Catalog Attribute Normalizer
REMOTE · CATALOG-NORMALIZER.ACJLABS.COM · SCANNED SEP 20
Catalog attribute normalizer, taxonomy-grounded — no fabricated Google/Shopify category IDs.
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 Security83
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation is enforced on tool calls, but the challenge carries no valid RFC 9728 metadata, so a client cannot discover where to get a token. See how to fix → View diagnostics → Fail
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- 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 & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability57
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 335 tokens (~335/item across 1 items; 1 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 Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage71
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 0% of tool parameters carry a description.Fail
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 1 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 1 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the Catalog Attribute Normalizer MCP server?
Catalog Attribute Normalizer is a hosted endpoint at https://catalog-normalizer.acjlabs.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 · catalog-normalizer.acjlabs.com
claude mcp add --transport http com-acjlabs-catalog-normalizer 'https://catalog-normalizer.acjlabs.com/mcp'
{
"mcpServers": {
"com-acjlabs-catalog-normalizer": {
"url": "https://catalog-normalizer.acjlabs.com/mcp"
}
}
} {
"servers": {
"com-acjlabs-catalog-normalizer": {
"type": "http",
"url": "https://catalog-normalizer.acjlabs.com/mcp"
}
}
} [mcp_servers.com-acjlabs-catalog-normalizer] url = "https://catalog-normalizer.acjlabs.com/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-acjlabs-catalog-normalizer": {
"type": "remote",
"url": "https://catalog-normalizer.acjlabs.com/mcp",
"enabled": true
}
}
} openclaw mcp add com-acjlabs-catalog-normalizer --url 'https://catalog-normalizer.acjlabs.com/mcp' --transport streamable-http
mcp_servers:
com-acjlabs-catalog-normalizer:
url: "https://catalog-normalizer.acjlabs.com/mcp" {
"McpServers": {
"com-acjlabs-catalog-normalizer": {
"Transport": "http",
"Url": "https://catalog-normalizer.acjlabs.com/mcp"
}
}
} assistant mcp add com-acjlabs-catalog-normalizer -t streamable-http -u 'https://catalog-normalizer.acjlabs.com/mcp'
{
"mcpServers": {
"com-acjlabs-catalog-normalizer": {
"type": "http",
"url": "https://catalog-normalizer.acjlabs.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.
- 30 Aug 26 0
- Stability: 0.97 → pass security
- 29 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 27 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.
- 26 Aug 26 +2
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 24 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 77 to 80. That category is still filling its 30-day observation window: 23 days of observed history at the previous scan, 24 at this one. The score rises as the window fills, whether or not the server changes.
- 11 Aug 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
- 1 Aug 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
- 31 Jul 26 0
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 20 Sept 2026 · Probed https://catalog-normalizer.acjlabs.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=acjlabs.com | CN=WE1,O=Google Trust Services,C=US | 28 Jul 2026 | 26 Oct 2026 | ECDSA 256 | ECDSA-SHA256 | da2c8c441f5eb83213862500130048c2 |
| SANs: acjlabs.com, catalog-normalizer.acjlabs.com, *.catalog-normalizer.acjlabs.com | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of catalog-normalizer.acjlabs.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| acjlabs.com. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication Challenged, unverified
The endpoint asked for a token, but we could not retrieve and validate the RFC 9728 metadata that tells a client how to obtain one.
| Result | Challenged, unverified |
|---|---|
| Enforced | On tool calls |
| HTTP status | 200 |
WWW-Authenticate challenge Bearer realm="catalog-attribute-normalizer"
Bearer realm="catalog-attribute-normalizer"Protected resource metadata
| Retrieved | No |
|---|---|
| Problem | no_resource_metadata |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://catalog-normalizer.acjlabs.com/mcp | Verified | 200 | |
| http (plaintext) | http://catalog-normalizer.acjlabs.com/mcp | HTTPS enforced | 301 | https://catalog-normalizer.acjlabs.com/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 →
normalize_catalog Normalize Catalog ~335
Normalizes a batch of catalog products (attribute canonicalization/extraction + category-path mapping into the requested target taxonomies: google, shopify, amazon). Returns one result per input product, same order: a NormalizedProduct on success, or { error, source_title } if that specific product's classification failed — one product's failure never voids the rest of the batch. attributes is keyed by a controlled vocabulary (size, color, material, gender, sleeve_length — unrecognized keys are dropped, not passed through under a model-chosen name) and each value carries provenance: "canonicalized" means it came from your own raw_attributes input for that product (deterministic cleanup only, no recall); "extracted" means the model inferred it from the title/description and it wasn't in your input — treat extracted values as a suggestion, not a confirmed fact about the product, the same way you'd treat a low-confidence category_paths entry. category_paths for google and shopify is retrieval-grounded against the real, current taxonomy files (not recalled from memory) — measured at 22/24 (91.7%) exact path+leaf_id matches on a 12-product evaluation set; amazon has no comparable public reference file, so it stays best-effort. Each entry's confidence (0-1) and leaf_id (null when not confident it matches a real node) are the honest signal regardless of taxonomy — treat a low-confidence or null-leaf_id result as a suggestion worth a quick human check, not a confirmed classification.
| Name | Type | Req | Description |
|---|---|---|---|
| products | array | yes | – |
| target_taxonomies | array | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| results | array | yes | – |
No examples provided.
What is the Catalog Attribute Normalizer MCP server?
Catalog Attribute Normalizer is an MCP server listed in the public MCP registry as com.acjlabs/catalog-normalizer. Catalog attribute normalizer, taxonomy-grounded, no fabricated Google/Shopify category IDs. This page covers its hosted endpoint (https://catalog-normalizer.acjlabs.com/mcp).
Is the Catalog Attribute Normalizer MCP server safe to use?
Catalog Attribute Normalizer scores 83 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 Catalog Attribute Normalizer MCP server expose?
Catalog Attribute Normalizer exposes 1 tool: normalize_catalog. Their descriptions and schemas cost roughly 335 tokens of context every time the server is loaded.
Does the Catalog Attribute Normalizer MCP server require authentication?
Yes. Catalog Attribute Normalizer asked us for credentials when we connected, so you will need to authorise it in your MCP client before it can do anything.
Is the Catalog Attribute Normalizer MCP server still maintained?
Catalog Attribute Normalizer is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.