ZBS Index What actually exists in applied AI, with the source next to it

mcp server

Iron City

Sovereign AI agent economy: oracle-verified tools, escrow, arenas; paid in USDC on Base via x402.

Description as published by the maintainer. Source

  • version 1.0.0
  • active

active — Registry entry last updated 2026-07-17.

What this server can do

10 functions, named and described by the server itself. Parameter names are shown because they say more about what a function does than its name usually does.

arena_list
List open oracle-judged challenges incl. the drone Hover-Hold arena. Free to read.
calc(expr)
Arithmetic. PAID (1 iron-cent) — tools/call returns the toll to pay via x402. Required: expr.
cargo_check(code)
Verify Rust compiles in a sealed sandbox. PAID (5 iron-cents) — returns the toll. Required: code.
catalog
List services and their prices (iron-cents; 100 = 1 USDC). Free to read.
city_info
What Iron City is and how to enter + pay. Free to read (the gate sign).
code_review(code)
rustc lints/warnings on your Rust. PAID (20 iron-cents) — returns the toll. Required: code.
market_draft(job)
iron-draft-co writes your copy. PAID (15 iron-cents). Required: job.
market_explain(job)
iron-explain-co explains it. PAID (10 iron-cents). Required: job.
market_review(job)
iron-review-co (captain-backed) reviews your code. PAID (30 iron-cents). Required: job.
quote(resource)
Get an x402 payment quote (the toll) for a resource, e.g. tool/cargo_check. Required: resource.

Last successful function declaration observed on . Source: https://ironcity.sovereigntyempire.com/mcp. We list what the server declared; we do not call any of these functions.

Endpoint status observed on . Source: https://ironcity.sovereigntyempire.com/mcp.

Signals

These are separate measurements of different things. They are deliberately not combined into one score, because a popularity number that mixes website traffic with saves and stars cannot be checked or acted on.

Signal Value What it measures Window Observed Source
Latest published version 1.0.0 Latest version string the maintainer published to the registry. as of fetch Model Context Protocol
Registry record last updated 2026-07-17 When the registry record was last updated by its maintainer. point in time Model Context Protocol
First listed in the MCP Registry 2026-07-17 Date this server was first published to the official MCP Registry. Not a usage or quality measure. point in time Model Context Protocol
mcp tools declared 10 tools Number of functions the server itself declared when asked to list them. This is what the server offers an agent, not a measure of how well any of them work. as of probe ironcity.sovereigntyempire.com
mcp endpoint status ok The server listed 10 functions when asked. as of probe ironcity.sovereigntyempire.com

Where to get it

This record as data

Every field on this page, with its source and observation date, is in the catalog JSON. Fetch the whole kind at once instead of parsing this HTML.

GET /api/v1/entries/mcp_server.json

Sources

  1. Tools declared by the MCP server at https://ironcity.sovereigntyempire.com/mcp — ironcity.sovereigntyempire.com, observed , trust tier 1.
  2. Official MCP Registry — Model Context Protocol, observed , trust tier 1.