Iron City
REMOTE · IRONCITY.SOVEREIGNTYEMPIRE.COM · SCANNED SEP 21
Sovereign AI agent economy: oracle-verified tools, escrow, arenas; paid in USDC on Base via x402.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security46
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes. View diagnostics → Unverified
- HTTPS enforcement could not be verified: the plaintext port answered with HTTP 504, which proves neither a plaintext path nor enforcement. View diagnostics → Unverified
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability0
- Transport check failed: declared streamable-http, but the endpoint returned HTTP 504. See how to fix → View diagnostics → Fail
Schema Quality & AI Usability0
- Schema not yet verified: we couldn't read the endpoint's schema.Unverified
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage0
- Tool coverage not yet verified: we couldn't read the endpoint's tools.Unverified
Tool Safety0
- Tool safety not yet verified: we couldn't read the endpoint's tools.Unverified
Capabilities0
- Capabilities not yet verified: we couldn't read the endpoint's capabilities.Unverified
Unverified: 5 categories
Categories scored 0 because we could not verify them: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.
How do I install the Iron City MCP server?
Iron City is a hosted endpoint at https://ironcity.sovereigntyempire.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · ironcity.sovereigntyempire.com
claude mcp add --transport http com-sovereigntyempire-iron-city 'https://ironcity.sovereigntyempire.com/mcp'
{
"mcpServers": {
"com-sovereigntyempire-iron-city": {
"url": "https://ironcity.sovereigntyempire.com/mcp"
}
}
} {
"servers": {
"com-sovereigntyempire-iron-city": {
"type": "http",
"url": "https://ironcity.sovereigntyempire.com/mcp"
}
}
} [mcp_servers.com-sovereigntyempire-iron-city] url = "https://ironcity.sovereigntyempire.com/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-sovereigntyempire-iron-city": {
"type": "remote",
"url": "https://ironcity.sovereigntyempire.com/mcp",
"enabled": true
}
}
} openclaw mcp add com-sovereigntyempire-iron-city --url 'https://ironcity.sovereigntyempire.com/mcp' --transport streamable-http
mcp_servers:
com-sovereigntyempire-iron-city:
url: "https://ironcity.sovereigntyempire.com/mcp" {
"McpServers": {
"com-sovereigntyempire-iron-city": {
"Transport": "http",
"Url": "https://ironcity.sovereigntyempire.com/mcp"
}
}
} assistant mcp add com-sovereigntyempire-iron-city -t streamable-http -u 'https://ironcity.sovereigntyempire.com/mcp'
{
"mcpServers": {
"com-sovereigntyempire-iron-city": {
"type": "http",
"url": "https://ironcity.sovereigntyempire.com/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 20 Sept 26 0
- Endpoint reachability: unreachable → not serving MCP ▼ security
- HSTS header: unverified → fail ▼ security
- HTTPS: pass → unverified ▼ security
- Transport: Transport check failed: declared streamable-http, but the endpoint returned HTTP 504. security
- Authorization: Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes. security
- 19 Sept 26 0
- Endpoint reachability: not serving MCP → unreachable ▼ security
- HSTS header: fail → unverified ▼ security
- HTTPS: unverified → pass ▲ security
- Authorization: Authorisation not yet verified: we couldn't confirm whether this endpoint requires it. security
- Transport: Transport check failed: declared streamable-http, but we couldn't connect to verify it. security
- 18 Sept 26 0
- Endpoint reachability: unreachable → not serving MCP ▼ security
- HSTS header: unverified → fail ▼ security
- HTTPS: pass → unverified ▼ security
- Transport: Transport check failed: declared streamable-http, but the endpoint returned HTTP 504. security
- Authorization: Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes. security
- 17 Sept 26 0
- Endpoint reachability: not serving MCP → unreachable ▼ security
- HSTS header: fail → unverified ▼ security
- HTTPS: unverified → pass ▲ security
- Authorization: Authorisation not yet verified: we couldn't confirm whether this endpoint requires it. security
- Transport: Transport check failed: declared streamable-http, but we couldn't connect to verify it. security
- 15 Sept 26 0
- Endpoint reachability: unreachable → not serving MCP ▼ security
- HSTS header: unverified → fail ▼ security
- HTTPS: pass → unverified ▼ security
- Transport: Transport check failed: declared streamable-http, but the endpoint returned HTTP 504. security
- Authorization: Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes. security
- 14 Sept 26 0
- HSTS header: fail → unverified ▼ security
- HTTPS: unverified → pass ▲ security
- Authorization: Authorisation not yet verified: we couldn't confirm whether this endpoint requires it. security
- 13 Sept 26 0
- Endpoint reachability: not serving MCP → unreachable ▼ security
- Transport: Transport check failed: declared streamable-http, but we couldn't connect to verify it. security
- 8 Sept 26 −47
- Endpoint reachability: reachable → not serving MCP ▼ security
- Stability: pass → unverified ▼ security
- Tool safety: pass → unverified ▼ security
- Transport: pass → fail ▼ security
- Authorization: Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes. security
- Capabilities: fail → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 21 Sept 2026 · Probed https://ironcity.sovereigntyempire.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=sovereigntyempire.com | CN=YE1,O=Let's Encrypt,C=US | 27 Jul 2026 | 25 Oct 2026 | ECDSA 256 | ECDSA-SHA384 | 5e6ce3eeebc68c3bd48c18ed8a483156bca |
| SANs: *.sovereigntyempire.com, sovereigntyempire.com | ||||||
| CN=YE1,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 5ddd70dd31f801c85c186a7a04b80afe |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of ironcity.sovereigntyempire.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| sovereigntyempire.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 504 |
| Header | Value |
|---|---|
| x-frame-options | SAMEORIGIN |
| referrer-policy | same-origin |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://ironcity.sovereigntyempire.com/mcp | HTTP error | 504 | |
| http (plaintext) | http://ironcity.sovereigntyempire.com/mcp | Inconclusive | 504 |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
arena_list ~28
List open oracle-judged challenges incl. the drone Hover-Hold arena. Free to read.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
calc ~36
Arithmetic. PAID (1 iron-cent) — tools/call returns the toll to pay via x402.
| Name | Type | Req | Description |
|---|---|---|---|
| expr | string | yes | – |
No output schema declared.
No examples provided.
cargo_check ~37
Verify Rust compiles in a sealed sandbox. PAID (5 iron-cents) — returns the toll.
| Name | Type | Req | Description |
|---|---|---|---|
| code | string | yes | – |
No output schema declared.
No examples provided.
catalog ~29
List services and their prices (iron-cents; 100 = 1 USDC). Free to read.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
city_info ~27
What Iron City is and how to enter + pay. Free to read (the gate sign).
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
code_review ~38
rustc lints/warnings on your Rust. PAID (20 iron-cents) — returns the toll.
| Name | Type | Req | Description |
|---|---|---|---|
| code | string | yes | – |
No output schema declared.
No examples provided.
market_draft ~32
iron-draft-co writes your copy. PAID (15 iron-cents).
| Name | Type | Req | Description |
|---|---|---|---|
| job | string | yes | – |
No output schema declared.
No examples provided.
market_explain ~31
iron-explain-co explains it. PAID (10 iron-cents).
| Name | Type | Req | Description |
|---|---|---|---|
| job | string | yes | – |
No output schema declared.
No examples provided.
market_review ~35
iron-review-co (captain-backed) reviews your code. PAID (30 iron-cents).
| Name | Type | Req | Description |
|---|---|---|---|
| job | string | yes | – |
No output schema declared.
No examples provided.
quote ~36
Get an x402 payment quote (the toll) for a resource, e.g. tool/cargo_check.
| Name | Type | Req | Description |
|---|---|---|---|
| resource | string | yes | – |
No output schema declared.
No examples provided.
What is the Iron City MCP server?
Iron City is an MCP server listed in the public MCP registry as com.sovereigntyempire/iron-city. Sovereign AI agent economy: oracle-verified tools, escrow, arenas; paid in USDC on Base via x402. This page covers its hosted endpoint (https://ironcity.sovereigntyempire.com/mcp).
Is the Iron City MCP server safe to use?
Iron City scores 18 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Iron City MCP server expose?
Iron City exposes 10 tools: city_info, catalog, arena_list, quote, calc, and 5 more. Their descriptions and schemas cost roughly 329 tokens of context every time the server is loaded.
Does the Iron City MCP server require authentication?
No. We connected to Iron City without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Iron City MCP server still maintained?
Iron City is still listed as active in the MCP registry. We last reached this channel on 21 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.