Volter World

Twins catalog

Find a twin for your app

Local services for your real SDKs. Browse a twin, choose a version, and run it in a World.

New to Worlds? Start here

  • Anthropic

    volter-ai
    Volter maintained

    Local Anthropic Messages, streaming and tool-use workflows. Replies use configured scenarios or labeled deterministic stubs; no model runs.

    v1.0.3Apache-2.0

  • Clerk

    volter-ai
    Volter maintained

    Local Clerk twin — a faithful, stateful local Clerk Backend API your real `@clerk/backend` SDK talks to unmodified. Users, sessions, orgs, real signed JWTs + a JWKS endpoint. Mirror, simulate, and fork. Built on @volter/world-core.

    v1.0.2Apache-2.0

  • Cloudflare

    volter-ai
    Volter maintained

    Local Cloudflare DNS, R2 and Worker deployment configuration. Worker programs are not executed; static asset behavior and API limits are documented in the README.

    v3.0.11Apache-2.0

  • GitHub

    volter-ai
    Volter maintained

    Local GitHub repository, issue, pull-request and git workflows over shared synthetic state. REST, GraphQL and Actions scope is documented in the README.

    v3.0.6Apache-2.0

  • Linear

    volter-ai
    Volter maintained

    Protocol 3 Linear twin for the official SDK viewer, team and issue workflow and the documented issue-filing integration.

    v3.0.4Apache-2.0

  • OpenAI

    volter-ai
    Volter maintained

    Local OpenAI Responses, Chat Completions and tool-use workflows. Replies use configured scenarios or labeled deterministic stubs; no model runs.

    v3.0.2Apache-2.0

  • Resend

    volter-ai
    Volter maintained

    Local Resend transactional email, delivery events, domains and inbox inspection. Delivery is simulated; no real email is sent.

    v1.0.1Apache-2.0

  • Slack

    volter-ai
    Volter maintained

    Local Slack twin — a faithful, stateful local Slack Web API your real Slack SDKs talk to unmodified, with its OAuth install, pages and incoming webhooks. Built on @volter/world-core.

    v3.0.5Apache-2.0

  • Stripe

    volter-ai
    Volter maintained

    Local Stripe customer, checkout and billing workflows with synthetic state and the real Stripe SDK. Supported operations and hosted-page limits are documented in the README.

    v3.0.2Apache-2.0

  • Supabase

    volter-ai
    Volter maintained

    Local Supabase twin: a project's Postgres database, the World's own managed Postgres, whose URL the twin hands the application; the Management API, PostgREST, Storage and Auth answer the gap. Built on @volter/world-core.

    v1.0.3Apache-2.0

  • Tavily

    volter-ai
    Volter maintained

    Browse published Tavily implementations.

    v1.0.1View releases

  • Upstash

    volter-ai
    Volter maintained

    Deterministic Upstash Redis over REST, rate-limit client calls, and QStash workflows; no live Upstash calls.

    v1.0.1Apache-2.0
How to use a twinPublish your own twinCatalog submissions
Catalog snapshot · @volter/twin-catalog@0.2.40
Source commit
d5e1ca0c5f6e42a42bb4f200b18ae71d47fb2345
Catalog digest
76bea00b2f4aaf3d30a87510a90aa2a202fe2ff9f1bb152d6a365e59bbb22e00
Installer integrity
sha512-IaGZGg//XzbHgU8WLcG+fGx3to5JIEWeoCvlXnAne2Eq+zorLz7SE4b5Fklgc7UqUcimF4debc3ESzgACMEnZg==

Snapshot identity and measurements