Hydrogen Studies
REMOTE · HYDROGENSTUDIES.COM
Search, compare and summarize 2,200+ published studies on molecular hydrogen (H2) and health.
Available components
Last scanned (8 hours ago)
Scores higher than 66% of remote servers
Reachable. Last reached 24 Oct 2026.
Category Health and Science
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 Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability79
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 1056 tokens (~117/item across 9 items; 8 tools + 1 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 Management7
- Stability observed for 2 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage91
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 74% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 8 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 10 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
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.
- 23 Oct 26 0
- Stability: unverified → 0.03 ▲ functional
- 22 Oct 26 74
First indexed and scored.
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 24 Oct 2026 · Probed https://hydrogenstudies.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=hydrogenstudies.com | CN=WE1,O=Google Trust Services,C=US | 4 Sept 2026 | 3 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | ffa2b99972f5ee46136e014e2c93bd3a |
| SANs: hydrogenstudies.com, *.hydrogenstudies.com | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of hydrogenstudies.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| hydrogenstudies.com. | 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 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=31536000; includeSubDomains; preload |
| content-security-policy | default-src 'self';script-src 'self' https://*.googletagmanager.com https://www.google-analytics.com https://analytics.ahrefs.com https://static.cloudflareinsights.com;style-src 'self' 'unsafe-inline' https://fonts.googleapis.com;font-src 'self' https://fonts.gstatic.com;img-src 'self' data: https: blob:;connect-src 'self' https://*.google-analytics.com https://*.analytics.google.com https://*.googletagmanager.com https://api.anthropic.com https://analytics.ahrefs.com https://*.ingest.us.sentry.io https://*.ingest.sentry.io https://cloudflareinsights.com;frame-src 'self' https://www.youtube-nocookie.com https://www.youtube.com;object-src 'none';upgrade-insecure-requests;base-uri 'self';form-action 'self';frame-ancestors 'self';script-src-attr 'none' |
| x-content-type-options | nosniff |
| x-frame-options | SAMEORIGIN |
| referrer-policy | no-referrer |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://hydrogenstudies.com/mcp | Verified | 200 | |
| http (plaintext) | http://hydrogenstudies.com/mcp | HTTPS enforced | 301 | https://hydrogenstudies.com/mcp |
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 →
aggregate_studies Aggregate studies ~192
Count matching studies grouped by year, subject, design, delivery_method, outcome, country, condition or species — for trends and 'how many' questions. Unknown values are counted separately.
| Name | Type | Req | Description |
|---|---|---|---|
| condition | string | – | Condition hub slug or name, e.g. 'blood-pressure' or 'Blood Pressure' (see list_conditions) |
| delivery_method | string | – | How hydrogen was administered |
| design | string | – | Study design |
| group_by | string | yes | – |
| min_sample_size | integer | – | Minimum participants/animals |
| outcome | string | – | Direction of the reported hydrogen effect |
| query | string | – | Full-text search terms, e.g. 'exercise fatigue lactate' |
| subject | string | – | Who/what was studied |
| top | integer | – | Max buckets returned (default 40) |
| year_from | integer | – | – |
| year_to | integer | – | – |
No output schema declared.
No examples provided.
compare_evidence Compare evidence ~91
Side-by-side evidence profiles for 2–4 groups of studies, e.g. inhalation vs drinking water for one condition, or two conditions. Each group is a set of filters merged over the optional shared filters.
| Name | Type | Req | Description |
|---|---|---|---|
| groups | array | yes | – |
| shared | object | – | Filters applied to every group |
| top_studies | integer | – | Strongest studies listed per group (default 3) |
No output schema declared.
No examples provided.
find_related_studies Related studies ~46
Studies a given study cites, studies that cite it, and the most similar studies by shared health conditions.
| Name | Type | Req | Description |
|---|---|---|---|
| study | string | yes | Study id, slug, DOI or URL |
No output schema declared.
No examples provided.
get_condition_evidence Condition evidence profile ~106
Evidence profile for a health condition hub: how many studies, human vs animal vs in-vitro, number of human RCTs and participants, outcome mix, delivery methods, publication years, data coverage, and the strongest studies.
| Name | Type | Req | Description |
|---|---|---|---|
| condition | string | yes | Condition hub slug or name (see list_conditions) |
| subject | string | – | Restrict the profile to one subject type |
| top_studies | integer | – | How many strongest studies to list (default 5) |
No output schema declared.
No examples provided.
get_database_stats Database stats ~32
Size and makeup of the database: total studies, breakdown by subject and design, year range, and field coverage.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_study Get study ~92
Full record for one study: citation, design, population, H2 protocol (delivery, concentration, dosage), outcome, our plain-language summary and key finding, limitations, quality score with red flags, conditions/mechanisms, and links. Accepts an id, slug, DOI or study URL.
| Name | Type | Req | Description |
|---|---|---|---|
| study | string | yes | Study id, slug, DOI, or hydrogenstudies.com/study/... URL |
No output schema declared.
No examples provided.
list_conditions List conditions ~37
Every health condition hub with its study count, evidence grade (where reviewed) and page URL. Use the slug as the `condition` filter.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
search_studies Search studies ~204
Find molecular hydrogen studies by keywords and/or filters. Returns compact study records (design, subject, sample size, delivery method, outcome, key finding, url). Sorted by relevance when a query is given, otherwise by strength of evidence.
| Name | Type | Req | Description |
|---|---|---|---|
| condition | string | – | Condition hub slug or name, e.g. 'blood-pressure' or 'Blood Pressure' (see list_conditions) |
| delivery_method | string | – | How hydrogen was administered |
| design | string | – | Study design |
| limit | integer | – | Default 10 |
| min_sample_size | integer | – | Minimum participants/animals |
| offset | integer | – | – |
| outcome | string | – | Direction of the reported hydrogen effect |
| query | string | – | Full-text search terms, e.g. 'exercise fatigue lactate' |
| sort | string | – | – |
| subject | string | – | Who/what was studied |
| year_from | integer | – | – |
| year_to | integer | – | – |
No output schema declared.
No examples provided.
How do I install the Hydrogen Studies MCP server?
Hydrogen Studies is a hosted endpoint at https://hydrogenstudies.com/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 · hydrogenstudies.com
claude mcp add --transport http com-hydrogenstudies-research 'https://hydrogenstudies.com/mcp'
What is the Hydrogen Studies MCP server?
Hydrogen Studies is an MCP server listed in the public MCP registry as com.hydrogenstudies/research. Search, compare and summarize 2,200+ published studies on molecular hydrogen (H2) and health. This page covers its hosted endpoint (https://hydrogenstudies.com/mcp).
Is the Hydrogen Studies MCP server safe to use?
Hydrogen Studies scores 74 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 Hydrogen Studies MCP server expose?
Hydrogen Studies exposes 8 tools: search_studies, get_study, get_condition_evidence, compare_evidence, aggregate_studies, and 3 more. Their descriptions and schemas cost roughly 800 tokens of context every time the server is loaded.
Does the Hydrogen Studies MCP server require authentication?
No. We connected to Hydrogen Studies without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Hydrogen Studies MCP server still maintained?
Hydrogen Studies is still listed as active in the MCP registry. We last reached this channel on 24 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.