OpenAI-compatible LLM gateway: pay per request with an API key, signed receipt for each call.
Connect Remote server
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>"
{
"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>"
}
}
}
}
{
"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>"
}
}
}
}
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
chatRun 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.
embedCompute embeddings on Phase Router (paid from the Phase API key or the wallet).
keyBalance, daily cap and spend of the Phase API key this server pays with (key mode).
list_modelsList models of Phase Router with prices (USD per 1M tokens, fee per call) and layer (flagship | open | class | free).
quoteGet the price ceiling for a chat request without paying (the gateway's 402 quote).
receiptFetch 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.
sessionSaved 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
| Name | Description |
|---|---|
AuthorizationRequired, secret | Phase API key as 'Bearer phk_...' |
X-Phase-BYOK-AnthropicOptional, secret | Optional: your Anthropic API key, for Claude models |
X-Phase-BYOK-OpenAIOptional, secret | Optional: your OpenAI API key, for GPT models |
Details
| Endpoint | https://mcp.ai.phase.xyz/mcp (Streamable HTTP) |
| First published | 10 Nov 2026 |
| Last updated | 10 Nov 2026 |
| Registry name | xyz.phase.ai/gateway |
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