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207 tools · 25 stacks

AI tools are all over the place. This is the full landscape — 207 tools across 17 categories, mapped and connected. Ready to narrow it down? Build your stack →

Team size

Budget

Use case

Stage

Cluster

Stack Layers
What are you building and how is it defined?
How do you write and ship code?
How does your AI think and act?
Which models and infrastructure power it?
How do you build, observe, and extend it?
These tools competes with
Fern
vs
Speakeasy

Choose Fern when…

  • •You want type-safe SDKs and docs from your API spec
  • •You need SDKs in TypeScript, Python, Go, and more
  • •You want a Stripe-quality SDK without the manual work

Choose Speakeasy when…

  • •You want auto-generated SDKs from your OpenAPI spec
  • •You're publishing a developer-facing API with multiple SDKs
  • •SDK quality and type safety across languages matter
Field
Fern
Speakeasy
Category
Specifications
Specifications
Type
OSS
SaaS
Free Tier
✓ Yes
✓ Yes
Plans
Managed: Custom
Growth: $250/mo
Stars
⭐ 3,000
—
Health
●75 — Active
●65 — Slowing
Trajectory
— not enough data
— not enough data
Synced
today
9 days ago

Fern

Takes an OpenAPI spec and generates hand-crafted-quality SDKs across TypeScript, Python, Go, Java, Ruby, C#, and PHP, plus integrated documentation sites. SDKs and docs stay in sync from a single source of truth. Used by Cohere, ElevenLabs, and Merge.

Speakeasy

Takes an OpenAPI spec and generates polished, type-safe client SDKs across multiple languages, Terraform providers, and MCP servers for AI agent integration. Handles pagination, retries, webhooks, and streaming out of the box. Increasingly positioning itself as the API platform for the agent era.

Fern Website ↗GitHub ↗
Speakeasy Website ↗GitHub ↗

Shared Connections (5)

Swagger / OpenAPIRedoclyStoplightStainlessOpenAPI Generator

Only Fern (2)

SpeakeasyMintlify

Only Speakeasy (3)

FernMCP SDK (TypeScript)MCP SDK (Python)
See full comparison in Explore →