getmempooldescendants | Alchemy Docs

Returns the in-mempool descendants of a given transaction.

⚠ This endpoint is only available with Blast access.

apiKeystringRequired

This endpoint expects an object.

txidstringRequiredformat: "^[a-fA-F0-9]{64}$"

The transaction ID whose descendants to retrieve.

verbosebooleanOptionalDefaults to false

Whether to return detailed info (true) or just txids (false).

The mempool descendants of the specified transaction.

list of strings

A list of descendant transaction IDs.

map from strings to objects

1	curl -X POST https://bitcoin-mainnet.alchemy-blast.com/v2/{apiKey} \
2	-H "Content-Type: application/json" \
3	-d '{
4	"jsonrpc": "2.0",
5	"method": "getmempooldescendants",
6	"params": [
7	"546263a196ce5cf674d5002afc0231ab417c2e971fd4ed1735c7a4c63f44720b",
8	false
9	],
10	"id": 1
11	}'

1	{
2	"jsonrpc": "2.0",
3	"id": "1",
4	"result": [
5	"c3b9f342fc90837fd4a22878b59fdf5cdeae1b4e4586224b0df1b3a2e3e6e9c8",
6	"a2e34d98cb7e98b8d85d3a991c8d1cbd3e7a3f17b4acdf4768c88fa3e0e9d8bc"
7	]
8	}