# Fatstack (fatstack.net)

Lets AI agents pay per call in USDC on Base for API and MCP tools listed in a catalogue.

- Atlas card: https://inite.ai/en/atlas/fatstack.net
- Site: https://fatstack.net
- For: Developers whose AI agents need to pay per call for API and MCP tools
- Categories: dev
- Use 0/100 · alive 100/100

## Used for

- parse caller-supplied HTML into structured JSON
- convert CSV files into JSON rows
- translate cron expressions into readable descriptions

## Price

Not read yet.

## For developers

- MCP server: net.fatstack/registry (namespace; open on 2026-10-26, 15 tools)
- Read 2026-10-26

## MCP server, measured daily

Server: https://www.fatstack.net/api/mcp, checked every day since 2026-10-26 (2 checks).

- Answered: measuring, 2 daily checks so far
- Median first answer: 214 ms
- Sign-in: none
- Context its tool definitions take: about 4453 tokens (15 tools)
- Tool definitions: C, 72/100
- Failing "params_typed": 1 of 15 tools
- Failing "params_described": 9 of 15 tools
- Failing "annotations": 15 of 15 tools
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Read 2026-10-26

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