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On this page

Request
Memory
ResourceMeta
Response
ResourceMeta
MemoryProvenance
Errors
Examples

Reference

Create a memory

Writes a memory.

Checked 2026-09-28

Writes a memory.

Not available yet. Sylphx Agents is declared in the registry but no backend serves it: every call answers 501 with the problem code UNIMPLEMENTED.

Path POST https://api.sylphx.com/v1/orgs/acme/projects/shop/envs/production/memory_stores/memory-store/memories
Scope agents:write
Effect write — a successful call changes state.
Collection memories
Query memory_id, validate_only

#Request

Field	Type	What it is
`parent`	`string`	The memory store to create in. Required.
`memory_id`	`string`	The memory id, the final name segment; the server assigns one when empty.
`memory`	`Memory`	The memory to create; only caller-writable fields are read. Required.
`validate_only`	`bool`	Validate and return the result without writing anything.

#Memory

Field	Type	What it is
`name`	`string`	`orgs/{org}/projects/{project}/envs/{env}/memory_stores/{memory_store}/memories/{memory}`.
`meta`	`ResourceMeta`	Resource metadata.
`content`	`string`	The memory, at most 16 KiB of text. Required.
`end_user`	`string`	The end user it is about, for a store scoped to end users.
`agent`	`string`	The agent it belongs to, for a store scoped to agents.

#ResourceMeta

Field	Type	What it is
`labels`	`map<string, string>`	Caller-writable, indexed labels (AIP-122 label rules).
`annotations`	`map<string, string>`	Caller-writable, unindexed annotations.
`display_name`	`string`	Caller-writable human-readable name.

#Response

Field	Type	What it is
`name`	`string`	`orgs/{org}/projects/{project}/envs/{env}/memory_stores/{memory_store}/memories/{memory}`.
`uid`	`string`	`mem_<cell><ulid>`; never reused. Output only.
`meta`	`ResourceMeta`	Resource metadata.
`content`	`string`	The memory, at most 16 KiB of text. Required.
`end_user`	`string`	The end user it is about, for a store scoped to end users.
`agent`	`string`	The agent it belongs to, for a store scoped to agents.
`provenance`	`MemoryProvenance`	Where it came from. Output only.
`create_time`	`timestamp`	When it was written. Output only.
`update_time`	`timestamp`	When it was last changed. Output only.

#ResourceMeta

Field	Type	What it is
`generation`	`int64`	Increases by one on every change to `spec`. Output only.
`etag`	`string`	Strong ETag (AIP-154): changes on any change to spec, status, or metadata. Send it back as `If-Match` or `etag` to make Update and Delete conditional; a mismatch fails with ABORTED / 409 `ETAG_MISMATCH`. Output only.
`create_time`	`timestamp`	When the Resource was created. Output only.
`update_time`	`timestamp`	When the Resource last changed. Output only.
`delete_time`	`timestamp`	Set while the Resource is being deleted. Output only.
`labels`	`map<string, string>`	Caller-writable, indexed labels (AIP-122 label rules).
`annotations`	`map<string, string>`	Caller-writable, unindexed annotations.
`display_name`	`string`	Caller-writable human-readable name.
`creator`	`string`	The principal that created the Resource. Output only.

#MemoryProvenance

Field	Type	What it is
`source`	`MemorySource`	Who wrote it. Output only. One of `agent`, `api`, `import`.
`session`	`string`	The session it was learned in, when an agent wrote it. Output only.
`event`	`string`	The event it was learned from, when an agent wrote it. Output only.
`principal`	`string`	The principal that wrote it, when a caller did. Output only.

#Errors

UNAUTHENTICATED — No valid key or token was presented.
PERMISSION_DENIED — The key lacks the method's permission.
UNKNOWN_FIELD — The request has a field the schema does not know.
INVALID_FIELD — A field failed validation.
RESOURCE_ALREADY_EXISTS — A Resource with this name exists.
IDEMPOTENCY_KEY_REUSED — An Idempotency-Key was reused with another body.
IDEMPOTENCY_IN_PROGRESS — The first call with this Idempotency-Key is still running.
PLAN_LIMIT_REACHED — The plan's limit is reached.

Every error arrives in the body Errors describes.

#Examples

curl -X POST "https://api.sylphx.com/v1/orgs/acme/projects/shop/envs/production/memory_stores/memory-store/memories" \
  -H "Authorization: Bearer $SYLPHX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"content":"…"}'

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