Fiddler AI agent observability
Agent evaluation, monitoring and explainability platform that CrowdStrike agreed to acquire on Nov 3, 2026, to sell as Falcon Observe.
Overview
Fiddler is an agent observability platform covering pre-deployment evaluation, continuous monitoring of agent behavior and explainability: tracing agent reasoning paths and tool calls, detecting behavioral drift and tracking token usage, across first-party, third-party and coding agents. CrowdStrike announced a definitive agreement to acquire Fiddler on November 3, 2026 at Fal.Con Europe, with closing expected in the fourth quarter of its fiscal year 2027, and plans to sell it as Falcon Observe. CrowdStrike did not disclose terms; the Wall Street Journal reported about $400 million for Fiddler (and $95 million for Dreadnode, a separate AI security-testing acquisition). The deal is pending, so Fiddler capabilities are not yet part of Falcon Guardian.
This is a sourced directory entry. Features and capabilities are reported in the linked sources; this entry does not document independent Aymorphic testing.
Key features
- Pre-deployment agent evaluation
- Continuous monitoring of agent behavior and behavioral drift
- Tracing of agent reasoning paths and tool calls
- Token usage tracking
- Planned to be sold as Falcon Observe within the CrowdStrike Falcon platform
Use cases
- Audit trail ('flight recorder') of what an agent did and why
- Governance monitoring of coding and third-party agents
Pricing
unknown; acquisition terms undisclosed by CrowdStrike (WSJ-reported about $400 million).
Pricing reflects the source record and may change. Confirm current terms with the provider.
Dates and sources
- Released
- Not listed
- Record updated
- 8 Nov 2026
- Record last checked
- 8 Nov 2026