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  • API Monitoring
  • REST · SOAP · GraphQL · Postman

API Monitoring Software That Catches Failing APIs Before They Break Your Product

Dotcom-Monitor is API monitoring software that runs synthetic checks against every API your team depends on — REST, SOAP, GraphQL, Postman, and Insomnia collections — from 30+ global locations. Chains multi-step workflows, validates every payload, and pages the right people the moment something breaks.
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A flat-vector wireframe globe on a deep navy background with six monitoring checkpoint nodes orbiting it — five healthy green, one orange featured — connected by dashed threads, with a central "Monitoring active" status pill showing 37 monitors across 30+ regions at 99.99%.
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10,000+

Organizations Worldwide

99.99%

Platform Uptime SLA

30+

Global Monitoring Locations

Since 1998

Website Monitoring Leader

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Xerox - Dotcom-Monitor customer
Quick Answer

API monitoring is the continuous, automated practice of validating API endpoints for availability, response time, and data correctness — running synthetic requests from outside your infrastructure and alerting your team the moment any of those break. Unlike one-off tests, monitoring runs 24/7 on a fixed cadence from multiple global locations.

Choose your protocol or tool

Pick the API Surface You Need to Monitor

Each protocol has its own deep-dive page with setup guides, code samples, and use cases. Or just start a trial and we’ll auto-detect what you’re running.

REST API Monitoring
REST
  • Most common

REST API Monitoring

JSON validation, schema assertions, multi-step chaining, OAuth/JWT. The workhorse spoke for any team running HTTP REST APIs.

Explore REST monitoring
SOAP API Monitoring
SOAP
  • Enterprise & legacy

SOAP API Monitoring

WSDL import, XPath validation, SOAP 1.1/1.2 support, WS-Security. Built for enterprise, financial, and healthcare APIs.

Explore SOAP monitoring
GraphQL API Monitoring
GQL
  • Modern

GraphQL API Monitoring

Query-aware monitoring. Inspects the errors array and response data, since GraphQL returns 200 even on failure.

Explore GraphQL monitoring
Postman Collection Monitoring
POSTMAN
  • Import collections

Postman Collection Monitoring

Import Postman Collection v2.0/v2.1 JSON directly. Turn the API tests your team already maintains into 24/7 production monitors.
Explore Postman monitoring
Insomnia Collection Monitoring
INSOMNIA
  • Import collections

Insomnia Collection Monitoring

Import Insomnia v4 exports with full request details, environment variables, and auth configs preserved.

Explore Insomnia monitoring

 Looking for OAuth, JWT, mTLS, or other auth schemes? Every protocol above supports them — see the full auth matrix  →

External references: learn more about REST, SOAP, GraphQL, and the API pattern itself.

Why teams pick us

API Monitoring Built for Engineers Who Answer Pages

Six things teams tell us they couldn’t do as cleanly with Datadog, Pingdom, Uptrends, or Postman Monitors.

30+ Global Locations

Run distributed checks from North America, Europe, Asia-Pacific, and South America. Catch the regional CDN issue, the DNS propagation gap, the geo-routing fault.

99.99% Uptime Sla

Contractual uptime backed by 25+ years of monitoring infrastructure. Your monitoring tool itself never becomes the single point of failure.

Multi-Step Transactions

Chain login → fetch → mutate → confirm into one monitor. Pass tokens between steps, abort on first error, capture step-level logs.

Native PagerDuty, Slack, Teams

Route alerts directly into your incident tools — with diagnostic context, response payloads, and trace IDs in the first notification.

Private Agents (Behind Firewall)

Drop a lightweight agent inside your VPC to monitor internal microservices. Outbound connection only — no inbound firewall rules.

CI/CD & Monitors-As-Code

Trigger monitor runs from GitHub Actions, Jenkins, Azure DevOps. Gate releases on assertion results, latency, or availability.

Multi-step monitoring

Validate Real Workflows, Not Just Isolated Endpoints

 A working /health check doesn’t prove your business logic still works. Chain real sequences — auth → fetch → mutate → verify — and validate every step. The moment the chain breaks, you know exactly where, why, and what the response looked like.

  • Pass variables between calls — tokens, IDs, and dynamic values flow automatically.
  • Per-step assertions — status, headers, schema, payload contents on each request.
  • Abort on first error — full per-step request/response logs captured.
  • Works across protocols — REST, SOAP, GraphQL, mixed chains.
See multi-step in action on REST
Multi-step API monitoring view showing a four-call checkout flow where the final status check fails with a 503 timeout.
Secure Vault panel showing OAuth client credentials for API monitoring with the client_secret masked and marked as vaulted.
Authentication

Every Auth Scheme Your APIs Actually Use

Production APIs don’t live behind one auth method. Dotcom-Monitor natively supports the full spread — and masks every secret in Secure Vault, so credentials never leak into logs or exported scripts.

  • OAuth 2.0 — Client Credentials, Authorization Code, Refresh Token flows.
  • JWT with automatic refresh, plus API Key, Basic, and Bearer Token.
  • Enterprise: NTLM, Kerberos, mTLS (Client Certificate), AWS Signature v4.
  • Custom headers for any proprietary auth scheme.
See all supported auth methods
Global monitoring network

Checks That Run Where Your Users Live

Dotcom-Monitor operates its own monitoring infrastructure across 30+ locations on six continents — plus Private Agents you can deploy inside your VPC, behind firewalls, or on-prem to monitor internal microservices.

That means you catch the regional outage, the DNS propagation gap, the CDN misroute — not just the global ones.

30+

Global locations

6

Continents covered

1 min

Minimum check interval

Private Agents

For behind-firewall

Abstract world map showing Dotcom-Monitor's global API monitoring checkpoints scattered across six continents.
Getting started

From Signup to First Alert in Under Five Minutes

1

Define Endpoints & Assertions

Configure REST, SOAP, or GraphQL endpoints, headers, JSONPath/XPath assertions, and auth. Or import a Postman or Insomnia collection directly.

2

Schedule Synthetic Checks

Run checks at 1-, 3-, 5-, or 15-minute intervals from 30+ global locations across North America, Europe, Asia-Pacific, and South America.

3

Track Uptime & Performance

Track availability %, P95/P99 response times, TTFB, DNS time, and error rates by HTTP status code across every monitored endpoint.

4

Receive Real-Time Alerts

Get alerted via email, SMS, Slack, PagerDuty, or Teams within seconds — with response time, status code, and validation failures attached.

Why it matters

The Hidden Cost of API Downtime

APIs power payments, authentication, inventory, financial transactions, and SaaS integrations. When they fail — even briefly — the impact is immediate.

Mttr Impact

Mean Time to Resolution

Without proactive monitoring, teams rely on customer reports to detect failures — adding 30–60 minutes to detection alone. Continuous synthetic monitoring shortens detection to under 60 seconds, enabling faster root-cause isolation.

Sla & Compliance Exposure

Contractual & regulatory risk

For B2B SaaS, FinTech, and healthcare, API downtime triggers SLA penalties, compliance violations, and audit findings. Documented uptime evidence is what defends SLA adherence in renewal conversations.

Revenue-Per-Minute Exposure

Direct financial impact

An e-commerce platform processing 100 orders/min at $50/order loses $25,000 per 5-minute outage. A failed checkout, payment authorization, or auth call halts conversion immediately.

Third-Party API Blind Spots

Vendor accountability

Modern apps depend on Stripe, Auth0, Okta, Twilio. Even when your infrastructure is healthy, a degraded upstream can break checkout, login, and data sync. Monitor third-party endpoints to isolate fault origins.

Not ready for a trial?

Want a 15-Minute Walkthrough First?

A performance engineer will show you how to set up your first monitor in your environment — no sales pitch, just a working monitor by the end of the call. Direct calendar booking, no gatekeeping.

Book a 15-min walkthrough
Compared to alternatives

Where API Monitoring Tools Win and Lose

A reference for buyers weighing options. We try to be fair — every tool has a job; this is where we fit.

Capability
Dotcom-Monitor
Postman Monitors
Pingdom / Uptime-only
Datadog Synthetics
Multi-step API chains with variable passing
Full
Partial
JSON / XML / XPath payload assertions
Limited
OAuth 2.0 + JWT auto-refresh
Manual
Limited
SOAP / WSDL / WS-Security
Partial
Private Agents (behind firewall)
30+ global monitoring locations
Limited
Import Postman / Insomnia collections
(Postman)
CI/CD gate-blocking via API
Partial
Free trial
30 days, full features
Paid plans
14 days
14 days
  • Multi-step depth Postman Monitors can’t match
  • Payload validation Pingdom can’t match
  • Datadog-tier capability at a fraction of the cost
Start Your 30-Day FREE Trial
Book a 15-min walkthrough
In production

What Teams Catch With Us They Couldn’t Catch Before

  • E-commerce

Malcolm Group

Built a full checkout-flow monitor with EveryStep Recorder that runs every 15 minutes — adds items, applies coupons, validates pricing, submits with a declined card to test payment logic end-to-end.

  • Alerts now point at the broken component (cart, coupon, payment, batch) — not just "site down"
  • Catches issues that uptime checks miss because the site appears up
  • Nightly batch-submission monitor runs every 3 hours, catching backend regressions
  • Global retail

LuckyVitamin

Millions of monthly visitors across 50+ countries. Implemented Dotcom-Monitor synthetic + performance testing to safeguard checkout under peak load.

  • Real-time alerts and trend analytics uncovered hidden bottlenecks
  • Saved hundreds of engineering hours, protected revenue during 3–4× peak demand
  • Scaled monitoring confidence as international footprint grew
What customers say

The Teams Running Production APIs Say It Best

"I absolutely love the comprehensive monitoring services Dotcom-Monitor provides. The real-time alerts and detailed performance analytics have been a game-changer for our website's uptime and speed. The global monitoring feature ensures that our site is optimized everywhere, and the intuitive dashboard makes it easy to track performance. Their customer support is exceptional — always responsive and efficient."
Tomer C.
Managing Director · Facilities Services
Verified Capterra review · March 2025
"One of Dotcom's best features is the push/pull API capabilities that provide us with network performance data. We use this to monitor for performance issues as well as page loading stats. Dotcom-Monitor allows us to monitor multiple services within one interface and platform. It's allowed us to operate more efficiently."
Gregory S.
Manager · Broadcast Media
Verified Capterra review · May 2020
"I have been thoroughly impressed with the level of detail and comprehensiveness of the reports generated by the software. Moreover, the support team at Dotcom-Monitor has exceeded my expectations. On almost a daily basis, I reach out with various questions and they have consistently demonstrated unwavering patience, providing detailed and insightful answers."
Shirin R.
Software Test Engineer · Computer Software
Verified Capterra review · February 2023
"I'm a network analyst and use Dotcom tools inside the ISP I work, it's a really good and reliable tool for monitoring things along the network, and testing network components, I usually use it to make diagnostics of servers latency, and dns resolve time."
Leonardo J.
IT & Network Infrastructure Analyst Internet
Verified Capterra review · October 2022
Capterra

4.5

Capterra

83 reviews

Ease of Use

4.6

Ease of Use
Capterra Score reviews
Customer Service

4.6

Customer Service
Capterra Score reviews

All reviews sourced from Capterra verified reviews. Ratings as of October 2026.

Pricing

Start Free. Scale as Your APIs Grow.

Every plan includes REST API monitoring, synthetic checks, multi-step transactions, and uptime reporting. No hidden fees.

Free

Free Forever

$0

  • Up to 25 Targets
  • Up to 5 min Monitoring Frequency
  • 2 Global Locations
  • 7 Days Data Retention
  • Email Alerts
  • Public Dashboards
Get Started

Most popular

Subscriptions

Starting at

$19

.99 /mo

  • Up to 100 Targets
  • Up to 1 min Monitoring Frequency
  • 25 Global Locations
  • 1 Year Data Retention
  • 20+ Alert Integrations
  • Private Agents & API Config
Start Free Trial

Enterprise

Custom Pricing

Let’s talk

  • Unlimited Targets
  • Up to 1 min Monitoring Frequency
  • 30+ Global Locations
  • 3 Years Data Retention
  • 24/7 Priority Support
  • SSO, MFA & PO Billing
Contact Sales
See Full Pricing Comparison
By industry

API Monitoring Across Every Industry That Depends on Uptime

SAAS Providers

Monitor internal and third-party API dependencies to keep integrations returning correct data on time. Detect partner-API degradation before it cascades.

E-commerce

Track payment gateways (Stripe, PayPal), inventory systems, and shipping endpoints. A 5-min outage at checkout can cost tens of thousands during peak.

FinTech

Ensure financial APIs meet regulatory security and sub-second latency. Monitor transaction processing, KYC, and banking integrations to avoid failed transactions.

Healthcare

Monitor EHR APIs, insurance portals, and telemedicine platforms. Keep HIPAA-compliant data exchange endpoints available and responsive.

Enterprise IT

Validate cross-department API integrations — CRM, ERP, HR, communications. Detect cross-system failures before they disrupt internal workflows.

Media & Broadcast

Monitor content delivery APIs, streaming endpoints, and rights-management services. Validate that downstream consumers see correct data globally.

API Monitoring Features

Seven things every team running production APIs should do — independent of which tool they pick.

01

Monitor From Multiple Geographic Locations

A single location can’t detect regional DNS failures, CDN misconfigurations, or geo-routing issues. Use at least 5 distributed locations.

02

Validate Payloads — Not Just Status Codes

An HTTP 200 doesn’t guarantee correctness. Use JSONPath or XPath assertions to verify response bodies have the expected structure and content.

03

Set Baseline-Derived Alert Thresholds

Static thresholds trigger false positives. Establish per-endpoint baselines, then alert at 2× the P95 response time.

04

Monitor Authentication Flows End-To-End

Token expiration, OAuth refresh failures, and cert rotation are common causes of outages. Include auth steps so credential issues get caught early.

05

Test Multi-Step Transactions

A single endpoint may pass while the full transaction fails. Multi-step monitors catch session, sequencing, and data-dependency failures.

06

Monitor Third-Party Dependencies Separately

Payment gateways, identity providers, and shipping APIs degrade independently. Dedicated monitors isolate whether failures are internal or external.

07

Include API Monitoring in CI/CD

Run post-deploy synthetic checks. Automated smoke tests catch schema changes, missing fields, and regressions before they reach users.

Frequently asked questions

Answers DevOps Teams Want Before They Sign Up

API monitoring is the continuous, automated practice of validating API endpoints for availability, response time, and data correctness from outside your infrastructure. Unlike one-off tests, monitoring runs 24/7 from multiple global locations on a fixed cadence — and alerts you the second any of those break.

For an explanation of monitoring types, key metrics, and implementation steps, read our guide to API monitoring.

REST, SOAP, GraphQL, and any HTTP/S API. Dotcom-Monitor also imports Postman and Insomnia collections directly, turning existing API tests into continuous production monitors.

Yes. Dotcom-Monitor’s web API monitoring checks the REST, SOAP, and GraphQL endpoints behind your website, including authentication, checkout, and third-party integrations. It validates availability, response times, and response content from multiple monitoring locations.

If you need a website monitoring API for automation, Dotcom-Monitor’s Web API lets you create and configure monitors, while its XML Reporting Service (XRS) provides monitoring results for your own dashboards and tools. Learn more about the Dotcom-Monitor API and reporting integrations.

API Key, Basic Auth, OAuth 2.0 (Client Credentials, Authorization Code, Refresh Token), JWT with automatic refresh, Bearer Token, AWS Signature v4, NTLM, Kerberos, mTLS, and custom headers. Secrets are masked through the Secure Vault.

Yes. Multi-step monitors pass tokens, IDs, and dynamic values between steps, validate each step independently, and abort the chain at the first failure with full per-step request/response logs.

Yes. Deploy lightweight Private Agents inside your network — they initiate outbound connections, so no inbound firewall rules are required.

Uptime tools mark you green when a 200 comes back. We validate the actual response — JSON schema, headers, payload contents, latency percentiles, downstream chain success — so partial failures (the 200-but-broken kind) get caught.

API monitoring tests from outside (the user’s perspective). APM tracks internal behavior — code, database, server. Mature teams run both: synthetic for customer-facing checks, APM for root-cause debugging.

Yes. Trigger monitor runs via API from GitHub Actions, Jenkins, Azure DevOps. Gate the deploy on availability, latency, or assertion results to stop bad builds from reaching production.

As often as every minute per endpoint. We recommend 1-minute intervals for critical paths (login, checkout, payment) and 5- or 15-minute intervals for lower-priority endpoints.

Availability % (target 99.9%+), response time (P95/P99), error rate (4xx + 5xx), TTFB, DNS resolution time, SSL handshake time, and throughput. Plus payload validation — the metric uptime tools miss entirely.

For revenue-impacting APIs (login, payment, checkout), every minute. For less critical endpoints, every 5 or 15 minutes is fine. The right cadence balances detection time against check-volume cost.

Testing happens in development and CI to verify endpoints behave correctly before release. Monitoring runs continuously in production, tracking real-world availability, latency, and response accuracy over time. Testing catches bugs before deploy; monitoring catches failures, regressions, and degradation after deploy.

No. API monitoring tests from outside (the user perspective). APM tracks internal behavior — code execution, database queries, server resources. Mature teams run both: synthetic for customer-facing checks, APM for root-cause debugging.

Time to First Byte measures the elapsed time from sending a request to receiving the first byte of response. From a synthetic client this includes DNS, TCP, TLS, and server processing — but not the time to transfer the body. High response time with low TTFB points to a large payload; high TTFB points to slow server processing.

For global apps, at least 5 distributed locations covering your primary user regions. Typical baseline: North America East, North America West, Western Europe, Asia-Pacific, South America. This catches regional CDN issues, DNS propagation gaps, and geo-routing anomalies that single-location monitoring misses entirely.

Catch the Next API Outage Before Your Users Do

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  • 10,000+ organizations
  • Monitoring leader since 1998
  • 99.99% Uptime SLA