Rivet

Rivet is infrastructure for the agentic era, providing durable, stateful compute for AI agents and realtime applications. Its core primitive, Rivet Actors (RivetKit), is a runtime for long-lived processes that co-locate in-memory state with compute, support built-in WebSockets, workflows, queues, scheduling and cron, hibernate when idle, and scale from zero to thousands of instances across a global edge network. Rivet also ships agentOS, a lightweight WebAssembly-powered alternative to sandboxes for running coding agents, and Rivet Cloud, a managed serverless platform. RivetKit is open source (Apache-2.0), self-hostable on Postgres, the file system, or FoundationDB, with client SDKs for JavaScript, React, Rust, Swift and SwiftUI, a CLI, an OpenAPI-described gateway/inspector HTTP API and an AsyncAPI WebSocket protocol. Rivet is backed by Y Combinator and a16z Speedrun.

Rivet publishes 2 APIs on the APIs.io network: Actors API and Gateway API. Tagged areas include Company, Infrastructure, Actors, Stateful Compute, and AI Agents.

Rivet’s developer surface includes documentation, API reference, getting-started guide, engineering blog, changelog, pricing, signup flow, and 19 more developer resources.

🌐 Visit website 📡 Source on GitHub
42.8/100 thin ▬ flat Agent 65/100 agent native Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
2 APIs 1 MCP Servers
CompanyInfrastructureActorsStateful ComputeAI AgentsRealtimeServerlessEdgeWebSocketsDurable ExecutionDeveloper Tools

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 42.8/100 · thin
Contract Quality 8.0 / 25
Developer Ergonomics 16.1 / 20
Commercial Clarity 4.7 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 65/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 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/rivet: 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 2

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

Rivet Actors API

The Actors API from Rivet — 3 operation(s) for actors.

Rivet Gateway API

The Gateway API from Rivet — 12 operation(s) for gateway.

MCP Servers 1

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

rivet-mcp.yml

MCP SERVER

Security Posture 2

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

Rivet Authentication

bearer/custom-token · 2 schemes

SECURITY

Rivet Domain Security

TLSv1.3

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Rivet Agentic Access

24 operations · 10 acting

24 operations · 10 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp

Documentation 3

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference
 AsyncAPI
AsyncAPI

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 MCPServer
MCPServer
 AgentSkill
AgentSkill
 LLMsTxt
LLMsTxt

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Lifecycle
Lifecycle
 Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 Conformance
Conformance

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 SDKs
SDKs
 Packages
Packages
 CLI
CLI

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 4

Status, limits, changes, and where to get help

ChangeLog
ChangeLog
 StatusPage
StatusPage
 Support
Support
 ChangeLog
ChangeLog

Commercial 1

Pricing, plans, and the legal terms of use

Pricing
Pricing

Company 1

The organization behind the API

Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: rivet
name: Rivet
description: Rivet is infrastructure for the agentic era, providing durable, stateful compute for AI agents and realtime applications.
  Its core primitive, Rivet Actors (RivetKit), is a runtime for long-lived processes that co-locate in-memory state with compute,
  support built-in WebSockets, workflows, queues, scheduling and cron, hibernate when idle, and scale from zero to thousands
  of instances across a global edge network. Rivet also ships agentOS, a lightweight WebAssembly-powered alternative to sandboxes
  for running coding agents, and Rivet Cloud, a managed serverless platform. RivetKit is open source (Apache-2.0), self-hostable
  on Postgres, the file system, or FoundationDB, with client SDKs for JavaScript, React, Rust, Swift and SwiftUI, a CLI, an
  OpenAPI-described gateway/inspector HTTP API and an AsyncAPI WebSocket protocol. Rivet is backed by Y Combinator and a16z
  Speedrun.
url: https://raw.githubusercontent.com/api-evangelist/rivet/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
- lux-capital
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
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
image: https://rivet.dev/favicon.ico
tags:
- Company
- Infrastructure
- Actors
- Stateful Compute
- AI Agents
- Realtime
- Serverless
- Edge
- WebSockets
- Durable Execution
- Developer Tools
apis:
- aid: rivet:rivet-actors-api
  name: Rivet Actors API
  description: The Actors API from Rivet — 3 operation(s) for actors.
  humanURL: https://www.rivet.dev/docs
  baseURL: https://api.rivet.dev
  tags:
  - Actors
  properties:
  - type: OpenAPI
    url: openapi/rivet-actors-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/rivet-rivetkit-asyncapi.json
  - type: Documentation
    url: https://www.rivet.dev/docs
  - type: Authentication
    url: authentication/rivet-authentication.yml
  - type: ErrorCatalog
    url: errors/rivet-problem-types.yml
  - type: Conventions
    url: conventions/rivet-conventions.yml
- aid: rivet:rivet-gateway-api
  name: Rivet Gateway API
  description: The Gateway API from Rivet — 12 operation(s) for gateway.
  humanURL: https://www.rivet.dev/docs
  baseURL: https://api.rivet.dev
  tags:
  - Gateway
  properties:
  - type: OpenAPI
    url: openapi/rivet-gateway-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/rivet-rivetkit-asyncapi.json
  - type: Documentation
    url: https://www.rivet.dev/docs
  - type: Authentication
    url: authentication/rivet-authentication.yml
  - type: ErrorCatalog
    url: errors/rivet-problem-types.yml
  - type: Conventions
    url: conventions/rivet-conventions.yml
common:
- type: AgenticAccess
  url: agentic-access/rivet-agentic-access.yml
- type: DomainSecurity
  url: security/rivet-domain-security.yml
- type: DeveloperPortal
  url: https://www.rivet.dev/docs
- type: Documentation
  url: https://www.rivet.dev/docs
- type: APIReference
  url: https://www.rivet.dev/typedoc
- type: GettingStarted
  url: https://www.rivet.dev/docs/actors/quickstart
- type: GitHubOrganization
  url: https://github.com/rivet-dev
- type: Blog
  url: https://www.rivet.dev/blog
- type: ChangeLog
  url: https://www.rivet.dev/changelog
- type: StatusPage
  url: https://rivet.betteruptime.com/
- type: Pricing
  url: https://www.rivet.dev/cloud
- type: SignUp
  url: https://dashboard.rivet.dev
- type: Support
  url: https://www.rivet.dev/discord
- type: SDKs
  url: packages/rivet-packages.yml
- type: Packages
  url: packages/rivet-packages.yml
- type: CLI
  url: cli/rivet-cli.yml
- type: MCPServer
  url: mcp/rivet-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/rivet-llms.txt
- type: AsyncAPI
  url: asyncapi/rivet-rivetkit-asyncapi.json
- type: Lifecycle
  url: lifecycle/rivet-lifecycle.yml
- type: Conventions
  url: conventions/rivet-conventions.yml
- type: Authentication
  url: authentication/rivet-authentication.yml
- type: ErrorCatalog
  url: errors/rivet-problem-types.yml
- type: Conformance
  url: conformance/rivet-conformance.yml
- type: ChangeLog
  url: changelog/rivet-changelog.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 19
  pass: local-v1