Riza

What Riza does

Riza provides secure code execution infrastructure purpose-built for AI applications whose large language models generate code that must run safely. The company addresses a specific problem: LLMs can write code but cannot safely execute it without risking production systems and credentials. Riza's core offering is a Code Interpreter API that executes Python, JavaScript, TypeScript, Ruby, and PHP code inside isolated WebAssembly sandboxes, with each execution starting in under 10 milliseconds and no cold-start latency. The platform is extended by custom runtimes supporting third-party Python/JavaScript packages, a Secrets Management module, a Tools API for versioned reusable functions, SDKs for Python, TypeScript, Go, and Node.js, an API Playground, and a self-hosted Kubernetes deployment option for enterprise customers requiring on-prem infrastructure.

Riza operates a developer-focused, product-led go-to-market model. Customers self-serve sign up via dashboard.riza.io to obtain an API key, with a free tier available and usage-based pricing beyond free limits. The company takes a horizontal segmentation approach, serving AI-native companies across use cases including data analysis and visualization, agent code execution, data extraction and transformation, user-generated code execution, and code-generation evaluations. Riza has integrated natively with the major LLM platforms — Anthropic Claude, OpenAI, Google Gemini, Mistral, and Groq — and with agent frameworks LangGraph and PydanticAI, giving it broad ecosystem reach. The company claims billions of code executions per month for AI-native customers, with named customers including Hyperscout (running Python millions of times per day) and PromptLayer.

Riza was founded as Riza, Inc., a California-domiciled C-corp headquartered in San Francisco. The company has raised a $2.7 million seed round in April 2025 led by Matrix Partners, with 43 angel investors participating, and operates with 1–10 employees. Revenue is not publicly disclosed. A significant strategic event surfaced in product documentation: the hosted Code Interpreter API is being shut down on October 1, 2025, signaling a commercial pivot toward the self-hosted deployment model as the primary revenue vehicle. Note: source data contains a conflict on founding year — firmographics list 2024 while company-history materials reference 2015; the firmographic date is used here.

Name

Riza

Legal name

Riza, Inc.

Website

https://riza.io

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

1–10 employees

Short description

Riza provides secure WebAssembly-based code execution infrastructure that lets LLM-powered AI applications safely run generated Python, JavaScript, TypeScript, Ruby, and PHP code at sub-10ms latency. It serves AI-native companies via usage-based API pricing and self-hosted enterprise deployment.

Ownership category

akta.pro rank

Product category

AI Code Execution Infrastructure

NAICS

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182)

SIC

Services-Computer Programming, Data Processing, Etc. (7370), Services-Computer Programming Services (7371)

akta.pro primary industry

Secure Model Deployment & Runtime Protection (sandboxing, isolation) (HDAAAKAH)

akta.pro secondary industries

Identity, Access & Secrets Management for AI Systems (IAM for agents/models) (HDAAAKAJ), Web Application Security (WAF, RASP) (HDADACAA)

Keywords

• AI code execution
• Secure code sandbox
• LLM code interpreter
• WebAssembly runtime
• AI agent infrastructure

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Infrastructure, Personnel, Marketing or Sales, Operations

Revenue model

1. API Usage-Based Pricing: Charges based on code execution volume. Supports free tier for initial usage with pay-as-you-go scaling beyond free limits.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels7 records

Core offering

Riza provides a secure, isolated code execution API that allows AI applications and LLMs to safely run code they generate. The WebAssembly-based sandbox supports Python, JavaScript, TypeScript, Ruby, and PHP, with sub-10ms execution latency, custom runtimes for third-party packages, secrets management, and a Tools API for reusable code functions.

Product overview

Riza is a code execution platform for AI applications that provides secure, isolated code execution via REST API. The core product is the Code Interpreter API, which allows LLMs to safely execute Python, JavaScript, TypeScript, Ruby, and PHP code in WebAssembly sandboxes. Additional offerings include Self-hosted Riza for on-premises deployment, Custom Runtimes for adding third-party package dependencies, Secrets Management for secure credential injection, and Tools API for creating reusable versioned code functions. The platform includes a Dashboard for project management, an API Playground for testing, and official client libraries (SDKs) for Python, TypeScript, Go, and Node.js.

Differentiator

Problem solved

Functional benefit

Products and services

• Riza Code Interpreter API RESTful API that allows AI applications to safely execute Python, JavaScript, TypeScript, Ruby, and PHP code in a secure WebAssembly sandbox. Execution begins in under 10ms with no cold starts. Designed for AI-native companies building LLM-powered applications that need to run generated code safely.
• Self-hosted Riza Self-hosted deployment of the Riza Code Interpreter distributed as a stateless, horizontally scalable Docker container or Kubernetes service. Targets enterprises with security, compliance, or performance requirements that prevent use of the hosted cloud offering. Requires a license key obtained via sales contact.

Quantifiable outcome

• Billions of code executions per month for AI-native companies
• +2 more outcomes

Named customers2 records

Segments1 record

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration8 records

AI capability4 records

Feature6 records

Partnerships

One partnership is on record.

• AnthropiccoreTechnology or IntegrationNative integration with Anthropic Claude models via tool use API. Riza's Code Interpreter serves as a tool that Claude can call to execute code safely. Comprehensive documentation and examples provided for Claude tool-use implementations.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Emerging players

• Anyscale: Anyscale (built on Ray) provides scalable compute infrastructure for AI applications, with overlap in running LLM-generated or agent code at scale against managed infrastructure.
• Together AI: Together AI operates AI-focused cloud infrastructure (inference and execution) and overlaps with Riza on enabling AI-native companies to deploy and run code-driven AI workflows reliably.

Others

• Vercel: Vercel provides serverless edge compute and developer infrastructure for AI-augmented apps; while not a direct sandbox competitor, it sits in the same developer-infrastructure category as Riza and competes for AI app budgets.

Direct peers

• Modal: Modal offers serverless compute infrastructure optimized for AI workloads, including running untrusted or LLM-generated code, with a similar PLG developer experience and Python-first SDK.
• E2B: E2B provides secure, sandboxed code execution environments purpose-built for AI agents and LLM tool use — the closest direct competitor to Riza, with comparable multi-language interpreters and developer-first APIs.
• CodeSandbox: CodeSandbox offers cloud-hosted, isolated code execution sandboxes (SDK and remote VM APIs) for running arbitrary code, directly overlapping with Riza's secure interpreter platform for AI-generated code.
• Replit: Replit provides hosted, sandboxed code execution across multiple languages with an API/IDE product; it overlaps with Riza on secure multi-language interpreter-as-a-service for AI and developer use cases.

Broad incumbents

• Fly.io: Fly.io runs customer code in lightweight, isolated Firecracker microVMs globally; its developer-focused compute platform competes with Riza for AI workloads needing secure, low-latency execution.
• Cloudflare Workers: Cloudflare Workers and its V8 isolates provide secure, low-latency sandboxed code execution at the edge — a broad incumbent in the runtime/sandbox category that overlaps with Riza's isolation and performance story.
• OpenAI Code Interpreter: OpenAI's built-in Code Interpreter / Advanced Data Analysis tool gives ChatGPT users a native sandboxed execution environment, representing a first-party alternative that can absorb demand for third-party interpreters like Riza.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/rizaio
• GitHubgithub.com/riza-io
• YouTubeyoutube.com/@Riza-Inc
• LinkedInlinkedin.com/company/riza-inc

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds1 record

Investors2 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Riza