Both sit in the framework layer with similar commercial terms, so the practical split is language: Mastra targets TypeScript and DSPy targets Python.
TypeScript agent framework with workflows, memory, evals and a local playground.
Programs, not prompts — compile and optimise the prompt against a metric.
| Mastra | DSPy | |
|---|---|---|
| Licence | Open source | Open source |
| Pricing | open source | open source |
| Self-hostable | Yes | Yes |
| Languages | TypeScript | Python |
| Install | npm install @mastra/core | pip install dspy |
| Keys required | None | None |
Both sit in the framework layer with similar commercial terms, so the practical split is language: Mastra targets TypeScript and DSPy targets Python. Mastra: TypeScript agent framework with workflows, memory, evals and a local playground. DSPy: Programs, not prompts — compile and optimise the prompt against a metric.
Mastra can run on your own infrastructure. DSPy can run on your own infrastructure.
Mastra is open source (open source). DSPy is open source (open source).
Every page here answers to Accept: text/markdown and returns the same content at roughly a tenth the tokens. No separate site, no toggle — same URL.
curl -s -H "Accept: text/markdown" https://newagent.build/compare/mastra-vs-dspy