Zset add in KV

Adds members to a sorted set or updates their scores (ZADD), creating it.

Checked 2026-09-28

Adds members to a sorted set or updates their scores (ZADD), creating it.

Path POST https://api.data.sylphx.com/v1/kv-zsets
Scope data:write
Effect write — a successful call changes state.
Collection kv
Host https://api.data.sylphx.com

#Request

Field	Type	What it is
`namespace_id`	`string`	The namespace's id. Required.
`key`	`string`	The sorted set's key. Required.
`members`	`ZSetMember[]`	The members to add or rescore. Required.

#ZSetMember

Field	Type	What it is
`member`	`string`	The member. Required.
`score`	`double`	The score; unset in a range read without `with_scores`.

#Response

Field	Type	What it is
`added`	`uint64`	How many members were new.
`version`	`uint64`	The sorted set's version after the write.

#Errors

UNAUTHENTICATED — No valid key or token was presented.
PERMISSION_DENIED — The key lacks the method's permission.
INVALID_FIELD — A field failed validation.
RESOURCE_NOT_FOUND — The named Resource does not exist or is not visible.

Every error arrives in the body Errors describes.

#Examples

curl -X POST "https://api.data.sylphx.com/v1/kv-zsets" \
  -H "Authorization: Bearer $SYLPHX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"key":"…","members":[{"member":"…"}],"namespace_id":"…"}'

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