AI for model APIs and gateways

Orthogonal

Unified API platform for AI agents to discover, call, and pay for 40+ third-party services through one SDK, REST API, or MCP integration.

Free planFrom $10

AgentRouter

API router for AI agents that provides a unified wallet, API routing, and payment handling across supported rails (x402, MPP, Tempo).

Free planFrom $0.005/seat

Bifrost Edge by Maxim AI

Edge deployment variant of Bifrost.

Free planFrom $29/seat/monthAlso from Maxim AI: Bifrost, Bifrost Enterprise

LLM Token Factory by 6Estates Pte Ltd

Unified enterprise AI inference and token platform with OpenAI-compatible API integration, token usage visibility, enterprise governance, and private deployment support.

Free plan

AI21 Studio by AI21 Labs

Platform for building with AI21's foundation models, offering access via API and SDK with usage-based pricing.

Free trial

Enterprise-Level APIs by Aiera

Enterprise APIs and Model Context Protocol integrations delivering permissioned financial content with connector libraries for Anthropic, OpenAI, and Microsoft Azure…

Also from Aiera: Language Model Enrichment Services

Airia AI Platform by Airia

One platform bringing orchestration, security, and governance into a single execution layer, so every team operates from the same source of truth.

Also from Airia: Orchestration

Amazon Bedrock by Amazon Web Services

End-to-end platform for building generative AI applications and agents.

Free plan

Claude Platform (API) by Anthropic

Developer API platform for building AI-powered applications using Claude models.

Apex by Arya AI

AI API Library providing plug-and-play AI APIs to automate any workflow with pre-trained models.

Free trialAlso from Arya AI: Nexus

Ask Sage

Model-agnostic generative AI platform with multi-modal support supporting 150+ models, zero-trust label-based security, and deployment across SaaS, cloud, on-premise…

LLM Gateway by AssemblyAI

One OpenAI-compatible API for every frontier model with automatic fallbacks, zero markup, and zero data retention.

Free plan