getmempoolancestors | Alchemy Docs

Returns the in-mempool ancestors of a given transaction.

apiKeystringRequiredDefaults to docs-demo

This endpoint expects an object.

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

The transaction ID whose ancestors to retrieve.

verbosebooleanOptionalDefaults to false

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

The mempool ancestors of the specified transaction.

list of strings

A list of ancestor transaction IDs.

map from strings to objects

1	curl -X POST https://bitcoin-mainnet.g.alchemy.com/v2/{apiKey} \
2	-H "Content-Type: application/json" \
3	-d '{
4	"jsonrpc": "2.0",
5	"method": "getmempoolancestors",
6	"params": [
7	"b86ae732473ff2c91c04073ec9cbef5e4ddaa701741e141e41345df72122b795",
8	false
9	],
10	"id": 1
11	}'

1	{
2	"jsonrpc": "2.0",
3	"id": "1",
4	"result": [
5	"6f8c6e8d3021d8a1db71eae3cb8db00f1c99d0f94f3b5782e6cfc155b55f3c55",
6	"a4d47b8bdee5f5b8c098c9ac9aa4e3ec113d9f305a4f723d617a92439ab244cb"
7	]
8	}