mitre-cwe-mcp-server

io.github.cyanheads/mitre-cwe-mcp-serverVersion 0.3.0

Explore MITRE CWE weaknesses, CAPEC attack patterns, mitigations, code examples, and mappings.

Status

Responds272 msNov 14, 2026, 14:48 UTCAnswered our handshake without sign-in.

Registry data may be out of date

We could not refresh it, so this page shows the last copy.

Last checked: Nov 14, 2026, 14:48 UTC
Latency: 272 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://mitre-cwe.caseyjhand.com/mcpResponds272 msNov 14, 2026, 14:48 UTC

No sign-in

Claude Code

claude mcp add --transport http mitre-cwe-mcp-server https://mitre-cwe.caseyjhand.com/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: mitre-cwe-mcp-server
Remote MCP server URL: https://mitre-cwe.caseyjhand.com/mcp

Cursor

{
  "mcpServers": {
    "mitre-cwe-mcp-server": {
      "url": "https://mitre-cwe.caseyjhand.com/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"mitre-cwe-mcp-server","type":"http","url":"https://mitre-cwe.caseyjhand.com/mcp"}'

Streamable HTTP

npm: @cyanheads/mitre-cwe-mcp-server 0.3.0

Package only

npm (npx)

claude mcp add mitre-cwe-mcp-server -- npx -y @cyanheads/mitre-cwe-mcp-server@0.3.0

Streamable HTTP

npm: @cyanheads/mitre-cwe-mcp-server 0.3.0

Package only

npm (npx)

claude mcp add mitre-cwe-mcp-server -- npx -y @cyanheads/mitre-cwe-mcp-server@0.3.0

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Tools

7 tools

Tools of mitre-cwe-mcp-server
	Description		Read-only	Idempotent	Open world
`cwe_get_attack_pattern`Retrieve CAPEC attack patterns, categories, and views by ID, such as CAPEC-66, CAPEC66, or 66, including Deprecated and Obsolete records; each entry’s type says which. Processes the first 20 distinct positions in submission order and lists later positions in deferredIds; a CWE ID or an item that is no ID returns in notFound with recovery guidance; only an item holding a control character other than whitespace, or a non-ID item over 150 characters, rejects the whole call. Patterns default to summary, prerequisites, execution, mitigations, and mappings. Request relations on a pattern for its recorded relationships and direct childAttackPatterns. Categories and views default to summary (the category summary or view objective) and relations (members in source order, or a filter-defined view’s source XPath filterDefinition). Views CAPEC-1000 (Mechanisms of Attack) and CAPEC-3000 (Domains of Attack) are entry points for browsing patterns by category. Request notes for recorded MITRE notes. Selected sections are complete; an empty sections array requests an outline with section sizes. Recorded CWE and ATT&CK mappings are incomplete and do not establish current ATT&CK validation.	Retrieve CAPEC attack patterns, categories, and views by ID, such as CAPEC-66, CAPEC66, or 66, including Deprecated and Obsolete records; each entry’s type says which. Processes the first 20 distinct positions in submission order and lists later positions in deferredIds; a CWE ID or an item that is no ID returns in notFound with recovery guidance; only an item holding a control character other than whitespace, or a non-ID item over 150 characters, rejects the whole call. Patterns default to summary, prerequisites, execution, mitigations, and mappings. Request relations on a pattern for its recorded relationships and direct childAttackPatterns. Categories and views default to summary (the category summary or view objective) and relations (members in source order, or a filter-defined view’s source XPath filterDefinition). Views CAPEC-1000 (Mechanisms of Attack) and CAPEC-3000 (Domains of Attack) are entry points for browsing patterns by category. Request notes for recorded MITRE notes. Selected sections are complete; an empty sections array requests an outline with section sizes. Recorded CWE and ATT&CK mappings are incomplete and do not establish current ATT&CK validation.	Not declared	Yes	Yes	Yes
`cwe_get_hierarchy`Navigate live CWE parents, children, ancestors, or descendants for a weakness, category, grouping, or view. Discover IDs with cwe_search_weaknesses or cwe_list_reference topic views. The default view is 1000; set viewId all for every view. primaryOnly applies only to ancestors. Edges point from parent to child and retain view identity; follow nextCursor for more edges. Continuations re-fetch the traversal and reject changed topology. Empty relations are successful; upstream failures remain errors. Node names come from the loaded catalog and may lag live IDs.	Navigate live CWE parents, children, ancestors, or descendants for a weakness, category, grouping, or view. Discover IDs with cwe_search_weaknesses or cwe_list_reference topic views. The default view is 1000; set viewId all for every view. primaryOnly applies only to ancestors. Edges point from parent to child and retain view identity; follow nextCursor for more edges. Continuations re-fetch the traversal and reject changed topology. Empty relations are successful; upstream failures remain errors. Node names come from the loaded catalog and may lag live IDs.	Not declared	Yes	Yes	Yes
`cwe_get_view`Read a CWE view objective, audience, status, source filter, recorded notes, and direct members in published order. Navigation views list top-level members rather than every descendant; use cwe_get_hierarchy for navigation or cwe_search_weaknesses with viewId for weakness membership closure. A filter-defined (Implicit) view lists no members: its filterDefinition is the source XPath that defines membership, and cwe_search_weaknesses with its viewId returns the weaknesses that filter selects; when the filter has a part this server does not evaluate, the guidance says so and that search returns none with a disclosure. Unknown and non-view IDs return a structured miss. Follow nextCursor for remaining direct members.	Read a CWE view objective, audience, status, source filter, recorded notes, and direct members in published order. Navigation views list top-level members rather than every descendant; use cwe_get_hierarchy for navigation or cwe_search_weaknesses with viewId for weakness membership closure. A filter-defined (Implicit) view lists no members: its filterDefinition is the source XPath that defines membership, and cwe_search_weaknesses with its viewId returns the weaknesses that filter selects; when the filter has a part this server does not evaluate, the guidance says so and that search returns none with a disclosure. Unknown and non-view IDs return a structured miss. Follow nextCursor for remaining direct members.	Not declared	Yes	Yes	Yes
`cwe_get_weakness`Retrieve CWE weaknesses, categories, or groupings by ID, such as CWE-79, CWE79, or 79. Processes the first 20 distinct positions in submission order and lists later positions in deferredIds; a view, a CAPEC ID, or an item that is no ID returns in notFound with recovery guidance; only an item holding a control character other than whitespace, or a non-ID item over 150 characters, rejects the whole call. Defaults to summary, consequences, mitigations, and relations. Summary carries recorded alternate terms such as XSS, ordinalities (Primary, Resultant, Indirect), and background details; the notes section, outside the defaults, returns every note MITRE records, such as Relationship, Maintenance, Terminology, and Research Gap notes. Selected sections are complete; an empty sections array requests an outline with section sizes. exampleLanguage, exampleOffset, and exampleLimit select a complete source-ordered page of section examples: with sections omitted, setting any of them to a non-default value adds examples after the defaults; explicit sections without examples ignore them, and guidance gives the re-call that adds examples. Categories and groupings are organizational entries, not vulnerability root causes.	Retrieve CWE weaknesses, categories, or groupings by ID, such as CWE-79, CWE79, or 79. Processes the first 20 distinct positions in submission order and lists later positions in deferredIds; a view, a CAPEC ID, or an item that is no ID returns in notFound with recovery guidance; only an item holding a control character other than whitespace, or a non-ID item over 150 characters, rejects the whole call. Defaults to summary, consequences, mitigations, and relations. Summary carries recorded alternate terms such as XSS, ordinalities (Primary, Resultant, Indirect), and background details; the notes section, outside the defaults, returns every note MITRE records, such as Relationship, Maintenance, Terminology, and Research Gap notes. Selected sections are complete; an empty sections array requests an outline with section sizes. exampleLanguage, exampleOffset, and exampleLimit select a complete source-ordered page of section examples: with sections omitted, setting any of them to a non-default value adds examples after the defaults; explicit sections without examples ignore them, and guidance gives the re-call that adds examples. Categories and groupings are organizational entries, not vulnerability root causes.	Not declared	Yes	Yes	Yes
`cwe_list_reference`List loaded CWE/CAPEC vocabulary, every CWE view, workflow guidance, or catalog versions and refresh health. Filter requires every whitespace-separated token in an item label, each at a word start or camelCase hump (script finds JavaScript). Tokens of at least four Unicode letters also match after exactly one un or mis prefix at a word start; spelling coincidences can match. An exact closed spelling also matches Unicode letter words joined by single ASCII hyphens. Omit filter to browse. Platforms distinguishes example code languages from platform names and classes. Follow nextCursor for complete lists; limits above 100 are capped with disclosure.	List loaded CWE/CAPEC vocabulary, every CWE view, workflow guidance, or catalog versions and refresh health. Filter requires every whitespace-separated token in an item label, each at a word start or camelCase hump (script finds JavaScript). Tokens of at least four Unicode letters also match after exactly one un or mis prefix at a word start; spelling coincidences can match. An exact closed spelling also matches Unicode letter words joined by single ASCII hyphens. Omit filter to browse. Platforms distinguishes example code languages from platform names and classes. Follow nextCursor for complete lists; limits above 100 are capped with disclosure.	Not declared	Yes	Yes	Yes
`cwe_search_attack_patterns`Search CAPEC attack patterns by every whitespace-separated text token, recorded CWE or ATT&CK mapping, abstraction, severity, or likelihood. Text tokens match at word starts or camelCase humps; tokens of at least four Unicode letters also match after exactly one un or mis prefix at a word start (config finds misconfiguration), with possible spelling coincidences. An exact closed spelling also matches Unicode letter words joined by single ASCII hyphens (hardcoded finds hard-coded). Parent ATT&CK techniques include recorded subtechniques; CWE mappings are exact without hierarchy expansion. Omit filters to browse. Deprecated and Obsolete patterns are excluded by default. Mappings are incomplete and do not validate current ATT&CK coverage. Results order by all tokens in the name or in one recorded alternate term such as MITM, then all in the description, then any other match, then numeric ID; use cwe_get_attack_pattern for complete sections and follow nextCursor for remaining matches.	Search CAPEC attack patterns by every whitespace-separated text token, recorded CWE or ATT&CK mapping, abstraction, severity, or likelihood. Text tokens match at word starts or camelCase humps; tokens of at least four Unicode letters also match after exactly one un or mis prefix at a word start (config finds misconfiguration), with possible spelling coincidences. An exact closed spelling also matches Unicode letter words joined by single ASCII hyphens (hardcoded finds hard-coded). Parent ATT&CK techniques include recorded subtechniques; CWE mappings are exact without hierarchy expansion. Omit filters to browse. Deprecated and Obsolete patterns are excluded by default. Mappings are incomplete and do not validate current ATT&CK coverage. Results order by all tokens in the name or in one recorded alternate term such as MITM, then all in the description, then any other match, then numeric ID; use cwe_get_attack_pattern for complete sections and follow nextCursor for remaining matches.	Not declared	Yes	Yes	Yes
`cwe_search_weaknesses`Search CWE weaknesses by all text tokens, exact platform or consequence vocabulary, abstraction, status, mapping usage, view membership, a recorded taxonomy mapping (taxonomy name or entry ID such as CERT C ARR30-C), or a CVE that MITRE cites as an observed example. Text tokens match at word starts or camelCase humps; tokens of at least four Unicode letters also match after exactly one un or mis prefix at a word start (trusted finds untrusted), with possible spelling coincidences. An exact closed spelling also matches Unicode letter words joined by single ASCII hyphens (hardcoded finds hard-coded). Text never matches an entry ID or CVE. When replacing one platform filter with its platform-independent class adds matches, a notice gives that repeat. Omit filters to browse; categories and groupings are excluded. Each result carries MITRE’s mapping usage, which says whether the entry may be used to map a vulnerability, and, under a taxonomy or CVE filter, every mapping or observed example that matched. Results order by all tokens in the name or in one recorded alternate term such as XSS, then all in the description, then any other match, then numeric ID. Description previews contain the first sentence; use cwe_get_weakness for complete sections. Follow nextCursor for remaining matches.	Search CWE weaknesses by all text tokens, exact platform or consequence vocabulary, abstraction, status, mapping usage, view membership, a recorded taxonomy mapping (taxonomy name or entry ID such as CERT C ARR30-C), or a CVE that MITRE cites as an observed example. Text tokens match at word starts or camelCase humps; tokens of at least four Unicode letters also match after exactly one un or mis prefix at a word start (trusted finds untrusted), with possible spelling coincidences. An exact closed spelling also matches Unicode letter words joined by single ASCII hyphens (hardcoded finds hard-coded). Text never matches an entry ID or CVE. When replacing one platform filter with its platform-independent class adds matches, a notice gives that repeat. Omit filters to browse; categories and groupings are excluded. Each result carries MITRE’s mapping usage, which says whether the entry may be used to map a vulnerability, and, under a taxonomy or CVE filter, every mapping or observed example that matched. Results order by all tokens in the name or in one recorded alternate term such as XSS, then all in the description, then any other match, then numeric ID. Description previews contain the first sentence; use cwe_get_weakness for complete sections. Follow nextCursor for remaining matches.	Not declared	Yes	Yes	Yes

Details

Registry status: Active
Published: Nov 11, 2026
Updated: Nov 11, 2026
Website: Not given
Repository: https://github.com/cyanheads/mitre-cwe-mcp-server⁠ (opens in a new tab)
Categories: Uncategorized
GDPR: Not declared

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