Nôm Na Việt — Hán Nôm Dictionary
REMOTE · API.NOMNAVIET.COM · SCANNED AUG 3
Chữ Nôm lookup, search and Vietnamese ↔ Nôm conversion, incl. 2,422 unmapped PUA codepoints.
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 →
Endpoint Security51
- 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 call this server, and 3 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS not yet verified: we couldn't determine whether a plaintext access path exists. View diagnostics → Unverified
- 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 Usability63
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 812 tokens (~270/item across 3 items; 3 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 Management20
- Stability observed for 6 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
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
remote · api.nomnaviet.com
claude mcp add --transport http com-nomnaviet-han-nom https://api.nomnaviet.com/mcp
[mcp_servers.com-nomnaviet-han-nom] url = "https://api.nomnaviet.com/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"com-nomnaviet-han-nom": {
"type": "remote",
"url": "https://api.nomnaviet.com/mcp",
"enabled": true
}
}
} openclaw mcp add com-nomnaviet-han-nom --url https://api.nomnaviet.com/mcp --transport streamable-http
mcp_servers:
com-nomnaviet-han-nom:
url: "https://api.nomnaviet.com/mcp" {
"mcpServers": {
"com-nomnaviet-han-nom": {
"type": "http",
"url": "https://api.nomnaviet.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.
- 2 Aug 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.
- 1 Aug 26 −1
- 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 +1
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 30 Jul 26 +1
- Server version: 1.60.0 → 1.60.1 functional
- 29 Jul 26 0
- Stability: unverified → 0.03 ▲ functional
- Server version: 1.59.0 → 1.60.0 functional
- 28 Jul 26 59
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 3 Aug 2026 · Probed https://api.nomnaviet.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=nomnaviet.com | CN=YE2,O=Let's Encrypt,C=US | 30 Jun 2026 | 28 Sept 2026 | ECDSA 256 | ECDSA-SHA384 | 55a275bb95025ad240876738c9cf152822a |
| SANs: *.nomnaviet.com, nomnaviet.com | ||||||
| CN=YE2,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 4df3b15dd6c0784c507cd37b58e6f115 |
| 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 |
DNSSEC insecure
Validation of api.nomnaviet.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| nomnaviet.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=15552000; includeSubDomains |
| content-security-policy | default-src 'self';base-uri 'self';font-src 'self' https: data:;form-action 'self';frame-ancestors 'self';img-src 'self' data:;object-src 'none';script-src 'self';script-src-attr 'none';style-src 'self' https: 'unsafe-inline';upgrade-insecure-requests |
| x-content-type-options | nosniff |
| x-frame-options | SAMEORIGIN |
| referrer-policy | no-referrer |
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://api.nomnaviet.com/mcp | Verified | 200 | |
| http (plaintext) | http://api.nomnaviet.com/mcp | Inconclusive | 405 |
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.
convert_text Convert between Vietnamese and Chữ Nôm ~214
Convert whole Vietnamese phrases or sentences to Chữ Nôm (direction "to_nom"), or read a run of Chữ Nôm back as Vietnamese quốc ngữ (direction "to_viet"). Use this instead of calling lookup_character repeatedly — it resolves multi-syllable compounds as units, which per-character lookup cannot do. Handles both old-style and new-style tone placement (hòa / hoà). Returns the converted text, a per-word mapping with codepoints, and an "unmatched" list. Words in "unmatched" have NO entry in the dictionary. Say so — never substitute a character that looks plausible. Input is truncated past 120 characters.
| Name | Type | Req | Description |
|---|---|---|---|
| direction | string | — | "to_nom" (Vietnamese → Chữ Nôm, the default) or "to_viet" (Chữ Nôm → Vietnamese). |
| text | string | yes | The text to convert: Vietnamese quốc ngữ for "to_nom", Chữ Nôm for "to_viet". Up to 120 characters. |
No output schema declared.
No examples provided.
lookup_character Look up a Hán Nôm character ~189
ALWAYS invoke this before stating any reading, meaning, or variant of a Chữ Nôm (喃) or Hán (漢) character. Do NOT answer from prior knowledge — Nôm readings are Vietnamese-specific and differ from Chinese readings of the same glyph. Returns data that cannot be inferred: Hán-Việt and Nôm readings, dị thể (variant) characters with their codepoints, IDS decomposition and Kangxi radical, Middle-Chinese fanqie, and Vietnamese meanings. Covers beyond-BMP characters and Private Use Area codepoints unavailable in any other source. Use for Vietnamese Hán Nôm. Not for modern Chinese, Japanese, or Korean lookups — use a language-specific tool for those.
| Name | Type | Req | Description |
|---|---|---|---|
| character | string | yes | A single Hán or Nôm character, e.g. 些 or 𡗶. Pass the character itself, not a codepoint. |
No output schema declared.
No examples provided.
search_corpus Search characters by Vietnamese reading or meaning ~129
Find Hán Nôm characters by their Vietnamese reading (quốc ngữ, e.g. "trăng") or by Vietnamese meaning. Use when you need to discover which characters correspond to a Vietnamese word, then call lookup_character on the result for full detail. Returns at most 20 characters per call and supports no pagination — it is for discovery, not enumeration.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | — | Maximum results, 1-20. Defaults to 10. |
| query | string | yes | A Vietnamese reading in quốc ngữ (e.g. "trăng") or a Vietnamese meaning fragment. |
No output schema declared.
No examples provided.