Overview
The List Runtimes endpoint returns all available runtime environments for executing checks in Checkly. This endpoint helps you discover supported runtime versions and their capabilities for browser and API checks. Common Use Cases:- Runtime Discovery
- Version Planning
- Environment Configuration
- Compatibility Checking
Authorizations
The Checkly Public API uses API keys to authenticate requests. You can get the API Key here.
Your API key is like a password: keep it secure!
Authentication to the API is performed using the Bearer auth method in the Authorization header and using the account ID.
For example, set Authorization header while using cURL:
curl -H "Authorization: Bearer [apiKey]" "X-Checkly-Account: [accountId]"Headers
Your Checkly account ID, you can find it at https://app.checklyhq.com/settings/account/general
Response
Successful
The unique name of this runtime.
"2025.04"
Does this runtime supports multi step checks
The full Node.js version available in this runtime.
"v18.20.3"
An object with all dependency package names and versions as in a standard package.json.
{
"@playwright/test": "1.51.1",
"@axe-core/playwright": "4.10.1",
"@azure/identity": "4.9.1",
"@azure/keyvault-secrets": "4.9.0",
"@checkly/playwright-helpers": "1.0.3",
"@faker-js/faker": "9.7.0",
"@google-cloud/local-auth": "3.0.1",
"@opentelemetry/api": "1.9.0",
"@opentelemetry/exporter-metrics-otlp-grpc": "0.53.0",
"@opentelemetry/sdk-metrics": "1.26.0",
"@opentelemetry/sdk-trace-base": "1.26.0",
"@t3-oss/env-nextjs": "0.11.1",
"@xmldom/xmldom": "0.9.2",
"aws4": "1.13.2",
"axios": "0.28.0",
"btoa": "1.2.1",
"crypto-js": "4.2.0",
"date-fns": "3.3.1",
"date-fns-tz": "3.1.3",
"dotenv": "16.4.5",
"ethers": "6.13.2",
"expect": "29.7.0",
"form-data": "4.0.1",
"gmail-api-parse-message-ts": "2.2.33",
"google-auth-library": "9.14.1",
"googleapis": "144.0.0",
"graphql": "16.9.0",
"graphql-tag": "2.12.6",
"jose": "5.9.2",
"jsdom": "25.0.0",
"jsonwebtoken": "9.0.2",
"lodash": "4.17.21",
"long": "5.2.3",
"moment": "2.30.1",
"nice-grpc": "2.1.12",
"nice-grpc-client-middleware-deadline": "2.0.15",
"nice-grpc-client-middleware-devtools": "1.0.7",
"nice-grpc-client-middleware-retry": "3.1.11",
"nice-grpc-common": "2.0.2",
"nice-grpc-error-details": "0.2.9",
"nice-grpc-opentelemetry": "0.1.18",
"nice-grpc-prometheus": "0.2.7",
"nice-grpc-server-health": "2.0.14",
"nice-grpc-server-middleware-terminator": "2.0.14",
"nice-grpc-server-reflection": "2.0.14",
"nice-grpc-web": "3.3.7",
"otpauth": "9.4.0",
"playwright": "1.51.1",
"pdf2json": "3.1.4",
"prisma": "6.6.0",
"protobufjs": "7.5.0",
"tedious": "18.6.1",
"twilio": "5.3.0",
"uuid": "11.1.0",
"ws": "8.18.1",
"xml-crypto": "6.1.1",
"xml-encryption": "3.1.0",
"zod": "3.24.3",
"@clerk/testing": "1.5.1",
"mailosaur": "8.6.1",
"gaxios": "6.7.1",
"@kubernetes/client-node": "1.1.2",
"mysql": "2.18.1"
}Current life stage of a runtime.
ALPHA, BETA, CURRENT, DEPRECATED, REMOVED, STABLE "STABLE"
Date which a runtime will be removed from our platform.
"12/31/2022"
A short, human readable description of the main updates in this runtime.
"Main updates are Playwright 1.51.1"