Alternatives · 2026
Best Hopx Alternatives in 2026
24 alternatives · 19 with a free plan · Updated
What are the best Hopx alternatives?
The best Hopx alternatives for AI Agent in 2026 are Agent Sandbox (sandboxed code execution API, free), YepCode (developer platform for building, enterprise) and Pig (API and SDK, free). 19 of the 24 listed alternatives have a free or freemium plan.
Looking for something other than Hopx? Below are 24 alternatives in AI Agent, AI API and AI Developer Tools, all closely matched, ranked by how much they overlap with Hopx. Hopx itself is free. Each entry shows what the tool does, what it shares with Hopx, its key features and pricing.
What is Hopx?
Say an AI agent writes a Python script and you need to run it without trusting it. Hopx is a sandbox platform that spins up Linux micro-VMs for exactly that: running untrusted code and hosting AI agents. Each VM is a Firecracker microVM, so code runs behind hardware-level security with kernel isolation.
- Pricing
- Free
Key features of Hopx
- Near-instant cold starts (~100ms) for Linux micro-VMs
- Hardware-level security and kernel isolation (Firecracker microVMs)
- Full state persistence for agents
- Comprehensive SDKs for multiple popular programming languages
- Elastic compute that scales up in milliseconds and down to zero automatically
Hopx alternatives compared
| Tool | Pricing | Shared with Hopx | Match |
|---|---|---|---|
| Hopx | Free | — | Original |
| Agent Sandbox | Free | AI Agent, AI API, AI Developer Tools | Strong match |
| YepCode | Enterprise | AI Agent, AI API, AI Developer Tools, AI Workflow | Strong match |
| Pig | Free | AI Agent, AI API, AI Developer Tools, AI Workflow | Strong match |
| Julep AI | Free | AI Agent, AI API, AI Developer Tools, AI Workflow | Strong match |
| Team9 | Free | AI Agent, AI Developer Tools, AI Workflow | Strong match |
Top 24 alternatives to Hopx
- #1
Sandboxed code execution API that gives AI agents a secure compute environment, file storage, and downloadable outputs like charts and PDFs.
In common with Hopx: AI Agent, AI API, AI Developer Tools
- Secure code execution API providing AI agents with sandboxed compute and storage
Pricing: free
- #2
YepCode is a developer platform for building, running, and scheduling AI agent integrations in secure serverless environments.
In common with Hopx: AI Agent, AI API, AI Developer Tools, AI Workflow
- Developer-first platform for building
Pricing: custom quote
- #3
Pig is an API and SDK that lets AI agents launch and automate Windows apps with clicks and keystrokes.
In common with Hopx: AI Agent, AI API, AI Developer Tools, AI Workflow
Pricing: free
- #4
AI workflow API for building, deploying and scaling multi-step AI pipelines, with automatic fault tolerance and built-in state management.
In common with Hopx: AI Agent, AI API, AI Developer Tools, AI Workflow
- Rapid deployment of AI pipelines
- Seamless integration with existing stacks and AI models
- Ability to build complex
Pricing: free
- #5
Team9 deploys local-first AI agents on your own Mac, Linux, or VPS, with persistent memory and scheduled jobs.
In common with Hopx: AI Agent, AI Developer Tools, AI Workflow
- Ensures Data Sovereignty and privacy by running local-first on user infrastructure
- Instant
- Offers persistent operation
Pricing: free
- #6
Unbody is a headless AI stack for building AI websites and apps, with databases, RAG, chatbots, and vector storage behind one GraphQL endpoint.
In common with Hopx: AI Agent, AI API, AI Developer Tools
Pricing: free
- #7
Disco.dev lets you spin up, test, and remix open-source MCP servers for AI agents without coding or server setup.
In common with Hopx: AI Agent, AI API, AI Developer Tools, AI Workflow
- It allows browsing integrations and connecting to AI clients like Claude and VSCode
Pricing: free
- #8
Monoid turns existing APIs into AI agents that let large language models pull in context and take actions for users.
In common with Hopx: AI Agent, AI API, AI Workflow
- Enhances LLMs' ability to get relevant context
- Enables LLMs to act on users' behalf
- Simplifies the creation of AI Agents from APIs
Pricing: free
- #9
Continual is an operational AI platform for the modern data stack that builds predictive models and AI agents that keep improving on business data.
In common with Hopx: AI Agent, AI API, AI Workflow
Pricing: free
- #10
Cloud sandboxes that let AI agents run code securely, with MCP integration, persistent memory, and SOC2 and GDPR compliance.
In common with Hopx: AI Agent, AI Developer Tools, AI Workflow
- Runs AI Agents Reliably
- At Scale
- Offers first MCP-Integrated Cloud Sandboxes for secure code execution
Pricing: custom quote
- #11
Substrate is a platform for building compound AI systems from connected nodes, with vector storage, a code interpreter and agentic control flow.
In common with Hopx: AI Agent, AI API, AI Developer Tools, AI Workflow
Pricing: free
- #12
Credal is an enterprise AI agent platform and AI search tool that keeps company data secure, with audit logs and PII redaction.
In common with Hopx: AI Agent, AI API, AI Developer Tools, AI Workflow
Pricing: custom quote
- #13
Vapi is a developer platform for building, testing, and deploying voice AI agents, with a configurable API and 40+ app integrations.
In common with Hopx: AI Agent, AI API, AI Developer Tools, AI Workflow
- Developer-friendly API
- Configurable and scalable
- Integrates with 40+ apps
Pricing: custom quote
- #14
MCP Playground is an AI workflow tool for testing, debugging, and connecting MCP servers, with secure internal document search.
In common with Hopx: AI Agent, AI API, AI Developer Tools, AI Workflow
- Offers flexible deployment options (on-computer
- Focuses on data security and compliance (SOC 2
- HIPAA
Pricing: free
- #15
Workik AI is a development platform with an AI code generator, code review, and SQL query builder for teams writing software.
In common with Hopx: AI Agent, AI API, AI Developer Tools, AI Workflow
- AI-powered development platform for code generation and team collaboration
Pricing: free plan, paid plans from $15
- #16
Autonomy AI is an AI agent for frontend development that writes code within your existing codebase and design system.
In common with Hopx: AI Agent, AI Developer Tools, AI Workflow
- It accelerates development
- It iterates on its own
Pricing: free
- #17
Enterprise multi-tenant MCP server that connects AI agents to many tools, with separate data per customer and managed hosting.
In common with Hopx: AI Agent, AI API, AI Developer Tools, AI Workflow
- Built-in
- Comprehensive enterprise authentication and authorization capabilities
- Enhanced security and data privacy
Pricing: custom quote
- #18
Fleak is a serverless API builder for AI workflows that lets data teams connect integrations and publish them as APIs.
In common with Hopx: AI Agent, AI API, AI Developer Tools, AI Workflow
Pricing: free
- #19
SmythOS is a no-code AI agent builder for creating and deploying automated AI agents and workflows without writing code.
In common with Hopx: AI Agent, AI API, AI Workflow
- Rapid AI agent development and deployment
- Wide range of integrations
- Scalable pricing
Pricing: free
- #20
OnDemand is an AI platform for developers to integrate AI agents, RAG-based AI and workflows into existing systems, with predefined models.
In common with Hopx: AI Agent, AI API, AI Developer Tools, AI Workflow
Pricing: free
- #21
Payment infrastructure that lets AI agents make secure purchases online using tokenized cards, with user approval through biometrics.
In common with Hopx: AI Agent, AI API, AI Developer Tools
- Payment infrastructure for AI agents to make secure
Pricing: free
- #22
APIDNA uses autonomous AI agents to automate API integration tasks between software tools, a no-code option for teams.
In common with Hopx: AI Agent, AI API, AI Developer Tools, AI Workflow
- Simplified Integration Process
- Customizable Workflows
- Adaptive AI Learning
Pricing: free
- #23D
AI API regression testing tool that generates test cases and runs them in CI/CD pipelines to catch breaking changes before release.
In common with Hopx: AI Agent, AI API, AI Developer Tools, AI Workflow
- It integrates seamlessly into CI/CD pipelines for crash-free deployments
Pricing: free
- #24
API and SDK that lets AI agents pause and ask a human for approval or help, with replies sent through Slack, email, or Discord.
In common with Hopx: AI Agent, AI API, AI Developer Tools, AI Workflow
- Works with all popular frameworks
- Send to Slack
Pricing: free
How we picked these Hopx alternatives
We rank tools by how closely they match Hopx: tools that share more of its categories rank first, then tools whose main category, tags and description overlap with it, then community votes and views. Pricing type and features come from each product's SoftwareVital listing. Admins can pin or remove tools from this list.
Frequently asked questions
What are the best alternatives to Hopx in 2026?
The closest alternatives to Hopx are Agent Sandbox, YepCode, Pig, Julep AI and Team9. They are ranked by how many categories and tags they share with Hopx and how similar their descriptions are, then by community votes and views on SoftwareVital.
What is the closest alternative to Hopx?
Agent Sandbox is the closest match because it shares AI Agent, AI API and AI Developer Tools with Hopx. It is free.
Are there free alternatives to Hopx?
Yes. 19 of the 24 alternatives have a free or freemium plan, including Agent Sandbox (free), Pig (free), Julep AI (free), Team9 (free) and Unbody (free). Hopx is free.
Which Hopx alternatives are paid or enterprise tools?
YepCode (enterprise), AgentSphere (enterprise), Credal (enterprise), Vapi (enterprise) and Fastn UCL (enterprise) use paid or enterprise pricing, which usually means more support and admin options for teams.
How does Hopx compare to Agent Sandbox?
Agent Sandbox overlaps with Hopx in AI Agent, AI API and AI Developer Tools. Its listed features include secure code execution API providing AI agents with sandboxed compute and storage. Pricing: free. Open the side-by-side compare page for a full breakdown.
What category is Hopx in?
Hopx is listed under AI Agent on SoftwareVital. Browse that category to see more tools in the same group.