1. E2B
FoundryLabs, Inc · San Francisco · AI infrastructure tools · 4.3/5
Secure cloud sandboxes for AI agents to run code, browse and use tools in isolated environments
Free plan
Free plan available
AI infrastructure tools · Alternatives
Best Arthur alternatives in India (2026)
Arthur is an ai infrastructure tools product from Arthur, priced at Free plan with a free plan. We compared 20 alternatives on published price, free plan, platforms and made-in-India support: 16 have a free plan, 0 are built in India.
Quick answer
The closest alternatives to Arthur are E2B (Free plan), Fiddler AI (Free plan), Mastra (Free plan), Galileo AI (Free plan) and FriendliAI (Free plan). E2B is the top-ranked option with a free plan.
Arthur alternatives compared
Ranked by how closely each product matches Arthur's category, pricing model, platforms and business size, then by rating. Prices exclude GST.
| # | Software | Starting price | Free plan | Platforms | Made in India | Rating | Compare |
|---|---|---|---|---|---|---|---|
| — | Arthur (current) | Free plan | Yes | Web | No | 4.4/5 | — |
| 1 | E2B | Free plan | Yes | Web | No | 4.3/5 | |
| 2 |  Fiddler AI | Free plan | Yes | Web | No | 4.3/5 | |
| 3 |  Mastra | Free plan | Yes | Web | No | 4.3/5 | |
| 4 |  Galileo AI | Free plan | Yes | Web | No | 4.3/5 | |
| 5 |  FriendliAI | Free plan | Yes | Web | No | 4.3/5 | |
| 6 |  Alluxio | Free plan | Yes | Web | No | 4.2/5 | |
| 7 |  Not Diamond | Free plan | Yes | Web | No | 4.2/5 | |
| 8 |  Novita AI | Free plan | Yes | Web | No | 4.2/5 | |
| 9 |  Dapto | Free plan | Yes | Web | No | 4.2/5 | |
| 10 |  Zep | Free plan | Yes | Web | No | 4.2/5 | |
| 11 |  Tavily | Paid plans | No | Web | No | 4.2/5 | |
| 12 |  Browserbase | Free plan | Yes | Web | No | 4.4/5 | |
| 13 |  Daytona | Paid plans | No | Web | No | 4.1/5 | |
| 14 |  Cognee | Free plan | Yes | Web | No | 4.5/5 | vs Arthur |
| 15 |  AgentPrizm | Free plan | Yes | Web | No | 4.3/5 | |
| 16 |  Steel | Free plan | Yes | Web | No | 4.2/5 | |
| 17 |  Featherless | Paid plans | No | Web | No | 3.9/5 | |
| 18 |  Firecrawl | Free plan | Yes | Web | No | 4.4/5 | |
| 19 |  Langbase | Paid plans | No | Web | No | 3.9/5 | |
| 20 |  deepset | Free plan | Yes | Web | No | 4.3/5 |
Top 10 Arthur alternatives in detail
2. Fiddler AI
Fiddler AI · AI infrastructure tools · 4.3/5
AI observability platform to monitor, evaluate and govern machine learning models and LLM applications
Free plan
Free plan available
3. Mastra
Mastra · San Francisco · AI infrastructure tools · 4.3/5
TypeScript framework and cloud for building, deploying and observing AI agents.
Free plan
Free plan available
4. Galileo AI
Galileo AI · AI infrastructure tools · 4.3/5
AI evaluation and observability platform to test, monitor and protect generative AI apps and agents
Free plan
Free plan available
5. FriendliAI
FriendliAI Corp · Redwood City · AI infrastructure tools · 4.3/5
Inference cloud for deploying and scaling open-weight AI models in production with fast serving
Free plan
Free plan available
6. Alluxio
Alluxio · AI infrastructure tools · 4.2/5
Distributed data caching layer that speeds up large-scale AI and analytics workloads
Free plan
Free plan available
7. Not Diamond
Not Diamond, Inc · San Francisco · AI infrastructure tools · 4.2/5
AI model router that sends each request to the best LLM to cut costs while keeping output quality
Free plan
Free plan available
8. Novita AI
Novita AI · AI infrastructure tools · 4.2/5
AI cloud offering model APIs, agent sandboxes and GPU instances for developers and startups
Free plan
Free plan available
9. Dapto
Dapto · AI infrastructure tools · 4.2/5
AI governance and implementation platform for building, integrating and securing AI systems
Free plan
Free plan available
10. Zep
Zep AI, Inc · AI infrastructure tools · 4.2/5
Context and memory layer that gives AI agents business data, documents and history
Free plan
Free plan available
Arthur alternatives by what you need
How to choose a Arthur alternative
- Keep the model provider swappable. A gateway or abstraction layer costs little now and saves a rewrite when pricing or quality shifts.
- Instrument evaluation before you scale. Teams that ship without tracing cannot tell whether a prompt change helped or hurt.
- Model the unit economics at real volume. Token pricing that looks trivial in testing becomes the dominant cost at production traffic.
Arthur alternatives — FAQs
What is the best alternative to Arthur in 2026?+
The closest matches to Arthur on App Advisor are E2B (Free plan), Fiddler AI (Free plan), Mastra (Free plan). They are ranked by how closely their category, pricing model, platforms and target business size match Arthur, then by rating. The best choice depends on your team size and budget.
Is there a free alternative to Arthur?+
Yes. 16 of the 20 alternatives listed have a free plan or are free: E2B (Free plan), Fiddler AI (Free plan), Mastra (Free plan). Free plans usually cap users, records or transactions, so check the limits against your monthly volume.
Arthur vs E2B: which is better?+
E2B is the closest match to Arthur in our catalogue. Compare them side by side before you book a demo.
How were these Arthur alternatives chosen?+
Every product listed sits in ai infrastructure tools or a category Arthur also covers, and Arthur's own products are excluded. Prices, free plans and platforms come from each vendor's official website. App Advisor does not sell any of this software.
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Related alternatives
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