lat.rta.karta/guard

up checked 2026-11-11T04:38:50.565Z

Unclaimed · Unverified

Publisher-provided title

KARTA — spend control for AI agents

Publisher-provided description

Task envelope, budget ledger, kill switch and signed receipts for agents that pay.

Summary by lookupd

Opens, checks and stops budget envelopes for agent spending, with read-only evidence bundles and signed receipts of each spend decision.

Install

Claude Code, remote (streamable-http)

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

Codex, remote (streamable-http)

codex mcp add guard --url https://karta.rta.lat/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

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

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Publisher-provided text

check_spend Check whether a proposed agent spend is inside a task envelope. Returns verdict, rule, reason, counterfactual and next. No state is stored.
open_envelope Create a signed budget envelope for one task: total budget, per-call cap, call count, allowlisted payees, subscription rule, expiry. Stores it in this server's
get_envelope Return an envelope's state: budget, per-call cap, calls used, spent, remaining, allowlist and expiry. Read-only.
kill_envelope Stop one task envelope immediately: no further spend is approved for it, the reason is recorded with a timestamp. Idempotent — the first reason wins.
envelope_evidence Return an evidence bundle for one envelope: state, every recorded spend, the stop record and a sha256 of the whole pack that anyone can recompute. Read-only.
policy_rules List the deterministic rules a spend is checked against (E01-E08) with the order they are applied and the meaning of each. Read-only, no state.

Shows this live status and links here; updates hourly.

[![lookupd status](https://lookupd.com/badge/lat.rta.karta/guard.svg)](https://lookupd.com/servers/lat.rta.karta/guard)