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Upstream

Official registry AI and agents

Is this AI/dev API down? Is this model deprecated, what replaces it? Live status for ~40 APIs.

Source code Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http upstream 'https://upstream.toolweather.workers.dev/mcp' --header 'X-API-Key: <Optional free key (POST https://upstream.toolweather.workers.dev/v1/keys) for 500 free calls/day; 50/day without one>'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "upstream": {
            "type": "http",
            "url": "https://upstream.toolweather.workers.dev/mcp",
            "headers": {
                "X-API-Key": "<Optional free key (POST https://upstream.toolweather.workers.dev/v1/keys) for 500 free calls/day; 50/day without one>"
            }
        }
    }
}

Frequently asked questions

What is Upstream?

Is this AI/dev API down? Is this model deprecated, what replaces it? Live status for ~40 APIs.

How do I install Upstream?

It runs as a remote server. In Claude Code: claude mcp add --transport http upstream 'https://upstream.toolweather.workers.dev/mcp' --header 'X-API-Key: <Optional free key (POST https://upstream.toolweather.workers.dev/v1/keys) for 500 free calls/day; 50/day without one>'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Upstream need an API key?

Yes. It expects X-API-Key, which you set in its configuration.

Is Upstream open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains Upstream?

It is published by toolweather. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.