# Foundry (usdf.fi)

Prepaid balance token, redeemable 1:1 for USDG, that pays per request for AI model compute and tool calls.

- Atlas card: https://inite.ai/en/atlas/usdf.fi
- Site: https://usdf.fi
- For: Developers and AI agents paying for model compute per request, with a crypto wallet and no account.
- Use 0/100 · alive 100/100

## Used for

- pay for AI model requests from one prepaid balance
- cut repeat input token costs with automatic caching
- let agents pay per API call without accounts

## Price

- usage, no free plan (read 2026-10-27 on https://usdf.fi/buy)

## For developers

- API docs: https://docs.usdf.fi
- MCP server: fi.usdf/gateway (namespace; open on 2026-10-27, 10 tools)
- Read 2026-10-27

## MCP server, measured daily

Server: https://api.usdf.fi/mcp, checked every day since 2026-10-27 (1 checks).

- Answered: measuring, 1 daily checks so far
- Median first answer: 263 ms
- Sign-in: none
- Context its tool definitions take: about 3013 tokens (10 tools)
- Tool definitions: A, 98/100
- Failing "params_described": 1 of 10 tools
- Warning "destructive_denied": x402_pay
- Warning "open_writes": x402_pay
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Training on your data: no (https://usdf.fi/privacy)
- Read 2026-10-27

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Source: INITE Atlas, https://inite.ai/en/atlas/usdf.fi. JSON: https://inite.ai/api/atlas/usdf.fi. MCP: https://inite.ai/api/mcp (atlas_lookup).