Iana Registries Mcp Server

Connect Remote server

claude mcp add --transport http iana-registries-mcp-server https://iana-registries.caseyjhand.com/mcp

{
  "mcpServers": {
    "iana-registries-mcp-server": {
      "url": "https://iana-registries.caseyjhand.com/mcp"
    }
  }
}

{
  "servers": {
    "iana-registries-mcp-server": {
      "type": "http",
      "url": "https://iana-registries.caseyjhand.com/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://iana-registries.caseyjhand.com/mcp

Tools 10 found in our last check

• iana_lookup_port

  Look up IANA service name and transport protocol port assignments. Pass exactly one of `port` (a number, 0–65535), `service` (an exact service name such as "postgresql"), or `keyword` (words matched against service names and descriptions). Results list every transport (tcp, udp,…

• iana_lookup_media_type

  Look up registered media (MIME) types. Pass exactly one of `type` (a full name such as "application/json"; parameters after ";" are ignored) or `keyword` (words matched against registered type names and status annotations, e.g. "geo json"; never against file extensions). An exac…

• iana_lookup_http_status

  Look up an HTTP status code in the IANA registry, or search reason phrases. Pass exactly one of `code` (100–599) or `keyword` (e.g. "too many"). Returns the registered phrase, its class, defining reference with section, and whether it is temporary, obsoleted, or unused; an unass…

• iana_lookup_http_field

  Look up a registered HTTP field (header or trailer) name. Pass exactly one of `name` (case-insensitive, e.g. "Cache-Status") or `keyword` (words matched against field names and comments). Returns the registration status — permanent, provisional, deprecated, or obsoleted — the St…

• iana_lookup_uri_scheme

  Look up a registered URI scheme. Pass exactly one of `scheme` (e.g. "mailto"; a trailing ":" or "://" is ignored) or `keyword` (words matched against scheme names and descriptions). Returns the status — permanent, provisional, or historical — description, references, and well-kn…

• iana_lookup_pen

  Look up a Private Enterprise Number (PEN). Pass exactly one of `pen` (a number such as 32473, or an OID under 1.3.6.1.4.1 such as 1.3.6.1.4.1.32473.1.2) or `organization` (words matched against organization names). Returns the organization and its OID prefix. Arcs below the ente…

• iana_lookup_language_tag

  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,…

• iana_get_rfc_status

  Get the current status of up to ten distinct RFCs, Internet-Drafts, or BCP/STD/FYI series per page from up to 1,000 input items. Canonical aliases resolve once. When more remain, deferred_ids previews the next ten, deferred_count counts the whole remainder, and next_ids_offset c…

• iana_search_registries

  Find IANA protocol registries and sub-registries by keyword over their titles and protocol categories, e.g. "tls cipher", "dns resource record", "protocol numbers". Returns the registry and sub-registry ids that iana_get_registry_records reads, with registration procedure and de…

• iana_get_registry_records

  Read records from any IANA XML registry by id, e.g. registry "tls-parameters" with subregistry "tls-parameters-4" (TLS Cipher Suites), "protocol-numbers", "http-methods", or "cbor-tags"; an iana.org/assignments URL also works. Filter with `value` on the key column or the column…

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