Claidex MCP server

• Registry namecom.claidex/failure-intelligenceverified in the MCP registry

The registry name sits under claidex.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-24
• Tools24
• Server calls itselfclaidex
• Server version1.0.0
• Protocol version2025-06-18

On 2026-10-24 the server answered initialize and tools/list without a sign-in. First answer in 177 ms.

• Its tools do every use case we checked: Trace terminated clinical trials back to their preclinical hypotheses; Read sourced mechanistic post-mortems of failed drug programs; Review failure mechanisms behind terminated oncology and neurology trials.
• Checked on 4 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP scoreafter a weeka score needs 7 daily checks: 4 so far
• What an agent can do with it3 of 3 use cases
• Use10 npm downloads a week
• Answeredmeasuring4 of the 7 daily checks it takes to print a share
• Median first answer728 ms
• Space in an agent's context≈ 3,695 tokensthe definitions of all its tools (24), which an agent carries on every turn
• Tool definitionsC · 74 of 100
• Typed results0 of 24 toolsdeclared outputSchema: results come typed, read once

• Parameters without a description: in 14 of 24
• Not saying whether it only reads or can destroy: 24 of 24

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• claidex_capabilities

  Return the Claidex MCP feature map, configured storage/model providers, safety controls, resources, prompts, and tool counts.

• claidex_claim_risk_matrix

  Search claims and summarize MRS bands, trial phases, failure archetypes, and high-risk programs for rapid diligence.

• claidex_health_snapshot

  Return Sentinel metrics, coverage, graph counts, recent automation runs, MRS bands, and preprint-watch summaries.

• claidex_research_prompt

  Compose a rigorous, reusable investigation prompt that tells an MCP client which Claidex tools and resources to use.

• claidex_tool_catalog

  Return the complete MCP tool catalog, optionally including full input schemas and filtering native versus agent-backed tools.

• consult_specialist_model

  Ask a specialist Gateway model for code, database/tool-calling, statistics, literature, preprint, or mechanistic synthesis support. Use for hard subproblems, second opinions, code generation/review, or complex synthesis.

• fetch

  Fetch a specific result returned by search. This compatibility tool supports OpenAI and ChatGPT remote MCP retrieval flows.

• fetch_research_url

  Fetch a public HTTPS research URL, JSON API response, package metadata endpoint, documentation page, or dataset preview. Blocks private/internal hosts and truncates large responses.

• get_claim_content

  Retrieve the complete text content of a specific Claidex Claim by its slug. Use this when you need to read the full post-mortem analysis, including hypothesis, failure mechanism, and prevention analysis.

• query_chembl

  Look up a drug or compound in ChEMBL. Returns mechanism of action, primary target, ChEMBL ID, max development phase, molecular type, and synonyms.

• query_clinicaltrials

  Search ClinicalTrials.gov for clinical trials. Can search by drug name, condition, target, or NCT ID. Returns trial status, phase, sponsor, primary endpoints, and why_stopped if terminated.

• query_failure_graph

  Query the Claidex failure graph for a specific gene target. Returns the Mechanism Risk Score (MRS), failure counts by phase and archetype, and all related claim slugs.

• query_openfda

  Query the FDA FAERS database for adverse event signals for a drug. Returns top adverse event terms, serious case count, and death count.

• query_opentargets

  Query Open Targets for target-disease association evidence. Returns genetic evidence score, clinical evidence, known drugs, tractability, and safety liabilities for a gene-disease pair.

• query_package_registry

  Look up package metadata from npm or PyPI before recommending code, analysis packages, API clients, or dataset tooling.

• rank_documents_by_embedding

  Embed a query and candidate documents, then rank documents by cosine similarity. Use for semantic matching, retrieval checks, clustering triage, and lightweight RAG over user-provided passages.

• rerank_documents

  Rerank candidate documents/passages against a query using a dedicated reranking model. Use after retrieval/search when exact relevance ordering matters.

• run_computation

  Evaluate deterministic mathematical expressions with optional variables. Use for algebra, matrices, vectors, transformations, descriptive numerical checks, and reproducible calculations. Does not execute arbitrary JavaScript or install…

• run_statistical_analysis

  Run a statistical analysis computation. Supports: Wilson confidence intervals, binomial proportions, phase transition success rates, power calculations, Bayesian posterior estimates, descriptive statistics, and two-proportion comparisons…

• search

  Search Claidex failure claims and preprint flags. This compatibility tool returns citation-ready results for OpenAI and ChatGPT remote MCP flows.

• search_claims

  Search the Claidex failure database for post-mortems matching a drug name, gene target, disease, failure archetype, or sponsor. Returns matching claims with title, slug, drug, target, disease, phase, failure archetype, Open Targets score…

• search_preprint_flags

  Search the Claidex Preprint Watch database for bioRxiv preprints flagged as contradicting the clinical failure record. Search by target gene, disease, or preprint title.

• search_pubmed

  Search PubMed for biomedical literature. Returns title, authors, journal, year, DOI, abstract, and PMID for each result.

• web_search

  Search the web for recent news, investor commentary, analyst notes, press releases, and conference coverage about drugs, clinical trials, or biomedical mechanisms.