Data.gov.il

Production-gradeModel Context Protocol (MCP)server for Israeli Government Open Data fromdata.gov.il.

{ "mcpServers": { "data-gov-il": { "command": "npx", "args": ["-y", "data-gov-il-mcp"] } } }

npm install -g data-gov-il-mcp data-gov-il-mcp-http

{ "mcpServers": { "data-gov-il": { "url": "http://localhost:3664/mcp" } } }

docker run -p 3664:3664 ghcr.io/davidosherproceed/data-gov-il-mcp:latest

npm install npm run build npm run start:stdio # or npm run start:http

The server ships with a committed catalog snapshot atsrc/data/catalog/catalog.snapshot.json. The snapshot is generated from data.gov.il and bundled into the build. At startup, it is validated and indexed in memory.

- find_datasetscatalog-first search with live CKAN fallback.
- list_all_datasetsinstant local enumeration with optional organization filter.
- list_organizationsinstant local organization list with dataset counts.
- list_available_tagsandsearch_tagsfrom real CKAN tag/facet data.
- Dynamic completions fordatagov://dataset/{id}.
- datagov://tagsanddatagov://catalog/statsresources.

- Hebrew normalization, including nikud removal and final-letter normalization.
- Tokenization and trigram indexes for fuzzy matches and typo tolerance.
- Dataset, tag, and organization maps.
- Tag-to-dataset and organization-to-dataset indexes.
- Tag co-occurrence for related tag suggestions.
- Weighted ranking across exact, token, tag, organization, and fuzzy signals.

A scheduled GitHub Actions workflow (.github/workflows/catalog-refresh.yml) refreshes the snapshot and opens a PR when catalog data changes.

More detail:docs/catalog-discovery-layer.md.

- structuredContent: the typed JSON object.
- content[0].text: the same object serialized as JSON for text-only clients.

find_datasetscan optionally expose aninteractiveparameter:

{ "query": "תחבורה", "interactive": true }

When enabled, compatible clients may show a clarification form for broad searches. For example, the server can ask the user to narrow many matching datasets by publisher organization. If the client does not support Elicitation, the user declines, or the request times out, the tool falls back to normal search results.

This is disabled by default because MCP client support varies.

The server also implements resource subscriptions in a minimal standards-compliant way:

Prompt arguments use MCP completions. Domain focus suggestions are curated, and organization completions are catalog-backed.

These features are off by default. Enable them only when your target MCP client supports them and you want the server to expose them.

- Cursor supports Elicitation, but does not currently expose Sampling.
- Claude Code supports Elicitation in recent versions.
- Claude Desktop supports many MCP features, but Elicitation support is not reliable/available.
- Sampling availability varies; the server always falls back safely.
- Usefind_datasetswith natural Hebrew or English terms.
- Useget_dataset_infoorlist_resourcesfor a chosen dataset.
- Pick a resource withdatastore_active=true.
- Usesearch_recordswithlimit=5first to inspect fields.
- Addfilters,fields,sort,distinct, or pagination as needed.

find_datasets({ "query": "מחיר למשתכן" }) get_dataset_info({ "dataset": "mechir-lamishtaken" }) search_records({ "resource_id": "7c8255d0-49ef-49db-8904-4cf917586031", "limit": 5, "include_total": true })

search_tags({ "keyword": "דיור", "limit": 5 }) find_datasets({ "query": "תחבורה", "tags": "תחבורה ציבורית" })

find_datasets({ "query": "תחבורה", "interactive": true })

Compatible clients may show a form asking the user to narrow results.

summarize_dataset({ "dataset": "mechir-lamishtaken", "language": "he" })

If Sampling is unavailable, the tool returns the dataset metadata andsampling.used=false.

npm install # Type-check npm run typecheck # Lint npm run lint # Test npm test # Build npm run build # Refresh local catalog snapshot npm run catalog:refresh

# stdio npm run build npm run start:stdio # HTTP npm run build npm run start:http

MCP_ENABLE_ELICITATION=true MCP_ENABLE_SAMPLING=true npm run start:http

$env:MCP_ENABLE_ELICITATION="true" $env:MCP_ENABLE_SAMPLING="true" npm run start:http

src/ auth/ Authentication providers and Express middleware bin/ stdio and HTTP entry points cache/ In-memory TTL/LRU cache catalog/ Snapshot validation, indexing, fuzzy search, CatalogService ckan/ Typed CKAN API client and CKAN response types config/ Zod env config, constants, server identity core/ Dependency container, MCP server factory, lifecycle data/catalog/ Committed catalog snapshot artifact formatting/ JSON response builders and guidance text observability/ Pino logger prompts/ MCP prompt definitions, templates, registration resources/ MCP resources, templates, subscriptions services/ Domain services for CKAN data access tools/ MCP tool definitions and Zod schemas transports/ stdio and Streamable HTTP transports tests/ fixtures/ Test fixtures unit/ Unit tests scripts/ refresh-catalog.ts docs/ catalog-discovery-layer.md MIGRATION.md

docker build -t data-gov-il-mcp . docker run -p 3664:3664 data-gov-il-mcp

docker run -p 3664:3664 \ -e MCP_ENABLE_ELICITATION=true \ -e MCP_ENABLE_SAMPLING=true \ data-gov-il-mcp

npm run typecheck npm run lint npm test npm run build

Current implementation includes unit coverage for environment parsing, auth providers, CKAN errors, cache, formatting, catalog text normalization/fuzzy/index/search logic, snapshot validation, services, resources, subscriptions, and HTTP Host/Origin guard.

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