> ## Documentation Index > Fetch the complete documentation index at: https://docs.gomaestro.org/llms.txt > Use this file to discover all available pages before exploring further. > Get detailed information about a Cardano minting policy including assets, metadata, and policy script details. # Information about a policy of native assets ## OpenAPI ````yaml cardano/blockchain-indexer-api/openapi.json get /policy/{policy} openapi: 3.0.3 info: title: Cardano - Blockchain Indexer API description: Core indexer endpoints dedicated to Cardano. contact: name: Maestro Blockchain Inc. url: https://gomaestro.org/ email: info@gomaestro.org license: name: Apache 2.0 url: https://www.apache.org/licenses/LICENSE-2.0.txt version: v1.8.0 servers: - url: https://mainnet.gomaestro-api.org/v1 description: Cardano Mainnet - url: https://preprod.gomaestro-api.org/v1 description: Cardano Preprod - url: https://preview.gomaestro-api.org/v1 description: Cardano Preview security: - api-key: [] tags: - name: Maestro paths: /policy/{policy}: get: tags: - Asset Policy summary: Information about a policy of native assets description: >- Returns a summary of information about a native asset policy ID and assets minted under that policy operationId: policy_info parameters: - name: policy in: path description: Hex encoded policy ID required: true schema: type: string responses: '200': description: Summary of asset minting policy content: application/json: schema: $ref: '#/components/schemas/TimestampedPolicyInfo' example: data: policy_id: f0ff48bbb7bbe9d59a40f1ce90e9e9d0ff5002ec48f232b49ca0fb9a script: hash: f0ff48bbb7bbe9d59a40f1ce90e9e9d0ff5002ec48f232b49ca0fb9a type: native bytes: >- 8200581c4da965a049dfd15ed1ee19fba6e2974a0b79fc416dd1796a1f97f5e1 json: keyHash: 4da965a049dfd15ed1ee19fba6e2974a0b79fc416dd1796a1f97f5e1 type: sig assets_of_policy: 11 total_supply: '11' unique_holders: by_address: 21 by_account: 19 first_mint_tx: tx_hash: >- 257916e7ae112cf16f27218e41bfa37c018bab922354201b3b38c9a24c35ab33 slot: 55718892 timestamp: '2022-03-14 19:13:03' latest_update_tx: tx_hash: >- 257916e7ae112cf16f27218e41bfa37c018bab922354201b3b38c9a24c35ab33 slot: 55718892 timestamp: '2022-03-14 19:13:03' last_updated: timestamp: '2023-10-18 07:30:52' block_hash: >- 0e1e924710135acfe200ab13d290bd282a67584fd54456f0dcac0aeaa38bb2c2 block_slot: 106047961 '400': description: Malformed query parameters '404': description: No results found '500': description: Internal server error components: schemas: TimestampedPolicyInfo: type: object description: >- Timestamped response. Returns the endpoint response data along with the chain-tip of the indexer, which details at which point in the chain's history the data was correct as-of. required: - data - last_updated properties: data: $ref: '#/components/schemas/PolicyInfo' last_updated: $ref: '#/components/schemas/LastUpdated' PolicyInfo: type: object description: Information about a Cardano native-asset policy ID required: - policy_id - script - assets_of_policy - total_supply - unique_holders - first_mint_tx - latest_mint_tx properties: assets_of_policy: type: integer format: int64 description: Number of unique asset names of the policy ID which have existed minimum: 0 first_mint_tx: $ref: '#/components/schemas/TimestampedTransaction' latest_mint_tx: $ref: '#/components/schemas/TimestampedTransaction' policy_id: type: string description: Hex encoding of the policy ID script: $ref: '#/components/schemas/Script' total_supply: type: string description: >- Sum of the total supplies of all different assets under the policy ID unique_holders: $ref: '#/components/schemas/Holders' LastUpdated: type: object description: >- Details of the most recent block processed by the indexer (aka chain tip); that is, the data returned is correct as of this block in time. required: - timestamp - block_hash - block_slot properties: block_hash: type: string description: >- Hex-encoded hash of the most recently processed block (aka chain tip) block_slot: type: integer format: int64 description: Absolute slot of the most recently processed block (aka chain tip) minimum: 0 timestamp: type: string description: UTC timestamp of when the most recently processed block was minted TimestampedTransaction: type: object description: Transaction hash with details of when that transaction appeared on-chain required: - tx_hash - slot - timestamp properties: slot: type: integer format: int64 description: Absolute slot of the block which includes the transaction minimum: 0 timestamp: type: string description: UTC timestamp of the block which includes the transaction tx_hash: type: string description: Transaction hash Script: type: object description: Details of a Native or Plutus script required: - hash - type - bytes properties: bytes: type: string description: Script bytes hash: type: string description: Script hash json: type: object description: >- JSON representation of script (`null` if script not of `native` type) nullable: true type: $ref: '#/components/schemas/ScriptType' Holders: type: object description: >- Number of holders of at least one of a specific asset or assets of a specific policy, by address or address staking part required: - by_address - by_account properties: by_account: type: integer format: int64 description: >- Number of unique staking keys used in addresses which control at least one of an asset of the policy ID minimum: 0 by_address: type: integer format: int64 description: >- Number of unique addresses which control at least one of an asset of the policy ID minimum: 0 ScriptType: type: string description: Script type and version enum: - native - plutusv1 - plutusv2 - plutusv3 securitySchemes: api-key: type: apiKey in: header name: api-key description: Project API Key ````