---
title: "Exchange Flow Exchanges"
method: GET
path: "/gateway/v1/market/exchange-flow/exchanges"
tags: ["Market"]
---

# Exchange Flow Exchanges

`GET /gateway/v1/market/exchange-flow/exchanges`

Returns Hermod's curated exchange filters for exchange-flow metrics: upstream aggregate filters plus 20 high-coverage individual exchanges.

Use the returned `symbol` values as the `exchange` query parameter on `/v1/market/onchain-indicator` when `metric` is one of `exchange-flows/inflow`, `exchange-flows/outflow`, `exchange-flows/netflow`, or `exchange-flows/reserve`.

The curated list intentionally excludes long-tail upstream exchange entities that return empty data or bad-request errors for flow metrics.

## Query parameters

- `symbol` 'BTC' | 'ETH', required — Token ticker symbol. Can be `BTC` or `ETH`.
- `limit` integer — Results per page
- `offset` integer — Pagination offset

## Response `200`

OK

- DataResponseMarketExchangeFlowExchangeItem
  - `$schema` string, uri — A URL to the JSON Schema for this object.
  - `data` MarketExchangeFlowExchangeItem[], nullable, required
    - `name` string, required — Human-readable exchange name
    - `supported_flow_filter` boolean, required — Whether this filter is in Hermod's curated exchange-flow allowlist
    - `symbol` string, required — Exchange filter value to pass as the `exchange` query parameter
    - `type` string, required — Filter type: `aggregate` for upstream exchange categories or `exchange` for individual exchanges
  - `meta` OffsetMeta, required
    - `cached` boolean, required — Whether this response was served from cache
    - `credits_used` integer, required — Credits deducted for this request
    - `empty_reason` string — Hint explaining why the data array is empty, when applicable
    - `has_more` boolean — Whether more items may exist beyond this response. For offset-paged endpoints, continue with a larger offset. For time-series endpoints without offset/cursor controls, true means the requested time range hit an upstream cap; narrow from/to to continue. Omitted when exhaustion cannot be proven.
    - `limit` integer, required — Maximum number of items returned in this response
    - `offset` integer, required — Number of items skipped (pagination offset)
    - `total` integer — Total number of matching items (before pagination). Omitted when total is unknown.
    - `watermark` integer — Warehouse watermark (Unix seconds) this response was computed at, on warehouse-backed endpoints (e.g. Hyperliquid /trades/aggregate) — rows up to this time come from the warehouse, newer rows from the live tail. Omitted elsewhere.

## Other responses

- `default` — Error

---

[API](https://skmtc.dev/asksurf/apis/asksurf-public-rest-api.md) · [All operations](https://skmtc.dev/asksurf/apis/asksurf-public-rest-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/asksurf/asksurf-public-rest-api/revisions/4153a9cb5145/schema)