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LlamaIndexFramework
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Why use U.S. Congress MCP Server with LlamaIndex?

Bring Legislation
to LlamaIndex

Create your Vinkius account to connect U.S. Congress to LlamaIndex and start using all 8 AI tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code. No hosting, no server setup — just connect and start using.

MCP Inspector GDPR Free for Subscribers
Get Bill DetailsList Congress AmendmentsList Congress BillsList Congress CommitteesList Congress MembersList Congress NominationsList Congress SessionsList Congress Treaties
ChatGPT Claude Perplexity

Compatible with every major AI agent and IDE

ClaudeClaude
ChatGPTChatGPT
CursorCursor
GeminiGemini
WindsurfWindsurf
VS CodeVS Code
JetBrainsJetBrains
VercelVercel
+ other MCP clients
U.S. Congress

What is the U.S. Congress MCP Server?

Connect the U.S. Congress API to your AI agent and access comprehensive legislative data through natural conversation.

What you can do

  • Bill Research — Search and browse bills across congressional sessions with full text and status tracking
  • Member Lookup — List current and past members of Congress with biographical and voting data
  • Amendment Tracking — Browse amendments to bills and resolutions
  • Treaty Analysis — Access treaty submissions and their current status
  • Nomination Tracking — Monitor presidential nominations through the confirmation process
  • Committee Navigation — Browse congressional committees and their jurisdictions
  • Congress History — Access session data across historical congresses

How it works

  1. Subscribe to this server
  2. Get a free API key from Congress.gov
  3. Start researching legislation from Claude, Cursor, or any MCP-compatible client

Who is this for?

  • Policy Researchers — quickly find bills, track their progress, and analyze legislative trends
  • Journalists — research congressional activity, member records, and committee hearings
  • Civic Tech Developers — build apps that make legislative data accessible to citizens

Built-in capabilities (8)

get_bill_details

Get full details for a specific legislative bill

list_congress_amendments

List legislative amendments

list_congress_bills

gov database. List bills from the current or specified Congress

list_congress_committees

List congressional committees

list_congress_members

List current or past members of the US Congress

list_congress_nominations

List executive and judicial nominations

list_congress_sessions

g., 118th, 117th) and their start and end dates. List historical congressional sessions

list_congress_treaties

List treaties handled by Congress

Why LlamaIndex?

LlamaIndex agents combine U.S. Congress tool responses with indexed documents for comprehensive, grounded answers. Connect 8 tools through Vinkius and query live data alongside vector stores and SQL databases in a single turn. ideal for hybrid search, data enrichment, and analytical workflows.

  • Data-first architecture: LlamaIndex agents combine U.S. Congress tool responses with indexed documents for comprehensive, grounded answers

  • Query pipeline framework lets you chain U.S. Congress tool calls with transformations, filters, and re-rankers in a typed pipeline

  • Multi-source reasoning: agents can query U.S. Congress, a vector store, and a SQL database in a single turn and synthesize results

  • Observability integrations show exactly what U.S. Congress tools were called, what data was returned, and how it influenced the final answer

L
See it in action

U.S. Congress in LlamaIndex

AI AgentVinkius
High Security·Kill Switch·Plug and Play
Enterprise Security

Why run U.S. Congress with Vinkius?

The U.S. Congress connection runs on our fully managed, secure cloud infrastructure. We handle the hosting, maintenance, and security so you don't have to deal with servers or code. All 8 tools are ready to work instantly without any complex setup.

You stay in complete control of your data. Your AI only accesses the information you approve, keeping your sensitive passwords and private details completely safe. Plus, with automatic optimizations, your AI works faster and more efficiently.

U.S. Congress
Fully ManagedNo server setup
Plug & PlayNo coding needed
SecurePrivacy protected
PrivateYour data is safe
Cost ControlBudget limits
Control1-click disconnect
Auto-UpdatesMaintenance free
High SpeedOptimized for AI
Reliable99.9% uptime
Your credentials and connection tokens are fully encrypted

* Every connection is hosted and maintained by Vinkius. We handle the security, updates, and infrastructure so you don't have to write code or manage servers. See our infrastructure

01 / Catalog

Over 4,000 integrations ready for AI agents

Explore a vast library of pre-built integrations, optimized and ready to deploy.

02 / Credentials

Connect securely in under 30 seconds

Generate tokens to authenticate and link external services in a single step.

03 / Guardian

Complete visibility into every agent action

Audit live requests, latency, success rates, and active security compliance policies.

04 / FinOps

Optimize spending and track token ROI

Analyze real-time token consumption and cost metrics detailed by connection.

Over 4,000 integrations ready for AI agents
Connect securely in under 30 seconds
Complete visibility into every agent action
Optimize spending and track token ROI

Explore our live AI Agents Analytics dashboard to see it all working

This dashboard is included when you connect U.S. Congress using Vinkius. You will never be left in the dark about what your AI agents are doing with your tools.

Why Vinkius

U.S. Congress and 4,000+ other AI tools. No hosting, no code, ready to use.

Professionals who connect U.S. Congress to LlamaIndex through Vinkius don't need to write code, manage servers, or worry about security. Everything is pre-configured, secure, and runs automatically in the background.

4,000+MCP Integrations
<40msResponse time
100%Fully managed
Raw MCP
Vinkius
Ready-to-use MCPsFind and configure each manually4,000+ MCPs ready to use
Connection SetupManual coding & server setup1-click instant connection
Server HostingYou host it yourself (needs 24/7 uptime)100% hosted & managed by Vinkius
Security & PrivacyStored in plaintext config filesBank-grade encrypted vault
Activity VisibilityBlind execution (no logs or tracking)Live dashboard with real-time logs
Cost ControlRunaway AI token spend riskAutomatic budget limits
Revoking AccessMust delete files or code to stop1-click disconnect button
The Vinkius Advantage

How Vinkius secures U.S. Congress for LlamaIndex

Every request between LlamaIndex and U.S. Congress is protected by our secure gateway. We automatically keep your sensitive data private, prevent unauthorized access, and let you disconnect instantly at any time.

< 40msCold start
Ed25519Signed audit chain
60%Token savings
FAQ

Frequently asked questions

01

Is the API key free?

Yes! The Congress.gov API key is completely free. Register at api.congress.gov/sign-up/ to get instant access to all legislative data endpoints.

02

How does LlamaIndex connect to MCP servers?

Use the MCP client adapter to create a connection. LlamaIndex discovers all tools and wraps them as query engine tools compatible with any LlamaIndex agent.

03

Can I combine MCP tools with vector stores?

Yes. LlamaIndex agents can query U.S. Congress tools and vector store indexes in the same turn, combining real-time and embedded data for grounded responses.

04

Does LlamaIndex support async MCP calls?

Yes. LlamaIndex's async agent framework supports concurrent MCP tool calls for high-throughput data processing pipelines.

05

BasicMCPClient not found

Install: pip install llama-index-tools-mcp

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