API.market

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, plus more than 3,670 API tools accessible through one MCP connection. Buyers can test 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. Seller tools cover pricing, subscriptions, uptime, revenue, usage metering, invoicing, product versions, rate limits, and quotas. API.market proxies requests and handles authentication, billing, rate limiting, and analytics. The free seller listing has no listing or monthly platform fee; sellers keep 80% of each sale, 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. Enterprise licenses prohibit resale and limit use to the purchasing organization.

API.market combines buyer discovery and testing with seller publishing and monetization tools. Sellers should note the platform fee, while enterprise buyers should account for the deployment fee and no-resale restriction.

API.market suits API buyers and sellers, developers, businesses, and startups. Enterprise buyers can request custom integrations and dedicated support.

API.market is a marketplace and gateway for finding, trying, and selling APIs and AI models. It is best for developers and businesses that want shared access to multiple APIs, and for sellers seeking publishing and monetization tools. Its broad catalog and seller controls are balanced by a platform fee and meaningful data-handling considerations.

Overview

The marketplace spans more than 590 APIs and AI models in categories such as AI, image generation, fintech, security, travel, and developer tools; it also advertises 3,670+ API tools through one MCP connection. Buyers can try APIs in a Playground without setting up SDKs or use auto-generated apps. One API key, usage-based billing, and real-time metrics offer a simpler way to work across listings, while the proxy makes API.market an intermediary in each request.

That intermediary role has privacy implications. API.market says it logs full request and response data, including headers and bodies, for billing, usage tracking, debugging, abuse prevention, and service improvement. Proxy request and response bodies are typically purged after 30 days, and in-house API media after 48 hours; third-party providers may see requests and follow their own retention policies. MagicAPI Inc says it does not sell, rent, or trade users’ personal information.

Key features

The gateway handles authentication, billing, rate limiting, and analytics through a unified interface. For buyers juggling multiple providers, that consolidation can reduce integration overhead; it also means evaluating the proxy and its data handling is part of choosing the service.

Sellers can import an OpenAPI specification, set subscription, pay-per-use, or tiered pricing, and receive generated documentation, a test console, and an MCP endpoint for each product. Their dashboard covers uptime, subscriptions, and revenue, while seller tools include autoscaling, API key rotation, rate limits and quotas, usage metering, invoicing, global payouts, versioning, and customer support tickets. This is a substantial publishing toolkit, though sellers give up part of each sale to the platform.

MCP connection instructions cover Claude, ChatGPT, Codex, Cursor, VS Code, and Claude Code, with OAuth or API-key authentication. Most APIs offer free trials, but whether one is available depends on the individual listing.

Pricing

API seller listing: free. There is no listing or monthly platform fee, and sellers can publish as many products as they like. Sellers keep 80% of each sale; the platform fee is up to 20%, with renegotiation possible above $2,500 MRR. The free entry point removes fixed publishing costs, but the revenue share matters for sellers with meaningful sales.

Enterprise AI model licensing: $599 a month, starting at $599 per month, plus a one-time $299 deployment and integration fee. It includes unlimited usage during the launch period and self-hosting in the customer’s cloud or data center. The license bars resale and limits use to the purchasing organization, so it suits internal enterprise deployment rather than a business intending to redistribute models. Enterprise deployments advertise a 99.9% uptime SLA.

API.market is freemium and offers a free plan; individual API trials depend on each listing. Enterprise buyers can request custom integrations and dedicated support. The enterprise usage terms are a significant constraint, and the launch-period usage allowance should not be mistaken for an unrestricted resale license.

Platforms

API.market supports API, web, and self-hosted use. Its enterprise offering can run AI models in a customer’s cloud or data center, giving organizations a deployment option beyond a hosted marketplace workflow.

Who it's for

API buyers, developers, businesses, and startups can use the marketplace to discover and test APIs across multiple categories. It is especially relevant when a shared key, billing, and metrics are more useful than handling each listing separately. Sellers benefit from generated product materials and built-in billing and analytics. Organizations needing model deployment in their own environment may consider enterprise licensing, provided the internal-use-only license fits.

Pros and cons

• Pros: A catalog of 590+ APIs and AI models, plus 3,670+ API tools via MCP, gives buyers a broad discovery point.
• Pros: Playground testing, auto-generated apps, and a unified key and billing can simplify evaluation and access across listings.
• Pros: Sellers get generated docs and test tooling, flexible pricing, and operational features ranging from quotas to invoicing and payouts.
• Cons: Sellers retain 80% of each sale under the standard arrangement, so the up-to-20% platform fee can weigh on revenue.
• Cons: Full request and response logging, plus third-party provider visibility and retention policies, may make the proxy a poor fit for sensitive traffic.
• Cons: Enterprise model licenses prohibit resale and restrict usage to the purchasing organization, limiting commercial redistribution.

Alternatives

For a broader comparison, see API Marketplace Software. Choose Datovu instead if its free tier’s defined caps—one published API, 150 actions per month, and 1,000 API requests per month—fit a smaller publishing need. Kong Gateway is an alternative for teams seeking a gateway with a 30-day trial, no Gateway limits during that trial, and 30 days of analytics retention. Pick api0.app when a small marketplace with up to two live endpoints and 10,000 monthly requests is sufficient.

APILayer Marketplace may suit buyers who want a 100-request monthly free plan or a $19.99 monthly Starter Plan. ApyHub Readability Scores Documents API is the more focused option for readability scoring, with a free 3,000-atoms-per-month tier and a $16.00 monthly Pro plan. FabriXAPI is worth considering for sellers whose needs align with its free tier’s published plan, volume, and subscription caps.

Gravitee API Gateway offers an Apache 2.0 community edition for teams looking for an open-source gateway. Moesif is another freemium API option, with a 14-day trial that automatically transitions to its free plan.

Verdict

API.market is a strong fit for developers and businesses that want to discover, evaluate, and access many APIs through one marketplace, and for sellers who value generated publishing tools and integrated monetization. The catalog and unified gateway are the main reasons to choose it. Sellers should account for the platform’s share of revenue, while buyers routing sensitive data or enterprises seeking resale rights should look elsewhere.