io.github.cyanheads/iana-registries-mcp-server

io.github.cyanheads/iana-registries-mcp-server · v0.2.0 · marketing-and-seo

io.github.cyanheads/iana-registries-mcp-server is healthy: it completed an MCP handshake in 317 ms and exposes 10 tools.

Find IANA ports, MIME types, HTTP codes/fields, URI schemes, PENs, BCP 47 tags, RFCs, any registry.

Endpoint: https://iana-registries.caseyjhand.com/mcp (streamable-http)

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Facts

Users (last 30 days)0
HandshakeHealthy
Auth neededNone
Tool count10
Latency317 ms
Last checked (UTC)2026-10-16T07:20:34.322Z

Health history

Checked (UTC)StatusLatencyError
2026-10-16T07:20:34.322ZHealthy317
2026-10-15T03:25:37.120ZHealthy3927

Tools (10)

iana_lookup_portLook 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, sctp, dccp) separate
iana_lookup_media_typeLook 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 exact `type` lookup also
iana_lookup_http_statusLook 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 unassigned code returns fo
iana_lookup_http_fieldLook 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 Structured Field type w
iana_lookup_uri_schemeLook 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-known URI support.
iana_lookup_penLook 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 enterprise number are ass
iana_lookup_language_tagParse 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, a
iana_get_rfc_statusGet the current status of up to 10 RFCs, Internet-Drafts, or BCP/STD/FYI series in one call. Accepts "RFC 9110", "rfc9110", "9110", draft names with or without a revision suffix ("draft-ietf-httpbis-semantics-19"), series numbers ("BCP 14"), RFC and draft file names ("rfc9110.txt"), the URL of an RF
iana_search_registriesFind 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 defining documents. Cov
iana_get_registry_recordsRead 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` (exact match on the key column, or on the column `fie