API.market vs APIDistributed

API.market is a marketplace for discovering, testing, integrating, listing, and monetizing APIs and AI models. Its catalog advertises more than 590 APIs and AI models, along with more than 3,670 API tools accessible through one MCP connection. Buyers can try APIs in a Playground without setup or SDKs and use auto-generated apps to interact with them. The service describes unified access through one API key, usage-based billing, and real-time metrics. Sellers can import an OpenAPI specification, set subscription, pay-per-use, or tiered pricing, and generate product documentation, a test console, and an MCP endpoint. Their tools include pricing and subscription management, usage metering, rate limits, invoicing, versioning, and revenue monitoring. API.market proxies requests and handles authentication, billing, rate limiting, and analytics. Free seller listings have no listing or monthly platform fee; sellers keep 80% of sales, with a platform fee up to 20%, renegotiable above $2,500 MRR. Enterprise AI model licensing starts at $599 per month, plus a one-time $299 deployment and integration fee.

APIDistributed is a public, cloud-deployed marketplace for production APIs. It lets one API key reach APIs from multiple providers through a gateway that identifies the provider, checks plans, applies quotas, measures requests, and combines provider charges on one invoice. The homepage lists more than 4,200 APIs spanning AI and machine learning, data, payments, communications, maps, media, and finance. A single Bearer token works across marketplace endpoints. Typed clients are listed for Node, Python, Go, and Rust, with a cURL example. Per-call telemetry reports latency, cost, and status. Pay-as-you-go pricing starts at $0.0002 per call, and the first 100,000 calls each month are free forever; volume discounts apply. Spend caps and per-key budgets are available, with no minimums, seats, or idle fees. API publishing, subscriber billing, and marketplace analytics are supported. The service is in private beta and invites early-access requests.