Gecko scans codebases and reviews pull requests for exploitable vulnerabilities; Aevral adds a reading focused on the authorization and business-logic questions: PR review, live on install, on the pull request, and a whole-repo scan at rest.
| Row | Gecko Security | Aevral |
|---|---|---|
| Question it answers | Where are the exploitable attack paths in this codebase? | Who has access to what, and does this change widen it? |
| Stated job | AI-native engine with a semantic graph, threat modelling, natural-language rules, cross-repo contextual scanning, and a pull-request review bot with one-click autofix, per Gecko's site | Security reading of the PR diff (access control, business logic, injection, XSS, SSRF, path traversal, LLM integration), and an access-control and business-logic reading of the whole-repo snapshot at rest |
| Where it runs | CI/CD and the PR/MR bot; cloud, with Enterprise on-prem, self-hosted, and private-cloud options, per Gecko's site | GitHub Check and inline comments, live on install; scans run from the console on a chosen SHA |
| Unit of work | Findings with fixes; Free tier 10 scans, Pro USD 100/month, per Gecko's pricing | Up to five findings per review, grounded on the added lines; scan findings come as leads with evidence |
| Complementary? | Yes | Yes |
Gecko describes an AI-native engine that builds a semantic graph of the application and surfaces multi-step and business-logic vulnerabilities, with threat modelling, natural-language rules, contextual scanning across repositories and microservices, and a pull-request review bot with one-click autofix, per Gecko's site. Its pricing starts free with 10 scans; Pro is USD 100 per month; Enterprise adds unlimited scanning with on-prem and self-hosted options. Aevral is built for a reading of its own: its PR review, live on install, looks for access control, business logic, injection, XSS, SSRF, path traversal, unsafe deserialization, token and session flaws, and LLM-integration risks on the change, and its whole-repo scan reads who has access to what: authorization, IDOR, and business-logic access control. Good code and safe access are separate properties; a change can read well while moving the other.
Gecko publishes business-logic vulnerabilities and cross-service attack paths in its scope, and its review bot reads pull requests; Aevral reads access control and business logic at rest, and a wider security class list on the pull request. With Aevral's PR review, live on install, both run on the same pull request; Aevral also reads the repository snapshot at rest as a whole-repo scan, for access control and business logic only. Gecko's docs describe one-click autofix; Aevral does not apply fixes: a finding can carry a suggested diff you apply, plus a prompt you hand to the coding agent you already use. The framing stays complementary: each tool does the job it publishes, and this page makes no claim about results on your pull requests.
Gecko
Gecko Security analyzes code, logic, and infrastructure to find exploitable vulnerabilities and give developers fixes, per Gecko's site. It builds a compiler-accurate graph of the codebase, scales threat modelling, takes natural-language security rules, and scans across multiple repositories and microservices for issues that surface between trust boundaries, with CI/CD scanning and a pull-request review bot with one-click autofix. Pricing starts free with 10 scans; Pro is USD 100 per month; Enterprise adds unlimited scanning with on-prem, self-hosted, and private-cloud options.
Aevral
Security review, handled. PR review, live on install, looks for access control, business logic, SQL and command injection, XSS, SSRF, path traversal, unsafe deserialization, token and session flaws, and LLM-integration risks on the diff. Paid PR plans are live in the console. The whole-repo scan is live and self-serve, and reads authorization, IDOR, and business-logic access control only. A finding is a lead with evidence, and a human decides. No patches are auto-applied.
This change moves the admin gate from a list of admin prefixes to a list of public prefixes so new admin endpoints ship without edits. The smoke tests cover the seeded admin and public routes, and every page still renders.
const PUBLIC_ROUTES = ["/", "/login", "/pricing"] const gate = (p: string) => ADMIN_ROUTES.some((r) => p.startsWith(r)) const gate = (p: string) => PUBLIC_PREFIXES.every((r) => !p.startsWith(r)) return gate(req.path) ? adminLayout(req) : redirect("/login")Every seeded route resolves and the smoke tests pass. What changed is the default: the gate moved from naming what is admin to naming what is public, so any route outside the public prefixes, a new admin endpoint or an unrouted prefix, now renders the admin layout for whoever reaches it. Aevral is built to read a diff for the default that flipped, not the list that moved.
Keep Gecko for semantic cross-service scanning and its PR bot; run Aevral for its security reading of the same pull requests and the access-control reading of the whole-repo snapshot, live on install.
No. Gecko does its stated job and keeps doing it. Aevral runs alongside it with its own reading: its PR review, live on install, looks for access control, business logic, injection, XSS, SSRF, path traversal, and LLM-integration security on the pull requests it reviews, and its whole-repo scan reads access control and business logic across the repository at rest.
No. This page states each product's job and shows one worked example of Aevral's own reading. Results on your code depend on your code; evaluations belong to you.
Aevral is self-serve: install the GitHub App and log in to the console. The waitlist form is a launch-updates channel; joining does not reserve a price, access, or a contract.
More comparisons
The shorter version, at a glance: Gecko Security and Aevral on the works-alongside page.
Primary sources: Gecko Security; Gecko Security FAQ; Aevral PR security review; Aevral whole-repo scan.
Install the GitHub App and PR review starts on. Sign in with GitHub to connect it, then press Scan for the repository you already have.
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