MCP server

GreenCycle Compound Atlas

com.greencyclepedia/atlas

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Read-only cannabis compound, receptor, anatomy and evidence data, every value sourced.

Working at last checkVerified publisher: greencyclepedia.comAbout 3,338 tokens per request once connected14 tools

Website Source

https://greencyclepedia.com/mcp

At a glance

Type: MCP server
Publisher: greencyclepedia.com (verified by the MCP Registry)
Status: Working at last check
Tools: 14
Token cost: About 3,338 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to Cursor Add to VS Code VS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http atlas https://greencyclepedia.com/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.atlas]
url = "https://greencyclepedia.com/mcp"

Gemini CLI

{"mcpServers":{"atlas":{"httpUrl":"https://greencyclepedia.com/mcp"}}}

Cursor

{"mcpServers":{"atlas":{"url":"https://greencyclepedia.com/mcp"}}}

VS Code

{"servers":{"atlas":{"type":"http","url":"https://greencyclepedia.com/mcp"}}}

Antigravity

agy mcp add atlas https://greencyclepedia.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"atlas","server_url":"https://greencyclepedia.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"atlas","server_url":"https://greencyclepedia.com/mcp"}

Tools

ask_atlas ~242 tokens
Use first for a plain question such as "does CBD help epilepsy", "where does THC act" or "what binds TRPV1": finds the compounds, conditions and receptors the question names in the atlas and answers only from those records: the evidence grade, the key findings with PubMed identifiers, the atlas page
cite ~155 tokens
A ready citation for one atlas record (compound, target or condition) or for the atlas as a whole: the canonical url, the citation line, a BibTeX entry, the version, the original papers to cite for its findings (PubMed links) and the licence (CC BY 4.0 with attribution).
compare_compounds ~188 tokens
Use for "THC versus CBD" and similar questions: two to four compounds side by side, target by target, with each action, evidence grade, measured binding values and PubMed identifiers, the targets they share and the atlas comparison page when one exists. Educational reference, not medical advice. Not
fetch ~182 tokens
The full text of one atlas record by the id that search returned ("compound:cbd", "target:CB1", "condition:epilepsy", "trial:NCT03883360", "cultivar:STRAIN0001"): what it is, the targets and effects with evidence grades, measured binding values, cautions, every source (PubMed ids with links) and the
find_studies ~283 tokens
Use for "what is the evidence" and "which studies": the PubMed studies the atlas cites for a compound, a target, a condition or a compound at one target, each with its PubMed link, what it supports (an effect at a target, a binding value, a caution, a systematic review or a trial as administered) an
get_changes ~114 tokens
The latest releases of the atlas data files: the version to cite, which datasets changed, records added and removed, and where the dated copy of each release lives.
get_compound ~291 tokens
Use for "what does THC, CBD or myrcene do in the body": the full record of one mapped compound by atlas id, Cannabis Compound Database id, name or PubChem CID. A curated record gives identity and structure identifiers, every target with the action, effect, evidence grade, body structures and PubMed
get_cultivar ~197 tokens
Use for strain chemistry: one cultivar from the laboratory measurements the atlas uses (Cannabis Compound Database values, mg per gram of dry flower), by CCD id or name: every atlas compound measured in it with the mean, the number of values and the PubMed identifier of each source. Cultivar names a
get_target ~167 tokens
Use for receptor questions: one receptor, ion channel or enzyme by name or gene (for example CB1, CNR1, TRPV1, GPR55, FAAH, CYP3A4): what it is, where it sits in the body, the compounds mapped to it with their action, effect and evidence grade, and every measured binding or functional value with spe
list_structures_for_target ~231 tokens
Use for "where in the body": the atlas body structures (organs and regions) that carry a molecular target: for CB1 and CB2 the qualitative receptor density (0 to 4, a teaching summary of the literature, not a measurement), other receptors listed for a structure, and the structures where a compound e
list_trials ~435 tokens
Use for clinical trial questions: registered trials from the atlas snapshot of ClinicalTrials.gov (trials whose intervention is named cannabis, a cannabinoid, cannabidiol, THC or a related medicine): identifier, title, status, phase, enrolment, conditions, countries, start date, the atlas compounds
search ~202 tokens
Search the whole GreenCycle Compound Atlas by any name: cannabis compounds (THC, CBD, CBG, terpenes, flavonoids), receptors and enzymes (CB1, CB2, TRPV1, 5-HT1A, FAAH), medical conditions with an evidence grade (epilepsy, chronic pain, sleep) and registered clinical trials. Returns results with id,
search_compounds ~398 tokens
Use for lists of cannabis compounds: find the compounds mapped onto the human body (curated atlas records and database compounds with a measured, sourced value at a target placed in tissue) by name, chemical class, record type or molecular target (for example every compound acting at CB2, TRPV1, 5-H
search_conditions ~253 tokens
Use for "does cannabis help with ...": conditions on the atlas evidence ladder (substantial, moderate, limited, insufficient, evidence of no benefit): the grade and why, the systematic reviews and trials behind it by PubMed identifier, the compounds and body structures involved and the atlas page. T

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