MCP server

rta — zero-knowledge proof of a threshold Official

lat.rta/rta

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Prove a hidden value reached a threshold without revealing the value.

Working at last checkVerified publisher: rta.latAbout 403 tokens per request once connected2 tools

https://rta.lat/mcp

At a glance

Type: MCP server
Publisher: rta.lat (verified by the MCP Registry)
Status: Working at last check
Tools: 2
Token cost: About 403 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http rta https://rta.lat/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.rta]
url = "https://rta.lat/mcp"

Gemini CLI

{"mcpServers":{"rta":{"httpUrl":"https://rta.lat/mcp"}}}

Cursor

{"mcpServers":{"rta":{"url":"https://rta.lat/mcp"}}}

VS Code

{"servers":{"rta":{"type":"http","url":"https://rta.lat/mcp"}}}

Antigravity

agy mcp add rta https://rta.lat/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"rta","server_url":"https://rta.lat/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"rta","server_url":"https://rta.lat/mcp"}

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List the thresholds ṚTA can prove: for each predicate, the name, the threshold value, the circuit size and a plain-language label. Use before generating a proof, so the agent knows which statement it can prove without revealing the underlying value.
verify_proof ~297 tokens
Verify a Groth16 zero-knowledge proof that a hidden value reached a threshold — for example 'the account balance is at least 1000'. The verifier learns that the threshold is met and never learns the value: the public signals are empty by construction. Returns whether the proof is valid, the predicat

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