What experimental methods are represented in the PDB?

The PDB contains structures determined by four main methods: X-ray Crystallography (85% of entries, atomic resolution), Cryo-EM (rapidly growing, now 15%+ of new deposits), NMR Spectroscopy (solution-state structures), and Neutron Diffraction (hydrogen atom positions). Each entry lists its method and resolution.

Do I need authentication to access PDB data?

No. RCSB PDB is completely free and open — funded by NSF, NIH, DOE, and international partners. All 220K+ structures are openly accessible without any registration or API key. The data is licensed under CC0 (public domain).

What information does each PDB entry contain?

Each entry includes: PDB ID (4-character code), structure title, depositing authors, experimental method, resolution in Ångströms, source organism, release date, number of polymer chains, and bound non-polymer ligands (drugs, cofactors, ions). Higher resolution (lower number) means more precise atomic coordinates.

RCSB PDB MCP Server for AutoGen 2 tools — connect in under 2 minutes

Name: RCSB PDB
Availability: InStock
Author: Vinkius

microsoft.github.io/autogen/docs/tools/mcp-tools

Built by Vinkius GDPR 2 Tools Framework

Microsoft AutoGen enables multi-agent conversations where agents negotiate, delegate, and execute tasks collaboratively. Add RCSB PDB as an MCP tool provider through Vinkius and every agent in the group can access live data and take action.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

python

import asyncio
from autogen_agentchat.agents import AssistantAgent
from autogen_ext.tools.mcp import McpWorkbench

async def main():
    # Your Vinkius token. get it at cloud.vinkius.com
    async with McpWorkbench(
        server_params={"url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"},
        transport="streamable_http",
    ) as workbench:
        tools = await workbench.list_tools()
        agent = AssistantAgent(
            name="rcsb_pdb_agent",
            tools=tools,
            system_message=(
                "You help users with RCSB PDB. "
                "2 tools available."
            ),
        )
        print(f"Agent ready with {len(tools)} tools")

asyncio.run(main())

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* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About RCSB PDB MCP Server

Connect your AI agent to the RCSB Protein Data Bank — the world's repository of experimentally determined 3D structural data for biological macromolecules.

AutoGen enables multi-agent conversations where agents negotiate, delegate, and collaboratively use RCSB PDB tools. Connect 2 tools through Vinkius and assign role-based access. a data analyst queries while a reviewer validates, with optional human-in-the-loop approval for sensitive operations.

What you can do

Structure Search — Find protein, DNA, and RNA structures by name, function, disease association, or organism across 220K+ experimentally determined entries
PDB Entry Lookup — Get complete structural details by 4-character PDB ID (e.g., 1HHO for hemoglobin, 6LU7 for SARS-CoV-2 main protease) including experimental method, resolution, and bound molecules

The RCSB PDB MCP Server exposes 2 tools through the Vinkius. Connect it to AutoGen 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 RCSB PDB to AutoGen via MCP

Follow these steps to integrate the RCSB PDB MCP Server with AutoGen.

Install AutoGen

Run pip install "autogen-ext[mcp]"

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Integrate into workflow

Use the agent in your AutoGen multi-agent orchestration

Explore tools

The workbench discovers 2 tools from RCSB PDB automatically

Why Use AutoGen with the RCSB PDB MCP Server

AutoGen provides unique advantages when paired with RCSB PDB through the Model Context Protocol.

Multi-agent conversations: multiple AutoGen agents discuss, delegate, and collaboratively use RCSB PDB tools to solve complex tasks

Role-based architecture lets you assign RCSB PDB tool access to specific agents. a data analyst queries while a reviewer validates

Human-in-the-loop support: agents can pause for human approval before executing sensitive RCSB PDB tool calls

Code execution sandbox: AutoGen agents can write and run code that processes RCSB PDB tool responses in an isolated environment

RCSB PDB + AutoGen Use Cases

Practical scenarios where AutoGen combined with the RCSB PDB MCP Server delivers measurable value.

Collaborative analysis: one agent queries RCSB PDB while another validates results and a third generates the final report

Automated review pipelines: a researcher agent fetches data from RCSB PDB, a critic agent evaluates quality, and a writer produces the output

Interactive planning: agents negotiate task allocation using RCSB PDB data to make informed decisions about resource distribution

Code generation with live data: an AutoGen coder agent writes scripts that process RCSB PDB responses in a sandboxed execution environment

RCSB PDB MCP Tools for AutoGen (2)

These 2 tools become available when you connect RCSB PDB to AutoGen via MCP:

get_pdb_structure

PDB IDs are 4-character codes like 1HHO, 6LU7, 7BNN. Get full structural details by PDB ID

search_pdb

Returns PDB ID, title, experimental method (X-ray, Cryo-EM, NMR), resolution, authors, and bound ligands. Essential for drug discovery and structural biology. Search 220K+ 3D molecular structures in the Protein Data Bank

Example Prompts for RCSB PDB in AutoGen

Ready-to-use prompts you can give your AutoGen agent to start working with RCSB PDB immediately.

"Show me the structure of the SARS-CoV-2 main protease."

"Get full structural details for PDB entry 1HHO — what protein is it?"

"Find all cryo-EM structures of ribosome complexes."

Troubleshooting RCSB PDB MCP Server with AutoGen

Common issues when connecting RCSB PDB to AutoGen through the Vinkius, and how to resolve them.

McpWorkbench not found

Install: pip install "autogen-ext[mcp]"

RCSB PDB + AutoGen FAQ

Common questions about integrating RCSB PDB MCP Server with AutoGen.

How does AutoGen connect to MCP servers?

Create an MCP tool adapter and assign it to one or more agents in the group chat. AutoGen agents can then call RCSB PDB tools during their conversation turns.

Can different agents have different MCP tool access?

Yes. AutoGen's role-based architecture lets you assign specific MCP tools to specific agents, so a querying agent has different capabilities than a reviewing agent.