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mechoulam MCP server

Which MCP servers are mechoulam's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-26

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Whose server it is
  • Registry namede.mechoulam/cannabis-evidenceverified in the MCP registry

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

When we asked itchecked 2026-10-26
  • Stateanswerschecked 2026-10-26
  • Tools5
  • Server calls itselfmechoulam-studienlage
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-10-26 the server answered initialize and tools/list without a sign-in. First answer in 231 ms.

Should an agent connect itConnect it
  • Its tools do every use case we checked: search cannabinoid studies by evidence strength and indication; check study type and grade before relying on a result.

Once connected

  • For "search cannabinoid studies by evidence strength and indication", the likely first call is search.

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.

Measured dailydaily checks: 9, the first on 2026-10-26
  • INITE MCP score100 of 100answers 100 · does the job 100 · definitions 100 · context 100 · connects 100
  • What an agent can do with it2 of 2 use cases
  • Answered100% of days9 of 9 daily checks
  • Median first answer608 ms
  • Space in an agent's context≈ 537 tokensthe definitions of all its tools (5), which an agent carries on every turn
  • Tool definitionsA · 100 of 100
  • Typed results2 of 5 toolsdeclared outputSchema: results come typed, read once
  • Every tool passes all six checks.

What an agent can do with it

  • can do · search cannabinoid studies by evidence strength and indication
  • can do · check study type and grade before relying on a result
  • not sure · follow ongoing cannabinoid research by therapy area and stage

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

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 →

Tools it offers5 tools · read 2026-10-26
  • search

    Search the mechoulam.de cannabis-medicine evidence register by free text (indication, condition, drug, study title, author). Returns indications and reviewed studies with citable URLs. Answer language follows the language of the query.

  • fetch

    Fetch one full record by the id returned from search: the GRADE-rated evidence summary of an indication, or one study with its per-indication verdicts. Includes the source URL to cite.

  • list_indications

    List all indications on mechoulam.de with slug, name, category, count of reviewed studies and the citable page URL.

  • get_indication

    Get the GRADE-rated evidence summary for one indication (reviewed studies only). Use a slug from list_indications.

  • get_study

    Get one study by DOI with its per-indication verdicts (reviewed-only).

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "cannabis-evidence": {
      "type": "http",
      "url": "https://mechoulam.de/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http mechoulam https://mechoulam.de/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://mechoulam.de/mcp as a custom connector in the settings.

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.