Langbase website screenshot

Langbase

Langbase is a serverless AI developer platform for building, deploying, and scaling AI agents and applications. Its composable primitives - Pipes (agents), Memory (managed RAG), Threads, Agent (one API over 100+ LLMs), Tools, Parser, Chunker, and Embed - are exposed through a single Bearer-authenticated REST API at api.langbase.com, with Server-Sent Events (SSE) streaming for generative endpoints.

Langbase publishes 8 APIs on the APIs.io network, including Agent API, Chunker API, Embed API, and 5 more. Tagged areas include Artificial Intelligence, Agents, RAG, LLM, and Serverless.

Langbase’s developer surface includes authentication, documentation, engineering blog, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub
37.5/100 thin ▬ flat Agent 20/100 agent aware Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0
AccessFreemiumSelf serve⚡ Free to try
8 APIs
Artificial IntelligenceAgentsRAGLLMServerless

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0
Composite quality — 37.5/100 · thin
Contract Quality 13.0 / 25
Developer Ergonomics 4.8 / 20
Access Clarity 7.9 / 20
Operational Transparency 4.4 / 13
Contract Governance 0.0 / 12
Discoverability 7.4 / 10
Agent readiness — 20/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Surface 0 / 5
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/langbase: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 8

Individual APIs this provider publishes, each with its own machine-readable definition.

Langbase Agent API

The Agent API from Langbase — 1 operation(s) for agent.

Langbase Chunker API

The Chunker API from Langbase — 1 operation(s) for chunker.

Langbase Embed API

The Embed API from Langbase — 1 operation(s) for embed.

Langbase Memory API

The Memory API from Langbase — 5 operation(s) for memory.

Langbase Parser API

The Parser API from Langbase — 1 operation(s) for parser.

Langbase Pipes API

The Pipes API from Langbase — 3 operation(s) for pipes.

Langbase Threads API

The Threads API from Langbase — 3 operation(s) for threads.

Langbase Tools API

The Tools API from Langbase — 2 operation(s) for tools.

Scroll for all 8

Open Collections 10

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Langbase Agent API

OPEN COLLECTION

Langbase Agent Chunker API

OPEN COLLECTION

Langbase Agent Embed API

OPEN COLLECTION

Langbase Agent Memory API

OPEN COLLECTION

Langbase Agent Parser API

OPEN COLLECTION

Langbase Agent Pipes API

OPEN COLLECTION

Langbase Agent Threads API

OPEN COLLECTION

Langbase Agent Tools API

OPEN COLLECTION

Langbase API

OPEN COLLECTION

Scroll for all 10

Pricing Plans 1

Published pricing tiers and plan structures.

Langbase Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Langbase Rate Limits

6 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Langbase Finops

FINOPS

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Langbase Authentication

http · 1 scheme

SECURITY

Langbase Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Langbase Vulnerability Disclosure

disclosure policy published

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Langbase Agentic Access

23 operations · 18 acting

23 operations · 18 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: langbase
url: https://raw.githubusercontent.com/api-evangelist/langbase/refs/heads/main/apis.yml
name: Langbase
kind: company
description: Langbase is a serverless AI developer platform for building, deploying, and scaling AI agents and applications.
  Its composable primitives - Pipes (agents), Memory (managed RAG), Threads, Agent (one API over 100+ LLMs), Tools, Parser,
  Chunker, and Embed - are exposed through a single Bearer-authenticated REST API at api.langbase.com, with Server-Sent Events
  (SSE) streaming for generative endpoints.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/langbase.png
tags:
- Artificial Intelligence
- Agents
- RAG
- LLM
- Serverless
tags_raw:
- AI
- Agents
- RAG
- LLM
- Serverless
created: '2026-07-01'
modified: '2026-07-01'
specificationVersion: '0.23'
apis:
- aid: langbase:langbase-agent-api
  name: Langbase Agent API
  description: The Agent API from Langbase — 1 operation(s) for agent.
  humanURL: https://langbase.com/docs/api-reference/pipe
  baseURL: https://api.langbase.com/v1
  tags:
  - Agents
  tags_raw:
  - Agent
  properties:
  - type: OpenAPI
    url: openapi/langbase-agent-api-openapi.yml
  - type: Documentation
    url: https://langbase.com/docs/pipe
  - type: APIReference
    url: https://langbase.com/docs/api-reference/pipe
  - type: Documentation
    url: https://langbase.com/docs/agent
  - type: APIReference
    url: https://langbase.com/docs/api-reference/agent
  - type: Documentation
    url: https://langbase.com/docs/memory
  - type: APIReference
    url: https://langbase.com/docs/api-reference/memory
  - type: Documentation
    url: https://langbase.com/docs/threads
  - type: APIReference
    url: https://langbase.com/docs/api-reference/threads
  - type: Documentation
    url: https://langbase.com/docs/tools
  - type: APIReference
    url: https://langbase.com/docs/api-reference/tools
  - type: Documentation
    url: https://langbase.com/docs/parser
  - type: APIReference
    url: https://langbase.com/docs/api-reference/parser
  - type: Documentation
    url: https://langbase.com/docs/chunker
  - type: APIReference
    url: https://langbase.com/docs/api-reference/chunker
  - type: Documentation
    url: https://langbase.com/docs/embed
  - type: APIReference
    url: https://langbase.com/docs/api-reference/embed
  - type: Documentation
    url: https://langbase.com/docs/workflows
- aid: langbase:langbase-chunker-api
  name: Langbase Chunker API
  description: The Chunker API from Langbase — 1 operation(s) for chunker.
  humanURL: https://langbase.com/docs/api-reference/pipe
  baseURL: https://api.langbase.com/v1
  tags:
  - Chunker
  properties:
  - type: OpenAPI
    url: openapi/langbase-chunker-api-openapi.yml
  - type: Documentation
    url: https://langbase.com/docs/pipe
  - type: APIReference
    url: https://langbase.com/docs/api-reference/pipe
  - type: Documentation
    url: https://langbase.com/docs/agent
  - type: APIReference
    url: https://langbase.com/docs/api-reference/agent
  - type: Documentation
    url: https://langbase.com/docs/memory
  - type: APIReference
    url: https://langbase.com/docs/api-reference/memory
  - type: Documentation
    url: https://langbase.com/docs/threads
  - type: APIReference
    url: https://langbase.com/docs/api-reference/threads
  - type: Documentation
    url: https://langbase.com/docs/tools
  - type: APIReference
    url: https://langbase.com/docs/api-reference/tools
  - type: Documentation
    url: https://langbase.com/docs/parser
  - type: APIReference
    url: https://langbase.com/docs/api-reference/parser
  - type: Documentation
    url: https://langbase.com/docs/chunker
  - type: APIReference
    url: https://langbase.com/docs/api-reference/chunker
  - type: Documentation
    url: https://langbase.com/docs/embed
  - type: APIReference
    url: https://langbase.com/docs/api-reference/embed
  - type: Documentation
    url: https://langbase.com/docs/workflows
- aid: langbase:langbase-embed-api
  name: Langbase Embed API
  description: The Embed API from Langbase — 1 operation(s) for embed.
  humanURL: https://langbase.com/docs/api-reference/pipe
  baseURL: https://api.langbase.com/v1
  tags:
  - Embed
  properties:
  - type: OpenAPI
    url: openapi/langbase-embed-api-openapi.yml
  - type: Documentation
    url: https://langbase.com/docs/pipe
  - type: APIReference
    url: https://langbase.com/docs/api-reference/pipe
  - type: Documentation
    url: https://langbase.com/docs/agent
  - type: APIReference
    url: https://langbase.com/docs/api-reference/agent
  - type: Documentation
    url: https://langbase.com/docs/memory
  - type: APIReference
    url: https://langbase.com/docs/api-reference/memory
  - type: Documentation
    url: https://langbase.com/docs/threads
  - type: APIReference
    url: https://langbase.com/docs/api-reference/threads
  - type: Documentation
    url: https://langbase.com/docs/tools
  - type: APIReference
    url: https://langbase.com/docs/api-reference/tools
  - type: Documentation
    url: https://langbase.com/docs/parser
  - type: APIReference
    url: https://langbase.com/docs/api-reference/parser
  - type: Documentation
    url: https://langbase.com/docs/chunker
  - type: APIReference
    url: https://langbase.com/docs/api-reference/chunker
  - type: Documentation
    url: https://langbase.com/docs/embed
  - type: APIReference
    url: https://langbase.com/docs/api-reference/embed
  - type: Documentation
    url: https://langbase.com/docs/workflows
- aid: langbase:langbase-memory-api
  name: Langbase Memory API
  description: The Memory API from Langbase — 5 operation(s) for memory.
  humanURL: https://langbase.com/docs/api-reference/pipe
  baseURL: https://api.langbase.com/v1
  tags:
  - Memory
  properties:
  - type: OpenAPI
    url: openapi/langbase-memory-api-openapi.yml
  - type: Documentation
    url: https://langbase.com/docs/pipe
  - type: APIReference
    url: https://langbase.com/docs/api-reference/pipe
  - type: Documentation
    url: https://langbase.com/docs/agent
  - type: APIReference
    url: https://langbase.com/docs/api-reference/agent
  - type: Documentation
    url: https://langbase.com/docs/memory
  - type: APIReference
    url: https://langbase.com/docs/api-reference/memory
  - type: Documentation
    url: https://langbase.com/docs/threads
  - type: APIReference
    url: https://langbase.com/docs/api-reference/threads
  - type: Documentation
    url: https://langbase.com/docs/tools
  - type: APIReference
    url: https://langbase.com/docs/api-reference/tools
  - type: Documentation
    url: https://langbase.com/docs/parser
  - type: APIReference
    url: https://langbase.com/docs/api-reference/parser
  - type: Documentation
    url: https://langbase.com/docs/chunker
  - type: APIReference
    url: https://langbase.com/docs/api-reference/chunker
  - type: Documentation
    url: https://langbase.com/docs/embed
  - type: APIReference
    url: https://langbase.com/docs/api-reference/embed
  - type: Documentation
    url: https://langbase.com/docs/workflows
- aid: langbase:langbase-parser-api
  name: Langbase Parser API
  description: The Parser API from Langbase — 1 operation(s) for parser.
  humanURL: https://langbase.com/docs/api-reference/pipe
  baseURL: https://api.langbase.com/v1
  tags:
  - Parser
  properties:
  - type: OpenAPI
    url: openapi/langbase-parser-api-openapi.yml
  - type: Documentation
    url: https://langbase.com/docs/pipe
  - type: APIReference
    url: https://langbase.com/docs/api-reference/pipe
  - type: Documentation
    url: https://langbase.com/docs/agent
  - type: APIReference
    url: https://langbase.com/docs/api-reference/agent
  - type: Documentation
    url: https://langbase.com/docs/memory
  - type: APIReference
    url: https://langbase.com/docs/api-reference/memory
  - type: Documentation
    url: https://langbase.com/docs/threads
  - type: APIReference
    url: https://langbase.com/docs/api-reference/threads
  - type: Documentation
    url: https://langbase.com/docs/tools
  - type: APIReference
    url: https://langbase.com/docs/api-reference/tools
  - type: Documentation
    url: https://langbase.com/docs/parser
  - type: APIReference
    url: https://langbase.com/docs/api-reference/parser
  - type: Documentation
    url: https://langbase.com/docs/chunker
  - type: APIReference
    url: https://langbase.com/docs/api-reference/chunker
  - type: Documentation
    url: https://langbase.com/docs/embed
  - type: APIReference
    url: https://langbase.com/docs/api-reference/embed
  - type: Documentation
    url: https://langbase.com/docs/workflows
- aid: langbase:langbase-pipes-api
  name: Langbase Pipes API
  description: The Pipes API from Langbase — 3 operation(s) for pipes.
  humanURL: https://langbase.com/docs/api-reference/pipe
  baseURL: https://api.langbase.com/v1
  tags:
  - Pipes
  properties:
  - type: OpenAPI
    url: openapi/langbase-pipes-api-openapi.yml
  - type: Documentation
    url: https://langbase.com/docs/pipe
  - type: APIReference
    url: https://langbase.com/docs/api-reference/pipe
  - type: Documentation
    url: https://langbase.com/docs/agent
  - type: APIReference
    url: https://langbase.com/docs/api-reference/agent
  - type: Documentation
    url: https://langbase.com/docs/memory
  - type: APIReference
    url: https://langbase.com/docs/api-reference/memory
  - type: Documentation
    url: https://langbase.com/docs/threads
  - type: APIReference
    url: https://langbase.com/docs/api-reference/threads
  - type: Documentation
    url: https://langbase.com/docs/tools
  - type: APIReference
    url: https://langbase.com/docs/api-reference/tools
  - type: Documentation
    url: https://langbase.com/docs/parser
  - type: APIReference
    url: https://langbase.com/docs/api-reference/parser
  - type: Documentation
    url: https://langbase.com/docs/chunker
  - type: APIReference
    url: https://langbase.com/docs/api-reference/chunker
  - type: Documentation
    url: https://langbase.com/docs/embed
  - type: APIReference
    url: https://langbase.com/docs/api-reference/embed
  - type: Documentation
    url: https://langbase.com/docs/workflows
- aid: langbase:langbase-threads-api
  name: Langbase Threads API
  description: The Threads API from Langbase — 3 operation(s) for threads.
  humanURL: https://langbase.com/docs/api-reference/pipe
  baseURL: https://api.langbase.com/v1
  tags:
  - Threads
  properties:
  - type: OpenAPI
    url: openapi/langbase-threads-api-openapi.yml
  - type: Documentation
    url: https://langbase.com/docs/pipe
  - type: APIReference
    url: https://langbase.com/docs/api-reference/pipe
  - type: Documentation
    url: https://langbase.com/docs/agent
  - type: APIReference
    url: https://langbase.com/docs/api-reference/agent
  - type: Documentation
    url: https://langbase.com/docs/memory
  - type: APIReference
    url: https://langbase.com/docs/api-reference/memory
  - type: Documentation
    url: https://langbase.com/docs/threads
  - type: APIReference
    url: https://langbase.com/docs/api-reference/threads
  - type: Documentation
    url: https://langbase.com/docs/tools
  - type: APIReference
    url: https://langbase.com/docs/api-reference/tools
  - type: Documentation
    url: https://langbase.com/docs/parser
  - type: APIReference
    url: https://langbase.com/docs/api-reference/parser
  - type: Documentation
    url: https://langbase.com/docs/chunker
  - type: APIReference
    url: https://langbase.com/docs/api-reference/chunker
  - type: Documentation
    url: https://langbase.com/docs/embed
  - type: APIReference
    url: https://langbase.com/docs/api-reference/embed
  - type: Documentation
    url: https://langbase.com/docs/workflows
- aid: langbase:langbase-tools-api
  name: Langbase Tools API
  description: The Tools API from Langbase — 2 operation(s) for tools.
  humanURL: https://langbase.com/docs/api-reference/pipe
  baseURL: https://api.langbase.com/v1
  tags:
  - Tools
  properties:
  - type: OpenAPI
    url: openapi/langbase-tools-api-openapi.yml
  - type: Documentation
    url: https://langbase.com/docs/pipe
  - type: APIReference
    url: https://langbase.com/docs/api-reference/pipe
  - type: Documentation
    url: https://langbase.com/docs/agent
  - type: APIReference
    url: https://langbase.com/docs/api-reference/agent
  - type: Documentation
    url: https://langbase.com/docs/memory
  - type: APIReference
    url: https://langbase.com/docs/api-reference/memory
  - type: Documentation
    url: https://langbase.com/docs/threads
  - type: APIReference
    url: https://langbase.com/docs/api-reference/threads
  - type: Documentation
    url: https://langbase.com/docs/tools
  - type: APIReference
    url: https://langbase.com/docs/api-reference/tools
  - type: Documentation
    url: https://langbase.com/docs/parser
  - type: APIReference
    url: https://langbase.com/docs/api-reference/parser
  - type: Documentation
    url: https://langbase.com/docs/chunker
  - type: APIReference
    url: https://langbase.com/docs/api-reference/chunker
  - type: Documentation
    url: https://langbase.com/docs/embed
  - type: APIReference
    url: https://langbase.com/docs/api-reference/embed
  - type: Documentation
    url: https://langbase.com/docs/workflows
common:
- type: AgenticAccess
  url: agentic-access/langbase-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/langbase-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/langbase-domain-security.yml
- type: Authentication
  url: authentication/langbase-authentication.yml
- type: GitHubOrganization
  url: https://github.com/LangbaseInc
- type: LinkedIn
  url: https://www.linkedin.com/company/langbase
- type: Website
  url: https://langbase.com/
- type: Documentation
  url: https://langbase.com/docs
- type: Plans
  url: plans/langbase-plans-pricing.yml
- type: RateLimits
  url: rate-limits/langbase-rate-limits.yml
- type: FinOps
  url: finops/langbase-finops.yml
- url: https://langbase.com/blog
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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