mcp

mcp is an MCP server for Claude Code, Codex, Cursor, Gemini CLI, OpenCode from lemmaoracle/lemma. Its token cost is not measured, scanned A, original, no licence file.

A local Model Context Protocol (MCP) server for querying Lemma Oracle data about zero-knowledge-verified attributes, selective disclosure, and on-chain provenance. It runs from an npm package and needs two environment variables.

In plain words
What is it for?
It is for checking verified attributes, selective data sharing, and the history of information recorded on a blockchain.
Why use it?
It gives a coding agent a local way to query these Lemma Oracle records without manually building the connection.

MCP server for Claude CodeCodexCursorGemini CLIOpenCode

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add mcp/lemmaoracle/lemma/mcp-mcp
Clone the repo
git clone --depth 1 https://github.com/lemmaoracle/lemma

Made for: Claude Code, Codex, Cursor, Gemini CLI, OpenCode.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for mcp

README.md
[![agentmods](https://agentmods.dev/badge/mcp/lemmaoracle/lemma/mcp-mcp.svg)](https://agentmods.dev/mcp/lemmaoracle/lemma/mcp-mcp)
Your own site
<a href="https://agentmods.dev/mcp/lemmaoracle/lemma/mcp-mcp"><img src="https://agentmods.dev/badge/mcp/lemmaoracle/lemma/mcp-mcp.svg" alt="Measured on agentmods" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Security

Grade A, and why

mcp scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

packages/mcp/server.json · 13 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 13 lines scan A 28dccc2abe88

Subscribe to this mod's changes

mcp is an MCP server published in the GitHub repository lemmaoracle/lemma (1 stars, last pushed today), with no licence file. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.