April 9, 2026
Mastra
Mastra is a Typescript framework to build AI agents
- Round
- Series A
- Amount raised
- $22M
- Lead investor
- Spark Capital
- Industry
- Artificial Intelligence (AI)
- Headquarters
- San Francisco, United States
- Employees
- 11-50
- Website
- mastra.ai
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Other investors
- Y Combinator