mem0

name

mem0

description

Mem0 is a memory layer for AI applications that enables developers to store, retrieve, and personalize long-term context across conversations and workflows, allowing agents and copilots to maintain user preferences, facts, and history through APIs and developer tooling. Read and write Mem0 data through One: memories, projects, organizationmembers, organizations, projectmembers, entities and more, 52 actions with real parameter documentation. Use whenever the user asks to look something up in Mem0, create or update a record there, or build code against the Mem0 API.

Mem0 through One

Mem0 is a memory layer for AI applications that enables developers to store, retrieve, and personalize long-term context across conversations and workflows, allowing agents and copilots to maintain user preferences, facts, and history through APIs and developer tooling.

One exposes Mem0 through four MCP tools. The table below carries real action ids from One's knowledge base, so for a common operation you can skip search and go straight to reading the action's parameters.

How to run an action

1. Find the action in the table below, or call search_one_platform_actions with platform mem0 if it is not listed.
2. Call get_one_action_knowledge with the action id. Do this every time, including for actions in this table. The table gives you the id, not the parameters.
3. Call execute_one_action with parameters copied from that knowledge.

Never guess a parameter name, a body field, or an enum value. The knowledge has the real schema, and a guessed field is either a 400 or a silent write of the wrong thing.

Before you start

Call list_one_integrations once and confirm Mem0 is connected. If it is missing, the user has not connected it: say so and point them at https://app.withone.ai rather than reaching for raw HTTP.

Each connection carries an access field. If it reports {"policy": "methods", "methods": ["GET"]} the agent is read-only here, so plan a read-only answer instead of attempting a write that will be refused.

Before a write

Creates, updates, deletes and sends land on a real Mem0 account and cannot be recalled. State the action and the specific target in one line before the first write in a task, and let the user stop you. Reads need no confirmation.

Actions

Memories

Action	Method	Path	Action id
Get a Memory	GET	/v1/memories/{{memoryId}}/	conn_mod_def::GLf3jyEh8Og::EkTHjGyCQMqylsiXCxYc5w
Get Memories for an Entity	GET	/v1/memories/{{entityType}}/{{entityId}}/	conn_mod_def::GLf3jkoZxOA::o6GRCzbnRhKzUK2hXfAs8g
List Memories	GET	/v1/memories/	conn_mod_def::GLf3j1EErzA::pskOPsuyT7ikayY6EiURhg
Add Memories	POST	/v1/memories/	conn_mod_def::GLf3jqTTQ3A::4_RvbsxWTC2lmTq806XoTg
Add Memories Using V3	POST	/v3/memories/add/	conn_mod_def::GLf3jcPf7BA::buQ8MGcJSkmq2-l4izC3_A
Batch Delete Memories	DELETE	/v1/batch/	conn_mod_def::GLf3jb5mMFA::cKOKUi4jRK-Y1rlF69HDxA
Batch Update Memories	PUT	/v1/batch/	conn_mod_def::GLf3jb53Szg::huEr-XXLRTiqNEU7hx4aeg
Delete a Memory	DELETE	/v1/memories/{{memoryId}}/	conn_mod_def::GLf3jjWyxvA::q-zkd1iaTN6bgBGmyx2iNw
Delete All Memories	DELETE	/v1/memories/	conn_mod_def::GLf3jlwCZPA::tCZP_kSBSoath2wkjoRxUg
List Memories	POST	/v2/memories/	conn_mod_def::GLf3jyHmsBg::OGFExo8QQvK9AktEiL3EmA
List Memories Using V3	POST	/v3/memories/	conn_mod_def::GLf3jcOcT3g::oZrgj3q6Twml0JUYGXs8Bw
Search Memories	POST	/v1/memories/search/	conn_mod_def::GLf3jzBXtZg::vO1JBmm1Qxa2aM-I2wpOAg

3 more Memories actions are available through search.

Projects

Action	Method	Path	Action id
Get Project Details for an Organization	GET	/api/v1/orgs/organizations/{{orgId}}/projects/{{projectId}}/	conn_mod_def::GLf3koIc5JA::mq-dQY9qQO2X6Ac_g3tmsQ
List an Organization's Projects	GET	/api/v1/orgs/organizations/{{orgId}}/projects/	conn_mod_def::GLf3klAQfAA::Qlv-Ie_nTUmhfAq6vXgLvw
Create Project for an Organization	POST	/api/v1/orgs/organizations/{{orgId}}/projects/	conn_mod_def::GLf3kWG9qng::4NkpZ7GtSzqE8gQuNhHNWQ
Delete a Project in an Organization	DELETE	/api/v1/orgs/organizations/{{orgId}}/projects/{{projectId}}/	conn_mod_def::GLf3kWmO2yg::-j4OIEpTRr-z2mLZN1H7JQ
Update a Project	PATCH	/api/v1/orgs/organizations/{{orgId}}/projects/{{projectId}}/	conn_mod_def::GLf3kkigoUg::tvIn9E_pTVm0G4XZfe1ARA

OrganizationMembers

Action	Method	Path	Action id
Get Organization Members	GET	/api/v1/orgs/organizations/{{orgId}}/members/	conn_mod_def::GLf3kGmRWQg::s97sLbjLS3CvJkzfIW4k0A
Add Organization Member	POST	/api/v1/orgs/organizations/{{orgId}}/members/	conn_mod_def::GLf3j8kPoEg::lT9kFjbBTGSwJQnoI4DXZw
Remove a Member from an Organization	DELETE	/api/v1/orgs/organizations/{{orgId}}/members/	conn_mod_def::GLf3kHIkELA::nipWxj_8QsOIPjuG_aD_hA
Update an Organization Member Role	PUT	/api/v1/orgs/organizations/{{orgId}}/members/	conn_mod_def::GLf3kVohNcg::-Jv3p_JyRXW051WRy5VIKg

Organizations

Action	Method	Path	Action id
Get an Organization	GET	/api/v1/orgs/organizations/{{orgId}}/	conn_mod_def::GLf3kOFetIA::F3wx4CxAQ9y69Uv_hCFZfg
List Organizations	GET	/api/v1/orgs/organizations/	conn_mod_def::GLf3kGnFcPg::vszxWEVOQ5e2Z28XmkBV3w
Create Organization	POST	/api/v1/orgs/organizations/	conn_mod_def::GLf3j_UdmHA::A4YQ678DTtOCp0dq-jthzg
Delete an Organization	DELETE	/api/v1/orgs/organizations/{{orgId}}/	conn_mod_def::GLf3kG1CJDg::oSPzZ0ofRXWHlkKLG95dGA

ProjectMembers

Action	Method	Path	Action id
Get Project Members for an Organization Project	GET	/api/v1/orgs/organizations/{{orgId}}/projects/{{projectId}}/members/	conn_mod_def::GLf3kkn4PiA::rUq3DKWCQiCv7bVyXoauxw
Add Member to a Project	POST	/api/v1/orgs/organizations/{{orgId}}/projects/{{projectId}}/members/	conn_mod_def::GLf3kdE9x3A::3AeWFxMHSnKPnXV_PYtKYA
Delete Project Member	DELETE	/api/v1/orgs/organizations/{{orgId}}/projects/{{projectId}}/members/	conn_mod_def::GLf3kVdZ4Dg::3NQkdco7QoaEoZ7eiO9z9A
Update Project Member Role for an Organization Project	PUT	/api/v1/orgs/organizations/{{orgId}}/projects/{{projectId}}/members/	conn_mod_def::GLf3klfcScg::f59S8XJSThKjjzS8h9Uu2Q

Entities

Action	Method	Path	Action id
List Entities	GET	/entities/	conn_mod_def::GLf3jI7V-DA::bk7M5y_NQ1aKscLY18pRaw
Read an Entity	GET	/v2/entities/{{entityType}}/{{entityId}}/	conn_mod_def::GLf3jRroF-A::t7SonPdrT2mTjE2FaheOkA
Delete an Entity	DELETE	/v2/entities/{{entityType}}/{{entityId}}/	conn_mod_def::GLf3jJukdSg::nY2J7_G3QfegD7tHVhta0A

Webhooks

Action	Method	Path	Action id
Create Webhook for a Project	POST	/api/v1/webhooks/projects/{{projectId}}/	conn_mod_def::GLf3kxwzEzg::zSlOEHCkSbG7fL-YLgSQTA
Delete Webhook	DELETE	/api/v1/webhooks/{{webhookId}}/	conn_mod_def::GLf3kvotNKg::A_Dbb_mKQr6qc5NoKpX5fA
Update a Webhook	PUT	/api/v1/webhooks/{{webhookId}}/	conn_mod_def::GLf3k5vv3ZA::J3AuMxp7RUiBBY_SFVEEng

Exports

Action	Method	Path	Action id
Create an Export Job	POST	/v1/exports/	conn_mod_def::GLf3jSpAf8A::de19xPk7QWWRX-n52G1Qyw
Get an Export Using Exports Get	POST	/v1/exports/get	conn_mod_def::GLf3jTy8yJg::81bkAc87SieL6iJm5PhymA

Agents

Action	Method	Path	Action id
Create an Agent	POST	/agents/	conn_mod_def::GLf3jItTXTg::f43CBTJ7SIyCHuAmifDYxA

EntityFilters

Action	Method	Path	Action id
List Entity Filters	GET	/entities/filters/	conn_mod_def::GLf3jIuWnBA::_HyXj5WuT0KWP8i0r-yGng

Apps

Action	Method	Path	Action id
Create an App	POST	/v1/apps/	conn_mod_def::GLf3jJukVeg::CnuH0qonQmS760nIuP5pBQ

Event

Action	Method	Path	Action id
Retrieve an Event by ID	GET	/v1/event/{{eventId}}/	conn_mod_def::GLf3jRhqlMA::Q42oh8hGSEu6EM0q91ab5Q

Events

Action	Method	Path	Action id
List Events	GET	/v1/events/	conn_mod_def::GLf3jSa6-rA::ow-Mk73DRvCNBLK1DpnZOg

Feedback

Action	Method	Path	Action id
Submit Feedback	POST	/v1/feedback/	conn_mod_def::GLf3jb45mkA::IrWYUtEWTeq7traaJwdlCQ

MemoryEvents

Action	Method	Path	Action id
List Memory Events	GET	/memories/events/	conn_mod_def::GLf3jjW9Kxg::E_Jo1wgAT9mVsKuFw10RZg

MemoryHistory

Action	Method	Path	Action id
Retrieve Memory History	GET	/v1/memories/{{memoryId}}/history/	conn_mod_def::GLf3jymatAg::D_sr2QyRS1SXupBwcxLsQw

Users

Action	Method	Path	Action id
Create a User	POST	/users/	conn_mod_def::GLf3kvDj9nA::nAIVKzxvTRWEhU5vZPivdw

Statistics

Action	Method	Path	Action id
Retrieve Statistics	GET	/v1/stats/	conn_mod_def::GLf3kvQJrCg::Um07-ZeZTdWWZBwQGrEURA

Runs

Action	Method	Path	Action id
Create a New Agent Run	POST	/v1/runs/	conn_mod_def::GLf3kvWAhRg::Rne7sEZFTfCDNeZWzPPsAQ

ProjectWebhooks

Action	Method	Path	Action id
Get Project Webhooks	GET	/api/v1/webhooks/projects/{{projectId}}/	conn_mod_def::GLf3k5vy2zA::kiBjL8mfTJeE5XnOpfObmQ

This lists 49 of 52 actions. For anything not here, call search_one_platform_actions with platform mem0. The full catalog is at https://www.withone.ai/knowledge/mem0.

When a call fails

The error comes from Mem0, not from One. A 400 or 422 means your parameters do not match the schema, so re-read the knowledge and fix the field. A 401 or 403 means the connection needs re-authorizing, which no retry will fix. A 404 means the id is not on this account. A 429 means slow down. Never retry a write more than once: the first attempt may have landed.

Full catalog: https://www.withone.ai/knowledge/mem0

Integration knowledge by One (withone.ai), licensed under One-Knowledge-1.0. Attribution must be preserved in derivative works.