Compared honestly · Updated May 2026

MergeWhy vs Kosli

Kosli pioneered the change-evidence category and is the only other serious player in this space. We respect the work — they made enterprises take cryptographic compliance evidence seriously. The honest difference: Kosli is built enterprise-down (Deutsche Bank-style pilots, custom pricing, long sales cycles). MergeWhy is built developer-up (free GitHub App, public pricing, install in 60 seconds). Below is a specific, no-fog comparison.

Disclaimer:we built MergeWhy. We checked Kosli's public docs, blog, and product pages as of May 2026 to write this. If anything's wrong, email hi@mergewhy.com— we'll correct it the same day.

At a glance

Kosli

Enterprise-down change attestation
Strengths
  • Mature production deployments at Deutsche Bank-scale orgs
  • $13.45M raised, established sales motion
  • Deeper integrations with bespoke CI/CD setups (Jenkins, Bamboo)
  • Strong artifact/flow tracking model with named environments
Gaps
  • Custom enterprise pricing — no public free tier
  • No public CMMC SPRS calculator or DoD-specific tooling
  • No OSCAL 1.1.2 export announced
  • Long enterprise sales cycle to first DER
  • No GitHub-Marketplace one-click install

MergeWhy

Developer-up cryptographic compliance
Strengths
  • Free Pilot tier — install GitHub App, first DER in 60 seconds
  • OSCAL 1.1.2 SSP / Assessment Results / POA&M export
  • Free public CMMC SPRS calculator at /cmmc-score
  • 26 frameworks evaluated, including SOX ITGC, FedRAMP, NIST 800-53
  • AI sovereignty: SaaS, AWS Bedrock, fully air-gapped Ollama
  • In-browser SHA-256 verify + public Sigstore Rekor anchoring
Gaps
  • Younger company — 2025 vs Kosli's 2019 founding
  • Smaller installed base today
  • Less depth on bespoke Jenkins/Bamboo CI vs Kosli's pre-built kits
  • No published case studies at the Deutsche Bank scale (yet)

Feature comparison

Verified May 2026 against Kosli's public docs + product pages. ✓ ships, ⚪ partial / requires upgrade, ✗ not available.

Core change-evidence model
Cryptographic vault per change/merge
Tamper-evident audit chain
In-browser SHA-256 re-verification
MergeWhy: Web Crypto round-trip on the verify page
Sigstore Rekor public anchoring
Auditors can verify the chain head externally
Artifact / flow / trail model
Kosli pioneered this; we shipped it Feb 2026
Compliance frameworks
SOC 2 Type II
Kosli supports SOC 2 evidence; less framework-mapped automation
SOX ITGC + PCAOB AS 2201 sampling
MergeWhy includes stratified sampling engine
CMMC L1/L2/L3 + SPRS scoring
MergeWhy: free public calculator at /cmmc-score
OSCAL 1.1.2 export (SSP/AR/POA&M)
FedRAMP Sept 2026 deadline; not announced by Kosli
HIPAA / PCI / ISO 27001 / NIST 800-53
DORA / NYDFS / SEC Cyber
Integrations & deployment
GitHub App (one-click install)
Kosli requires bespoke pipeline setup
GitLab / Bitbucket / Azure DevOps
Jenkins / Bamboo / TeamCity kits
Kosli has the maturity edge here
Self-hosted / air-gapped option
Open-source Docker collector
MergeWhy: open under MIT; Kosli: enterprise-licensed
Auditor experience
External auditor portal (read-only)
One-click audit bundle ZIP
MergeWhy: 20-second auto-download per framework
Trust Center with live posture
AuditBoard CSV export
Pricing & access
Public free tier
Public pricing
Kosli: enterprise-only, custom pricing
Self-serve signup

Pick Kosli if…

  • • You're a Tier-1 bank or 50,000-engineer enterprise needing white-glove rollout
  • • Your CI is heavy Jenkins/Bamboo with bespoke pipelines
  • • You want named environment promotion semantics as the core model
  • • You have a $200k+/yr compliance-evidence budget and want a long pilot
  • • You don't care about CMMC, OSCAL, or DoD-specific tooling

Pick MergeWhy if…

  • • You're GitHub-native and want a free start before committing
  • • You need CMMC L2/L3 SPRS scoring or OSCAL 1.1.2 export
  • • You want public, real pricing and self-serve onboarding
  • • You want every layer cryptographically verifiable, including in-browser by your auditor
  • • You need the AI provider choice (SaaS, Bedrock GovCloud, or air-gapped)

The honest take

Kosli is excellent if you're a multi-thousand-engineer bank with a dedicated compliance team and a long pilot timeline. We're excellent if you're a GitHub-native team — anywhere from Series B SaaS to a DoD contractor — that wants to install something in 60 seconds and see cryptographic evidence flowing on every PR by tomorrow morning. We both believe change-evidence is the future of compliance. We just built different doors into the same building.

Free CMMC SPRS calculator
60 seconds, no signup
Our live Trust Center
See what your auditor will see
Install GitHub App
First DER in 60 seconds