iana_lookup_language_tag
shallowio.github.cyanheads/iana-registries-mcp-server · Verify this server
Parse and validate a BCP 47 language tag against the IANA Language Subtag Registry, or search subtags by description. Pass exactly one of `tag` (e.g. "zh-Hant-TW", "sr-Latn", "en_US") or `description` (e.g. "Swiss German"). A tag is split into language, extlang, script, region, variant, extension, and private-use parts; each part is checked, deprecated subtags report their preferred value, and a canonical tag is returned when the tag is valid. A single subtag registered under several types (e.g. "TW") lists the other types.
1 trials · measured 1 day ago
iana_lookup_language_tag scores 100.0/100 on Vouch's measured behaviour index, from 1 real invocation trials against io.github.cyanheads/iana-registries-mcp-server, measured 6 Oct 2026 under methodology v0.2.0. Every measured component scored 100.
Component breakdown
| Component | Weight | Value |
|---|---|---|
| Reliability | 35% | not applicable |
| Schema integrity | 25% | 100.0 |
| Failure behaviour | 15% | not applicable |
| Latency | 15% | not applicable |
| Concurrency | 10% | not applicable |
Tool details
- Transport
- remote + stdio
- Credential class
- self-provisionable
- Input schema
- not declared
- Output schema
- not declared
- Side-effect classification
- unclassified
Score history
| Day | Score | Tier | Methodology |
|---|---|---|---|
| 2026-10-06 | 100.0 | shallow | v0.2.0 |
Probe evidence
| Probe | Outcomes |
|---|---|
| schema_integrity | pass: 1 |
Raw request/response logs are not archived yet — the outcome counts above are drawn directly from every recorded trial.
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