MCP HeartbeatTHE MCP OBSERVATORY
Public workspace

Explore

Evidence for your next connection.

Independent measurements of remote MCP servers. Every observation has a timestamp.

Read-only probes

MCP server · Data access / search

SpecProof

SpecProof: Search standards specs with MCP-ready precision.

Checks passed
11 / 22

3 failed · 8 not measured

Median response
504 ms

Median of successful probes over 7 days

30-day uptime
Not measured

Share of countable probes over 30 days, including daily rollups. Auth challenges are excluded.

Discovered tools
17

Tool definitions returned by this server

Independent monitoring

Health & checks

Status history

Responded

The server completed its last measured handshake. This is an observation, not a guarantee.

Last checked
Check summary by test group
Test areaPassedFailedUnmeasured
ConnectionCan a client connect and discover tools?
500
Reliability & speedDoes it respond consistently and quickly?
004
Access & authenticationWhat is required to use this server?
102
Tool qualityAre the tool definitions usable by an agent?
220
Publisher identityCan the publisher be traced to its source?
312

Unmeasured means there is not enough evidence to decide. How these checks work

Inspect individual checks 22 recorded

Core

  • Pass
    Reachable

    Latest probe returned HTTP 200 in 504 ms.

  • Pass
    Valid handshake

    protocolVersion 2025-11-25, serverInfo.name 3gpp-spec-server.

  • Pass
    Lists tools

    tools/list returned 17 tools.

  • Pass
    Current protocol

    Negotiated 2025-11-25. The bar is 2025-06-18 or newer.

  • Pass
    HTTPS

    The endpoint URL is https.

Performance

  • Not measured
    Fast (p50)

    Median latency 504 ms over 1 samples in 7 days. The bar is 1000 ms. Need at least 5 samples.

  • Not measured
    Consistent (p95)

    95th percentile 504 ms over 1 samples in 7 days. The bar is 3000 ms. Need at least 20 samples.

  • Not measured
    Reliable (uptime)

    1 of 1 attempts returned a tool list in 30 days (100%). The bar is 99%. Need at least 30 samples.

  • Not measured
    Stable tool list

    Fewer than two successful probes in 30 days, so tool-list stability is not measured.

Access

  • Pass
    Open access

    tools/list succeeded with no credential, and the record declares none.

  • Not measured
    Standard auth

    Auth is not required, so the OAuth metadata check does not apply.

  • Not measured
    Free tier cited

    No publisher quote has been checked.

Tools

  • Pass
    Tools described

    Every tool description is at least 20 characters.

  • Pass
    Valid input schemas

    Every inputSchema is a JSON Schema object.

  • Fail
    Parameters documented

    0 of 49 parameters have a description (0%). The bar is 80%.

  • Fail
    Safety hints

    6 tools set neither readOnlyHint nor destructiveHint.

Publisher

  • Pass
    Verified namespace

    Listed in the Official MCP Registry.

  • Pass
    Website matches publisher

    The website host matches the reverse-domain namespace.

  • Pass
    Source repo linked

    A repository URL is on file.

  • Not measured
    Repo owner matches

    This namespace is not an io.github login, so the owner comparison does not apply.

  • Fail
    Recently updated

    Updated 2026-02-01T20:43:12.895842Z, which is older than 180 days.

  • Not measured
    Open-source licence

    The GitHub licence lookup has not returned an OSI result yet.

Start using SpecProof

Connect to this server

Choose your client, copy the configuration, then enable the server in your client’s MCP settings.

Run this command in your terminal, then restart Claude Code.

Claude Code

claude mcp add --transport http specproof https://mcp.specproof.ai/

Capabilities

Tools 17

build_cross_spec_suite

Assemble the normative requirements for one procedure across a spec AND the specs it normatively references — a procedure like registration or handover is never described in a single document. Returns a cited suite plan; feed the requirement_ids to generate_tests. Args: spec_base: The anchor spec, e.g. "23502" or "38331" keyword: The procedure/topic, e.g. "registration", "handover", "authentication" include_references: Also pull matching clauses from specs this one references (default: True) limit: Max requirements in the plan (default: 20, max: 50)

Discovered
diff_spec_versions

Diff two versions of a specification at the NORMATIVE level: which requirements were added, removed, or reworded. Not a textual diff — a clause that merely moved page or was recased counts as unchanged. Args: spec_base: Spec identity without the version, e.g. "38331" or "23501" from_version: Older version label, e.g. "j20" (default: the second-newest in the corpus) to_version: Newer version label, e.g. "j30" (default: the newest in the corpus) obligation: Only report changes at this strength — "must", "must_not", "should", "should_not", "may" limit: Max requirements to list per bucket (default: 25)

Discovered
generate_tests

Generate a cited, runnable conformance test that verifies one normative requirement. The test is grounded in the requirement sentence plus its surrounding clause from the corpus, and every test cites the spec, section and page it enforces. If the requirement is not testable (boilerplate, scope text), the generator abstains rather than inventing a test. Args: requirement_id: The requirement's id, as shown by get_requirements target: "pytest" for a runnable Python test module, or "gherkin" for a reviewable .feature file (default: pytest)

Discovered
get_database_stats

Get comprehensive database and system statistics.

Discovered
get_document_content

Get specific content from a specification document. Args: filename: Document filename (required) page_range: Page range like "10-15" or single page "20" (optional) section: Section title filter (optional)

Discovered
get_most_referenced_specs

Get the most referenced (most important) specifications ranked by incoming reference count. Args: doc_type: Filter by "3gpp" or "ietf" series: Filter by series number limit: Maximum results (default: 20)

Discovered
get_relationship_graph

Get a relationship graph centered on a specification, expanding N hops. Returns JSON with nodes and edges suitable for graph visualization. Each node includes title, series, working group, and reference counts. Each edge includes source, target, reference type, and count. Args: spec_number: Center specification number depth: Number of hops to expand (1-3, default: 1) reference_type: Filter by type - "normative", "informative" (optional)

Discovered
get_requirements

List normative requirements (RFC 2119 / BCP 14 "shall/should/may" statements) extracted from specifications, each cited back to its source clause. Args: spec_number: Filter by spec number, e.g. "23.501" or "RFC 9110" (optional) obligation: Filter by strength - "must", "must_not", "should", "should_not", or "may" (optional) search: Keyword to search within the requirement text (optional) limit: Maximum number of requirements to return (default: 30, max: 100)

Discovered
get_rfc_lineage

An RFC's revision history. RFCs are immutable — an RFC is never revised, it is obsoleted or updated by a *different* RFC — so this Obsoletes/Updates graph, not a version diff, IS its change history. Use it to find out whether an RFC you depend on has been superseded. Args: rfc: The RFC, e.g. "7231", "rfc7231" or "RFC 7231"

Discovered
get_schema_definitions

Look up formal, machine-checkable structure defined in the specifications: ASN.1 types (3GPP RRC/NAS message grammars) and JSON Schema / OpenAPI models (5G Service Based Interfaces). Prefer this over prose search when the question is about a message's *structure* — field names, types, ranges, optionality. The definition is returned verbatim from the spec, so it is exact rather than recalled. Args: name: Type or schema name, e.g. "RRCSetup", "MeasConfig", "SmContextCreateData" spec_number: Restrict to a spec, e.g. "38.331" kind: "asn1", "openapi" or "json_schema" limit: Maximum definitions to return (default: 10, max: 25)

Discovered
get_series_overview

Get an overview of all specification series with document counts, reference statistics, and working group assignments.

Discovered
get_spec_dependents

Get all specifications that reference a given spec (reverse lookup). Args: spec_number: Specification number to find dependents of max_results: Maximum results (default: 50)

Discovered
get_spec_metadata

Get enriched metadata for specifications with filtering. Args: spec_number: Filter by spec number (partial match) series: Filter by series (e.g., "26" for 26.xxx codecs) working_group: Filter by working group (e.g., "SA4") doc_class: Filter by document class - "TS" or "TR" limit: Maximum results (default: 50)

Discovered
get_spec_references

Get all specifications referenced by a given spec. Args: spec_number: Specification number (e.g., "23.501", "26.230") reference_type: Filter by type - "normative", "informative", "inline" (optional)

Discovered
list_documents

List available specification documents. Args: doc_type: Filter by document type - "3gpp", "ietf", or "mpeg" (optional) search_pattern: Search pattern for spec number or title (optional) limit: Maximum number of results (default: 20, max: 100)

Discovered
search_specifications

Search across 3GPP, IETF, and Multimedia specification documents using full-text search. Args: query: Search query terms (required) doc_type: Filter by document type - "3gpp", "ietf", or "mpeg" (optional) spec_number: Filter by specification number (optional) max_results: Maximum number of results to return (default: 10, max: 50)

Discovered
semantic_search

Perform semantic search using vector embeddings with FAISS acceleration. Args: query: Natural language search query (required) max_results: Maximum number of results to return (default: 5, max: 20) similarity_threshold: Minimum similarity threshold 0.0-1.0 (default: 0.3) index_type: FAISS index type - "hnsw", "ivf", or "flat" (optional, auto-selected)

Discovered

Recent measurements

Probe history

View status
Latest stored probes. Raw probe rows are kept for 14 days.
CheckedResultResponseTools
Connected504 ms17