Gera Data MCP server

Read from the package source without running it. The installed server may list more.

• get_attestation

  Return the cryptographically signed Gera Vouch attestation for a dataset version: a claim object (dataset id, version, row count, SHA-256 content hash over the rows, source, source URL, licence, attribution, as-of, issuer), an Ed25519 signature, and the public key + verification recipe. Any party re-canonicalises the claim (sorted-key UTF-8 JSON) and verifies the signature against the public key —

• get_dataset

  Return everything about one dataset EXCEPT its rows: title, description, coverage, full provenance (source, URL, licence, attribution, as-of, derivation notes), the complete column schema, the row count, and a compact attestation summary (content hash + key id) so you know it is signed. Pass a dataset id from list_datasets. Use query_dataset to fetch the rows, get_attestation for the full signed r

• get_vouch_public_key

  Return the Ed25519 public key (+ key_id and verification recipe) used to sign every Gera Vouch dataset attestation, so any party can independently verify a get_attestation receipt. This is the same Gera public key the Gera Data API and Gera Verify MCP publish.

• list_datasets

  List the catalog of verified open datasets Gera serves: for each, the id (use it with the other tools), title, source publisher, source URL, licence, reference period (as-of), row count, coverage, and the queryable columns (id, label, type, unit, whether filterable/sortable). Use this first to discover what data is available, then call get_dataset / query_dataset / get_attestation by id. All data

• query_dataset

  Fetch verified rows from a dataset with optional single-column filter, sort, and pagination — same semantics as the Gera Data API. filter_column must be a filterable column; for number columns the filter is an exact match, for string columns a case-insensitive substring match. sort_by must be a sortable column. Returns the page of rows plus total/totalPages and the dataset version, so a returned v

• Code scan18 source files scanned25/25
• –Live reliabilityno gateway calls yet and no remote to proben/a
• –Tool poisoningtools not inspected (local package is not executed); not countedn/a
• Auth qualitylocal package, no credentials required12/15
• Maintenancerepository not readable: repo not found3/15
• Maintainer identityverified namespace with website, no repo4/10

Gera Data: common questions

Is Gera Data MCP server safe?

With care: it is graded C, so read the findings first (68/100). Read the Gera Data safety report

How do I install Gera Data?

It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.

Does Gera Data need an API key?

Not as far as the registry entry and our scan can tell: no credentials are declared or required.

Is Gera Data maintained?

The latest release is v1.0.0.