---
title: "Available mempool feerates"
method: GET
path: "/catalog-v2/mempool-feerates"
tags: ["Catalog v2"]
---

# Available mempool feerates

`GET /catalog-v2/mempool-feerates`

## Request

- Base URL: `https://api.coinmetrics.io/v4`
- URL: `https://api.coinmetrics.io/v4/catalog-v2/mempool-feerates`
- Auth: API key in query parameter `api_key`
- TypeScript: <https://skmtc.dev/coinmetrics/apis/coin-metrics-api-v4/docs/catalog-v2/mempool-feerates/get.ts> (a function with typed inputs; its response is checked against the schema)

Returns a list of available assets for the mempool-feerates endpoint along with time ranges of available data.

## Query parameters

- `assets` string[]
- `page_size` integer
- `paging_from` 'start' | 'end', PagingFrom
- `next_page_token` string
- `format` string
- `pretty` boolean

## Response `200`

List of mempool feerates assets

- CatalogV2MempoolFeeratesResponse
  - `data` CatalogMempoolFeeratesInfo[], required
    - `asset` string, required: Unique name of the asset.
    - `min_time` string, required: Minimal available time for time series.
    - `max_time` string, required: Maximal available time for time series.
  - `next_page_token` string: Token of the next page results for a given request.
  - `next_page_url` string: URL of the next page results for a given request.

## Other responses

- `400`: Asset not found.
- `401`: Requested resource requires authorization.
- `414`: Provided URI is too long. It must not be greater than 10000 symbols.

---

[API](https://skmtc.dev/coinmetrics/apis/coin-metrics-api-v4.md) - [All operations](https://skmtc.dev/coinmetrics/apis/coin-metrics-api-v4/llms.txt) - [OpenAPI document](https://skmtc.dev/coinmetrics/apis/coin-metrics-api-v4/revisions/774268c0a4fe?raw)