langbase

name

langbase

description

Langbase is a serverless AI developer platform that enables teams to build, deploy, and scale AI agents and applications with unified APIs, memory (RAG), workflows, and multi-model support—eliminating infrastructure overhead while providing tools for collaboration, observability, and rapid iteration. Read and write Langbase data through One: pipes, memorysets, threads, memory, memorydocuments, traces and more, 55 actions with real parameter documentation. Use whenever the user asks to look something up in Langbase, create or update a record there, or build code against the Langbase API.

Langbase through One

Langbase is a serverless AI developer platform that enables teams to build, deploy, and scale AI agents and applications with unified APIs, memory (RAG), workflows, and multi-model support—eliminating infrastructure overhead while providing tools for collaboration, observability, and rapid iteration.

One exposes Langbase 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 langbase 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 Langbase 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 Langbase 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

Pipes

Action	Method	Path	Action id
Get a Pipe by Owner Login and Pipe Name	GET	/v1/pipes/{{ownerLogin}}/{{pipeName}}	conn_mod_def::GKO9n3nvf4A::h_Sin8nWT0-YAD6bejO0mw
List an Organization's Pipes	GET	/beta/org/{{orgLogin}}/pipes	conn_mod_def::GKO9nKV1CXA::nZuzICaqSpOi5D2BNndnqA
List Pipes	GET	/v1/pipes	conn_mod_def::GKO9oDFU4ng::j0qioPizQMu-YTMHlDe8-g
Create a Pipe	POST	/v1/pipes	conn_mod_def::GKO9n3T4SdA::XbhuX-XIQjGi2kcf-pXjKg
Create an Organization Pipe	POST	/beta/org/{{orgLogin}}/pipes	conn_mod_def::GKO9nKaKq6g::1qSXZp86Qb-eUGMEK1SYbg
Run a Pipe	POST	/v1/pipes/run	conn_mod_def::GKO9n3zu4Lg::BlfR7lioTDGCNcGmUhI8HQ
Update a Pipe	POST	/v1/pipes/{{pipeName}}	conn_mod_def::GKO9oADDWhg::w1RA_cpRRhOl0sIeN7ONog

MemorySets

Action	Method	Path	Action id
List an Organization's Memory Sets	GET	/beta/org/{{orgLogin}}/memorysets	conn_mod_def::GKO9nKHDevA::D1FEIJLZTY6GMb3CVhg4lg
List User Memory Sets	GET	/beta/user/memorysets	conn_mod_def::GKO9nThHN_A::2Jlfx956RlKLPUozK-2b2Q
Create an Organization Memory Set	POST	/beta/org/{{orgLogin}}/memorysets	conn_mod_def::GKO9nCLrKOA::6Ealw3RnR2iOP4XnxROu7w
Delete a User or Organization Memory Set	DELETE	/beta/memorysets/{{ownerLogin}}/{{memoryName}}	conn_mod_def::GKO9m4QG58g::5zq54McyTsygo6ngUvUUfg
Retrieve Similar Chunks from a Memory Set	POST	/beta/memorysets/{{ownerLogin}}/{{memoryName}}/retrieve	conn_mod_def::GKO9nAxcZQg::yCihH0YATzyYczPtsKdQ0g

Threads

Action	Method	Path	Action id
Retrieve a Thread	GET	/v1/threads/{{threadId}}	conn_mod_def::GKO9oKsAJbA::hEnJEwBUQOuXef8au6yiuA
Create Messages in a Thread	POST	/v1/threads/{{threadId}}/messages	conn_mod_def::GKO9oAQrg4g::bkI5EMeWQUWZLhTCOibsSA
Create Thread	POST	/v1/threads	conn_mod_def::GKO9n_5DhTg::TiVjIHChTd2as7uGDNqMsw
Delete a Thread	DELETE	/v1/threads/{{threadId}}	conn_mod_def::GKO9n_WrM_g::-ERe0-m0Qn2bgLgxGQuEAA
Update a Thread	POST	/v1/threads/{{threadId}}	conn_mod_def::GKO9oKegm0g::Xs3P_omRThyvk01tuF7agQ

Memory

Action	Method	Path	Action id
List Memory	GET	/v1/memory	conn_mod_def::GKO9nuVXSog::BVliCEsGSsmy8_D6MtXqnA
Create Memory	POST	/v1/memory	conn_mod_def::GKO9nkz1zNg::h5KcetZ1S22rJYt4qYBkWg
Delete a Memory	DELETE	/v1/memory/{{memoryName}}	conn_mod_def::GKO9nuhIgsA::ePzmA4AxTcaXdvL3B096_A
Retrieve Similar Chunks for Memory	POST	/beta/memory/retrieve	conn_mod_def::GKO9nA807PA::21wUz51MSGKanICBd6q22w

MemoryDocuments

Action	Method	Path	Action id
List a Memory's Documents	GET	/v1/memory/{{memoryName}}/documents	conn_mod_def::GKO9nuS3iBg::f2_kboXsSQysCBd-djb3KA
Delete a Memory Document	DELETE	/v1/memory/{{memoryName}}/documents/{{documentName}}	conn_mod_def::GKO9nAnb1Kg::B1_Wl1NWRn2qgIUX4lArZg
Upload a Memory Document	POST	/v1/memory/documents	conn_mod_def::GKO9nu9D4Sg::BcqesHbUTJ-nNvvxPZR_Zg

Traces

Action	Method	Path	Action id
Get a Trace	GET	/v1/traces/{{traceId}}	conn_mod_def::GKO9oVaebXg::ZNW5ZNQdQfCV89rE7_QHEQ
List Traces	GET	/traces	conn_mod_def::GKO9oWEu4VA::qaXEAnutTv-_Q-ll63jrMw
Create Traces	POST	/v1/traces	conn_mod_def::GKO9oVuG0jA::Q3OynrrwSP6WAlCy2W5_Pg

BetaPipes

Action	Method	Path	Action id
Run Beta Pipe	POST	/beta/pipes/run	conn_mod_def::GKO9nUiFybA::Cf-eZORjSWuOalSc_l9O9Q
Update a Beta Pipe for an Owner	POST	/beta/pipes/{{ownerLogin}}/{{pipeName}}	conn_mod_def::GKO9nLG2iKg::xGAkqscpR2Kf35DihaSijg

UserPipes

Action	Method	Path	Action id
List User Pipes	GET	/beta/user/pipes	conn_mod_def::GKO9nbvSJTA::K-P4hViWTZOCF_XUGBhHUg
Create a User Pipe	POST	/beta/user/pipes	conn_mod_def::GKO9nUoFRZA::H9KdXADpTx-Dc6jX_6vwPg

ThreadMessages

Action	Method	Path	Action id
Delete a Thread Message	DELETE	/v1/threads/{{threadId}}/messages/{{messageId}}	conn_mod_def::GKO9oNchsZA::jzmIyttdSl23n9V19RDjAw
Update a Thread Message	POST	/v1/threads/{{threadId}}/messages/{{messageId}}	conn_mod_def::GKO9oKfPiug::zDHpSbvvQqS0OerI4e9BMA

OrganizationMemoryDocuments

Action	Method	Path	Action id
Upload an Organization Memory Document	POST	/beta/org/{{orgLogin}}/memorysets/documents	conn_mod_def::GKO9nLXHmGA::Giqu7cF5QSiUx8G8pZLy5A

LangbaseApiBaseInformation

Action	Method	Path	Action id
Get Langbase API Base Information	GET	/	conn_mod_def::GKO9m03_qug::259oAx9pTP63fgRRmuscYg

BetaChat

Action	Method	Path	Action id
Beta Chat	POST	/beta/chat	conn_mod_def::GKO9m2WkrTg::75PFlVcPQLOIykt8W4SxdA

MemorySetDocuments

Action	Method	Path	Action id
Retry Embeddings Generation for a Memory Set Document	POST	/beta/memorysets/{{ownerLogin}}/documents/embeddings/retry	conn_mod_def::GKO9m3XudhA::UTjYhzCxSBm17-B7HUIKMw

BetaGenerate

Action	Method	Path	Action id
Beta Generate	POST	/beta/generate	conn_mod_def::GKO9m3X5N_g::C2aPVsZ0QL-_Db3PqMp9xQ

MemorySetsDocuments

Action	Method	Path	Action id
List a Memory Set's Documents	GET	/beta/memorysets/{{ownerLogin}}/{{memoryName}}/documents	conn_mod_def::GKO9nAlv58A::Aoz93WJXTsKfqaYQwJoZTQ

UserMemorySets

Action	Method	Path	Action id
Create a User Memory Set	POST	/beta/user/memorysets	conn_mod_def::GKO9nUB0jng::rHHXggHGTcOWy4ALyIlyVQ

UserMemorySetDocuments

Action	Method	Path	Action id
Upload a Document to a User Memory Set	POST	/beta/user/memorysets/documents	conn_mod_def::GKO9nUDlOjg::6LHO44JyTPqFIq-NNQ-O5Q

Models

Action	Method	Path	Action id
List Models	GET	/v1/models	conn_mod_def::GKO9nbqTdyg::nAbO5F25QUWt7_GWC59PGw

MemoryChunks

Action	Method	Path	Action id
Retrieve Memory Chunks	POST	/v1/memory/retrieve	conn_mod_def::GKO9n3sud8A::SSySKblpRraw5fX3y75S1w

Health

Action	Method	Path	Action id
Check API Health	GET	/health	conn_mod_def::GKO9ncG4RvA::EQWsHnZ1Qsuzvga-9581jQ

PublicAgentCompute

Action	Method	Path	Action id
Run a Public Agent Compute	POST	/{{ownerLogin}}/{{agent}}	conn_mod_def::GKO9ncIvleg::9bef3WEmRAydE_kRF9I3oA

Images

Action	Method	Path	Action id
Generate Images	POST	/v1/images	conn_mod_def::GKO9ndWX6Ig::rsReDbIKRzOrsbVk6kmo5Q

Routes

Action	Method	Path	Action id
List Routes	GET	/routes	conn_mod_def::GKO9nkIwhZA::777bfUvcQ6y8n9iJ6knW4w

Embeddings

Action	Method	Path	Action id
Create Embeddings	POST	/v1/embed	conn_mod_def::GKO9nlIHQUg::jfwYHy9fSK6shoWy2wV2wg

Chunker

Action	Method	Path	Action id
Chunk Content	POST	/v1/chunker	conn_mod_def::GKO9nlZanag::zqWlQ-RBRJukiVscYW7n3g

Agent

Action	Method	Path	Action id
Run an Agent	POST	/v1/agent/run	conn_mod_def::GKO9nlaVeBA::RfNGXa8XT3umHiu3TNG5ug

MemoryDocumentsEmbeddings

Action	Method	Path	Action id
Retry a Memory Document's Embeddings	GET	/v1/memory/{{memoryName}}/documents/{{documentName}}/embeddings/retry	conn_mod_def::GKO9nvlZqqg::8Fj5SpKmRtaulRmo92k4vw

Parser

Action	Method	Path	Action id
Parse a Document	POST	/v1/parser	conn_mod_def::GKO9n3J7uOA::vjgTaPqHQ-mql4KTvVZyDA

ThreadsMessages

Action	Method	Path	Action id
List a Thread's Messages	GET	/v1/threads/{{threadId}}/messages	conn_mod_def::GKO9oK2yBxA::yEG6Bd5CQu6DzEHhkBQY5A

CrawlerTool

Action	Method	Path	Action id
Crawl URLs with the Crawler Tool	POST	/v1/tools/crawl	conn_mod_def::GKO9oWM6gDA::tYqVfkFwRbWXAwKpmD0qOA

WebSearch

Action	Method	Path	Action id
Web Search Tool	POST	/v1/tools/web-search	conn_mod_def::GKO9oWviv5A::hyKeXU-PSvmYAu7cIvS7ZQ

When a call fails

The error comes from Langbase, 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/langbase

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