Anthropic MCP
Model Context Protocol specification
The top alternatives to Orthogonal in the MCP Tooling space, compared on features, pricing, and what they're best at.
Updated March 27, 2026
Orthogonal is an API marketplace and payment layer for AI agents. Part of YC W2026, it was founded by Christian Pickett (ex-Coinbase payments, ex-Vercel billing) and Bera Sogut (ex-Google reCAPTCHA/Maps, ex-Amazon Robotics, 2x ACM ICPC World Finalist). Developers and agents get instant access to hundreds of paid APIs through a single MCP server or SDK, with no key management and pay-as-you-go pricing.
One platform for routing, observability, tracing, and evals across every LLM provider.
Composio
250+ pre-built tool integrations
Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 500+ models through one gateway.