Migrate from Mem0
If you built on Mem0, the Korely API will feel familiar. The verbs are the
same: add a memory, search memories, list them, delete them. The scoping is
the same: user_id identifies your end user,
agent_id identifies your application, run_id
identifies a session. Switching is mechanical: map the calls, replay the
corpus through the batch endpoint, verify with a search.
The short version: three steps. Export your memories
from Mem0 as JSON, import them with POST /v1/batch, then
run a search against the migrated corpus. Entity extraction, graph
edges, and typed facts build automatically on ingest. There is nothing
to enable and nothing to configure.
Concept mapping
Mem0 and Korely share the same scoping vocabulary. The table below maps each Mem0 concept to its Korely equivalent so you know what to keep, what to rename, and what is new.
| Mem0 concept | Korely equivalent | Notes |
|---|---|---|
| Memory | Memory (mem_*) | Same unit. Stored text plus metadata, scoped by user/agent/run. |
user_id | user_id | Identical. Free-form string. End users are unlimited on every plan. |
agent_id | agent_id | Identical. Namespaces your application. Count is plan-gated (hobby: 2, developer: 10). |
run_id | run_id | Identical. Sub-scopes one session or conversation. |
metadata | metadata | Identical. Arbitrary JSON object, stored and returned verbatim. |
| Graph memory | Entity graph + typed facts (fct_*) | Korely extracts entities and typed (subject, predicate, object) triples from every memory at write time. No separate enable flag. Available on all plans, free hobby tier included — and unlike Mem0, the typed bi-temporal fact layer is not removed from any plan. |
| Categories / custom categories | Predicate families | Korely groups predicates into canonical families (preferences, people, places, work, ownership, health, financial, events) plus an other bucket for everything outside those groups. No custom categories; the graph self-organises from the text. |
| History | History + bi-temporal validity | Korely keeps a supersede chain for every memory (GET /v1/memories/{id}/history) and a separate bi-temporal record for each fact. Contradicted facts are invalidated, not deleted. |
| Export job / import job | Batch job (job_*) | POST /v1/batch accepts up to 500 memories per request, processed asynchronously. Poll with GET /v1/batch/{id}. |
| Organization | API key (kor_live_*) | One API key = one tenant. Multiple agents live under the same key, each with its own agent_id. |
Call mapping
Every core Mem0 call has a direct Korely equivalent, in the Python SDK and over REST. The full REST contract is in the API reference.
| Mem0 call | Korely SDK | Korely REST |
|---|---|---|
m.add("...", user_id="u1") | korely.add("...", user_id="u1") | POST /v1/memories |
m.search("...", user_id="u1") | korely.search("...", user_id="u1") | POST /v1/memories/search |
m.get_all(user_id="u1") | korely.get_all(user_id="u1") | GET /v1/memories?user_id=u1 |
m.get(memory_id) | korely.get(memory_id) | GET /v1/memories/:id |
m.update(memory_id, data="...") | korely.update(memory_id, content="...") | PATCH /v1/memories/:id |
m.delete(memory_id) | korely.delete(memory_id) | DELETE /v1/memories/:id |
m.delete_all(user_id="u1") | korely.delete_all(user_id="u1") | DELETE /v1/users/:user_id/memories |
m.history(memory_id) | korely.history(memory_id) | GET /v1/memories/:id/history |
The scoping parameters carry over with the same names and the same
semantics. user_id is your end user's identifier, free-form,
and end users are unlimited on every tier. agent_id namespaces
your application. run_id sub-scopes one session. Filters are
additive.
In code, the switch looks like this:
# before
from mem0 import MemoryClient
m = MemoryClient(api_key="...")
m.add("Prefers invoices as PDF", user_id="customer-4812")
# after
from korely_memory import Korely
korely = Korely(api_key="kor_live_...")
korely.add("Prefers invoices as PDF", user_id="customer-4812")
results = korely.search("invoice preferences", user_id="customer-4812") Python and Node.js today.
Gotchas
The surface is familiar, but a handful of parameter names and behaviours differ. Check these before running your migration.
| Mem0 | Korely | What to do |
|---|---|---|
m.update(id, data="...") | korely.update(id, content="...") | Rename the keyword argument from data to content. Shape is otherwise identical. |
m.add(..., timestamp=...) | REST timestamp (SDK add() does not expose it) | POST /v1/memories accepts an optional timestamp, stored as the fact's valid_from, so a backdated memory anchors temporal validity to the original event. The SDK korely.add() convenience method does not surface it, and the batch endpoint takes no per-item timestamp — for those, carry the event time in metadata. |
categories / custom_categories | Predicate families (automatic) | Korely self-organises facts into canonical predicate families (with an other catch-all); there are no caller-defined categories. Filter facts with get_facts(predicate_family=...), or by entity when a predicate falls in other. |
output_format / version | Not applicable | Korely returns one stable JSON shape. Drop these parameters. |
Watch for 403 agent_cap_exceeded. Each plan caps the
number of distinct agent_id values (hobby: 2, developer: 10,
team: 100, scale: 500). End users under each agent are unlimited. If you
fan out a separate agent_id per customer, switch to a
per-user namespace with user_id instead and a single shared
agent_id.
409 stale_write on update. PATCH /v1/memories/{id}
accepts an optional expected_updated_at field for optimistic
concurrency. If you pass it and the memory has changed since you last
read it, the server returns 409 stale_write. Either omit the
field (last-write-wins) or re-fetch before retrying.
Step 1: export from Mem0
Use the Mem0 platform export API: create an export job, then fetch the
JSON payload when it completes. The export contains one object per memory
with the text under memory, plus the user_id and
metadata you stored. That shape maps onto the Korely batch
payload almost field for field.
Step 2: import with the batch endpoint
POST /v1/batch accepts up to 500 memory objects per request,
same shape as POST /v1/memories, processed asynchronously.
You get a job id back and poll it until it completes. Each imported item
runs the full write pipeline: document and chunk embeddings, entity
extraction on our own infrastructure, typed-fact extraction with
contradiction checking and bi-temporal validity. About a tenth of a cent
of intelligence per memory, all included in your plan.
import json, requests
export = json.load(open("mem0_export.json"))
memories = [ { "content": item["memory"], "user_id": item.get("user_id"), "metadata": item.get("metadata", {}), } for item in export["results"]]
# POST /v1/batch takes up to 500 memories per requestfor i in range(0, len(memories), 500): r = requests.post( "https://api.korely.ai/v1/batch", headers={"Authorization": "Bearer kor_live_..."}, json={"memories": memories[i : i + 500]}, ) print(r.json()) # {"id": "job_4e1aa0", "status": "processing", "received": 500}Poll the job until it reports completed:
curl https://api.korely.ai/v1/batch/job_4e1aa0 \ -H "Authorization: Bearer kor_live_..."
# 200 OK{"id": "job_4e1aa0", "status": "completed", "imported": 500, "failed": 0} Keep the import inspectable. Tag migrated memories in
metadata — for example {"source": "mem0_export"}
— so you can filter them later with GET /v1/memories or
verify the import scope with a targeted search.
Step 3: verify with search
Pick a query you know your old corpus can answer and run it scoped to one
end user. Memory search is semantic vector retrieval — cosine similarity
over embeddings. The only model call on the read path is the query
embedding, a fraction of a hundredth of a cent. No generative model
composes the output. Your agent's own model does the reasoning over the
results. For recall assembled from the typed-fact layer rather than raw
snippets, reach for GET /v1/context — see below.
curl -X POST https://api.korely.ai/v1/memories/search \ -H "Authorization: Bearer kor_live_..." \ -H "Content-Type: application/json" \ -d '{"query": "invoice preferences", "user_id": "customer-4812", "limit": 5}'
# 200 OK{ "results": [ {"id": "mem_3fa1c9", "score": 0.91, "snippet": "Prefers invoices as PDF, replies fastest before 10am CET.", "user_id": "customer-4812", "agent_id": null, "metadata": {"source": "mem0_export"}} ]}
Extraction runs on ingest, so the graph and the fact store fill in as the
batch completes. A GET /v1/facts call against a migrated
entity confirms the typed layer is populated.
The recall path your agent should default to is
GET /v1/context. It returns a ready-to-inject block
assembled from the active typed facts plus the most relevant memories —
the differentiator over a raw snippet list. Call it with
query, user_id (optional agent_id,
token_budget, default 800) and you get back
{"context": "## Known facts...", "tokens": 30, "sources": [...]},
where sources mixes the fct_ and
mem_ ids that grounded the answer. Raw
POST /v1/memories/search stays available when you want the
individual snippets and scores.
What your agents gain
A typed knowledge graph
Every imported memory goes through entity extraction. People, companies,
products, places, and concepts become nodes; relations between them become
typed edges, drawn from canonical predicates grouped into families
(preferences, people, places, work, ownership, health, financial, events,
and an other bucket for predicates outside the named groups).
The graph is queryable: GET /v1/facts?entity=... returns every
typed fact touching an entity — its neighbourhood in the graph — so you can
walk from any subject to what it is connected to. These reads are
deterministic SQL with zero AI calls, reusing stored vectors rather than
computing new embeddings.
# list all memories for a user (SDK)
memories = korely.get_all(user_id="customer-4812")
# or over REST
# GET /v1/memories?user_id=customer-4812&limit=20
# check the graph layer with GET /v1/facts?user_id=customer-4812
# {"facts": [{"subject": "customer-4812", "predicate": "likes", "predicate_raw": "prefers",
# "object": "PDF invoices", "predicate_family": "preferences", "invalid_at": null, ...}], "total": 1} See the graph for a full explanation of how entities connect memories and how to traverse those connections over the REST API.
Bi-temporal facts
Each memory also yields typed (subject, predicate, object) triples, and
every triple carries valid_from and invalid_at.
When new information contradicts an existing fact, a two-stage
contradiction check at write time invalidates the old fact and keeps it as
history. Default reads return only what is true now; pass
include_invalidated=true for the full supersede chain, or
as_of on GET /v1/facts for a point-in-time view.
Facts reads are deterministic SQL, typically under 50 ms, and return flat
JSON — {"facts": [...], "total": N} — with each fact's
raw verb preserved in predicate_raw alongside the normalized
predicate. The temporal engine runs on every tier, and
GET /v1/facts / korely.get_facts() work on every
plan, free hobby tier included. The full model is in
temporal facts.
Memory your end users can see
Korely ships a desktop and web app where the human sees the same memory your agents use. The Memory Panel lists every fact; each one can be edited or forgotten (erasure with audit cascade), and an Entity Profile drawer shows everything known about one entity. A fact a user erases there does not come back to agents, on any read path. If agents carry long-term memory about people, the people get the delete button. Read human in the loop for the full model.
Underneath all three: reads are retrieval, not generation. The intelligence runs once, at write time, which is why read quotas are an order of magnitude more generous than write quotas. Quotas for each plan are on the pricing page.
Next steps
- Quickstart: wire Korely into your stack and run your first search in five minutes.
- API reference: the complete REST contract behind every call in the mapping table.
- Architecture: where the write-time intelligence runs and why the read path stays deterministic.
- Questions about a large corpus or an unusual export shape? Email [email protected]. We read every message.