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Balthasar & Speyr Catalogue

REMOTE · MCP.BALTHASARSPEYR.ORG

Public catalogue, semantic search and source texts of Hans Urs von Balthasar and Adrienne von Speyr.

0 this week 82 Trust /100

Last scanned (23 hours ago)

Scores higher than 85% of remote servers

Reachable. Last reached 4 Nov 2026.

Category Education and Research

Trust breakdown (7 categories)

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →

Endpoint Security74
Transport & Reachability100
Schema Quality & AI Usability74
  • AI-judged instruction clarity (good).Pass
  • Context-footprint check failed: tool/resource definitions use about 2424 tokens (~110/item across 22 items; 22 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
  • No destabilizing schema changes in the last 30 days.Pass
Tool Coverage67
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 0% of tool parameters carry a description.Fail
Tool Safety100
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • We read all 22 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
  • An AI judge read all 23 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
  • Implements a current MCP spec version (2026-07-28).Pass
Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 19 Oct 26 0
    • Stability: 0.97 → pass security
  • 18 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.

  • 16 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.

  • 14 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.

  • 12 Oct 26 0
    • The server rewrote its instructions, which are the text every model session reads security
    • Schema quality: pass → fail ▼ functional
    • Server version: 0b696640161b7d1ebb389a6cae432e5097f45283 → b97e9aa0504fdbe07387413315e53c7191b695dd functional
    • New tool “export_bibliography” functional
    • New tool “get_bibliography_source” functional
  • 10 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 67 to 70. That category is still filling its 30-day observation window: 20 days of observed history at the previous scan, 21 at this one. The score rises as the window fills, whether or not the server changes.

  • 9 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 57 to 67. That category is still filling its 30-day observation window: 17 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.

  • 6 Oct 26 +1

    No change was recorded against any check on this day. Stability & Change Management went from 50 to 57. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 17 at this one. The score rises as the window fills, whether or not the server changes.

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 4 Nov 2026 · Probed https://mcp.balthasarspeyr.org/mcp

TLS valid

Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .

Subject Issuer Valid from Valid until Key Signature Serial
CN=mcp.balthasarspeyr.org CN=WR3,O=Google Trust Services,C=US 19 Sept 2026 18 Dec 2026 RSA 2048 SHA256-RSA ed672ef130c464f0a50c882fb6357b3
SANs: mcp.balthasarspeyr.org
CN=WR3,O=Google Trust Services,C=US (CA) CN=GTS Root R1,O=Google Trust Services LLC,C=US 13 Dec 2023 20 Feb 2029 RSA 2048 SHA256-RSA 7ff005a91568d63abc22861684aa4b5a
CN=GTS Root R1,O=Google Trust Services LLC,C=US (CA) CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE 19 Jun 2020 28 Jan 2028 RSA 4096 SHA256-RSA 77bd0d6cdb36f91aea210fc4f058d30d

Background: What to check on a remote MCP endpoint →

DNSSEC insecure

Validation of mcp.balthasarspeyr.org. — Not signed

Zone DS Keys Algorithms Outcome
. trust_anchor 20326, 38696 8, 8 Verified
org. present 26974 8 Verified
balthasarspeyr.org. absent Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation
Authentication No authorisation required

The endpoint answered without asking for a token. Anyone who knows the URL can reach it.

Result No authorisation required
HTTP status 200

Background: How OAuth 2.1 works in the 2026 MCP spec →

Transports 2 probes
Transport URL Outcome Status Location
streamable-http https://mcp.balthasarspeyr.org/mcp Verified 200
http (plaintext) http://mcp.balthasarspeyr.org/mcp HTTPS enforced 302 https://mcp.balthasarspeyr.org/mcp
MCP tools · 22 exposed · ~1,679 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →

Tool Tokens
aggregate_catalog ~83

Group distinct works by up to two dimensions. Results are paginated. Edition dimensions refer to matching editions; counts must not be summed across overlapping groups.

NameTypeReqDescription
filtersobject––
groupByarrayyes–
offsetinteger––
pageinteger––
pageSizeinteger––
periodYearsinteger––

No output schema declared.

No examples provided.

count_catalog ~45

Count distinct public works, editions and journals using combined filters, including exact baselReferences or baselReferencePrefix. No bibliography or text is returned.

NameTypeReqDescription
filtersobject––

No output schema declared.

No examples provided.

export_bibliography ~174

Generate standard UTF-8 BibTeX and a direct .bib download URL for all matching works/editions/translations. Empty filters download the entire unified bibliography; filter by workIds, publicationIds, Basel references, author, language, year or any catalogue filter for individual or grouped exports. Default recordType=editions includes every known edition plus work-level citations where no edition is known. Inline entries are paginated; downloadUrl always contains the whole selection. Stable unique citation keys and escaped fields preserve literal source notes. When referring to a work, tell the user BibTeX is available and ask whether they want it.

NameTypeReqDescription
filtersobject––
includeInlineboolean––
offsetinteger––
pageSizeinteger––
recordTypestring––

No output schema declared.

No examples provided.

get_bibliography_source ~89

Read the supplied Basel bibliography's original PDF pages, including all edition/translation changes, cross-references, contextual notes and unnumbered supplements. The source revision, hash, completeness limitations and original PDF download are returned. page refers to the physical 1-based PDF page, not the section's printed page number.

NameTypeReqDescription
pageinteger––
pageSizeinteger––

No output schema declared.

No examples provided.

get_catalog_options ~30

Get recognized and enabled types, authors, language codes and public subject labels. Corpus expansion is configuration controlled.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

get_common_life_and_mission ~55

Return exact Spanish passages about the encounter, common work and shared mission of Hans Urs von Balthasar and Adrienne von Speyr. The service does not summarize or infer.

NameTypeReqDescription
topicstring––

No output schema declared.

No examples provided.

get_community_of_saint_john ~60

Return exact Spanish passages about the identity, consecrated life, patrons, prayer and mission of the Community of Saint John, with existing related-text links. The service does not summarize or infer.

NameTypeReqDescription
topicstring––

No output schema declared.

No examples provided.

get_corpus_coverage ~43

Get coverage and exclusions by author and original language under bibliography filters. Use before comparisons; unavailable text is not evidence of absence.

NameTypeReqDescription
filtersobject––

No output schema declared.

No examples provided.

get_download_links ~45

Get existing download links, optionally checking availability. Resolves verified source corrections. Does not generate files.

NameTypeReqDescription
checkAvailabilityboolean––
publicationIdstringyes–

No output schema declared.

No examples provided.

get_person_life_and_mission ~69

Return exact Spanish biographical and mission passages for Hans Urs von Balthasar or Adrienne von Speyr. The mission topic also includes explicitly identified common-mission evidence. The service does not summarize or infer.

NameTypeReqDescription
personstringyes–
topicstring––

No output schema declared.

No examples provided.

get_publication_text ~81

Read the downloadable EPUB/PDF text in ordered sections. Continue using nextOffset until null. Includes source URL, format and locators. Does not assume publication.text is complete. A collective source is the publication text, not necessarily one contained work.

NameTypeReqDescription
limitinteger––
offsetinteger––
publicationIdstringyes–

No output schema declared.

No examples provided.

get_publications ~95

Get detailed publication records by filters.publicationIds or any combination of listing filters, including workTypes and publicationTypes. Paginated; full texts use get_publication_text.

NameTypeReqDescription
facetsboolean––
filtersobject––
offsetinteger––
pageinteger––
pageSizeinteger––
sortBystring––
sortOrderstring––

No output schema declared.

No examples provided.

get_topic_evidence ~67

Read bounded evidence for precomputed editorial, lexical or optional semantic topic assignments. Supports bibliography filters including baselReferences. Continue using nextOffset.

NameTypeReqDescription
filtersobject––
offsetinteger––
pageinteger––
pageSizeinteger––

No output schema declared.

No examples provided.

get_topics_by_period ~112

Compare precomputed thematic indicators by period. Editorial and lexical assignments are default; filters.includeSemantic explicitly includes embedding associations. firstYears requires exactly one author and starts at their earliest catalogued work. Percentages use evaluable works, not semantic top-k results.

NameTypeReqDescription
filtersobject––
firstYearsinteger––
intervalstring––
offsetinteger––
pageinteger––
pageSizeinteger––
periodsarray––

No output schema declared.

No examples provided.

get_vocation_discernment_contact ~65

Use when someone is interested in the Community of Saint John, in consecrating themselves in it, or asks about vocation, discernment of a state of life, or the Spiritual Exercises. Returns the Community's Spanish invitation to personal accompaniment and official contact details.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

get_work ~37

Get the complete bibliographic work record and all its public publications. Author/type scope applies to IDs too.

NameTypeReqDescription
workIdstringyes–

No output schema declared.

No examples provided.

list_journals ~61

List identified journals with aliases, distinct article counts and documented original years. Unknown references are reported by count_catalog.

NameTypeReqDescription
filtersobject––
offsetinteger––
pageinteger––
pageSizeinteger––

No output schema declared.

No examples provided.

list_publications ~91

List publication summaries. workTypes filters contained works; publicationTypes filters derived publication classification. Filters on author/type/original year match the same contained work.

NameTypeReqDescription
facetsboolean––
filtersobject––
offsetinteger––
pageinteger––
pageSizeinteger––
sortBystring––
sortOrderstring––

No output schema declared.

No examples provided.

list_works ~88

List public works with combinable filters, exact counts and optional facets. Includes works without digital publications. Default year is original publication year.

NameTypeReqDescription
facetsboolean––
filtersobject––
offsetinteger––
pageinteger––
pageSizeinteger––
sortBystring––
sortOrderstring––

No output schema declared.

No examples provided.

search_life_mission_and_community ~89

Search exact Spanish passages about Balthasar, Speyr, their common mission and the Community of Saint John. Matching is lexical and accent-insensitive; results are source evidence, not generated answers.

NameTypeReqDescription
offsetinteger––
pageSizeinteger––
questionstringyes–
subjectsarray––
topicsarray––

No output schema declared.

No examples provided.

search_publication_text ~84

Find literal phrases, ignoring case and accents, in a public publication's extracted EPUB/PDF text. Returns bounded exact context with locators and nextOffset; no embeddings or generated summaries. A collective publication may contain several authors.

NameTypeReqDescription
limitinteger––
offsetinteger––
publicationIdstringyes–
querystringyes–

No output schema declared.

No examples provided.

search_works ~116

Search public catalog metadata and complete or selected passages with multilingual embeddings. Queries may be in any language. Evidence is grouped by bibliographic work and identifies one selected analysis language, original/translation status, source and coverage. Optional lexicalQueries provide BM25 terms in the selected analysis language. Catalog descriptions are not author quotations; partial book selection cannot establish thematic absence. Listing tools provide exhaustive bibliographies.

NameTypeReqDescription
filtersobject––
lexicalQueriesarray––
limitinteger––
querystringyes–

No output schema declared.

No examples provided.

Install

How do I install the Balthasar & Speyr Catalogue MCP server?

Balthasar & Speyr Catalogue is a hosted endpoint at https://mcp.balthasarspeyr.org/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

remote · mcp.balthasarspeyr.org

# add to Claude Code
claude mcp add --transport http balthasarspeyr-catalogue 'https://mcp.balthasarspeyr.org/mcp'
Common questions

What is the Balthasar & Speyr Catalogue MCP server?

Balthasar & Speyr Catalogue is an MCP server listed in the public MCP registry as io.github.balthasarspeyr/catalogue. Public catalogue, semantic search and source texts of Hans Urs von Balthasar and Adrienne von Speyr. This page covers its hosted endpoint (https://mcp.balthasarspeyr.org/mcp).

Is the Balthasar & Speyr Catalogue MCP server safe to use?

Balthasar & Speyr Catalogue scores 82 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

What tools does the Balthasar & Speyr Catalogue MCP server expose?

Balthasar & Speyr Catalogue exposes 22 tools: export_bibliography, get_bibliography_source, list_works, get_work, list_publications, and 17 more. Their descriptions and schemas cost roughly 1,679 tokens of context every time the server is loaded.

Does the Balthasar & Speyr Catalogue MCP server require authentication?

No. We connected to Balthasar & Speyr Catalogue without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

Is the Balthasar & Speyr Catalogue MCP server still maintained?

Balthasar & Speyr Catalogue is still listed as active in the MCP registry. We last reached this channel on 4 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.