Stack Machine

StackMachine is elastic, headless infrastructure for AI applications and agents. It runs existing Node.js, Python, and PHP codebases as WebAssembly with sub-5ms cold starts and sandboxed execution for untrusted or AI-generated code, packing thousands of apps per server. The platform is driven by a single GraphQL API (api.stackmachine.com/graphql) plus official JavaScript and Python SDKs, exposing app deployment, custom domains and DNS, managed databases and volumes, cron jobs, secrets, transactional email, cloud storage, package publishing, SSH access, and usage metering. Backed by a16z.

Stack Machine publishes 1 API on the APIs.io network. Tagged areas include Company, Infrastructure, Serverless, WebAssembly, and Edge Compute.

Stack Machine’s developer surface includes documentation, API reference, getting-started guide, support, pricing, signup flow, authentication, and 20 more developer resources.

🌐 Visit website 📡 Source on GitHub
36.6/100 thin ▬ flat Agent 42/100 agent aware Full breakdown ↓
scored 2026-07-23 · rubric v0.5
AccessSelf serve
1 APIs 1 MCP Servers
CompanyInfrastructureServerlessWebAssemblyEdge ComputeAI ApplicationsGraphQLPlatform as a ServiceDeploymentHostingDNSDatabases

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-23 · rubric v0.5
Composite quality — 36.6/100 · thin
Contract Quality 0.0 / 25
Developer Ergonomics 15.7 / 20
Commercial Clarity 8.9 / 20
Operational Transparency 2.7 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 42/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 9 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
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/stack-machine: 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 1

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

StackMachine GraphQL API

Single GraphQL endpoint for deploying and managing StackMachine apps, custom domains and DNS, managed databases and volumes, cron jobs, secrets, transactional email, cloud stora...

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

stack-machine-mcp.yml

MCP SERVER

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Stack Machine Authentication

apiKey · 1 scheme

SECURITY

Stack Machine Domain Security

TLSv1.3

SECURITY

Resources

Get Started 5

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp
 Login
Login
 Sandbox
Sandbox

Documentation 3

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference
 GraphQL
GraphQL

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer
 AgentSkill
AgentSkill
 LLMsTxt
LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 Idempotency
Idempotency
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 DataModel
DataModel
 Conformance
Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 Packages
Packages
 SDKs
SDKs

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 2

Status, limits, changes, and where to get help

Support
Support
 ChangeLog
ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Source (apis.yml)

apis.yml Raw ↑ 
aid: stack-machine
name: Stack Machine
description: StackMachine is elastic, headless infrastructure for AI applications and agents. It runs existing Node.js, Python,
  and PHP codebases as WebAssembly with sub-5ms cold starts and sandboxed execution for untrusted or AI-generated code, packing
  thousands of apps per server. The platform is driven by a single GraphQL API (api.stackmachine.com/graphql) plus official
  JavaScript and Python SDKs, exposing app deployment, custom domains and DNS, managed databases and volumes, cron jobs, secrets,
  transactional email, cloud storage, package publishing, SSH access, and usage metering. Backed by a16z.
url: https://raw.githubusercontent.com/api-evangelist/stack-machine/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-tier: stub
x-tier-reason: portfolio-lead
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://www.stackmachine.com/opengraph-image.png
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Infrastructure
- Serverless
- WebAssembly
- Edge Compute
- AI Applications
- GraphQL
- Platform as a Service
- Deployment
- Hosting
- DNS
- Databases
apis:
- name: StackMachine GraphQL API
  description: Single GraphQL endpoint for deploying and managing StackMachine apps, custom domains and DNS, managed databases
    and volumes, cron jobs, secrets, transactional email, cloud storage, package publishing, SSH access, and usage metering.
    Relay-style schema (Node global IDs, cursor connections) with API-key authentication.
  humanURL: https://docs.stackmachine.com/
  baseURL: https://api.stackmachine.com/graphql
  tags:
  - GraphQL
  - Deployment
  - Infrastructure
  properties:
  - type: GraphQL
    url: graphql/stack-machine-schema.graphql
  - type: Documentation
    url: https://docs.stackmachine.com/
  - type: APIReference
    url: https://docs.stackmachine.com/
common:
- type: DomainSecurity
  url: security/stack-machine-domain-security.yml
- type: DeveloperPortal
  url: https://docs.stackmachine.com/
- type: Documentation
  url: https://docs.stackmachine.com/
- type: APIReference
  url: https://docs.stackmachine.com/
- type: GettingStarted
  url: https://docs.stackmachine.com/getting-started/installation
- type: GitHubOrganization
  url: https://github.com/stackmachine
- type: Support
  url: https://github.com/stackmachine/sdks/issues
- type: Pricing
  url: https://stackmachine.com/pricing
- type: SignUp
  url: https://dashboard.stackmachine.com/signup
- type: Login
  url: https://dashboard.stackmachine.com/signin
- type: TermsOfService
  url: https://stackmachine.com/terms
- type: PrivacyPolicy
  url: https://stackmachine.com/privacy
- type: GraphQL
  url: graphql/stack-machine-schema.graphql
- type: Packages
  url: packages/stack-machine-packages.yml
- type: SDKs
  url: packages/stack-machine-packages.yml
- type: Authentication
  url: authentication/stack-machine-authentication.yml
- type: Conventions
  url: conventions/stack-machine-conventions.yml
- type: Idempotency
  url: conventions/stack-machine-conventions.yml
- type: ErrorCatalog
  url: errors/stack-machine-error-codes.yml
- type: Lifecycle
  url: lifecycle/stack-machine-lifecycle.yml
- type: ChangeLog
  url: changelog/stack-machine-changelog.yml
- type: DataModel
  url: data-model/stack-machine-data-model.yml
- type: Conformance
  url: conformance/stack-machine-conformance.yml
- type: MCPServer
  url: mcp/stack-machine-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/stack-machine-llms.txt
- type: Sandbox
  url: sandbox/stack-machine-sandbox.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 18
  pass: local-v1
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io