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Phase Router

xyz.phase.ai/gateway · v0.5.1

OpenAI-compatible LLM gateway: pay per request with an API key, signed receipt for each call.

Connect Remote server

Terminal
claude mcp add --transport http gateway https://mcp.ai.phase.xyz/mcp --header "Authorization: Bearer <YOUR_API_KEY>" --header "X-Phase-BYOK-Anthropic: <X_PHASE_BYOK_ANTHROPIC>" --header "X-Phase-BYOK-OpenAI: <X_PHASE_BYOK_OPENAI>"
~/.cursor/mcp.json
{
  "mcpServers": {
    "gateway": {
      "url": "https://mcp.ai.phase.xyz/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_API_KEY>",
        "X-Phase-BYOK-Anthropic": "<X_PHASE_BYOK_ANTHROPIC>",
        "X-Phase-BYOK-OpenAI": "<X_PHASE_BYOK_OPENAI>"
      }
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "gateway": {
      "type": "http",
      "url": "https://mcp.ai.phase.xyz/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_API_KEY>",
        "X-Phase-BYOK-Anthropic": "<X_PHASE_BYOK_ANTHROPIC>",
        "X-Phase-BYOK-OpenAI": "<X_PHASE_BYOK_OPENAI>"
      }
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://mcp.ai.phase.xyz/mcp

Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.

Tools 7 found in our last check

  • chat

    Run a chat completion on Phase Router, paid from the Phase API key or the wallet this server uses (free models cost nothing). Returns the answer, actual price, task id for the receipt and usage.

  • embed

    Compute embeddings on Phase Router (paid from the Phase API key or the wallet).

  • key

    Balance, daily cap and spend of the Phase API key this server pays with (key mode).

  • list_models

    List models of Phase Router with prices (USD per 1M tokens, fee per call) and layer (flagship | open | class | free).

  • quote

    Get the price ceiling for a chat request without paying (the gateway's 402 quote).

  • receipt

    Fetch the public receipt of a paid request by task id (model, provider, tokens, price, settlement tx, request/response hashes, signatures) and its Merkle proof once the weekly epoch is closed.

  • session

    Saved chat sessions on Phase Router: create one (returns an id and a shareable /s/<id> link), read its thread, list the wallet's sessions (wallet mode only: signed with the wallet key, no transaction), or delete one. Pass the id as `session` to chat and the gateway carries the c…

Headers

NameDescription
Authorization
Required, secret
Phase API key as 'Bearer phk_...'
X-Phase-BYOK-Anthropic
Optional, secret
Optional: your Anthropic API key, for Claude models
X-Phase-BYOK-OpenAI
Optional, secret
Optional: your OpenAI API key, for GPT models

Details

Endpointhttps://mcp.ai.phase.xyz/mcp (Streamable HTTP)
First published10 Nov 2026
Last updated10 Nov 2026
Registry namexyz.phase.ai/gateway

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Listing data from the official MCP registry. Status and tools from NestDaddy's daily check. Browse all MCP servers.