Who maintains Pubchem MCP Server?

Pubchem MCP Server is maintained by cyanheads, which publishes 131 MCP servers (2112 total versions) tracked on MCP Toplist.

Is Pubchem MCP Server listed on the Official MCP Registry?

Yes — Pubchem MCP Server is listed on the Official MCP Registry, alongside PulseMCP and Glama.

How many versions does Pubchem MCP Server have?

MCP Toplist tracks 35 versions of Pubchem MCP Server, most recently published on Aug 21, 2026.

Where can I find the source code for Pubchem MCP Server?

The source code for Pubchem MCP Server is hosted at github.com/cyanheads/pubchem-mcp-server.

SERVER

Pubchem MCP Server

Rank #2,178

io.github.cyanheads/pubchem-mcp-server

Search PubChem compounds, properties, safety data, bioactivity, and cross-references.

35 versions

9 GitHub stars

by cyanheads (131 servers)View repository ↗Claim this server

First listed

Jun 30, 2025

Last publish date

Aug 21, 2026

OVERVIEW

Pubchem MCP Server is a Model Context Protocol (MCP) server published by cyanheads. It ranks #2,178 of 121,933 servers tracked on MCP Toplist, and its repository has 9 GitHub stars. Pubchem MCP Server is listed across 3 registries — Official MCP, PulseMCP and Glama, with 35 tracked versions. It was first listed on Jun 30, 2025 and most recently updated on Aug 21, 2026.

STANDING

#2,178of 121,933 tracked serversTop 5%

Ranks ahead of 119,755 of 121,933 servers on MCP Toplist.

CONNECT

Use Pubchem 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 pubchem-mcp-server https://pubchem.caseyjhand.com/mcp

npm package

claude mcp add pubchem-mcp-server -e "MCP_LOG_LEVEL=<your MCP_LOG_LEVEL>" -- npx -y @cyanheads/pubchem-mcp-server run start:stdio

Replace each placeholder with your own value before saving.

npm package

claude mcp add pubchem-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>" -- npx -y @cyanheads/pubchem-mcp-server run start:http

Replace each placeholder with your own value before saving.

Remote · HTTP

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

Add to ~/.codex/config.toml.

npm package

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

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

[mcp_servers.pubchem-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>"

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

Remote · HTTP

https://pubchem.caseyjhand.com/mcp

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

npm package

{
  "mcpServers": {
    "pubchem-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/pubchem-mcp-server",
        "run",
        "start:stdio"
      ],
      "env": {
        "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": {
    "pubchem-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/pubchem-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>"
      }
    }
  }
}

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

Remote · HTTP

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

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

npm package

{
  "mcpServers": {
    "pubchem-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/pubchem-mcp-server",
        "run",
        "start:stdio"
      ],
      "env": {
        "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": {
    "pubchem-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/pubchem-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>"
      }
    }
  }
}

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

Remote · HTTP

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

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

npm package

{
  "servers": {
    "pubchem-mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/pubchem-mcp-server",
        "run",
        "start:stdio"
      ],
      "env": {
        "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": {
    "pubchem-mcp-server": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/pubchem-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>"
      }
    }
  }
}

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

Remote · HTTP

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

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

npm package

{
  "mcpServers": {
    "pubchem-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/pubchem-mcp-server",
        "run",
        "start:stdio"
      ],
      "env": {
        "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": {
    "pubchem-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/pubchem-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>"
      }
    }
  }
}

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

Remote · HTTP

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

npm package

{
  "mcpServers": {
    "pubchem-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/pubchem-mcp-server",
        "run",
        "start:stdio"
      ],
      "env": {
        "MCP_LOG_LEVEL": "<your MCP_LOG_LEVEL>"
      }
    }
  }
}

Replace each placeholder with your own value before saving.

npm package

{
  "mcpServers": {
    "pubchem-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/pubchem-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>"
      }
    }
  }
}

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%2Fpubchem-mcp-server.svg)](https://mcptoplist.com/server/io.github.cyanheads%2Fpubchem-mcp-server)

HTML

<a href="https://mcptoplist.com/server/io.github.cyanheads%2Fpubchem-mcp-server"><img src="https://mcptoplist.com/badge/io.github.cyanheads%2Fpubchem-mcp-server.svg" alt="MCP Toplist: Top 5% of 121,933" /></a>

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

REGISTRIES

Listed on 3 registries

Official MCP

PulseMCP

Glama

ORGANIZATION

cyanheads

Organization

cyanheads

Servers in org

131

Versions across org

2112

Other servers by cyanheads

View all cyanheads servers →

VERSIONS

Available versions (35)

Version	Published
0.6.1	Aug 21, 2026
0.6.0	Jul 28, 2026
0.5.2	Jul 28, 2026
0.5.1	Jul 28, 2026
0.5.0	Jul 28, 2026
0.4.3	Jul 28, 2026
0.4.2	Jul 28, 2026
0.4.1	Jul 3, 2026
0.4.0	Jul 3, 2026
0.3.1	Jul 3, 2026
0.3.0	Jun 30, 2026
0.2.4	Jun 20, 2026
0.2.3	Jun 13, 2026
0.2.2	Jun 2, 2026
0.2.1	Jun 2, 2026
0.2.0	Jun 2, 2026
0.1.23	Jun 2, 2026
0.1.22	May 30, 2026
0.1.21	May 29, 2026
0.1.20	May 23, 2026
0.1.19	May 16, 2026
0.1.18	May 5, 2026
0.1.17	May 1, 2026
0.1.16	Apr 24, 2026
0.1.14	Apr 19, 2026
0.1.13	Apr 19, 2026
0.1.12	Apr 19, 2026
0.1.11	Mar 30, 2026
0.1.10	Mar 28, 2026
0.1.9	Mar 28, 2026
0.1.8	Mar 23, 2026
0.1.6	Mar 22, 2026
0.1.4	Mar 22, 2026
0.1.3	Mar 21, 2026
0.1.0	Nov 25, 2024

FAQ

Frequently asked questions

Who maintains Pubchem MCP Server?: Pubchem MCP Server is maintained by cyanheads, which publishes 131 MCP servers (2112 total versions) tracked on MCP Toplist.
Is Pubchem MCP Server listed on the Official MCP Registry?: Yes — Pubchem MCP Server is listed on the Official MCP Registry, alongside PulseMCP and Glama.
How many versions does Pubchem MCP Server have?: MCP Toplist tracks 35 versions of Pubchem MCP Server, most recently published on Aug 21, 2026.
Where can I find the source code for Pubchem MCP Server?: The source code for Pubchem MCP Server is hosted at github.com/cyanheads/pubchem-mcp-server.

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