Best AI Developer API Platforms of 2026

SiliconFlow

siliconflow.com

#1

Developer platform serving 200+ optimized LLMs via APIs; high traffic.

BoltAI

boltai.com

#2

Native macOS app that unifies 300+ AI models in one private workspace with agents, MCP tools, and one-time licensing.

LLM Gateway

llmgateway.io

#3

Unified API and gateway routing requests across 200+ models from 40+ providers, with cost tracking and a free BYOK tier.

Defapi

defapi.org

#4

Unified API that routes requests across many vendors' AI models with pay-as-you-go credits, aimed at developers and businesses.

TextSynth

textsynth.com

#5

Developer-focused API and playground giving low-cost access to open language, image, and speech models like Llama and Whisper.

LLM Labs

fprime.ai

#7

LLM Labs helps developers compare language models side-by-side for informed decisions.

AnyAPI

anyapi.ai

#8

One API and SDK to reach 400+ AI models across providers, with routing, RAG and agents and no vendor lock-in.

Claient.io

claient.io

#9

Platform for connecting clients to LLMs with zero backend and enhanced security.

CodingPlanX AI

codingplanx.ai

#10

Access over 600 AI models (Claude, GPT, Gemini, DeepSeek) using a single OpenAI-compatible API key. The tool intelligently routes your requests to reduce costs and works natively with Cursor, Cline, and Claude Code

Zyntent

#11

Zyntent detects purchase intent in LLM conversations and matches contextual native ads via a single SDK compatible with OpenAI, Anthropic, Gemini, and custom models.

Amazon Bedrock

example.com

#12

Amazon (AWS) Bedrock is a fully managed service that provides access to a variety of foundation models from leading AI providers, including Amazon, along with tools to build and scale generative AI applications.

LLM as a Service

llmasaservice.io

#14

LLM as a Service is a managed platform for companies to deliver robust LLM features in their software. Multiple LLM vendor failover, caching, and token budgets.