Prices at your tier · Myntkaup API

Buy and sell prices of every asset at the key's account tier, in USDC. Cached for up to 1 s.

Scope: Any valid key.
Rate-limit class: market
Authentication: Signed

Responses

200 OK

The prices. application/json · PriceList

tierstring
The account's fee tier.
Matches ^tier-\d{1,3}$.
as_ofstring (date-time)
dataarray of Price
5 properties of each item
- assetstring
  An upper-case asset symbol.
  Matches ^[A-Z0-9]{1,15}$.
- quote_currency"USDC"
- buystring (decimal)
- sellstring (decimal)
- updated_atstring (date-time)

Every response carries MK-Request-Id, plus RateLimit-Policy and RateLimit.

Errors

Errors use the error envelope. Match on code.

Status	Code	Meaning
400	`invalid_request`	The request is malformed: bad JSON, an unknown or invalid field, or a missing header.
401	`invalid_signature`	The MK-* headers are missing or malformed, the key id is unknown, or the signature doesn't match.
401	`key_expired`	The key has passed its expiry date.
401	`key_revoked`	The key was revoked.
401	`timestamp_out_of_range`	MK-Timestamp is more than 30 seconds from the server clock.
401	`nonce_reused`	This key already used this MK-Nonce.
403	`ip_not_allowed`	The request came from an address outside the key's IP allowlist.
429	`rate_limited`	Too many requests. Wait for Retry-After seconds.
429	`too_many_concurrent_requests`	Too many requests in flight for this key or account.
429	`key_suspended`	The key is suspended, for example after sustained rate limiting.
500	`internal_error`	Something went wrong on our side.
502	`bad_gateway`	An upstream service answered unexpectedly.
503	`overloaded`	The service is overloaded. Retry after Retry-After seconds.
503	`service_unavailable`	The service is temporarily unavailable.
504	`gateway_timeout`	An upstream service didn't answer in time. A POST may still complete; retry with the same Idempotency-Key.

# Signed by sign-headers.sh: see Authentication
curl https://public-api.myntkaup.is/v1/prices \
  $(./sign-headers.sh GET /v1/prices | sed 's/^/-H /')

import { Myntkaup } from "@myntkaup/api";

const client = new Myntkaup(); // reads the key from the environment
const prices = await client.prices.list();
const btc = prices.data.find((price) => price.asset === "BTC");
console.log(prices.tier, btc?.buy, btc?.sell);

from myntkaup import Myntkaup

client = Myntkaup()  # reads the key from the environment
prices = client.prices.list()
btc = next(p for p in prices["data"] if p["asset"] == "BTC")
print(prices["tier"], btc["buy"], btc["sell"])

200 OK

{
  "tier": "tier-1",
  "as_of": "2026-11-03T10:15:10Z",
  "data": [
    {
      "asset": "BTC",
      "quote_currency": "USDC",
      "buy": "96000.12",
      "sell": "94100.55",
      "updated_at": "2026-11-03T10:15:09Z"
    }
  ]
}

Base URL https://public-api.myntkaup.is