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.

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.

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.

EPA Computational Toxicology MCP Server for VS Code Copilot 10 tools — connect in under 2 minutes

Name: EPA Computational Toxicology
Availability: InStock
Author: Vinkius

code.visualstudio.com/docs/copilot/chat/mcp-servers

Built by Vinkius GDPR 10 Tools IDE

GitHub Copilot in VS Code is the most widely adopted AI coding assistant, embedded directly into the world's most popular code editor. With MCP support in Agent mode, Copilot can access external data and APIs to generate context-aware code grounded in real-time information.

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Classic Setup·json

{
  "mcpServers": {
    "epa-computational-toxicology": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

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About EPA Computational Toxicology MCP Server

Connect to the US Environmental Protection Agency's (EPA) Center for Computational Toxicology and Exposure (CCTE) and explore a massive repository of chemical data through natural conversation.

GitHub Copilot Agent mode brings EPA Computational Toxicology data directly into your VS Code workflow. With a project-scoped config, the entire team shares access to 10 tools — Copilot queries live data, generates typed code, and writes tests from actual API responses, all without leaving the editor.

What you can do

Chemical Search — Find substances by name, CAS Registry Number (CASRN), or DTXSID
Physicochemical Properties — Retrieve melting points, boiling points, logP, and water solubility
Hazard Assessments — Access toxicity values, NOAELs, and points-of-departure from ToxValDB
Exposure Predictions — Explore predicted exposure levels and product use categories via ExpoCast and CPDat
Bioactivity Screening — Analyze ToxCast/Tox21 high-throughput screening results for thousands of assays
Environmental Fate — Check persistence, transport, and biodegradation metrics

The EPA Computational Toxicology MCP Server exposes 10 tools through the Vinkius. Connect it to VS Code Copilot in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect EPA Computational Toxicology to VS Code Copilot via MCP

Follow these steps to integrate the EPA Computational Toxicology MCP Server with VS Code Copilot.

Create MCP config

Create a .vscode/mcp.json file in your project root

Add the server config

Paste the JSON configuration above

Enable Agent mode

Open GitHub Copilot Chat and switch to Agent mode using the dropdown

Start using EPA Computational Toxicology

Ask Copilot: "Using EPA Computational Toxicology, help me..." — 10 tools available

Why Use VS Code Copilot with the EPA Computational Toxicology MCP Server

GitHub Copilot for Visual Studio Code provides unique advantages when paired with EPA Computational Toxicology through the Model Context Protocol.

VS Code is used by over 70% of developers — adding MCP tools to Copilot means your team can leverage external data without leaving their primary editor

Project-scoped MCP configs (`.vscode/mcp.json`) let you commit server configurations to your repository, ensuring the entire team shares the same tool access

Copilot's Agent mode integrates MCP tools seamlessly with file editing, terminal commands, and workspace search in a single agentic loop

GitHub's enterprise compliance and audit features extend to MCP tool usage, providing visibility into how AI interacts with external services

EPA Computational Toxicology + VS Code Copilot Use Cases

Practical scenarios where VS Code Copilot combined with the EPA Computational Toxicology MCP Server delivers measurable value.

Live API integration: Copilot can query an MCP server, inspect the response schema, and generate typed API client code in the same step

DevSecOps workflows: security teams can give developers access to domain intelligence tools directly in their editor for real-time vulnerability assessment during code review

Data pipeline development: Copilot fetches sample data via MCP and generates transformation scripts, validators, and test fixtures from actual API responses

Documentation generation: Copilot queries available tools and auto-generates README sections, API reference docs, and usage examples

EPA Computational Toxicology MCP Tools for VS Code Copilot (10)

These 10 tools become available when you connect EPA Computational Toxicology to VS Code Copilot via MCP:

get_bioactivity_summary

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

get_chemical_details

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

get_chemical_lists

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

get_chemical_synonyms

Retrieve all known synonyms and alternative names for a specific chemical

get_exposure_summary

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

get_fate_and_transport

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

get_hazard_summary

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

get_physicochemical_properties

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

search_chemical_by_casrn

Search for chemicals by their CAS Registry Number (CASRN)

search_chemical_by_name

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

Example Prompts for EPA Computational Toxicology in VS Code Copilot

Ready-to-use prompts you can give your VS Code Copilot agent to start working with EPA Computational Toxicology immediately.

"Search for the chemical properties of Bisphenol A."

"What is the hazard summary for CAS 80-05-7?"

"Find predicted exposure data for DTXSID7020182."

Troubleshooting EPA Computational Toxicology MCP Server with VS Code Copilot

Common issues when connecting EPA Computational Toxicology to VS Code Copilot through the Vinkius, and how to resolve them.

MCP tools not available

Ensure you are in Agent mode in Copilot Chat. MCP tools only appear in Agent mode.

EPA Computational Toxicology + VS Code Copilot FAQ

Common questions about integrating EPA Computational Toxicology MCP Server with VS Code Copilot.

Which VS Code version supports MCP?

MCP support requires VS Code 1.99 or later with the GitHub Copilot extension. Ensure both are updated to the latest version. Older versions of Copilot may not expose the Agent mode toggle.

How do I switch to Agent mode?

Open the Copilot Chat panel and look for two mode options: "Ask" and "Agent". Click "Agent" to enable autonomous tool calling. In Ask mode, Copilot provides conversational answers but cannot invoke MCP tools.

Can I restrict which MCP tools Copilot can access?

Yes. VS Code shows a tool consent dialog before any MCP tool is invoked for the first time. You can also configure tool access policies at the organization level through GitHub Copilot settings.

Does MCP work in VS Code Remote or Codespaces?

Yes. MCP servers configured via .vscode/mcp.json work in Remote SSH, WSL, and GitHub Codespaces environments. The MCP connection is established from the remote host, so ensure the server URL is accessible from that environment.