Overview
For thirty years, the best application testers have been a small group of skilled humans. They still are. But the surface they cover has exploded and the attackers now have AI. Engineers ship more code, faster, with weaker review. Frontier models reason about code, chain weaknesses, and produce working exploits. AI hackers will be testing your apps. The only question is whose side they're on.
Tenzai reasons about your application the way an elite human would, 24/7. It discovers attack surface, chains weaknesses, and ships reproducible exploits with the evidence to fix them. Purpose-built for the enterprise: deep, exhaustive coverage; business-logic and chained vulnerabilities other AI tools and scanners miss; high accuracy; continuous learning every run. Transparent and guidable - your team scopes, directs, and reviews its reasoning at every step. Scales to every app you ship, continuously. No red team to schedule.
Most teams find something worth fixing in the first four hours.
What changes for customers:
- 120 x faster compliance. Work that took quarters now takes days.
- More in a week than five.
- 4% to 100% coverage.
Founded in 2025 by cybersecurity veterans Pavel Gurvich (CEO), Ariel Zeitlin (CTO), Aner Mazursky (CPO), Itamar Tal (VP R&D), and Ofri Ziv (VP Research). Backed by a record $75M seed from Greylock, Battery, and Lux Capital. Tenzai ranks top 1% across six global CTF platforms - beating 125,000 human hackers.
Highlights
- Tenzai is the AI hacker on your side - autonomous, end-to-end, and as sharp as an elite human. Ranked top 1% across six global CTF platforms - better than 99% of the people you'd hire to test your applications.
- Find what other AI and scanners miss. Deep, exhaustive coverage of the entire attack surface. Chained business-logic vulnerabilities. High accuracy. Continuous learning every run. Transparent reasoning your team can scope, direct, and review.
- Custom pricing via AWS Private Offer - contact sales
Details
Introducing multi-product solutions
You can now purchase comprehensive solutions tailored to use cases and industries.
Features and programs
Financing for AWS Marketplace purchases
Pricing
Dimension | Description | Cost/12 months |
|---|---|---|
Tenzai Enterprise | Annual enterprise subscription. Contact sales@tenzai.com for a Private Offer tailored to your environment and scan volume. | $0.01 |
Vendor refund policy
All fees are non-cancellable and non-refundable except as required by law.
How can we make this page better?
Legal
Vendor terms and conditions
Content disclaimer
Delivery details
API-Based Agents & Tools
API-Based Agents and Tools integrate through standard web protocols. Your applications can make API calls to access agent capabilities and receive responses.
Additional details
Usage instructions
Integration surface: Tenzai is consumed as an MCP server, not a public REST API. Any MCP-compatible client (Claude Code, Cursor, Devin, or a customer's own agent) can connect, authenticate, and call Tenzai tools.
MCP endpoint: https://mcp.tenzai.io/mcp
Authentication: OAuth 2.0 via Descope. The MCP client is redirected to Descope to sign in, then uses the returned JWT as a Bearer token on subsequent MCP requests. Tokens are scoped to a single Tenzai tenant.
Rotating credentials OAuth access token: No buyer action is required under normal operation. The MCP client rotates this token automatically through the standard OAuth refresh flow.
OAuth refresh token: To rotate this token, re-run the OAuth authorization flow by re-authenticating the MCP client.
Access key: To rotate this key, the buyer replaces it in the Descope tenant UI. The previous key value is invalidated immediately. Note that the new value is shown only once at creation and cannot be recovered afterward, so capture it at that time.
Revoking credentials To revoke all access for a buyer tenant: A Tenzai operator disables or deletes the tenant through the Tenzai support backoffice. This blocks all token refresh immediately, and any live tokens expire within 30 minutes.
Example -- adding Tenzai to Claude Code: claude mcp add tenzai -t http https://mcp.tenzai.io/mcp
On first use, Claude (or any MCP client) opens the Descope sign-in flow and stores the resulting token.
What you can do via MCP:
- List applications and tests in your tenant
- Launch new pentests against registered targets
- Query test status, network flows, and the agent's reasoning trace
- Retrieve findings (OCSF-compliant) and evidence
- Open tickets in Jira / ServiceNow directly from findings
Input modality: JSON tool arguments; optional uploads of source code, OpenAPI/Swagger specs, threat models, and authentication profiles via the Tenzai console.
Output modality: Structured security findings with evidence, reproducible exploit steps, OCSF-compliant JSON export, and Jira/ServiceNow ticket creation.
Model providers: Anthropic and OpenAI frontier models, accessed via Amazon Bedrock and direct provider APIs.
Data privacy: Zero data retention on all LLM calls; tenant-isolated infrastructure; SOC 2 Type II; no training on customer data; full audit trail.
Documentation: MCP integration guide and onboarding materials available at https://www.tenzai.com/support ; customer-facing API docs are on the roadmap.
Resources
Vendor resources
Support
Vendor support
Tenzai provides enterprise support for all AWS Marketplace customers.
Support email: support@tenzai.com Hours: 24x7 business-hours coverage with on-call escalation for Sev-1 issues.
Response SLAs: Sev-1 (production down / active exploit blocking) -- 1 business hour; Sev-2 (major functionality impaired) -- 4 business hours; Sev-3 (minor issue / question) -- 1 business day;
Onboarding: Every new customer is paired with a Tenzai solutions engineer for kickoff, target onboarding, and first-scan walkthrough. Security & compliance: SOC 2 Type II, zero data retention on all LLM calls, tenant-isolated infrastructure. Compliance reports available on request. Refunds: No refunds, except as required by the applicable agreement. Contact support@tenzai.com for any billing or service issues.
AWS infrastructure support
AWS Support is a one-on-one, fast-response support channel that is staffed 24x7x365 with experienced and technical support engineers. The service helps customers of all sizes and technical abilities to successfully utilize the products and features provided by Amazon Web Services.