What Golem Cloud does

Golem Cloud, Inc. is a privately held Delaware-incorporated software company founded in March 2023 by John A. De Goes (creator of the ZIO open-source effect system) and Daniel Vigovszky, with Adam Fraser as CTO. The company builds an open-source durable agent runtime written in Rust that executes WebAssembly (WASM) programs with automatic state persistence, exactly-once execution semantics, capability-based sandboxing, and zero idle resource cost for suspended agents. Multi-language SDKs are offered for TypeScript, Rust, Scala (ZIO-integrated), and MoonBit, alongside a CLI and REPL, with the managed Golem Cloud service currently in free Developer Preview and paid general availability planned for Q3 2026.

The platform is purpose-built for AI agent workloads — every agent runs in its own WASM sandbox with explicit tool, network, and file grants, and agents are automatically exposed as MCP servers with built-in OpenTelemetry tracing. Native integrations are tested with OpenAI, Anthropic, Vercel AI SDK, TanStack AI, and Effect AI SDKs. Competitive positioning is direct against AI agent frameworks (LangChain) and durable execution platforms (Temporal), with Golem arguing that framework-level durability is opt-in and coarse, whereas Golem delivers runtime-level guarantees including tenant isolation, fine-grained durability, and policy enforcement.

The business model is product-led growth: the runtime is freely downloadable from GitHub under BUSL-1.1 (transitioning to Apache 2.0), with self-host supported on Docker, Kubernetes, any cloud, or on-prem; the managed Golem Cloud service is free during Developer Preview and will move to a paid subscription with formal SLAs, SOC 2, ISO 27001, and HIPAA coverage at Q3 2026 GA. The company is bootstrapped with no disclosed external funding rounds, operates with 1–10 globally distributed employees, and its visible customer base consists of five early-stage startup design partners (Golem Social, WarpMind, Seeta AI Assistant, JournAI, Johnethel LMS).

Name

Golem Cloud

Legal name

Golem Cloud, Inc.

Website

https://golem.cloud

Company type

Private

Founded year

2023

Operating status

Operating

Headcount range

1–10 employees

Short description

Golem Cloud builds an open-source, WebAssembly-based durable agent runtime that automatically persists state and executes every tool call exactly once for AI agent developers. It serves developers building production AI agents in TypeScript, Rust, Scala, and MoonBit via a self-serve, open-source-led go-to-market model.

Ownership category

akta.pro rank

Product category

Agent Runtime Platform

NAICS

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182), Computer Facilities Management Services (541513)

SIC

Services-Prepackaged Software (7372)

akta.pro primary industry

Data Security & Privacy for Cloud (DLP, DSPM, Tokenization) (HDABAHAK)

akta.pro secondary industries

DevSecOps, Cloud Security Automation & Policy-as-Code (HDABAHAM), Cloud Managed Services (Operations, Monitoring, Patching) (BPAEACAF)

Keywords

• Durable agent runtime
• WebAssembly execution platform
• AI agent infrastructure
• Cloud developer platform
• Open source SDK tools

Headquarters

HQ city

New York

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Open Source Runtime: Golem runtime is open-source under BUSL-1.1, transitioning to Apache 2.0. Free to download and self-host.
2. Golem Cloud Managed Service: Managed cloud service at console.golem.cloud currently in free Developer Preview with no SLAs. Paid version with formal SLAs, data-retention guarantees, and support planned for Q3 2026 general availability.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

Golem Cloud provides a durable agent runtime that automatically persists agent state, executes every tool call exactly once through any interruption, and enforces policies via WASM sandboxing. The offering consists of the open-source Golem Runtime (Rust-based WASM executor licensed under BUSL-1.1 transitioning to Apache 2.0) and the managed Golem Cloud service currently in free Developer Preview, supported by SDKs for TypeScript, Rust, Scala, and MoonBit.

Product overview

Golem Cloud is a durable agent runtime platform consisting of two main offerings: the open-source Golem Runtime (under BUSL-1.1 license transitioning to Apache-2.0) and the managed Golem Cloud service (currently in Developer Preview, with GA planned for Q3 2026). The platform provides multi-language SDKs for TypeScript, Rust, Scala, and MoonBit, along with a CLI and REPL for development. Key built-in features include automatic MCP server generation, OpenTelemetry tracing, webhook primitives, scheduled execution, sandboxed WASM execution, and first-class quotas. The Golem Runtime serves as the core execution engine while Golem Cloud provides the managed deployment platform.

Differentiator

Problem solved

Functional benefit

Products and services

• Golem Runtime Open-source durable agent runtime written in Rust that executes WebAssembly programs with automatic state persistence, exactly-once transactional tool execution, and capability-based sandboxed policy enforcement. Licensed under BUSL-1.1 transitioning to Apache 2.0 and distributed via GitHub.
• Golem Cloud Managed cloud service for deploying durable agents on Golem Runtime without self-infrastructure management, accessible at console.golem.cloud. Currently offered as a free Developer Preview without SLAs or data-retention guarantees.

Quantifiable outcome

• 10,000+ active agents per node with 2ms cold start and zero idle cost
• +2 more outcomes

Named customers5 records

Segments1 record

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration6 records

AI capability4 records

Feature9 records

Partnerships

One partnership is on record.

• ZIOcoreStrategic or Co-development PartnerZIO is the open-source effect system created by Golem founder John A. De Goes, which has been running in production at companies across fintech, ad tech, and AI infrastructure for a decade. Golem builds on ZIO Flow's resilient-workflow ideas beyond the JVM.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Emerging players

• Trigger.dev: Trigger.dev provides a background jobs and durable workflow platform for developers with TypeScript-first APIs and AI agent support, adjacent to Golem's durable agent runtime offering.
• Modal Labs: Modal provides a serverless compute platform optimized for AI/ML workloads with on-demand scaling and code-first deployment, overlapping with Golem's developer-experience-focused cloud for AI applications.
• Fermyon: Fermyon offers a WebAssembly-based serverless platform (Spin and Fermyon Cloud) targeting similar developer audiences that want fast, sandboxed execution for distributed applications.

Direct peers

• LangChain: LangChain is the most widely used AI agent framework and is explicitly called out by Golem as the framework whose durability and isolation gaps its runtime solves; both target AI agent developers.
• Temporal Technologies: Temporal is the leading durable-execution platform, offering fault-tolerant workflow orchestration that Golem explicitly identifies as its primary competitor in the broader durable execution category before the May 2025 AI-agent pivot.
• Inngest: Inngest provides a durable function-as-a-service platform with event-driven workflows, retries, and step functions for AI agents and background jobs, directly comparable to Golem's durable agent execution model.
• Restate: Restate is a lightweight durable execution platform offering resilient workflows, virtual objects, and exactly-once semantics — a head-to-head technical competitor to Golem's WASM-based durable runtime.

Broad incumbents

• Azure Durable Functions: Azure Durable Functions provides stateful, long-running serverless workflows inside the Azure cloud, competing with Golem for durable AI-agent and workflow workloads but tightly coupled to the Azure stack.
• AWS Step Functions: AWS Step Functions is a managed durable workflow service deeply integrated with the AWS ecosystem; it serves the same durable execution use case as Golem but as part of a much broader cloud platform.
• Cloudflare Workers: Cloudflare Workers is a globally distributed serverless platform with V8 isolates supporting WASM; it competes with Golem for edge/serverless agent execution workloads at much larger scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights6 records

Customer concentration

• Xx.com/GolemCloud
• GitHubgithub.com/golemcloud/golem

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds

Investors

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 Golem Cloud