Bring Open Data
to LangChain
Learn how to connect Open Data Euskadi to LangChain and start using 2 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.
GDPR Free for SubscribersCompatible with every major AI agent and IDE
Gemini
What is the Open Data Euskadi MCP Server?
Connect to the Open Data Euskadi ecosystem and interact with the Basque Government's official public data through natural conversation. This server provides direct access to a vast catalog of administrative and semantic information.
What you can do
- Content Search — Query the Euskadi.eus catalog for grants, public contracts, news, and administrative procedures using advanced filters.
- Linked Open Data (LOD) — Execute raw SPARQL queries against the GraphDB endpoint to retrieve structured RDF data for deep analysis.
- Administrative Transparency — Access real-time information on public announcements, board notices, and governmental publications.
- Meteorological Data — Retrieve specialized datasets, including weather information from Euskalmet when authorized.
- Metadata Filtering — Narrow down results by language, date ranges, and specific portal contexts to find exactly what you need.
How it works
- Subscribe to this server
- Enter your Euskalmet JWT (optional for public data)
- Start querying Basque public data from Claude, Cursor, or any MCP-compatible client
Who is this for?
- Data Analysts & Researchers — perform complex semantic queries across public datasets without manual exports
- Legal & Administrative Professionals — track public grants, subsidies, and government contracts in real-time
- Developers — integrate official Basque government data and news feeds directly into your AI-driven workflows
Built-in capabilities (2)
Execute a SPARQL query against Open Data Euskadi
Search the Euskadi.eus content catalog
Why LangChain?
LangChain's ecosystem of 500+ components combines seamlessly with Open Data Euskadi through native MCP adapters. Connect 2 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.
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The largest ecosystem of integrations, chains, and agents. combine Open Data Euskadi MCP tools with 500+ LangChain components
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Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step
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LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging
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Memory and conversation persistence let agents maintain context across Open Data Euskadi queries for multi-turn workflows
Open Data Euskadi in LangChain
Open Data Euskadi and 4,000+ other MCP servers. One platform. One governance layer.
Teams that connect Open Data Euskadi to LangChain through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.
Raw MCP | Vinkius | |
|---|---|---|
| Server catalog | Find and host yourself | 4,000+ managed |
| Infrastructure | Self-hosted | Sandboxed V8 isolates |
| Credential handling | Plaintext in config | Vault + runtime injection |
| Data loss prevention | None | Configurable DLP policies |
| Kill switch | None | Global instant shutdown |
| Financial circuit breakers | None | Per-server limits + alerts |
| Audit trail | None | Ed25519 signed logs |
| SIEM log streaming | None | Splunk, Datadog, Webhook |
| Honeytokens | None | Canary alerts on leak |
| Custom domains | Not applicable | DNS challenge verified |
| GDPR compliance | Manual effort | Automated purge + export |
Why teams choose Vinkius for Open Data Euskadi in LangChain
The Open Data Euskadi 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. All 2 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in LangChain only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.
* 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
How Vinkius secures
Open Data Euskadi for LangChain
Every tool call from LangChain to the Open Data Euskadi MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
How can I filter content by a specific language or date range?
You can use the metadata_filters parameter in the search_euskadi_content tool. For example, use documentLanguage.EQ.es for Spanish or procedureStartDate.BETWEEN.01/01/2023,31/12/2023 for dates.
Can I perform advanced semantic analysis on the data?
Yes! Use the execute_sparql_query tool to run raw SPARQL queries against the Linked Open Data (LOD) endpoint. This allows you to traverse relationships in the RDF graph directly.
What types of administrative content can I search for?
The search_euskadi_content tool allows you to filter by content_type. Common types include ayuda_subvencion (grants), contratacion (contracts), noticia (news), and anuncio_tablon (board notices).
How does LangChain connect to MCP servers?
Use langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.
Which LangChain agent types work with MCP?
All agent types including ReAct, OpenAI Functions, and custom agents work with MCP tools. The tools appear as standard LangChain tools after the adapter wraps them.
Can I trace MCP tool calls in LangSmith?
Yes. All MCP tool invocations appear as traced steps in LangSmith, showing input parameters, response payloads, latency, and token usage.
MultiServerMCPClient not found
Install: pip install langchain-mcp-adapters
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