Mempool Monitoring API
Addresses

Runes by Address (Mempool-aware)

1min
GET
https://xbt-mainnet.gomaestro-api.org/v0/mempool/addresses/{address}/runes
Bitcoin Mainnet

Map of all Runes tokens and corresponding amounts in UTxOs controlled by the specified address or script pubkey.

In addition to confirmed transactions, mempool endpoints return data which reflects pending transactions in some number of "estimated" blocks - predicted blocks containing transactions which have been propagated around the network but not yet included in a mined block, with transactions with a higher sat/vB value being prioritised. The response details how many of these estimated blocks were considered when fetching the data.

Authentication
api-key
Path Parameters
address
*
Query Parameters
mempool_blocks_limit
Responses
200
Requested data
Example
{ "data": { "867138:1861": "230000" }, "indexer_info": { "chain_tip": { "block_hash": "00000000000000000002da06787fe86324e1cc1421861d899b7bd1e340aa1930", "block_height": 867154 }, "mempool_timestamp": "2025-01-06 16:43:32", "estimated_blocks": [{ "block_height": 867155, "sats_per_vb": { "min": 12, "median": 14, "max": 16 } }] } }
data
*
indexer_info
*
400
Malformed query parameters
500
Internal server error