Review · Logged September 2026

Cotool review: threat hunting and detection agents for blue teams

Detection, response and hunting agents built in natural language across 40+ integrations.

#47.10 / 10Best for building custom blue-team agents

Editorial assessment · From vendor product pages, docs and announcements · Updated 2026-10-18

What does Cotool do?

Cotool calls itself 'AI for the blue team' and says it helps teams 'scale detection, response, and threat hunting beyond headcount.' It has three product areas: Detect, Respond and Hunt.

Hunt agents 'crawl the web to produce structured threat intel from unstructured sources like blogs, government databases, corporate disclosures, and more,' check each item for relevance to the customer's environment, and propose forward-looking detections even where no exposure is found yet. Teams can add their own intelligence, including STIX and TAXII feeds.

Detect lets a team describe its threat model in natural language, tune existing rules with the same agents, and map 'your entire detection suite across sources onto the MITRE ATT&CK framework to monitor coverage and surface gaps.' Cotool says it is 'compatible with your existing detection-as-code infrastructure' and keeps agent version control. Investigations started in chat can become always-on agents: 'Investigate once, automate forever.'

Cotool now describes itself as an 'AI SOC and agent-native SIEM for the blue team.' It says 'logs you store in Cotool are optimized for agents, with ultra-fast search at a fraction of traditional SIEM cost,' and that 'a detection can run against logs in Cotool or directly against the tools where your data already lives.'

Key facts

Key facts about Cotool
Category	AI SOC and agent-native SIEM for the blue team
Hunting approach	Agents gather public and custom intelligence, check relevance, propose detections
Data access	Stores logs optimized for agents; detections can also run directly against the tools where data already lives, through 40+ native integrations and custom MCP servers
Platforms named publicly	Splunk, Datadog, Panther, Snowflake, Databricks; CrowdStrike, Microsoft Defender, SentinelOne, Okta, Code42, Kandji; incident.io, Jira, Linear, TheHive, Tines; VirusTotal, AbuseIPDB, GreyNoise, urlscan, Socket; Slack, Microsoft Teams
ATT&CK claim	Maps the detection suite onto ATT&CK for coverage and gaps
Detection workflow	Works with existing detection-as-code tooling; agent version control; automatic tuning
Deployment	Not published
Pricing	Not published
Company	San Francisco; investors listed as Andreessen Horowitz, WndrCo, Y Combinator and Homebrew

Source: cotool.ai · Read 2026-10-13 · cotool.ai/hunt · cotool.ai/detect · Read 2026-10-13 · cotool.ai/about · Source dates shown above

How does Cotool score?

7.10 / 10

Hunt automation

25%8 / 10

Agents gather intelligence from public sources, check relevance to your environment and propose detections.

Works across existing SIEM and data lakes

20%8 / 10

40+ native integrations including Splunk, Panther, Datadog, Snowflake and Databricks, plus custom MCP servers.

Analyst effort saved

15%8 / 10

Chat investigations can be turned into always-on agents.

ATT&CK coverage evidence

10%8 / 10

Maps the whole detection suite onto ATT&CK to show coverage and gaps.

Detection-as-code workflow

10%7 / 10

Compatible with existing detection-as-code tooling, with agent version control.

Deployment

10%6 / 10

Deployment model and timeline are not published.

Pricing transparency

10%2 / 10

No public price.

Where Cotool scores lower

Deployment (6 of 10): no published deployment model or timeline.
Detection-as-code workflow (7 of 10): compatible with existing tooling rather than providing a documented workflow of its own.
Hunt automation (8 of 10): strong intel-driven hunting, one point behind Mars and Nebulock.
Pricing transparency (2 of 10): no public price.

What does Cotool publish about ATT&CK coverage?

Cotool describes mapping a detection suite onto ATT&CK to surface gaps, but does not name specific tactics on its public pages.

Who should shortlist Cotool?

Good fit if

You want to build your own agents across many tools rather than adopt a fixed workflow.
You already run detection-as-code and want agents that work with it.

Look elsewhere if

You need a documented deployment model before a first call.

How does Cotool compare?

Frequently asked questions

What does Cotool Hunt do?

It gathers threat intelligence from public and custom sources, checks each item for relevance to your environment, and proposes detections.

Does Cotool map detections to ATT&CK?

Yes. Its Detect page says it maps a detection suite across sources onto ATT&CK to monitor coverage and surface gaps.

Visit cotool.ai