# io.github.shagarwal/databazaar

> Search and preview datasets publicly. Account-required full data via MCP.

- name: io.github.shagarwal/databazaar
- version: 1.5.1
- connection class: R0 (autonomous)
- trust: 97/100
- quality: 85/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.shagarwal%2Fdatabazaar
- tools: https://api.protogrid.dev/v1/servers/io.github.shagarwal%2Fdatabazaar/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "databazaar": {
      "type": "http",
      "url": "https://api.databazaar.io/mcp/public"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 100
- freshness: 100
- provenance: 90
- drivers: +repository +namespace-matches-repo +website +reachable +uptime-100% +updated-10d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 85/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: 83 (weight 15)

- pass `auth.prm`: Protected Resource Metadata (RFC 9728) published
- pass `auth.as_metadata`: authorization server metadata reachable
- warn `auth.cimd`: only Dynamic Client Registration, deprecated in 2026-07-28 in favour of CIMD
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 86 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 3 of 3 tools declare readOnlyHint or destructiveHint
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: get_dataset (destructiveHint, idempotentHint, openWorldHint); search_datasets (destructiveHint, idempotentHint, openWorldHint); preview_sample (destructiveHint, idempotentHint, openWorldHint)
- pass `tools.token_cost`: about 613 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: deps.dev does not know databazaar-mcp@1.5.1

- tools: 3, about 613 tokens to load them all
- tool set hash: af221b7f2b44c5711e47457667b59991
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.shagarwal/databazaar.svg)](https://protogrid.dev/servers/io.github.shagarwal/databazaar)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Dependencies

- npm databazaar-mcp@1.5.1: unknown

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0.

## Remotes

- https://api.databazaar.io/mcp (streamable-http, auth oauth2, reachable true, uptime30d 0.991453)
- https://api.databazaar.io/mcp/public (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

- npm databazaar-mcp@1.5.1

## Tools (3)

- `get_dataset`: Get full metadata for a specific dataset — schema, column counts, quality score, price anchoring, and a forwardable purchase pitch. Includes a checkout_url for one-click human purchase and a human_pitch field for operator messaging.
- `preview_sample`: Preview sample rows of a dataset to verify it contains the expected columns, format, and quality. Returns a signed download URL for ~50 rows plus the schema. Pass an optional question to get a synthesized answer from the sample (e.g. "average price in 2024") — no purchase required.
- `search_datasets`: Search the DataBazaar marketplace for datasets matching a natural-language query, with optional filters for category, price, quality score, and pricing type. Returns ranked listings with prices, quality scores, and checkout URLs. When results are empty, log_data_gap can post a bounty to signal demand to sellers.