Golem

Golem is an open-source durable computing platform for building agents and distributed applications that never lose state. You deploy WebAssembly components and invoke durable serverless workers through a REST API; the runtime transparently persists every worker's execution so it survives crashes, restarts, and redeploys. Golem ships as open source you self-host and as the managed Golem Cloud hosted service.

Golem publishes 4 APIs on the APIs.io network, including ApiDefinition API, Component API, Plugin API, and 1 more. Tagged areas include Durable Computing, Serverless, WebAssembly, Workers, and Agents.

The Golem catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Golem’s developer surface includes authentication, documentation, engineering blog, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

45.3/100 developing ▬ flat Agent 44/100 agent ready Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFreemiumSelf serve⚡ Free to try

4 APIs

Durable ComputingServerlessWebAssemblyWorkersAgents

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 45.3/100 · developing

Contract Quality 14.6 / 25

Developer Ergonomics 4.3 / 20

Commercial Clarity 7.9 / 20

Operational Transparency 4.8 / 13

Governance 6.3 / 12

Discoverability 7.4 / 10

Agent readiness — 44/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/golem-cloud: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 4

Individual APIs this provider publishes, each with its own machine-readable definition.

Rate Limits 1

Documented rate limits and quota policies.

Golem Cloud Rate Limits

4 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: golem-cloud
url: https://raw.githubusercontent.com/api-evangelist/golem-cloud/refs/heads/main/apis.yml
name: Golem
kind: company
description: Golem is an open-source durable computing platform for building agents and distributed applications that never
  lose state. You deploy WebAssembly components and invoke durable serverless workers through a REST API; the runtime transparently
  persists every worker's execution so it survives crashes, restarts, and redeploys. Golem ships as open source you self-host
  and as the managed Golem Cloud hosted service.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/golem-cloud.png
tags:
- Durable Computing
- Serverless
- WebAssembly
- Workers
- Agents
created: '2026-06-20'
modified: '2026-06-20'
specificationVersion: '0.19'
apis:
- aid: golem-cloud:golem-cloud-apidefinition-api
  name: Golem ApiDefinition API
  description: Custom HTTP API definitions and deployments (Worker Gateway).
  humanURL: https://learn.golem.cloud/concepts/components
  baseURL: https://release.api.golem.cloud
  tags:
  - ApiDefinition
  properties:
  - type: OpenAPI
    url: openapi/golem-cloud-apidefinition-api-openapi.yml
  - type: Documentation
    url: https://learn.golem.cloud/concepts/components
  - type: APIReference
    url: https://learn.golem.cloud/rest-api/component
  - type: PostmanCollection
    url: collections/golem-cloud.postman_collection.json
  - type: OpenCollection
    url: collections/golem-cloud.opencollection.json
  - type: GitHub
    url: https://github.com/golemcloud/golem
  - type: Documentation
    url: https://learn.golem.cloud/concepts/workers
  - type: APIReference
    url: https://learn.golem.cloud/rest-api/worker
  - type: AsyncAPI
    url: asyncapi/golem-cloud-asyncapi.yml
  - type: Documentation
    url: https://learn.golem.cloud/invoke/making-custom-apis
  - type: APIReference
    url: https://learn.golem.cloud/rest-api/api-deployment
  - type: Documentation
    url: https://learn.golem.cloud/concepts/plugins
  - type: APIReference
    url: https://learn.golem.cloud/rest-api/plugin
- aid: golem-cloud:golem-cloud-component-api
  name: Golem Component API
  description: WebAssembly component registry operations.
  humanURL: https://learn.golem.cloud/concepts/components
  baseURL: https://release.api.golem.cloud
  tags:
  - Component
  properties:
  - type: OpenAPI
    url: openapi/golem-cloud-component-api-openapi.yml
  - type: Documentation
    url: https://learn.golem.cloud/concepts/components
  - type: APIReference
    url: https://learn.golem.cloud/rest-api/component
  - type: PostmanCollection
    url: collections/golem-cloud.postman_collection.json
  - type: OpenCollection
    url: collections/golem-cloud.opencollection.json
  - type: GitHub
    url: https://github.com/golemcloud/golem
  - type: Documentation
    url: https://learn.golem.cloud/concepts/workers
  - type: APIReference
    url: https://learn.golem.cloud/rest-api/worker
  - type: AsyncAPI
    url: asyncapi/golem-cloud-asyncapi.yml
  - type: Documentation
    url: https://learn.golem.cloud/invoke/making-custom-apis
  - type: APIReference
    url: https://learn.golem.cloud/rest-api/api-deployment
  - type: Documentation
    url: https://learn.golem.cloud/concepts/plugins
  - type: APIReference
    url: https://learn.golem.cloud/rest-api/plugin
- aid: golem-cloud:golem-cloud-plugin-api
  name: Golem Plugin API
  description: Plugin registration and grants.
  humanURL: https://learn.golem.cloud/concepts/components
  baseURL: https://release.api.golem.cloud
  tags:
  - Plugin
  properties:
  - type: OpenAPI
    url: openapi/golem-cloud-plugin-api-openapi.yml
  - type: Documentation
    url: https://learn.golem.cloud/concepts/components
  - type: APIReference
    url: https://learn.golem.cloud/rest-api/component
  - type: PostmanCollection
    url: collections/golem-cloud.postman_collection.json
  - type: OpenCollection
    url: collections/golem-cloud.opencollection.json
  - type: GitHub
    url: https://github.com/golemcloud/golem
  - type: Documentation
    url: https://learn.golem.cloud/concepts/workers
  - type: APIReference
    url: https://learn.golem.cloud/rest-api/worker
  - type: AsyncAPI
    url: asyncapi/golem-cloud-asyncapi.yml
  - type: Documentation
    url: https://learn.golem.cloud/invoke/making-custom-apis
  - type: APIReference
    url: https://learn.golem.cloud/rest-api/api-deployment
  - type: Documentation
    url: https://learn.golem.cloud/concepts/plugins
  - type: APIReference
    url: https://learn.golem.cloud/rest-api/plugin
- aid: golem-cloud:golem-cloud-worker-api
  name: Golem Worker API
  description: Durable worker lifecycle and invocation operations.
  humanURL: https://learn.golem.cloud/concepts/components
  baseURL: https://release.api.golem.cloud
  tags:
  - Worker
  properties:
  - type: OpenAPI
    url: openapi/golem-cloud-worker-api-openapi.yml
  - type: Documentation
    url: https://learn.golem.cloud/concepts/components
  - type: APIReference
    url: https://learn.golem.cloud/rest-api/component
  - type: PostmanCollection
    url: collections/golem-cloud.postman_collection.json
  - type: OpenCollection
    url: collections/golem-cloud.opencollection.json
  - type: GitHub
    url: https://github.com/golemcloud/golem
  - type: Documentation
    url: https://learn.golem.cloud/concepts/workers
  - type: APIReference
    url: https://learn.golem.cloud/rest-api/worker
  - type: AsyncAPI
    url: asyncapi/golem-cloud-asyncapi.yml
  - type: Documentation
    url: https://learn.golem.cloud/invoke/making-custom-apis
  - type: APIReference
    url: https://learn.golem.cloud/rest-api/api-deployment
  - type: Documentation
    url: https://learn.golem.cloud/concepts/plugins
  - type: APIReference
    url: https://learn.golem.cloud/rest-api/plugin
common:
- type: AgenticAccess
  url: agentic-access/golem-cloud-agentic-access.yml
- type: DomainSecurity
  url: security/golem-cloud-domain-security.yml
- type: Authentication
  url: authentication/golem-cloud-authentication.yml
- type: GitHubOrganization
  url: https://github.com/golemcloud
- type: LinkedIn
  url: https://www.linkedin.com/company/golem-cloud
- type: Website
  url: https://www.golem.cloud
- type: Documentation
  url: https://learn.golem.cloud
- type: Plans
  url: plans/golem-cloud-plans-pricing.yml
- type: RateLimits
  url: rate-limits/golem-cloud-rate-limits.yml
- type: FinOps
  url: finops/golem-cloud-finops.yml
- url: https://www.golem.cloud/rss.xml
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Golem

Kin Score

APIs 4

Golem ApiDefinition API

Golem Component API

Golem Plugin API

Golem Worker API

Open Collections 1

Golem Cloud API

Pricing Plans 1

Golem Cloud Plans Pricing

Rate Limits 1

Golem Cloud Rate Limits

FinOps 1

Golem Cloud Finops

Event Specifications 1

Golem Worker Connect (WebSocket) API

Spectral Rules 1

Golem API Rules

Security Posture 2

Golem Cloud Authentication

Golem Cloud Domain Security

Agentic Access 1

Golem Cloud Agentic Access

Resources