deepset vs Mastra
Which Agents AI tool is better in 2026?
deepset
Haystack framework and deepset Cloud for enterprise LLM apps
Mastra
The open-source TypeScript framework for building AI agents
Side-by-side
deepset leads on both fronts — more capital raised ($45.6M) and a lower entry price than Mastra.
| Metric | deepset | Mastra |
|---|---|---|
| Taglinei | Haystack framework and deepset Cloud for enterprise LLM apps | The open-source TypeScript framework for building AI agents |
| Foundedi | 2018🏆 | 2024 |
| HQi | Berlin, DE | San Francisco, US |
| Employeesi | 51-100🏆 | 11-50 |
| Neuron scorei | 82🏆 | 71 |
| Total fundingi | $45.6M🏆 | $13M |
| Latest roundi | Series B · Aug 2023 | Seed · Oct 2025 |
| Valuationi | —🏆 | — |
| Cheapest paid plani | Pricing not disclosed🏆 | Pricing not disclosed |
| Free plani | ✗ | ✓ |
| Free triali | ✗ | ✗ |
| Top tier pricei | Pricing not disclosed | Pricing not disclosed |
| Pricing summaryi | Enterprise · Contact sales | Open source |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for deepset and Mastra.
| Capability | deepset | Mastra |
|---|---|---|
| MCP support | ✗ | ✓ |
| Public API | ✓ | ✓ |
| Webhooks | ✓ | ✗ |
| OAuth 2.0 | ✓ | ✗ |
| SDK languages | 2 (python, rest) | — |
| Free plan | ✗ | ✓ |
| Free trial | ✗ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of deepset
- Has raised more capital ($45.6M vs $13M)
- Higher Neuron score (82 vs 71)
- More mature (2018)
🔵 Strengths of Mastra
- Offers a free plan
- Newer company (2024)
Which should you choose?
Choose deepset if price matters most — it starts at Enterprise · Contact sales, which is friendlier for teams watching burn. Both AI Agents tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose deepset if you want the most established option — it has raised $45.6M, suggesting more runway for enterprise features, support, and long-term roadmap. For mission-critical workflows or larger teams, that stability often outweighs a lower monthly price.
Frequently asked questions
deepset vs Mastra — which is better?
It depends on your priority. deepset has raised more capital and is the more established option; Mastra has broader feature depth. See the side-by-side table above.
Is deepset cheaper than Mastra?
Yes — deepset's cheapest paid plan is Enterprise · Contact sales, while Mastra's is Open source.
Do deepset and Mastra offer free plans?
deepset: Paid only. Mastra: Yes, has a free plan.
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