Parameter

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Introduction

Parameter’s agents find vulnerabilities in web apps, APIs and infrastructure continuously rather than once a year. Setup needs no weeks of scoping and no agents to install: just a URL and credentials.

Agents probe APIs, auth flows and business logic like a human red team, and every validated finding includes reproduction steps, a working proof of concept and remediation guidance. Industry pages cover payment flows with PCI DSS and SOC 2 evidence and healthcare systems with HIPAA and SOC 2 evidence.

Launch and background: Y Combinator’s company directory lists Parameter in its Winter 2026 batch, with the one-liner “AI pentesting, that works!”.

Features

1. URL-and-credentials setup: No installs.
2. Business-logic testing: Auth flows and logic.
3. PoC per finding: Reproduction steps included.
4. Asset monitoring: Exposed assets mapped and watched.
5. Compliance evidence: PCI DSS, HIPAA and SOC 2.

Pros

1. Fast onboarding: Minimal scoping.

Cons

1. Pricing not listed: Contact sales.
2. Very new: Winter 2026 batch.

Usage and Links (Example)

1. Provide target URLs and test credentials.
2. Let agents run continuously.
3. Use findings as audit evidence.

Resources:

• Parameter website

Pricing

Prices were not listed on the website when checked on 11 November 2026; contact the vendor for plans.

Recommended for?

1. Fintech and health startups needing compliance-ready pentests.

Conclusion

Parameter is a low-friction continuous pentesting service.

Check how it handles multi-role authorisation tests.

On CheckOps, Parameter is filed under the Security testing and Production monitoring & observability stages. Related tools listed here include StackHawk, Burp Suite, Intruder, Detectify, Probely and Invicti (formerly Netsparker). When comparing them, weigh the licence, the languages and platforms each supports, whether it is self-hosted or managed, and how cleanly it slots into your existing CI pipeline. Details on this page were checked against the official website, documentation and repository on 11 November 2026.