Our take
Activeregular commits and releases- Releases more often than 93% of the projects we track
- Closes issues faster than 83% of the projects we track
- Merges more pull requests than 78% of the projects we track
Meridian is an actively maintained, multi-contributor bridge with useful client and monitoring support, but Antigravity remains a preview and inherits the limits of its CLI backend.
Good fit if
- You use Pi, OpenCode or another supported client and want access to Claude through a local API.
- You want a dashboard or optional Mac app alongside a headless service, and can run Node.js 22 or later.
- You want to experiment with Antigravity on the documented setup and accept its preview limitations.
Look elsewhere if
- You need Antigravity verified on Linux or Windows, or require unfinished capabilities such as active-task reattachment.
- You need exact output-token caps, numeric thinking budgets, sampling controls or every native media and reasoning feature.
- You need a provider integration that does not depend on an installed, signed-in CLI or its upstream behavior.
All health signals
| Last commit | 2026-10-08 (today) |
|---|---|
| Commits, last 90 days | 100+ |
| Releases, last 12 months | 100+ (latest meridian-v1.80.0, 2026-10-07) |
| Contributors | 54 (top contributor: 73% of commits) |
| Issues closed, last 90 days | 11+ (typically closed in 0 days) |
| Pull requests merged, last 90 days | 56 (typically merged in 0 days) |
| Project age | 9 months |
Checked on 2026-10-08 with the GitHub API.
Overview
Meridian lets supported coding clients send requests to Claude or Antigravity through a local API, using the account and subscription you have already signed in with. Claude runs through Anthropic’s Agent SDK; Antigravity uses Google’s official agy CLI. It is designed for people who want to use these providers from clients that do not connect to them directly.
The service also offers a browser dashboard for provider status, usage and request activity, plus an optional macOS app for managing the local service. Claude is the released backend. Antigravity is a preview, with documented platform and feature limitations.
Key Features
- Local API compatibility for Anthropic Messages, OpenAI Chat Completions and a documented subset of the Responses API.
- Connects clients including Pi and OpenCode to Claude and Antigravity using their respective signed-in provider paths.
- Claude support includes persistent sessions, prompt caching and multiple account profiles.
- Antigravity preview supports streaming, client-executed tools, conversation reuse and limited saved-answer recovery.
- Dashboard for provider status, quota windows, request history and usage activity.
- Optional Mac app for managing the service, versions, plugins and diagnostics.
- Deployment options include headless use, Docker and Nix.
Use Cases
- A Pi or OpenCode user wants to route coding requests through an existing Claude subscription rather than configure a separate provider integration.
- A developer wants to try Antigravity from a supported coding client, and is comfortable with its preview status and current platform verification limits.
- A team running a local coding service wants a browser dashboard to inspect provider status and recent request activity.
- A macOS user wants a desktop interface for managing Meridian’s local service while keeping it separate from the coding client.
What you need
Detected in the repository
- Node.js >=22 (from package.json)
- A Dockerfile, so it can run in a container; a Compose file sets up the related services
- Automated checks on GitHub Actions
Getting Started
Install Node.js 22 or later, sign in to Claude, then install and run Meridian:
npm install -g @rynfar/meridian
claude login
meridian
Open http://127.0.0.1:3456. See the README for client setup, configuration and Antigravity preview instructions.
License in Plain Words
No standard license was detected. Without a license, the default copyright rules apply: you may read the code, but not reuse it. Check the repository or ask the authors.
Alternatives
- OmniRoute: OmniRoute provides a configurable gateway for many model providers, while Meridian bridges Claude and Antigravity subscriptions to coding clients.
| Project | Language | License | Stars | Status |
|---|---|---|---|---|
| meridian | TypeScript | – | 2.1k | Active |
| OmniRoute | TypeScript | MIT | 72.7k | Active |
Considerations
- Antigravity is a preview, not a parity guarantee. The documented authenticated acceptance setup is macOS on Apple Silicon; Linux and Windows verification is unfinished.
- The Antigravity tool bridge allows the client to execute tools with its own permissions. Native browser or subagent access requires separate explicit grants.
- The README identifies unfinished active-task reattachment and automatic reconciliation of uncertain tool outcomes. Some provider-specific plugins, hosted-tool contracts and client versions still need adapters or acceptance tests.
- Meridian cannot provide controls or native capabilities that the upstream CLI does not expose. Upstream CLI failures can interrupt a turn, and saved state does not guarantee recovery of an unfinished action.
- The project is active, with regular commits and releases and contributions from dozens of people; contribution is not concentrated in one person. Recent issue and pull-request handling is reported, though the measured closure and merge counts are capped lower bounds.
- The README states that Meridian is MIT licensed. Review the repository’s license and any applicable provider terms before adopting it.
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