> For the complete documentation index, see [llms.txt](https://gitbook-docs.coinmetrics.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gitbook-docs.coinmetrics.io/cm-api-spec/meta-data/blockchain-metadata/list-of-all-available-tags.md).
# List of all available tags
Returns a list of all available tags along with their descriptions, lexicographically ordered by the `tag` field.
```json
{"openapi":"3.0.2","info":{"title":"Coin Metrics API v4","version":"4.0.0"},"tags":[{"name":"Blockchain Metadata","description":"Blockchain metadata endpoints\n\n**Endpoints on this page:**\n- `GET /blockchain-metadata/locations` — List of all available locations\n- `GET /blockchain-metadata/owners` — List of all available owners\n- `GET /blockchain-metadata/tagged-entities` — The list of entities associated with provided tags\n- `GET /blockchain-metadata/tags` — List of all available tags"}],"servers":[{"url":"https://api.coinmetrics.io/v4"},{"url":"wss://api.coinmetrics.io/v4"},{"url":"https://community-api.coinmetrics.io/v4"}],"security":[{"api_key":[]}],"components":{"securitySchemes":{"api_key":{"description":"Coin Metrics API key can be specified as `?api_key=` query parameter.","in":"query","name":"api_key","type":"apiKey"}},"parameters":{"TagType":{"description":"The type of a tag.","in":"query","name":"type","required":false,"schema":{"type":"string"}},"Pretty":{"description":"Human-readable formatting of JSON responses.","in":"query","name":"pretty","schema":{"type":"boolean","default":false}},"PageSize":{"description":"Number of items per single page of results.
The value of this parameter is ignored if the endpoint supports the `format` parameter and its value is set to `json_stream`.","in":"query","name":"page_size","schema":{"default":100,"type":"integer","format":"int32","minimum":1,"maximum":10000}},"NextPageToken":{"description":"Token for receiving the results from the next page of a query.
Should not be used directly. To iterate through pages just use `next_page_url` response field.","in":"query","name":"next_page_token","schema":{"type":"string"}}},"responses":{"BlockchainMetadataTags":{"description":"List of tags.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/BlockchainMetadataTagsResponse"}}}},"Unauthorized":{"description":"Requested resource requires authorization.","content":{"application/json":{"schema":{"$ref":"#/components/schemas/ErrorResponse"}}}},"UriTooLong":{"description":"Provided URI is too long. It must not be greater than 10000 symbols."}},"schemas":{"BlockchainMetadataTagsResponse":{"description":"Blockchain metadata tags response.","properties":{"data":{"type":"array","items":{"$ref":"#/components/schemas/BlockchainMetadataTagInfo"}},"next_page_token":{"$ref":"#/components/schemas/NextPageToken"},"next_page_url":{"$ref":"#/components/schemas/NextPageUrl"}},"required":["data"]},"BlockchainMetadataTagInfo":{"type":"object","properties":{"tag":{"type":"string","description":"Name of the tag."},"type":{"type":"string","description":"Type of the tag. Currently, the available tags are of type `ENTITY`."},"description":{"type":"string","description":"Brief description of the tag."}},"required":["tag","type"]},"NextPageToken":{"description":"Token of the next page results for a given request.","type":"string"},"NextPageUrl":{"description":"URL of the next page results for a given request.","type":"string"},"ErrorResponse":{"properties":{"error":{"$ref":"#/components/schemas/ErrorObject"}},"required":["error"],"type":"object"},"ErrorObject":{"properties":{"type":{"description":"Error type string. Can be used for error identification.","type":"string"},"message":{"description":"Human-friendly error description. Can be amended without prior notification. Do not use for error identification in your code.","type":"string"}},"required":["type","description"],"type":"object"}}},"paths":{"/blockchain-metadata/tags":{"get":{"summary":"List of all available tags","description":"Returns a list of all available tags along with their descriptions, lexicographically ordered by the `tag` field.","operationId":"getBlockchainMetadataTags","tags":["Blockchain Metadata"],"parameters":[{"$ref":"#/components/parameters/TagType"},{"$ref":"#/components/parameters/Pretty"},{"$ref":"#/components/parameters/PageSize"},{"$ref":"#/components/parameters/NextPageToken"}],"responses":{"200":{"$ref":"#/components/responses/BlockchainMetadataTags"},"401":{"$ref":"#/components/responses/Unauthorized"},"414":{"$ref":"#/components/responses/UriTooLong"}}}}}}
```
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://gitbook-docs.coinmetrics.io/cm-api-spec/meta-data/blockchain-metadata/list-of-all-available-tags.md?ask=&goal=
```
`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.