Black Duck Signal vs Replit Security Agent
Quick answer
Black Duck Signal (agentic AI AppSec) (Black Duck) and Replit Security Agent (agent platform with security scans, AI pentest and Agent autofix) (Replit) are both listed in the Code security category of Agent Index.
They share no framework tags in our dataset.
This is not a ranking.
Black Duck Signal (agentic AI AppSec) (Black Duck) and Replit Security Agent (agent platform with security scans, AI pentest and Agent autofix) (Replit) are both listed in the Code security category of Agent Index. They share no framework tags in our dataset.
| Field |  Black Duck Signal (agentic AI AppSec) |  Replit Security Agent (agent platform with security scans, AI pentest and Agent autofix) |
|---|---|---|
| Vendor | Black Duck | Replit |
| HQ | United States · North America | United States · North America |
| Primary category | Code security | Code security |
| Also listed in | Code security, Security | Code security |
| Summary | Agentic AI application security tool (GA March 2026) with role- and task-based agents that analyse new code in any language, filter findings by exploitability and apply verified fixes, callable from Claude Code, Gemini and GitHub Copilot via MCP. | US agentic development platform whose Security Agent reviews a project's full codebase (threat model plus Semgrep/HoundDog static analysis), Level 3 AI pentest black-box tests the running Preview, and accepted findings can be sent to Agent for parallel remediation with a follow-up rescan — listed as an agent platform with security integrations, not a dedicated AppSec scanner. |
| Frameworks (vendor-stated) | — | — |
| Frameworks (vendor-claimed) | — | — |
| Capabilities / tasks | appsec, sast, remediation, vulnerability management | agent platform with security integrations, appsec, pen test management, remediation |
| Pricing (as published) | Not published | Published: Core from $20/month ($18 annual); Teams from $100/month ($90 annual); Enterprise quote; Agent/security-scan usage billed as Agent work (replit.com/pricing at last check). |
| Pricing model | quote | published-tiers |
| Primary source | https://www.blackduck.com/signal-ai-appsec.html | https://docs.replit.com/features/security/agent-security-scans |
| Last checked | 2026-10-18 | 2026-10-20 |
| Official site | https://www.blackduck.com/signal-ai-appsec.html | https://docs.replit.com/features/security/agent-security-scans |
FAQ (from this dataset)
What is the difference between Black Duck Signal and Replit Security Agent?
Both are listed under Code security. Shared tasks: appsec, remediation. Black Duck Signal-only tasks: sast, vulnerability-management. Replit Security Agent-only tasks: agent-platform-security-integrations, pen-test-management. Differences are from stored category and task tags, not a ranking.
Which one publishes pricing?
Black Duck Signal (agentic AI AppSec): Not published Replit Security Agent (agent platform with security scans, AI pentest and Agent autofix): Published: Core from $20/month ($18 annual); Teams from $100/month ($90 annual); Enterprise quote; Agent/security-scan usage billed as Agent work (replit.com/pricing at last check).
Where are Black Duck Signal and Replit Security Agent headquartered?
Black Duck Signal (agentic AI AppSec) publishes HQ in United States. Replit Security Agent (agent platform with security scans, AI pentest and Agent autofix) publishes HQ in United States.
Listings tagged agent platform with security integrations are coding platforms with a documented scanner or vulnerability-fix workflow, not dedicated application-security products. Dedicated AppSec listings are compared on the AI code security agents table.
Use-case comparisons
- AI code security agents — 33 listings (Application security scanning, suggested or automated code fixes, and pull-request security review)
Related
- Black Duck Signal (agentic AI AppSec) alternatives
- Replit Security Agent (agent platform with security scans, AI pentest and Agent autofix) alternatives
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