Microservice dependencies break silently. Health-check endpoints return 200 even when the underlying integration with Stripe or Twilio is failing. You're running integration tests in CI, but those tests don't run continuously. You're trusting that "it worked locally" is enough.
The Solution
Continuous endpoint monitoring that fits your development workflow
Pulsely is built for developers who need to know the state of every API endpoint — not just whether a server is up, but whether the endpoint responds with the expected status code, payload structure, and latency. You define monitors for staging, pre-production, and production side by side, and Pulsely hits them from eight global locations every 30 seconds to 5 minutes.
When a monitor detects a deviation — a 500 error where a 200 is expected, a response time that spikes above your 800 ms threshold, or a JSON field that's missing — you get an alert within seconds via Slack, PagerDuty, or email. Every check is logged with the full request and response, so you can replay the exact conditions that caused a failure. No guessing. No log-diving through three different services.
And because Pulsely integrates with GitHub Actions, you can spin up monitors automatically when a PR targets your staging branch, then tear them down when the PR is merged. Your staging environment gets monitored only when it matters, and you never pay for idle checks.
Features
Everything you need to monitor APIs and microservices
From simple uptime pings to deep assertion-based checks, Pulsely gives you the observability layer your services deserve.
Assertion-Based Monitoring
Define expected status codes, response time thresholds, and JSON schema assertions. If /api/v2/invoices returns a 200 but the total field is missing, Pulsely flags it as a failure — not a false positive.
GitHub Actions Integration
Use the pulsely/monitor-action GitHub Action to create monitors on PR open, update them on push, and destroy them on merge. Your staging branch gets monitored automatically for the exact lifetime of the feature branch.
Multi-Environment Dashboards
Track staging, pre-prod, and production endpoints on a single dashboard. Color-coded status indicators, per-environment uptime percentages, and side-by-side latency comparisons so you can see drift before it becomes an incident.
Global Check Locations
Monitors run from eight locations: Ashburn (US East), San Jose (US West), Frankfurt, London, Singapore, Mumbai, São Paulo, and Sydney. Detect region-specific DNS issues, CDN cache failures, or latency spikes before your users do.
Full Request/Response Logging
Every check stores the complete HTTP request and response — headers, body, timing breakdown (DNS, TCP, TLS, TTFB). When something breaks, you have the exact snapshot to share with your team or the vendor.
Slack, PagerDuty & Webhook Alerts
Route alerts to Slack channels per service, escalate to PagerDuty after two consecutive failures, or pipe them into your own incident system via webhooks. Configure escalation policies and quiet hours per monitor.
Get Started
Start monitoring your APIs in under two minutes
No infrastructure to deploy. No agent to install. Add an endpoint, configure your assertions, and let Pulsely handle the rest. Your first 20 monitors are free forever.
API & Microservices Monitoring
Uptime Monitoring Down to the Second
Ship APIs with confidence. Pulsely lets developers monitor staging environments, validate public endpoints, and catch regressions before they hit production — integrated directly into your CI/CD pipeline.
The Problem
Your staging environment is a black box until it's too late
When your team deploys a new version of the billing service to staging, nobody sets up a dedicated monitor. The endpoint works in Postman at 3 PM. By 11 AM the next morning, the database migration has locked the connection pool, and the API returns 503 for every request. The bug sits there for 14 hours before a QA engineer notices — and by then, the on-call rotation has already changed.
This is the reality for most engineering teams. Staging environments drift from production. Microservice dependencies break silently. Health-check endpoints return 200 even when the underlying integration with Stripe or Twilio is failing. You're running integration tests in CI, but those tests don't run continuously. You're trusting that "it worked locally" is enough.
The Solution
Continuous endpoint monitoring that fits your development workflow
Pulsely is built for developers who need to know the state of every API endpoint — not just whether a server is up, but whether the endpoint responds with the expected status code, payload structure, and latency. You define monitors for staging, pre-production, and production side by side, and Pulsely hits them from eight global locations every 30 seconds to 5 minutes.
When a monitor detects a deviation — a 500 error where a 200 is expected, a response time that spikes above your 800 ms threshold, or a JSON field that's missing — you get an alert within seconds via Slack, PagerDuty, or email. Every check is logged with the full request and response, so you can replay the exact conditions that caused a failure. No guessing. No log-diving through three different services.
And because Pulsely integrates with GitHub Actions, you can spin up monitors automatically when a PR targets your staging branch, then tear them down when the PR is merged. Your staging environment gets monitored only when it matters, and you never pay for idle checks.
Features
Everything you need to monitor APIs and microservices
From simple uptime pings to deep assertion-based checks, Pulsely gives you the observability layer your services deserve.
Assertion-Based Monitoring
Define expected status codes, response time thresholds, and JSON schema assertions. If /api/v2/invoices returns a 200 but the total field is missing, Pulsely flags it as a failure — not a false positive.
GitHub Actions Integration
Use the pulsely/monitor-action GitHub Action to create monitors on PR open, update them on push, and destroy them on merge. Your staging branch gets monitored automatically for the exact lifetime of the feature branch.
Multi-Environment Dashboards
Track staging, pre-prod, and production endpoints on a single dashboard. Color-coded status indicators, per-environment uptime percentages, and side-by-side latency comparisons so you can see drift before it becomes an incident.
Global Check Locations
Monitors run from eight locations: Ashburn (US East), San Jose (US West), Frankfurt, London, Singapore, Mumbai, São Paulo, and Sydney. Detect region-specific DNS issues, CDN cache failures, or latency spikes before your users do.
Full Request/Response Logging
Every check stores the complete HTTP request and response — headers, body, timing breakdown (DNS, TCP, TLS, TTFB). When something breaks, you have the exact snapshot to share with your team or the vendor.
Slack, PagerDuty & Webhook Alerts
Route alerts to Slack channels per service, escalate to PagerDuty after two consecutive failures, or pipe them into your own incident system via webhooks. Configure escalation policies and quiet hours per monitor.
Get Started
Start monitoring your APIs in under two minutes
No infrastructure to deploy. No agent to install. Add an endpoint, configure your assertions, and let Pulsely handle the rest. Your first 20 monitors are free forever.