---
title: "GovActionID proposal metadata"
method: GET
path: "/governance/proposals/{gov_action_id}/metadata"
tags: ["Cardano » Governance"]
---

# GovActionID proposal metadata

`GET /governance/proposals/{gov_action_id}/metadata`

## Request

- Base URL: `https://cardano-mainnet.blockfrost.io/api/v0`
- URL: `https://cardano-mainnet.blockfrost.io/api/v0/governance/proposals/{gov_action_id}/metadata`
- Auth: API key in header `project_id`

Proposal metadata information.

## Path parameters

- `gov_action_id` string, required

## Response `200`

Return the proposal information content

- ProposalMetadataV2
  - `id` string, required: Governance Action Identifier (CIP-0129)
  - `tx_hash` string, required: Off-chain metadata of a proposal with a specific transaction hash
  - `cert_index` integer, required: Off-chain metadata of a proposal with a specific transaction cert_index
  - `url` string, required: URL to the proposal metadata
  - `hash` string, required: Hash of the metadata file
  - `json_metadata` union, required: Content of the JSON metadata (validated CIP-108)
    - string
    - object
    - unknown[]
      - unknown
    - integer
    - number
    - boolean
  - `bytes` string, nullable, required: Content of the metadata (raw)
  - `error` object: Present when metadata could not be fetched or validated.
    - `code` 'HASH_MISMATCH' | 'CONNECTION_ERROR' | 'HTTP_RESPONSE_ERROR' | 'DECODE_ERROR' | 'SIZE_EXCEEDED' | 'UNKNOWN_ERROR', required: Stable machine-readable error code.
    - `message` string, required: Human-readable description of the error.

## Other responses

- `400`: Bad request
- `403`: Authentication secret is missing or invalid
- `418`: IP has been auto-banned for extensive sending of requests after usage limit has been reached
- `429`: Usage limit reached
- `500`: Internal Server Error

---

[API](https://skmtc.dev/blockfrost/apis/blockfrost-io-api-documentation.md) - [All operations](https://skmtc.dev/blockfrost/apis/blockfrost-io-api-documentation/llms.txt) - [OpenAPI document](https://skmtc.dev/blockfrost/apis/blockfrost-io-api-documentation/revisions/7bfbd292d170?raw)