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Use US EPA CompTox with your AI.

Connect your account once and let the AI you already use work with it, without building another integration. Access the US EPA's CompTox Chemicals Dashboard data. search for chemicals, properties, hazard summaries, and exposure data.

Included with plan

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Complete set · 10 capabilities

The complete US EPA CompTox capability set.

These are the exact actions your AI can choose when you ask it to work with US EPA CompTox.

Capability set01 / 03

01-04

4 capabilities in this set.

Part of 10 available through US EPA CompTox.

  1. 01

    Get hazard summary

    Retrieve a summary of toxicity values and hazard assessment data from ToxValDB

  2. 02

    Get chemical lists

    Identify which chemical lists (regulatory, research, or commercial) this chemical belongs to

  3. 03

    Get chemical synonyms

    Retrieve all known synonyms and alternative names for a specific chemical

  4. 04

    Get physicochemical properties

    Retrieve predicted and experimental physicochemical properties (e.g., melting point, logP, solubility) for a chemical

Capability set02 / 03

05-07

3 capabilities in this set.

Part of 10 available through US EPA CompTox.

  1. 05

    Search chemical by casrn

    Search for chemicals by their CAS Registry Number (CASRN)

  2. 06

    Search chemical by name

    Search for chemicals by common, IUPAC, or synonym names in the EPA CompTox database

  3. 07

    Get bioactivity summary

    Retrieve a summary of high-throughput screening results from ToxCast/Tox21 assays

Capability set03 / 03

08-10

3 capabilities in this set.

Part of 10 available through US EPA CompTox.

  1. 08

    Get chemical details

    Get comprehensive metadata and identification details for a specific chemical using its DTXSID

  2. 09

    Get exposure summary

    Retrieve predicted exposure levels and product use data (ExpoCast/CPDat)

  3. 10

    Get fate and transport

    Retrieve environmental fate and transport data (e.g., half-life, bioconcentration)

Observed, not estimated

895ms average. Fast in production.

US EPA CompTox is checked daily against the live service.

Daily averagePeak 1183ms
Aug 20Today
Fastest day
725ms
Slowest day
1183ms
14-day trend
Slowing+18%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 10 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of US EPA CompTox, so you can see the experience inside your AI.

It does not authenticate your account with US EPA CompTox. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

US EPA CompTox Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_0ZcTlmQ2vNletyA7rslqEJngY7ar0f5o60efjJSn/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — US EPA CompTox capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "epa-computational-toxicology-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_0ZcTlmQ2vNletyA7rslqEJngY7ar0f5o60efjJSn/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

FAQ

Questions US EPA CompTox owners ask.

  • 01

    How do I obtain a free API key for the EPA CTX services?

    You must send an email to ccte_api@epa.gov to request an individual API key. The key is usually issued free of charge for research and professional use.

  • 02

    What is a DTXSID and how is it used?

    DTXSID is the EPA Dashboard Chemical Identifier. It is the primary unique identifier used across all CompTox APIs to ensure precise substance identification.

  • 03

    Are the results returned in real-time from the EPA databases?

    Yes, this agent queries the live CompTox Chemicals Dashboard APIs directly, ensuring you have the most up-to-date scientific data available from the CCTE.

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