SERVER

@cyanheads/chembl-mcp-server

Rank #8,609

io.github.cyanheads/chembl-mcp-server

Link compounds to protein targets, rank bioactivity, and look up drug mechanisms and indications.

6 versions

1 GitHub stars

by cyanheads (135 servers)View repository ↗Claim this server

First listed

Jun 26, 2026

Last publish date

Sep 19, 2026

OVERVIEW

@cyanheads/chembl-mcp-server is a Model Context Protocol (MCP) server published by cyanheads. It ranks #8,609 of 132,046 servers tracked on MCP Toplist, and its repository has 1 GitHub stars. @cyanheads/chembl-mcp-server is listed across 3 registries — Official MCP, PulseMCP and Glama, with 6 tracked versions. It was first listed on Jun 26, 2026 and most recently updated on Sep 19, 2026.

STANDING

#8,609of 132,046 tracked serversTop 10%

Ranks ahead of 123,437 of 132,046 servers on MCP Toplist.

CONNECT

Use @cyanheads/chembl-mcp-server

No setupRuns out of the box

No credentials or required configuration declared — add it to your MCP client and go.

Remote · HTTP

claude mcp add --transport http chembl-mcp-server https://chembl.caseyjhand.com/mcp

npm package

claude mcp add chembl-mcp-server -e "CANVAS_PROVIDER_TYPE=<your CANVAS_PROVIDER_TYPE>" -e "CHEMBL_API_BASE_URL=<your CHEMBL_API_BASE_URL>" -e "CHEMBL_REQUEST_TIMEOUT_MS=<your CHEMBL_REQUEST_TIMEOUT_MS>" -e "CHEMBL_MAX_PAGE_SIZE=<your CHEMBL_MAX_PAGE_SIZE>" -e "CHEMBL_DEFAULT_LIMIT=<your CHEMBL_DEFAULT_LIMIT>" -e "CHEMBL_MAX_SPILL_ROWS=<your CHEMBL_MAX_SPILL_ROWS>" -e "CHEMBL_DATAFRAME_DROP_ENABLED=<your CHEMBL_DATAFRAME_DROP_ENABLED>" -e "MCP_LOG_LEVEL=<your MCP_LOG_LEVEL>" -- npx -y @cyanheads/chembl-mcp-server run start:stdio

Replace each placeholder with your own value before saving.

npm package

claude mcp add chembl-mcp-server -e "MCP_HTTP_HOST=<your MCP_HTTP_HOST>" -e "MCP_HTTP_PORT=<your MCP_HTTP_PORT>" -e "MCP_HTTP_ENDPOINT_PATH=<your MCP_HTTP_ENDPOINT_PATH>" -e "MCP_AUTH_MODE=<your MCP_AUTH_MODE>" -e "MCP_LOG_LEVEL=<your MCP_LOG_LEVEL>" -e "CANVAS_PROVIDER_TYPE=<your CANVAS_PROVIDER_TYPE>" -e "CHEMBL_API_BASE_URL=<your CHEMBL_API_BASE_URL>" -e "CHEMBL_REQUEST_TIMEOUT_MS=<your CHEMBL_REQUEST_TIMEOUT_MS>" -e "CHEMBL_MAX_PAGE_SIZE=<your CHEMBL_MAX_PAGE_SIZE>" -e "CHEMBL_DEFAULT_LIMIT=<your CHEMBL_DEFAULT_LIMIT>" -e "CHEMBL_MAX_SPILL_ROWS=<your CHEMBL_MAX_SPILL_ROWS>" -e "CHEMBL_DATAFRAME_DROP_ENABLED=<your CHEMBL_DATAFRAME_DROP_ENABLED>" -- npx -y @cyanheads/chembl-mcp-server run start:http

Replace each placeholder with your own value before saving.

Remote · HTTP

[mcp_servers.chembl-mcp-server]
url = "https://chembl.caseyjhand.com/mcp"

Add to ~/.codex/config.toml.

npm package

[mcp_servers.chembl-mcp-server]
command = "npx"
args = ["-y", "@cyanheads/chembl-mcp-server", "run", "start:stdio"]

[mcp_servers.chembl-mcp-server.env]
CANVAS_PROVIDER_TYPE = "<your CANVAS_PROVIDER_TYPE>"
CHEMBL_API_BASE_URL = "<your CHEMBL_API_BASE_URL>"
CHEMBL_REQUEST_TIMEOUT_MS = "<your CHEMBL_REQUEST_TIMEOUT_MS>"
CHEMBL_MAX_PAGE_SIZE = "<your CHEMBL_MAX_PAGE_SIZE>"
CHEMBL_DEFAULT_LIMIT = "<your CHEMBL_DEFAULT_LIMIT>"
CHEMBL_MAX_SPILL_ROWS = "<your CHEMBL_MAX_SPILL_ROWS>"
CHEMBL_DATAFRAME_DROP_ENABLED = "<your CHEMBL_DATAFRAME_DROP_ENABLED>"
MCP_LOG_LEVEL = "<your MCP_LOG_LEVEL>"

Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.

npm package

[mcp_servers.chembl-mcp-server]
command = "npx"
args = ["-y", "@cyanheads/chembl-mcp-server", "run", "start:http"]

[mcp_servers.chembl-mcp-server.env]
MCP_HTTP_HOST = "<your MCP_HTTP_HOST>"
MCP_HTTP_PORT = "<your MCP_HTTP_PORT>"
MCP_HTTP_ENDPOINT_PATH = "<your MCP_HTTP_ENDPOINT_PATH>"
MCP_AUTH_MODE = "<your MCP_AUTH_MODE>"
MCP_LOG_LEVEL = "<your MCP_LOG_LEVEL>"
CANVAS_PROVIDER_TYPE = "<your CANVAS_PROVIDER_TYPE>"
CHEMBL_API_BASE_URL = "<your CHEMBL_API_BASE_URL>"
CHEMBL_REQUEST_TIMEOUT_MS = "<your CHEMBL_REQUEST_TIMEOUT_MS>"
CHEMBL_MAX_PAGE_SIZE = "<your CHEMBL_MAX_PAGE_SIZE>"
CHEMBL_DEFAULT_LIMIT = "<your CHEMBL_DEFAULT_LIMIT>"
CHEMBL_MAX_SPILL_ROWS = "<your CHEMBL_MAX_SPILL_ROWS>"
CHEMBL_DATAFRAME_DROP_ENABLED = "<your CHEMBL_DATAFRAME_DROP_ENABLED>"

Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.

Remote · HTTP

https://chembl.caseyjhand.com/mcp

Settings → Connectors → “Add custom connector”, then paste this URL.

npm package

{
  "mcpServers": {
    "chembl-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/chembl-mcp-server",
        "run",
        "start:stdio"
      ],
      "env": {
        "CANVAS_PROVIDER_TYPE": "<your CANVAS_PROVIDER_TYPE>",
        "CHEMBL_API_BASE_URL": "<your CHEMBL_API_BASE_URL>",
        "CHEMBL_REQUEST_TIMEOUT_MS": "<your CHEMBL_REQUEST_TIMEOUT_MS>",
        "CHEMBL_MAX_PAGE_SIZE": "<your CHEMBL_MAX_PAGE_SIZE>",
        "CHEMBL_DEFAULT_LIMIT": "<your CHEMBL_DEFAULT_LIMIT>",
        "CHEMBL_MAX_SPILL_ROWS": "<your CHEMBL_MAX_SPILL_ROWS>",
        "CHEMBL_DATAFRAME_DROP_ENABLED": "<your CHEMBL_DATAFRAME_DROP_ENABLED>",
        "MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>"
      }
    }
  }
}

Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "chembl-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/chembl-mcp-server",
        "run",
        "start:http"
      ],
      "env": {
        "MCP_HTTP_HOST": "<your MCP_HTTP_HOST>",
        "MCP_HTTP_PORT": "<your MCP_HTTP_PORT>",
        "MCP_HTTP_ENDPOINT_PATH": "<your MCP_HTTP_ENDPOINT_PATH>",
        "MCP_AUTH_MODE": "<your MCP_AUTH_MODE>",
        "MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>",
        "CANVAS_PROVIDER_TYPE": "<your CANVAS_PROVIDER_TYPE>",
        "CHEMBL_API_BASE_URL": "<your CHEMBL_API_BASE_URL>",
        "CHEMBL_REQUEST_TIMEOUT_MS": "<your CHEMBL_REQUEST_TIMEOUT_MS>",
        "CHEMBL_MAX_PAGE_SIZE": "<your CHEMBL_MAX_PAGE_SIZE>",
        "CHEMBL_DEFAULT_LIMIT": "<your CHEMBL_DEFAULT_LIMIT>",
        "CHEMBL_MAX_SPILL_ROWS": "<your CHEMBL_MAX_SPILL_ROWS>",
        "CHEMBL_DATAFRAME_DROP_ENABLED": "<your CHEMBL_DATAFRAME_DROP_ENABLED>"
      }
    }
  }
}

Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.

Remote · HTTP

{
  "mcpServers": {
    "chembl-mcp-server": {
      "url": "https://chembl.caseyjhand.com/mcp"
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project).

npm package

{
  "mcpServers": {
    "chembl-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/chembl-mcp-server",
        "run",
        "start:stdio"
      ],
      "env": {
        "CANVAS_PROVIDER_TYPE": "<your CANVAS_PROVIDER_TYPE>",
        "CHEMBL_API_BASE_URL": "<your CHEMBL_API_BASE_URL>",
        "CHEMBL_REQUEST_TIMEOUT_MS": "<your CHEMBL_REQUEST_TIMEOUT_MS>",
        "CHEMBL_MAX_PAGE_SIZE": "<your CHEMBL_MAX_PAGE_SIZE>",
        "CHEMBL_DEFAULT_LIMIT": "<your CHEMBL_DEFAULT_LIMIT>",
        "CHEMBL_MAX_SPILL_ROWS": "<your CHEMBL_MAX_SPILL_ROWS>",
        "CHEMBL_DATAFRAME_DROP_ENABLED": "<your CHEMBL_DATAFRAME_DROP_ENABLED>",
        "MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "chembl-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/chembl-mcp-server",
        "run",
        "start:http"
      ],
      "env": {
        "MCP_HTTP_HOST": "<your MCP_HTTP_HOST>",
        "MCP_HTTP_PORT": "<your MCP_HTTP_PORT>",
        "MCP_HTTP_ENDPOINT_PATH": "<your MCP_HTTP_ENDPOINT_PATH>",
        "MCP_AUTH_MODE": "<your MCP_AUTH_MODE>",
        "MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>",
        "CANVAS_PROVIDER_TYPE": "<your CANVAS_PROVIDER_TYPE>",
        "CHEMBL_API_BASE_URL": "<your CHEMBL_API_BASE_URL>",
        "CHEMBL_REQUEST_TIMEOUT_MS": "<your CHEMBL_REQUEST_TIMEOUT_MS>",
        "CHEMBL_MAX_PAGE_SIZE": "<your CHEMBL_MAX_PAGE_SIZE>",
        "CHEMBL_DEFAULT_LIMIT": "<your CHEMBL_DEFAULT_LIMIT>",
        "CHEMBL_MAX_SPILL_ROWS": "<your CHEMBL_MAX_SPILL_ROWS>",
        "CHEMBL_DATAFRAME_DROP_ENABLED": "<your CHEMBL_DATAFRAME_DROP_ENABLED>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.

Remote · HTTP

{
  "servers": {
    "chembl-mcp-server": {
      "type": "http",
      "url": "https://chembl.caseyjhand.com/mcp"
    }
  }
}

Save as .vscode/mcp.json in your workspace.

npm package

{
  "servers": {
    "chembl-mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/chembl-mcp-server",
        "run",
        "start:stdio"
      ],
      "env": {
        "CANVAS_PROVIDER_TYPE": "<your CANVAS_PROVIDER_TYPE>",
        "CHEMBL_API_BASE_URL": "<your CHEMBL_API_BASE_URL>",
        "CHEMBL_REQUEST_TIMEOUT_MS": "<your CHEMBL_REQUEST_TIMEOUT_MS>",
        "CHEMBL_MAX_PAGE_SIZE": "<your CHEMBL_MAX_PAGE_SIZE>",
        "CHEMBL_DEFAULT_LIMIT": "<your CHEMBL_DEFAULT_LIMIT>",
        "CHEMBL_MAX_SPILL_ROWS": "<your CHEMBL_MAX_SPILL_ROWS>",
        "CHEMBL_DATAFRAME_DROP_ENABLED": "<your CHEMBL_DATAFRAME_DROP_ENABLED>",
        "MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>"
      }
    }
  }
}

Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.

npm package

{
  "servers": {
    "chembl-mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/chembl-mcp-server",
        "run",
        "start:http"
      ],
      "env": {
        "MCP_HTTP_HOST": "<your MCP_HTTP_HOST>",
        "MCP_HTTP_PORT": "<your MCP_HTTP_PORT>",
        "MCP_HTTP_ENDPOINT_PATH": "<your MCP_HTTP_ENDPOINT_PATH>",
        "MCP_AUTH_MODE": "<your MCP_AUTH_MODE>",
        "MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>",
        "CANVAS_PROVIDER_TYPE": "<your CANVAS_PROVIDER_TYPE>",
        "CHEMBL_API_BASE_URL": "<your CHEMBL_API_BASE_URL>",
        "CHEMBL_REQUEST_TIMEOUT_MS": "<your CHEMBL_REQUEST_TIMEOUT_MS>",
        "CHEMBL_MAX_PAGE_SIZE": "<your CHEMBL_MAX_PAGE_SIZE>",
        "CHEMBL_DEFAULT_LIMIT": "<your CHEMBL_DEFAULT_LIMIT>",
        "CHEMBL_MAX_SPILL_ROWS": "<your CHEMBL_MAX_SPILL_ROWS>",
        "CHEMBL_DATAFRAME_DROP_ENABLED": "<your CHEMBL_DATAFRAME_DROP_ENABLED>"
      }
    }
  }
}

Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.

Remote · HTTP

{
  "mcpServers": {
    "chembl-mcp-server": {
      "serverUrl": "https://chembl.caseyjhand.com/mcp"
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

npm package

{
  "mcpServers": {
    "chembl-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/chembl-mcp-server",
        "run",
        "start:stdio"
      ],
      "env": {
        "CANVAS_PROVIDER_TYPE": "<your CANVAS_PROVIDER_TYPE>",
        "CHEMBL_API_BASE_URL": "<your CHEMBL_API_BASE_URL>",
        "CHEMBL_REQUEST_TIMEOUT_MS": "<your CHEMBL_REQUEST_TIMEOUT_MS>",
        "CHEMBL_MAX_PAGE_SIZE": "<your CHEMBL_MAX_PAGE_SIZE>",
        "CHEMBL_DEFAULT_LIMIT": "<your CHEMBL_DEFAULT_LIMIT>",
        "CHEMBL_MAX_SPILL_ROWS": "<your CHEMBL_MAX_SPILL_ROWS>",
        "CHEMBL_DATAFRAME_DROP_ENABLED": "<your CHEMBL_DATAFRAME_DROP_ENABLED>",
        "MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "chembl-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/chembl-mcp-server",
        "run",
        "start:http"
      ],
      "env": {
        "MCP_HTTP_HOST": "<your MCP_HTTP_HOST>",
        "MCP_HTTP_PORT": "<your MCP_HTTP_PORT>",
        "MCP_HTTP_ENDPOINT_PATH": "<your MCP_HTTP_ENDPOINT_PATH>",
        "MCP_AUTH_MODE": "<your MCP_AUTH_MODE>",
        "MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>",
        "CANVAS_PROVIDER_TYPE": "<your CANVAS_PROVIDER_TYPE>",
        "CHEMBL_API_BASE_URL": "<your CHEMBL_API_BASE_URL>",
        "CHEMBL_REQUEST_TIMEOUT_MS": "<your CHEMBL_REQUEST_TIMEOUT_MS>",
        "CHEMBL_MAX_PAGE_SIZE": "<your CHEMBL_MAX_PAGE_SIZE>",
        "CHEMBL_DEFAULT_LIMIT": "<your CHEMBL_DEFAULT_LIMIT>",
        "CHEMBL_MAX_SPILL_ROWS": "<your CHEMBL_MAX_SPILL_ROWS>",
        "CHEMBL_DATAFRAME_DROP_ENABLED": "<your CHEMBL_DATAFRAME_DROP_ENABLED>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.

Remote · HTTP

{
  "mcpServers": {
    "chembl-mcp-server": {
      "url": "https://chembl.caseyjhand.com/mcp"
    }
  }
}

npm package

{
  "mcpServers": {
    "chembl-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/chembl-mcp-server",
        "run",
        "start:stdio"
      ],
      "env": {
        "CANVAS_PROVIDER_TYPE": "<your CANVAS_PROVIDER_TYPE>",
        "CHEMBL_API_BASE_URL": "<your CHEMBL_API_BASE_URL>",
        "CHEMBL_REQUEST_TIMEOUT_MS": "<your CHEMBL_REQUEST_TIMEOUT_MS>",
        "CHEMBL_MAX_PAGE_SIZE": "<your CHEMBL_MAX_PAGE_SIZE>",
        "CHEMBL_DEFAULT_LIMIT": "<your CHEMBL_DEFAULT_LIMIT>",
        "CHEMBL_MAX_SPILL_ROWS": "<your CHEMBL_MAX_SPILL_ROWS>",
        "CHEMBL_DATAFRAME_DROP_ENABLED": "<your CHEMBL_DATAFRAME_DROP_ENABLED>",
        "MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>"
      }
    }
  }
}

Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "chembl-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/chembl-mcp-server",
        "run",
        "start:http"
      ],
      "env": {
        "MCP_HTTP_HOST": "<your MCP_HTTP_HOST>",
        "MCP_HTTP_PORT": "<your MCP_HTTP_PORT>",
        "MCP_HTTP_ENDPOINT_PATH": "<your MCP_HTTP_ENDPOINT_PATH>",
        "MCP_AUTH_MODE": "<your MCP_AUTH_MODE>",
        "MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>",
        "CANVAS_PROVIDER_TYPE": "<your CANVAS_PROVIDER_TYPE>",
        "CHEMBL_API_BASE_URL": "<your CHEMBL_API_BASE_URL>",
        "CHEMBL_REQUEST_TIMEOUT_MS": "<your CHEMBL_REQUEST_TIMEOUT_MS>",
        "CHEMBL_MAX_PAGE_SIZE": "<your CHEMBL_MAX_PAGE_SIZE>",
        "CHEMBL_DEFAULT_LIMIT": "<your CHEMBL_DEFAULT_LIMIT>",
        "CHEMBL_MAX_SPILL_ROWS": "<your CHEMBL_MAX_SPILL_ROWS>",
        "CHEMBL_DATAFRAME_DROP_ENABLED": "<your CHEMBL_DATAFRAME_DROP_ENABLED>"
      }
    }
  }
}

Replace each placeholder with your own value before saving.

BADGE

Show your rank

Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.

Markdown

[![MCP Toplist](https://mcptoplist.com/badge/io.github.cyanheads%2Fchembl-mcp-server.svg)](https://mcptoplist.com/server/io.github.cyanheads%2Fchembl-mcp-server)

HTML

<a href="https://mcptoplist.com/server/io.github.cyanheads%2Fchembl-mcp-server"><img src="https://mcptoplist.com/badge/io.github.cyanheads%2Fchembl-mcp-server.svg" alt="MCP Toplist: Top 10% of 132,046" /></a>

Variants: append ?metric=score or ?metric=stars to the image URL.

REGISTRIES

Listed on 3 registries

PulseMCP

Official MCP

Glama

ORGANIZATION

cyanheads

Organization

cyanheads

Servers in org

135

Versions across org

2337

Other servers by cyanheads

View all cyanheads servers →

VERSIONS

Available versions (6)

Version	Published
0.3.0	Sep 19, 2026
0.2.4	Aug 25, 2026
0.2.3	Aug 13, 2026
0.2.2	Aug 13, 2026
0.2.1	Aug 13, 2026
0.2.0	Jun 28, 2026

FAQ

Frequently asked questions

Who maintains @cyanheads/chembl-mcp-server?: @cyanheads/chembl-mcp-server is maintained by cyanheads, which publishes 135 MCP servers (2337 total versions) tracked on MCP Toplist.
Is @cyanheads/chembl-mcp-server listed on the Official MCP Registry?: Yes — @cyanheads/chembl-mcp-server is listed on the Official MCP Registry, alongside PulseMCP and Glama.
How many versions does @cyanheads/chembl-mcp-server have?: MCP Toplist tracks 6 versions of @cyanheads/chembl-mcp-server, most recently published on Sep 19, 2026.
Where can I find the source code for @cyanheads/chembl-mcp-server?: The source code for @cyanheads/chembl-mcp-server is hosted at github.com/cyanheads/chembl-mcp-server.

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