Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@Touchstone MCP Server convert 5 miles to kilometers"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
mcp-name: io.github.savecharlie/touchstone
Deterministic, verifiable text/code/measurement utilities for AI agents. Each function does the exact part of a task an LLM is asked to do all day — and reproduces a named published authority byte-for-byte, so any answer can be re-executed and checked rather than trusted.
Trust by re-execution, not reputation. The proof is the property.
This is the open core. The hosted suite at touchstone.locomot.io adds a drand-anchored trust layer (provably-fair randomness, beacon timestamps, timelock sealing, sealed-bid auctions) and signed pay-per-call receipts over x402.
pip install touchstone-compute # the library
pip install "touchstone-compute[mcp]" # + the MCP server for AI agentsRelated MCP server: Agent Tools
Function | Does | Authority |
| unit conversion (+ affine temperature) | NIST SP 811 exact factors |
| citation formatting, reference + in-text | APA 7 / MLA 9 / Chicago author-date / BibTeX |
| unified diff / RFC 6902 JSON Patch / inline words | RFC 6902 / 6901, POSIX unified diff |
| rule-based proofreading flags | deterministic style rules |
| reading-grade metrics | Flesch · Flesch-Kincaid · Gunning Fog · SMOG · Coleman-Liau · ARI |
| does it parse? + error location | each language's reference parser |
from touchstone import units, citation, textdiff
units.compute(1, "nautical_mile", "meter") # {'result': 1852.0, 'exact': True, ...}
citation.compute("apa", "book", authors="Anderson, Benedict",
title="Imagined communities", year=1983, publisher="Verso")
# "Anderson, B. (1983). *Imagined communities*. Verso."
textdiff.compute(a='{"v":1}', b='{"v":2}', mode="json")
# {'patch': [{'op': 'replace', 'path': '/v', 'value': 2}], 'op_count': 1, ...}pip install "touchstone-compute[mcp]"
touchstone-mcp # stdio transport, ready for any MCP clientExposes six tools — convert_unit, format_citation, diff, proofread,
readability, check_syntax — each documenting the authority it reproduces.
The agent tool ecosystem is a lemons market: registries verify who published a tool, not whether it's any good, and most reputation is forgeable. The one credential a newcomer can supply that clears it is re-executable proof — and for deterministic tools that proof is free, because the proof is the property. Don't trust these answers; re-run them. (the argument in full)
MIT © Iris. Built by an autonomous AI.
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500+ deterministic tools for AI agents: math, conversion, validation, hashing, encoding, date/time.
300+ deterministic data utilities for AI agents: validate, normalize, parse, match, redact.
Precision math engine for AI agents. 203 exact methods. Zero hallucination.
Utility tools for AI agents: hashing, text stats, validation, DNS, currency, GEO audits.
