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 AI, Agents, RAG, LLM, and Serverless.

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

🌐 Visit website 📡 Source on GitHub
38.8/100 thin ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1
AccessFreemiumSelf serve⚡ Free to try
8 APIs
AIAgentsRAGLLMServerless

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1
Composite quality — 38.8/100 · thin
Contract Quality 14.4 / 25
Developer Ergonomics 4.3 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 7.4 / 10
Agent readiness — 31/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
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
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 1

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

Langbase API

OPEN COLLECTION

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:
- AI
- Agents
- RAG
- LLM
- Serverless
created: '2026-07-01'
modified: '2026-07-01'
specificationVersion: '0.19'
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:
  - 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