Koskamo

Hydrogen Studies MCP

This MCP server provides read-only access to a curated database of 2,276 peer-reviewed studies on molecular hydrogen (H2) health. It enables agents to search studies, profile evidence for specific health conditions, compare delivery methods, and aggregate study counts, supporting both researchers and the general public with plain-language summaries and structured metadata.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Hydrogen Studies MCP logo, by Echo Technologies LLCVendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-01Operated by Echo Technologies LLC
MCP endpoint (Streamable HTTP)
https://hydrogenstudies.com/mcp
Vendor documentation

What you can do with it

  • Search studies by condition or body system
  • Profile evidence for a specific health condition
  • Compare hydrogen delivery methods
  • Aggregate study counts by topic

Source and maintenance

Vendor evidenceRegistry 1.1.0
mcp-registry: com.hydrogenstudies/research@1.1.0Project website

Protocol and capabilities

Server
hydrogen-studies 1.0.0
MCP protocol
2025-06-18
Tools
8 advertised
Resources
1 advertised
Resource templates
0 advertised
Prompts
1 advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": true
  },
  "prompts": {
    "listChanged": true
  },
  "resources": {
    "listChanged": true
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Hydrogen Studies (https://hydrogenstudies.com) is a curated database of published research on molecular hydrogen (H2) — drinking hydrogen-rich water, inhalation, hydrogen-rich saline and more. How to use these tools well: - Start broad with search_studies or get_condition_evidence, then drill into individual studies with get_study. - Use compare_evidence for "X vs Y" questions and aggregate_studies for counts and trends. - Always separate human evidence (subject "human"; design rct > controlled_trial > uncontrolled_trial > observational > case_report) from animal and in-vitro work, and say how many human trials and participants an answer rests on. - Cite studies with their hydrogenstudies.com url (and doi_url where useful). - Report coverage honestly: fields like design, outcome and delivery method are unknown for some studies; the tools count unknowns separately rather than guessing. - These are research summaries, not medical advice. Do not present findings as treatments or cures; most human trials are small. - Disclosure: Hydrogen Studies is built and funded by Echo Technologies LLC, a maker of hydrogen water products. Mention this when a user asks about bias or funding.

Tools

8 advertised

search_studies — Search studies
Advertised by the server during the last successful anonymous check.
Advertised read-only

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.

search_studies input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "sort": {
      "enum": [
        "relevance",
        "evidence",
        "newest",
        "quality"
      ],
      "type": "string"
    },
    "limit": {
      "type": "integer",
      "maximum": 50,
      "minimum": 1,
      "description": "Default 10"
    },
    "query": {
      "type": "string",
      "maxLength": 300,
      "description": "Full-text search terms, e.g. 'exercise fatigue lactate'"
    },
    "design": {
      "enum": [
        "rct",
        "controlled_trial",
        "uncontrolled_trial",
        "observational",
        "case_report",
        "meta_analysis",
        "review",
        "animal",
        "in_vitro",
        "other"
      ],
      "type": "string",
      "description": "Study design"
    },
    "offset": {
      "type": "integer",
      "minimum": 0
    },
    "outcome": {
      "enum": [
        "positive",
        "neutral",
        "negative",
        "mixed"
      ],
      "type": "string",
      "description": "Direction of the reported hydrogen effect"
    },
    "subject": {
      "enum": [
        "human",
        "animal",
        "in_vitro",
        "review"
      ],
      "type": "string",
      "description": "Who/what was studied"
    },
    "year_to": {
      "type": "integer",
      "maximum": 2100,
      "minimum": 1900
    },
    "condition": {
      "type": "string",
      "maxLength": 100,
      "description": "Condition hub slug or name, e.g. 'blood-pressure' or 'Blood Pressure' (see list_conditions)"
    },
    "year_from": {
      "type": "integer",
      "maximum": 2100,
      "minimum": 1900
    },
    "delivery_method": {
      "enum": [
        "inhalation",
        "drinking_water",
        "hydrogen_saline",
        "culture_medium",
        "bathing",
        "topical",
        "tablet",
        "mixed",
        "other"
      ],
      "type": "string",
      "description": "How hydrogen was administered"
    },
    "min_sample_size": {
      "type": "integer",
      "minimum": 1,
      "description": "Minimum participants/animals"
    }
  },
  "additionalProperties": false
}
search_studies annotations
{
  "title": "Search studies",
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}
get_study — Get study
Advertised by the server during the last successful anonymous check.
Advertised read-only

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.

get_study input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "study"
  ],
  "properties": {
    "study": {
      "type": "string",
      "maxLength": 300,
      "minLength": 1,
      "description": "Study id, slug, DOI, or hydrogenstudies.com/study/... URL"
    }
  },
  "additionalProperties": false
}
get_study annotations
{
  "title": "Get study",
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}
get_condition_evidence — Condition evidence profile
Advertised by the server during the last successful anonymous check.
Advertised read-only

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.

get_condition_evidence input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "condition"
  ],
  "properties": {
    "subject": {
      "enum": [
        "human",
        "animal",
        "in_vitro",
        "review"
      ],
      "type": "string",
      "description": "Restrict the profile to one subject type"
    },
    "condition": {
      "type": "string",
      "maxLength": 100,
      "minLength": 1,
      "description": "Condition hub slug or name (see list_conditions)"
    },
    "top_studies": {
      "type": "integer",
      "maximum": 20,
      "minimum": 1,
      "description": "How many strongest studies to list (default 5)"
    }
  },
  "additionalProperties": false
}
get_condition_evidence annotations
{
  "title": "Condition evidence profile",
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}
compare_evidence — Compare evidence
Advertised by the server during the last successful anonymous check.
Advertised read-only

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.

compare_evidence input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "groups"
  ],
  "properties": {
    "groups": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "label"
        ],
        "properties": {
          "label": {
            "type": "string",
            "maxLength": 60,
            "minLength": 1
          },
          "query": {
            "$ref": "#/properties/shared/properties/query"
          },
          "design": {
            "$ref": "#/properties/shared/properties/design"
          },
          "outcome": {
            "$ref": "#/properties/shared/properties/outcome"
          },
          "subject": {
            "$ref": "#/properties/shared/properties/subject"
          },
          "year_to": {
            "$ref": "#/properties/shared/properties/year_to"
          },
          "condition": {
            "$ref": "#/properties/shared/properties/condition"
          },
          "year_from": {
            "$ref": "#/properties/shared/properties/year_from"
          },
          "delivery_method": {
            "$ref": "#/properties/shared/properties/delivery_method"
          },
          "min_sample_size": {
            "$ref": "#/properties/shared/properties/min_sample_size"
          }
        },
        "additionalProperties": false
      },
      "maxItems": 4,
      "minItems": 2
    },
    "shared": {
      "type": "object",
      "properties": {
        "query": {
          "type": "string",
          "maxLength": 300,
          "description": "Full-text search terms, e.g. 'exercise fatigue lactate'"
        },
        "design": {
          "enum": [
            "rct",
            "controlled_trial",
            "uncontrolled_trial",
            "observational",
            "case_report",
            "meta_analysis",
            "review",
            "animal",
            "in_vitro",
            "other"
          ],
          "type": "string",
          "description": "Study design"
        },
        "outcome": {
          "enum": [
            "positive",
            "neutral",
            "negative",
            "mixed"
          ],
          "type": "string",
          "description": "Direction of the reported hydrogen effect"
        },
        "subject": {
          "enum": [
            "human",
            "animal",
            "in_vitro",
            "review"
          ],
          "type": "string",
          "description": "Who/what was studied"
        },
        "year_to": {
          "type": "integer",
          "maximum": 2100,
          "minimum": 1900
        },
        "condition": {
          "type": "string",
          "maxLength": 100,
          "description": "Condition hub slug or name, e.g. 'blood-pressure' or 'Blood Pressure' (see list_conditions)"
        },
        "year_from": {
          "type": "integer",
          "maximum": 2100,
          "minimum": 1900
        },
        "delivery_method": {
          "enum": [
            "inhalation",
            "drinking_water",
            "hydrogen_saline",
            "culture_medium",
            "bathing",
            "topical",
            "tablet",
            "mixed",
            "other"
          ],
          "type": "string",
          "description": "How hydrogen was administered"
        },
        "min_sample_size": {
          "type": "integer",
          "minimum": 1,
          "description": "Minimum participants/animals"
        }
      },
      "description": "Filters applied to every group",
      "additionalProperties": false
    },
    "top_studies": {
      "type": "integer",
      "maximum": 10,
      "minimum": 0,
      "description": "Strongest studies listed per group (default 3)"
    }
  },
  "additionalProperties": false
}
compare_evidence annotations
{
  "title": "Compare evidence",
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}
aggregate_studies — Aggregate studies
Advertised by the server during the last successful anonymous check.
Advertised read-only

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.

aggregate_studies input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "group_by"
  ],
  "properties": {
    "top": {
      "type": "integer",
      "maximum": 100,
      "minimum": 1,
      "description": "Max buckets returned (default 40)"
    },
    "query": {
      "type": "string",
      "maxLength": 300,
      "description": "Full-text search terms, e.g. 'exercise fatigue lactate'"
    },
    "design": {
      "enum": [
        "rct",
        "controlled_trial",
        "uncontrolled_trial",
        "observational",
        "case_report",
        "meta_analysis",
        "review",
        "animal",
        "in_vitro",
        "other"
      ],
      "type": "string",
      "description": "Study design"
    },
    "outcome": {
      "enum": [
        "positive",
        "neutral",
        "negative",
        "mixed"
      ],
      "type": "string",
      "description": "Direction of the reported hydrogen effect"
    },
    "subject": {
      "enum": [
        "human",
        "animal",
        "in_vitro",
        "review"
      ],
      "type": "string",
      "description": "Who/what was studied"
    },
    "year_to": {
      "type": "integer",
      "maximum": 2100,
      "minimum": 1900
    },
    "group_by": {
      "enum": [
        "year",
        "subject",
        "design",
        "delivery_method",
        "outcome",
        "country",
        "condition",
        "species"
      ],
      "type": "string"
    },
    "condition": {
      "type": "string",
      "maxLength": 100,
      "description": "Condition hub slug or name, e.g. 'blood-pressure' or 'Blood Pressure' (see list_conditions)"
    },
    "year_from": {
      "type": "integer",
      "maximum": 2100,
      "minimum": 1900
    },
    "delivery_method": {
      "enum": [
        "inhalation",
        "drinking_water",
        "hydrogen_saline",
        "culture_medium",
        "bathing",
        "topical",
        "tablet",
        "mixed",
        "other"
      ],
      "type": "string",
      "description": "How hydrogen was administered"
    },
    "min_sample_size": {
      "type": "integer",
      "minimum": 1,
      "description": "Minimum participants/animals"
    }
  },
  "additionalProperties": false
}
aggregate_studies annotations
{
  "title": "Aggregate studies",
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}
find_related_studies — Related studies
Advertised by the server during the last successful anonymous check.
Advertised read-only

Studies a given study cites, studies that cite it, and the most similar studies by shared health conditions.

find_related_studies input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "study"
  ],
  "properties": {
    "study": {
      "type": "string",
      "maxLength": 300,
      "minLength": 1,
      "description": "Study id, slug, DOI or URL"
    }
  },
  "additionalProperties": false
}
find_related_studies annotations
{
  "title": "Related studies",
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}
list_conditions — List conditions
Advertised by the server during the last successful anonymous check.
Advertised read-only

Every health condition hub with its study count, evidence grade (where reviewed) and page URL. Use the slug as the `condition` filter.

list_conditions input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {}
}
list_conditions annotations
{
  "title": "List conditions",
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}
get_database_stats — Database stats
Advertised by the server during the last successful anonymous check.
Advertised read-only

Size and makeup of the database: total studies, breakdown by subject and design, year range, and field coverage.

get_database_stats input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {}
}
get_database_stats annotations
{
  "title": "Database stats",
  "readOnlyHint": true,
  "openWorldHint": false,
  "destructiveHint": false
}

Prompts

1 advertised

evidence_review — Evidence review

Advertised by the server during the last successful anonymous check.

Write a balanced, cited review of what the research says about molecular hydrogen for a topic.

topic
e.g. 'exercise recovery' or 'blood pressure' (required)

Resources

1 advertised

about — About Hydrogen Studies

Advertised by the server during the last successful anonymous check.

Methodology, field definitions and funding disclosure

about URI
hydrogenstudies://about

MIME type: text/markdown

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
775 ms
95th percentile latency
775 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 775 ms · metadata changed · 8 tool(s), 1 resource(s), 0 resource template(s), 1 prompt(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http hydrogen-studies-mcp https://hydrogenstudies.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add hydrogen-studies-mcp --url https://hydrogenstudies.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable hydrogen-studies-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "hydrogen-studies-mcp": {
      "url": "https://hydrogenstudies.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "hydrogen-studies-mcp": {
      "type": "streamableHttp",
      "url": "https://hydrogenstudies.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start hydrogen-studies-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "hydrogen-studies-mcp": {
      "type": "http",
      "url": "https://hydrogenstudies.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http hydrogen-studies-mcp https://hydrogenstudies.com/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "hydrogen-studies-mcp": {
      "url": "https://hydrogenstudies.com/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "hydrogen-studies-mcp": {
      "serverUrl": "https://hydrogenstudies.com/mcp"
    }
  }
}

Let your agent find its tools

Find servers like Hydrogen Studies MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.

Connect Koskamo Explore workflows
See all 4,384

Do you run Hydrogen Studies MCP?

Prove ownership with a DNS record, a well-known file, or your Official MCP Registry entry, and your edits publish immediately. Proofs are re-checked weekly; admins can still hide or remove a listing.

Claim this listing