Langbase

20 tools available

Langbase is a serverless AI developer platform that enables developers to build, collaborate, and deploy AI agents and applications with composable AI infrastructure.

ai agents developer tools

Connect Langbase Visit Langbase ↗

Connect Langbase to Definable to automate repetitive tasks, sync data with the rest of your stack, trigger on real-world events. Personas call Langbase's 20 tools directly from chat or scheduled flows. You can wire it into any persona to read, write, and react when an event fires.

Common workflows with Langbase

Trigger on event

Listen for a new event
Parse and validate the payload
Take an action with the linked tool

Daily summary

Pull yesterday's activity
Summarise with the model of your choice
Send the digest via email or Slack

Cross-tool sync

Read records from one app
Transform with a persona
Write the result back via this integration

Langbase actions 20

Every Langbase action below is a callable tool any Definable persona can invoke.

Append Thread Messages

Tool to add new messages to an existing conversation thread. Use when continuing a chat session or adding context to a thread.

Check API Health

Tool to check the health status of the Langbase API service. Use when you need to verify API availability.

Split Content into Chunks

Tool to split content into smaller chunks. Use when processing large text segments to fit downstream limits.

Create Thread

Tool to create a new conversation thread. Use when starting a fresh chat session or grouping messages into a distinct thread.

Delete Thread

Tool to delete a thread that is no longer needed to manage conversation history. Use when you need to permanently remove a thread by its ID.

Delete Thread Message

Tool to delete a specific message from a conversation thread. Use when you need to remove a message from a thread by its ID.

List Documents in Memory

Tool to list documents in a specific memory. Use when you need to fetch document metadata (and optionally vectors) from a memory after confirming its name. Supports pagination via limit and startAfter parameters.

Get Pipe Details

Tool to retrieve details of a specific pipe by owner and name. Use when you need to fetch configuration and settings of a particular pipe.

Get Thread Details

Tool to retrieve details of a specific conversation thread. Use when you need the full thread details by its ID after confirming its existence.

List Available Models

Tool to get available AI models supported by Langbase. Use to discover text and image generation models from various providers.

List Thread Messages

Tool to list all messages in a conversation thread. Use after obtaining the thread ID to fetch its messages.

List Execution Traces

Tool to get execution traces for debugging and monitoring pipe runs. Use when you need to retrieve trace logs for a specific primitive.

Create Memory

Tool to create a new memory. Use when storing a new memory record in Langbase after confirming memory details.

Delete Memory

Tool to delete a specific memory. Use when you need to permanently remove a stored memory by its name.

List Memories

Tool to list all memory objects. Use when you need to fetch stored memories for context retrieval.

Create a new pipe

Tool to create a new pipe. Use after configuring pipe parameters. Returns an array of pipe objects, each including API key and URL.

List all pipes

Tool to list all pipes. Use after authentication to retrieve the complete list of pipes. Returns an array of pipe objects; callers must handle list iteration.

Update an existing pipe

Tool to update an existing pipe's configuration on Langbase. Use when modifying model settings, parameters, prompts, tools, or memory. The pipe must already exist.

Update Thread Metadata

Tool to update an existing thread's metadata. Use when you need to modify metadata fields for managing and organizing conversation threads.

Update Thread Message

Tool to update an existing message in a conversation thread. Use when you need to modify the content or metadata of a specific message.

Frequently asked questions

What can I automate with Langbase on Definable?

Anything Langbase exposes through its API. Common ai agents workflows on Definable include automate repetitive tasks, sync data with the rest of your stack, trigger on real-world events. Personas can call any of the 20 Langbase tools directly, then chain the result into another integration without you writing code.

How does Langbase authentication work?

Langbase uses API_KEY on Definable. You connect once from the integrations page, scoped to the permissions you choose, and from then on any persona that has the integration enabled can act on your behalf. Tokens are encrypted at rest and rotated automatically.

Is the Langbase integration included in my Definable plan?

Yes — every Definable plan, including Starter, includes access to all 20 Langbase tools. You only need a separate Langbase subscription if Langbase itself charges per seat or per API call.

Is using Langbase through Definable secure?

Every call from a persona to Langbase is logged with the user, persona, prompt, and response. Tokens never leave Definable's secrets vault, scopes are configurable per persona, and you can revoke access at any time from the integration page.

How do I get started with Langbase on Definable?

Sign up for Definable, open the integrations page, find Langbase, and connect via OAuth or API key. You can immediately attach Langbase to any persona and start running workflows. The free Starter plan includes 5,000 credits/month.

What Langbase actions does Definable expose?

Definable exposes all 20 Langbase actions as callable tools — including `Append Thread Messages`, `Check API Health`, `Split Content into Chunks`, plus 17 more. Each tool gets a typed parameter schema so personas know exactly how to call it.

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