GoCodebook — California Building Codes
REMOTE · GOCODEBOOK.COM · SCANNED SEP 27
Verbatim California Title 24 and local zoning code lookup by section number, with citations.
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 Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability75
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 470 tokens (~235/item across 2 items; 2 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management10
- Stability observed for 3 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 2 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 3 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities60
- Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
How do I install the GoCodebook — California Building Codes MCP server?
GoCodebook — California Building Codes is a hosted endpoint at https://gocodebook.com/api/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 · gocodebook.com
claude mcp add --transport http com-gocodebook-codes 'https://gocodebook.com/api/mcp'
{
"mcpServers": {
"com-gocodebook-codes": {
"url": "https://gocodebook.com/api/mcp"
}
}
} {
"servers": {
"com-gocodebook-codes": {
"type": "http",
"url": "https://gocodebook.com/api/mcp"
}
}
} [mcp_servers.com-gocodebook-codes] url = "https://gocodebook.com/api/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-gocodebook-codes": {
"type": "remote",
"url": "https://gocodebook.com/api/mcp",
"enabled": true
}
}
} openclaw mcp add com-gocodebook-codes --url 'https://gocodebook.com/api/mcp' --transport streamable-http
mcp_servers:
com-gocodebook-codes:
url: "https://gocodebook.com/api/mcp" {
"McpServers": {
"com-gocodebook-codes": {
"Transport": "http",
"Url": "https://gocodebook.com/api/mcp"
}
}
} assistant mcp add com-gocodebook-codes -t streamable-http -u 'https://gocodebook.com/api/mcp'
{
"mcpServers": {
"com-gocodebook-codes": {
"type": "http",
"url": "https://gocodebook.com/api/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.
- 26 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 24 Sept 26 72
First indexed and scored.
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 27 Sept 2026 · Probed https://gocodebook.com/api/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=gocodebook.com | CN=YR1,O=Let's Encrypt,C=US | 9 Sept 2026 | 8 Dec 2026 | RSA 2048 | SHA256-RSA | 65cd1f736cd13670d7ff4538b9389d2b27e |
| SANs: gocodebook.com | ||||||
| CN=YR1,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | a20253f15f2691c05dc1ce13b9bcca4e |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of gocodebook.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| gocodebook.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 | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000; includeSubDomains; preload |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://gocodebook.com/api/mcp | Verified | 200 | |
| http (plaintext) | http://gocodebook.com/api/mcp | HTTPS enforced | 308 | https://gocodebook.com/api/mcp |
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 →
list_california_code_documents ~85
List the California codes and local ordinances available for lookup, and state honestly what is NOT covered. Call this before telling a user a code is unavailable, and when you need the exact document slug or jurisdiction slug for a lookup.
| Name | Type | Req | Description |
|---|---|---|---|
| jurisdiction | string | – | Optional. A California city or county slug — returns the documents held for that jurisdiction instead of the statewide list. |
No output schema declared.
No examples provided.
lookup_california_code_section ~315
Look up the VERBATIM text of a California building, residential, fire, plumbing, mechanical, green (CALGreen), energy or existing-building code section, or a section of a California city or county zoning/municipal ordinance, by its section number. Use this whenever the user cites a section number ("CRC R602.10.2.3", "CBC 1004", "§ 17.60.090") or asks what a specific section says. Returns the official text with its citation, edition and a link to the full section. It does NOT determine whether a specific project complies — for that, send the user to the linked page.
| Name | Type | Req | Description |
|---|---|---|---|
| code_edition | string | – | Optional. Which Title 24 cycle to read. California enforces the edition in force when the permit application was submitted, so a project filed in 2024 is enforced under "2022". Defaults to "current"… |
| jurisdiction | string | – | Optional. A California city or county slug to scope the lookup to its own municipal code — "los-angeles", "san-jose", "marin-county". Omit for statewide Title 24 codes. |
| section | string | yes | The section number exactly as cited, without the code name. Examples: "R602.10.2.3", "1004", "507.2", "17.60.090", "11B-206". |
No output schema declared.
No examples provided.
What is the GoCodebook — California Building Codes MCP server?
GoCodebook — California Building Codes is an MCP server listed in the public MCP registry as com.gocodebook/codes. Verbatim California Title 24 and local zoning code lookup by section number, with citations. This page covers its hosted endpoint (https://gocodebook.com/api/mcp).
Is the GoCodebook — California Building Codes MCP server safe to use?
GoCodebook — California Building Codes scores 73 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 GoCodebook — California Building Codes MCP server expose?
GoCodebook — California Building Codes exposes 2 tools: lookup_california_code_section, list_california_code_documents. Their descriptions and schemas cost roughly 400 tokens of context every time the server is loaded.
Does the GoCodebook — California Building Codes MCP server require authentication?
No. We connected to GoCodebook — California Building Codes without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the GoCodebook — California Building Codes MCP server still maintained?
GoCodebook — California Building Codes is still listed as active in the MCP registry. We last reached this channel on 27 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.