Fast answer
What is the shortest definition of Headless SIEM?
A Headless SIEM exposes repeatable security work through many interfaces, including AI agents, APIs, automations, dashboards, and the normal SIEM UI.
Fluency FAQ
Headless SIEM answers for people and AI.
Clear answers about Fluency SIEM, Headless SIEM, the Logic Layer, agentic clients, pricing, access, and security.
Evidence and support
Certification Readiness And Delivery
How Fluency supports evidence analysis, operational planning, and putting the product to work.
Concept
Headless SIEM
What headless means, why it matters, and how it changes security work.
Architecture
Logic Layer
How Fluency turns SIEM infrastructure and security expertise into callable capability.
AI clients
Agents, Skills, And Packages
How Claude, ChatGPT, Codex, Co-Work, and role-based packages connect to Fluency.
Capabilities
Security Operations
What teams can ask Fluency to inspect, summarize, investigate, report, modify, and prepare.
Trust
Security, Access, And Governance
How access, roles, sensitive data, audit, and tenant scope are handled.
Commercial
Pricing And Access
How to evaluate Fluency, understand public pricing, and plan onboarding.
Buyer question
What makes Fluency different from an AI wrapper?
Fluency exposes the operating layer: tenant context, skills, workflow rules, evidence, memory, reporting, permissions, and audit. A wrapper usually exposes access to data or tools.
Security question
Can AI modify things?
Only through approved capabilities. Fluency supports read-only workflows and permissioned modification workflows such as onboarding and signature management.
Evidence and support
Certification Readiness And Delivery
How Fluency supports evidence analysis, operational planning, and putting the product to work.
How does Fluency support certification readiness?
It analyzes available security evidence and documented processes to identify supported controls and gaps.
The assessment distinguishes supported, partially supported, and not-yet-demonstrated controls, identifies missing evidence, and helps prioritize remediation. Results depend on the evidence available; they do not grant certification.
How does Fluency work alongside Vanta and Drata?
Fluency provides operational evidence analysis that complements compliance platforms.
Use the findings to understand what security activity demonstrates, where evidence or processes are incomplete, and what needs attention. This complementary role does not imply a direct integration with either platform.
Can leaders use Fluency beyond incident investigation?
Yes. Analyze, forecast, and compare across security operations.
Review coverage gaps, throughput, system health, usage, and billing. Compare environments or periods and project capacity and cost with explicit assumptions. Use the results to plan improvements and review progress.
What support does Fluency provide?
Hands-on deployment assistance and ongoing product support.
Our team helps customers overcome integration obstacles, verify data flow, and establish useful workflows, including multi-tenant operations for MSSPs. Fluency was recognized for Best Support in G2’s Fall 2026 reports. Discuss any managed-service needs separately from product support.
Does MCP train the underlying AI model?
Fluency supplies operational guidance at use time.
Its MCP tools, context, and skills help agents select capabilities, combine workflows, and interpret evidence within user permissions and customer scope. This is guidance for using the product, not a claim that Fluency retrains Claude or Codex.
Where can my team review the results?
Fluency Companion brings reports and operational artifacts into a shared review experience.
Teams can inspect findings, supporting evidence, limitations, and recommended actions within the appropriate customer scope, then use the work in investigations and operational planning.
Concept
Headless SIEM
What headless means, why it matters, and how it changes security work.
What is Headless SIEM?
Headless SIEM means security work is no longer limited to the SIEM browser interface.
The traditional interface still exists, but the same permission-aware security capabilities can also be called by AI agents, APIs, automations, dashboards, and service workflows. Fluency exposes the work itself: context, skills, functions, evidence, policy, and outcomes.
How is Headless SIEM different from a SIEM API or MCP wrapper?
An API exposes access. Headless SIEM exposes the operating model.
A wrapper can help an AI retrieve data or run searches. Fluency is designed to expose permission-aware security operations: tenant scope, allowed workflows, field validation, evidence handling, report structure, role-based permissions, and repeatable outputs.
Does Headless SIEM replace the Fluency interface?
No. The interface remains one approved way to use Fluency.
Headless SIEM makes the same security logic available through additional approved surfaces. Analysts can use the normal UI, while AI agents, APIs, dashboards, automations, and customer workflows call approved capabilities from outside the browser.
Why does AI need a security layer?
AI agents are only as capable as the tools, context, and controls underneath them.
If a SIEM gives an AI only screens, searches, or narrow API calls, the agent has to infer the workflow. Fluency gives the agent bounded security capabilities that already know how to resolve scope, choose valid fields, use evidence, and produce defensible outcomes.
Architecture
Logic Layer
How Fluency turns SIEM infrastructure and security expertise into callable capability.
What is the Fluency Logic Layer?
The Logic Layer is the operating abstraction between natural-language interfaces and Fluency infrastructure.
It exposes operational intent instead of raw API access. A request flows from an operator or agent into an MCP function, then into deterministic workflow logic, skills, Fluency APIs, approved queries, and report contracts.
What does deterministic mean in this context?
The AI may choose how to ask, but Fluency controls what work runs and how results are shaped.
Deterministic capabilities define their scope, inputs, allowed data sources, query paths, output structure, and safety rules. That keeps the system from turning every question into an ad hoc LLM-generated search.
What kinds of work can the Logic Layer run?
It supports tenant context, health, billing, posture, cases, investigations, signatures, replay, dashboards, and reporting.
The current MCP project includes operating modes for MSSP tenant discovery, data-source health, billing summaries, resource posture, behavioral activity, investigation, signature lifecycle, replay scenarios, schema and field discovery, local dashboards, and posture reports.
Why is this more valuable than giving AI access to records?
Records are the raw material. The value is the security work encoded around them.
A platform matters because it captures rules, domain language, lifecycle, ownership, evidence, policy, reporting, and next actions. Fluency’s Headless SIEM exposes those operating capabilities, not just the database underneath them.
AI clients
Agents, Skills, And Packages
How Claude, ChatGPT, Codex, Co-Work, and role-based packages connect to Fluency.
Which AI clients does Fluency support?
Fluency supports Anthropic and OpenAI agentic clients.
Publicly, that includes Claude, Claude Co-Work, Claude Code, ChatGPT, and Codex. The more important point is that approved agentic clients call permission-aware Fluency skills and functions rather than bypassing the security model.
What are Fluency skills?
Skills are reusable instructions that teach an agent how to perform a repeatable security task.
A skill is not just a tool. It tells an agent how to combine MCP functions, instruction groups, evidence, and report structure for work such as health reporting, case investigation, replay analysis, signature lifecycle, onboarding, and vCISO reporting.
How are skills delivered?
Skills can be delivered through Git, the MCP server interface, and the agentic client.
Fluency includes a built-in versioning system that checks whether the connected client has the expected functions and skills available. That keeps the agent, skill package, and server surface aligned as capabilities evolve.
What are Fluency packages?
Packages are role-focused bundles of skills and functions.
MSSPs, enterprise SOCs, vCISOs, investigators, security engineers, and AI SIEM evaluators need different operating surfaces. Packages let a team add the capabilities for its role, similar to adding an expansion pack for a specific mode of work.
Capabilities
Security Operations
What teams can ask Fluency to inspect, summarize, investigate, report, modify, and prepare.
What questions can customers ask Fluency?
Customers can ask operational questions, not just search questions.
Examples include: which tenants have broken data sources, what changed in case activity this month, which signatures have MITRE gaps, which customer has endpoint coverage risk, generate a health report, or investigate this case and explain what fired, what did not, and what to do next.
Is Headless SIEM read-only?
No. Some capabilities are read-only, and some are permissioned write or modification workflows.
Fluency can inspect, summarize, investigate, report, validate, and prepare. It also supports permissioned modification capabilities such as onboarding and signature management. The key is that change is tied to an explicit capability, permissioned, auditable, and not exposed as raw backend access.
Can Fluency produce customer-ready reports on demand?
Yes. Fluency can generate reports from repeatable security workflows and evidence.
Examples include health and status reports, case investigation reports, MITRE ATT&CK coverage summaries, Office 365 posture reviews, endpoint coverage reviews, monthly SOC reports, vCISO onboarding outputs, and executive summaries.
How does this help MSSPs?
MSSPs can turn service methodology into repeatable capability.
Instead of every analyst rebuilding the work manually, an MSSP can standardize tenant health checks, posture reviews, customer reports, investigation narratives, coverage maps, billing summaries, and service workflows across its customer grid.
Trust
Security, Access, And Governance
How access, roles, sensitive data, audit, and tenant scope are handled.
How secure is Headless SIEM?
Headless access uses the same authentication level as the Fluency interface, with additional permission boundaries.
Authentication can use MFA and OAuth capabilities, but security is more than login. Fluency also enforces role-based access to capabilities and data, tenant scope, repeatable workflows, auditability, and secure handling for sensitive values.
How are sensitive tokens and credentials handled?
Sensitive values are entered through secondary HTTPS channels rather than pasted into chat.
This separates credential handling from the conversational surface. The agent can guide onboarding and verification without turning secrets into natural-language transcript content.
How does Fluency keep AI from overreaching?
AI calls approved capabilities instead of unrestricted backend endpoints.
Capabilities define what scope is allowed, which fields are safe to query, what data source is used, what output shape is returned, and whether a workflow is read-only, validation-only, or allowed to modify state.
Can customers audit what happened?
Yes. Fluency is designed around evidence, deterministic outputs, and audit-friendly workflows.
The logic layer labels live data, cached data, report artifacts, and locked snapshots where that distinction matters. Outputs are shaped for review so teams can understand the evidence behind the answer.
Commercial
Pricing And Access
How to evaluate Fluency, understand public pricing, and plan onboarding.
How do you price Headless SIEM?
Headless SIEM is part of the Fluency SIEM relationship, not a detached tool.
Headless SIEM still uses the domain knowledge, processes, data infrastructure, analytics, and security model of Fluency SIEM. It is a different way to interact with the system. Customers should discuss Headless SIEM access during onboarding or with sales.
How is Fluency SIEM priced?
Three packages, starting at $75 a month. SMB is $7 per user with a $75 monthly minimum.
Fluency is sold in three packages. SMB is $7 per user per month with a $75 monthly floor, on standard rules with Office 365, SentinelOne, CrowdStrike, Microsoft Defender and Proofpoint. Core is $6 per user from 50 users and adds custom rules. Business is $5 per user from 200 users and adds syslog and HEC feeds. Servers are metered at $10 each per month and stored volume above the included allowance at $2.99 per GB. SMB and Core include 3GB per user and server per month; Business includes 2GB. Every package includes one year of data retention.
Can I get Fluency SIEM right away?
Yes. Customers can work with Fluency, an MSSP, or a reseller to get Fluency SIEM.
Start a trial through our evaluation page or work with Fluency, an MSSP, or a reseller. Connect your first data source and verify a useful workflow with the access and support appropriate to your environment.
What is involved in deployment?
Provisioning a site is the beginning; onboarding establishes usable data and workflows.
Fluency helps teams establish permissions, connect sources, verify data flow, and review initial results. Deployment timing depends on integration access and the environment. Our team helps resolve obstacles and supports ongoing operation.
Headless access
Learn what you can do with a headless SIEM.
Start an evaluation or work with Fluency, an MSSP, or a reseller. Establish your first useful workflow with the permissions, connected sources, and support your environment needs.