MCP server

Foundry: prepaid AI compute in USDF

fi.usdf/gateway

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Prepaid AI compute in USDF: models, quotes and chat with a receipt; pay per call (x402) or by key

Website

At a glance

Type

MCP server

Publisher

usdf.fi (verified by the MCP Registry)

Status

Working at last check

Tools

10

Token cost

About 3,264 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http gateway https://api.usdf.fi/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.gateway]
url = "https://api.usdf.fi/mcp"

Gemini CLI

{"mcpServers":{"gateway":{"httpUrl":"https://api.usdf.fi/mcp"}}}

Cursor

{"mcpServers":{"gateway":{"url":"https://api.usdf.fi/mcp"}}}

VS Code

{"servers":{"gateway":{"type":"http","url":"https://api.usdf.fi/mcp"}}}

Antigravity

agy mcp add gateway https://api.usdf.fi/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"gateway","server_url":"https://api.usdf.fi/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"gateway","server_url":"https://api.usdf.fi/mcp"}

Tools

• agents_market_call ~398 tokens
  Calls a listing of the agents market by its id (svc_..., from agents_market_search), paid from this key's USDF balance (never free credit) within the key's and its agent's limits and at most max_price: what one call costs and nothing on top; a call its seller does not answer 2xx costs nothing, or no
• agents_market_search ~303 tokens
  Agents, APIs and tools priced per call, in one market, every listing in the same shape: its id (svc_...), name, description, tags, site and logo, how it is called (GET or POST), what one call costs in USDF from this key's balance, input and output examples, and the data policy. Ordered by popularity
• balance ~170 tokens
  With an API key: what the key can spend now, the account's balance and the amount held for requests running, and what is left of the key's budget, in USDF. With address instead, and no key: that wallet's USDF and USDG on the chain now, and how much USDF it lets the signature-transfer contract spend,
• chat ~868 tokens
  Runs a chat completion and returns the text with its receipt (tokens, price, cost, balance, settlement). With an API key it spends from that key's balance, holding the most the request can cost first. Not streamed. Output is capped at 4096 tokens. A call without a progress token answers within 55 s
• list_models ~76 tokens
  Models the gateway serves with their prices (USD per 1M tokens, the same figure in USDF), context window, output limits and whether a route is available right now. No key needed.
• list_tools ~198 tokens
  Tools you can call through POST /v1/tools/{id}, paid from the same balance and key as chat, each with its price in USDF (what it costs plus 5% at most) and the input it takes, ordered by title. Every tool listed can be called now. q keeps the tools whose id, title or description has those words; a p
• quote ~389 tokens
  The hold the chat tool places before running a request, in USDF and USD (output capped at 4096 tokens). It is an estimate, not a ceiling: a completed request is billed the provider's reported usage, normally less. Pass prompt or messages. No key needed; a request for attested hardware (a :private mo
• quote_tool ~174 tokens
  What a call to a tool would hold for this input before it runs (its most it can cost), in USDF and USD, with the tool's price. It checks the input as the call would, and runs and holds nothing. No key needed.
• receipt ~191 tokens
  With the API key that made the request: its receipt, with the usage, the price sheet version, the cost and, once settled, the settlement, its transaction and the rows behind the onchain digest. With no key: the public receipt of any request id, x402 ones included, with its line in the usage log, the
• x402_pay Moves money · ~497 tokens
  Calls a URL that asks for an x402 payment and pays it for you: the gateway pays the seller in USDC from its own float and charges this key in USDF cost plus 5% at most, no minimum (the seller's amount and a fee of at most 5% of it; never free credit), within the key's and its agent's limits. Needs a

Browse

• Payments

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