Community
Free
- test runs
- 30 per month
- repositories
- 1
- users
- 1
- Custom context and rules
- No credit card required
Kerno pricing
Kerno writes and runs backend tests against a running app and its real dependencies to catch runtime and security bugs.
- Free plan
- Yes
- Paid from
- -
- Plans
- 3
- Free trial
- -
What is Kerno?
Kerno is a runtime backend testing tool for engineering teams and coding agents. It writes and runs tests against a running application and its real dependencies, covering end to end backend flows, API testing, security testing, MCP testing, contract testing and async worker testing. It maps the blast radius of a code change and verifies each affected flow, and it integrates into CI and agent loops so regressions surface before merge. It is aimed at developers using AI coding agents and at teams wanting consistent verification. A free plan and paid and enterprise plans are offered.
Plans and prices
Pro
$50/mo per dev
$37.50/mo billed yearlysave 25%
- Unlimited test runs
- Unlimited repositories
- Unlimited users
- Team and codebase analytics
- CI integration
Enterprise
Customcontact sales
- SSO and SAML
- Self-host in own infrastructure
- Audit logs and data controls
- Dedicated support, SLA, onboarding
- Custom DPA and terms
- Custom invoicing and payment terms
Prices in USD, as shown by kerno.io. Source: pricing page. Last checked October 30, 2026.
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See the prompt
I want to decide whether Kerno (kerno.io) is the right tool and which plan to pick. Below is what the StableMRR pricing directory read from Kerno's own pricing page (last checked 2026-10-30). It can be out of date, so treat it as a starting point. Category: Developer tools / Testing and QA What it does: Kerno writes and runs backend tests against a running app and its real dependencies to catch runtime and security bugs. Plans: - Community: Free. Limits: test runs 30 per month, repositories 1, users 1. Includes: Custom context and rules, No credit card required - Pro: $50/mo per dev ($37.50/mo billed yearly). Includes: Unlimited test runs, Unlimited repositories, Unlimited users, Team and codebase analytics, CI integration - Enterprise: Contact sales. Includes: SSO and SAML, Self-host in own infrastructure, Audit logs and data controls, Dedicated support, SLA, onboarding, Custom DPA and terms Alternatives in the directory: 12 Testers 14 Days, AgentScan, Appetize.io, Beeceptor Pricing page: https://kerno.io/pricing/ Directory listing: https://stablemrr.com/p/kerno-io First ask me three short questions about my team size, budget and what I need it for. Then recommend one plan, tell me what could make it a bad fit, and compare it with the alternatives. Finish with what I should check on the vendor's site before I pay.
Pricing facts
- Pricing model
- Per seat
- Billing
- monthly or yearly
- Discounts
- Annual billing 25% off, Free for qualified open source projects, 50% off for pre-Series A startups under $2M revenue
About Kerno
- Platforms
- api
- Integrations
- Claude Code, Codex, Cursor, GitHub Copilot, PostgreSQL, MySQL, MariaDB, MongoDB, ClickHouse, Redis, Kafka, RabbitMQ and 3 more
Features
- Per-developer pricing
- Free plan no credit card
- Unlimited runs on Pro
- CI integration
- Team analytics
- SSO and SAML on Enterprise
- Self-hosting on Enterprise
- Audit logs on Enterprise
Price history
No price changes recorded since we started tracking on October 30, 2026.
Alternatives to Kerno
| Product | Category | Free plan | Paid from | Plans | Checked |
|---|---|---|---|---|---|
| 12 Testers 14 DaysManaged service that supplies Android testers for Google Play closed testing and production access preparation. | Testing and QA | No | $15/mo | 3 | Oct 29, 2026 |
| AgentScanScans Claude and AI agent skills locally for malware, secrets, network calls and license issues before install. | Testing and QA | Yes | - | 2 | Oct 29, 2026 |
| Appetize.ioCloud-based iOS simulators and Android emulators that run mobile apps in a web browser for testing, demos, and support. | Testing and QA | Yes | $89/mo | 4 | Oct 29, 2026 |
| BeeceptorHosted mock server platform for creating REST, SOAP, GraphQL and gRPC APIs for testing and development. | Testing and QA | Yes | $10/mo | 4 | Oct 29, 2026 |
| Beta FamilyPlatform where app developers find beta testers for iOS and Android apps and get AI-summarized test reports. | Testing and QA | Yes | $49/mo | 3 | Oct 29, 2026 |
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How this page was made. Plans and prices are read automatically from kerno.io's public pricing page, checked against the page text, and re-checked about every week. Method. Something wrong? Tell us.