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MCP Server

touchstone-mcp

io.github.petrkrulis2022/touchstone-mcp
Finance & Investing Public & reachable MCP 2025-11-25

What this MCP does

Provides an indexed pricing benchmark for AI inference work, converts token usage to costs, quotes rates, and verifies settlements.

Capabilities

Tools

4 tools
convert
Convert a model call's token counts into SIU and USD.
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['model', 'input_tokens', 'output_tokens'], 'properties': {'model': {'type': 'string'}, 'input_tokens': {'type': 'integer', 'maximum': 9007199254740991, 'minimum': 0}, 'output_tokens': {'type': 'integer', 'maximum': 9007199254740991, 'minimum': 0}}}
get_index
The signed Dated SIU print. Free — citation is the business.
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'date': {'type': 'string'}, 'version': {'type': 'string'}}}
get_quote
SIU price, exchange rate and index refs for one task class and model.
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['task_class', 'model'], 'properties': {'model': {'type': 'string'}, 'task_class': {'type': 'string'}}}
verify_receipt
Reads an on-chain settlement and returns a signed attestation.
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['chain', 'tx_hash', 'quote'], 'properties': {'chain': {'type': 'string'}, 'quote': {'type': 'object', 'propertyNames': {'type': 'string'}, 'additionalProperties': {}}, 'tx_hash': {'type': 'string'}}}
History

Recent tool changes

Added
verify_receipt
Sept. 17, 2026, 12:45 p.m.
Added
convert
Sept. 17, 2026, 12:45 p.m.
Added
get_quote
Sept. 17, 2026, 12:45 p.m.
Added
get_index
Sept. 17, 2026, 12:45 p.m.
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