# API.market Review A hosted API marketplace and MCP gateway giving developers and AI agents access to 590+ APIs through a single connection point. ## Editor's Score: 68/100 Capability scores 18 because the hosted MCP gateway exposing 3,650+ tools through a single endpoint is a genuine feature that directory competitor Qveris also offers but with a larger catalog (10,000+ APIs), and the 590+ API count is solid though not category-leading. Ease of use scores 17 because free trial units lower the onboarding bar, but managing five separate seller billing models through one dashboard adds real friction that a unified-pricing competitor avoids. Value scores 18 because the zero platform fee is genuinely buyer-friendly and free trial units are available across most APIs, though unpredictable per-seller costs make long-term budgeting difficult. Delivery scores 15 because the proprietary hosted gateway with no self-hosted option, uneven seller quality (ratings as low as 0.0 with one or two reviews), and the inability to verify the 99.9% uptime claim independently all reduce confidence that the platform consistently delivers what it advertises. ## Pros - Hosted MCP gateway exposes 3,650+ tools through a single endpoint, removing per-provider integration work for AI agent builders. - Free trial units are available on most APIs without a credit card, with some APIs offering as many as 5,000 free units to start. - 590+ APIs across diverse categories in one dashboard means developers can discover, compare, and switch providers without leaving the platform. ## Cons - Per-API billing from independent sellers makes total cost unpredictable: a project using five APIs means five separate pricing models to track, and there is no consolidated spend cap or budget alert at the platform level. - The MCP gateway is proprietary and hosted with no self-hosted option, so teams with data-residency or audit requirements cannot inspect or control the gateway layer. - Seller quality is uneven: ratings on the marketplace range from 0.0 to 5.0 with as few as one or two reviews on many APIs, giving buyers little signal on reliability before committing. ## Pricing Freemium. A free tier is available. - Platform Access (Free): Free - Per-API Paid Tiers (Seller-Set): Varies by API Pricing reflects what we saw at the time of review (2026-09). Confirm current pricing on the official site. Category: AI Coding & Dev Tools (https://aitoolseekers.com/category/ai-coding-dev-tools) Official site: https://api.market/ Last verified by a human: 2026-09-28 Reviewed by a human at AI Tool Seekers, a hand-reviewed AI tools directory. Every listed tool is verified by a person before publishing. Scores are editorial opinions from a fixed rubric (capability, ease of use, value, delivery on promise) and cannot be bought; there is no pay-to-rank. Directory: https://aitoolseekers.com This review: https://aitoolseekers.com/tools/apimarket Methodology: https://aitoolseekers.com/how-verification-works ## Verdict API.market is the right starting point for developers or AI agent builders who want to browse, trial, and integrate many third-party APIs without juggling separate accounts for each provider. Its hosted MCP gateway is a genuine differentiator for agent workflows, but the per-API pricing model means your actual monthly cost is nearly impossible to predict before you start building. Developers who need a single, well-documented API with predictable flat-rate pricing should go directly to that API's provider instead. Best for: AI agent builders and developers integrating multiple third-party APIs Not for: Teams needing predictable flat-rate billing or a single-vendor SLA ## Overview API.market is a marketplace where developers discover, subscribe to, and call third-party APIs, covering categories from image generation and face-swap tools to flight data, geocoding, and news parsing. The catalog lists 590+ APIs and AI models, with over 202 million API calls processed monthly across 17,500+ registered developers. That scale puts it in direct competition with RapidAPI as a general-purpose API hub, but API.market has made a specific bet on AI agent infrastructure that RapidAPI has not. The clearest differentiator is the hosted MCP (Model Context Protocol) gateway. Developers connect their AI agent to a single endpoint at api.market/api/mcp/gateway using Streamable HTTP with either OAuth or an API key, and the agent can then search the catalog, retrieve endpoint schemas, call APIs, check usage, and manage subscriptions without the developer writing separate integration code for each provider. The gateway exposes 3,650+ tools across the catalog's APIs, which is a meaningful head start for anyone building an agent that needs to reach real-world data or services. Pricing is decentralized by design. API.market does not charge a platform fee; each seller sets their own tiers, free trial units, and usage rates. The AeroDataBox aviation API, for instance, offers 400 free API units to start, while the Trueway Routing API gives 5,000 free units. This means onboarding is low-friction, but budgeting is genuinely difficult: a developer using five APIs from five different sellers is managing five separate billing relationships through one dashboard. The server itself is proprietary and hosted; the public integration files contain configuration and documentation only, not server source code. That is worth knowing before assuming you can self-host or audit the gateway layer. ## Who should use it Solo developers and small teams building AI agents or data-driven apps will get the most from API.market, specifically when their project requires stitching together several unrelated APIs: flight data plus geocoding plus image generation, for example. The MCP gateway removes the need to write and maintain separate client code for each provider, which is a real time saving for agent workflows where the agent itself needs to discover and call APIs dynamically. Developers who already know exactly which single API they need, and who want a direct vendor relationship with a clear SLA and flat monthly pricing, should skip the marketplace layer entirely and go to that provider directly. Teams with strict compliance or audit requirements should also note that the MCP gateway is proprietary and hosted, with no self-hosted option. For agent-to-API routing with a more transparent protocol layer, Qveris (also in this directory) offers a pay-as-you-go capability routing network connecting agents to 10,000+ APIs and may suit teams that want a single-protocol approach with clearer per-call cost visibility. ## FAQ Q: Does API.market charge a monthly platform fee? A: No. API.market does not charge a subscription fee for platform access. You pay only for the individual APIs you use, at rates set by each API's seller. Q: How does the MCP gateway work? A: You connect your AI agent to api.market/api/mcp/gateway using Streamable HTTP with either OAuth or an API key. The agent can then search the catalog, retrieve endpoint schemas, and make API calls across 3,650+ tools without separate integration code for each provider. An API.market account is required. Q: Can I try APIs before paying? A: Yes. Most APIs on the marketplace include free trial units. The amount varies by seller: Trueway Routing offers 5,000 free units, AeroDataBox offers 400, and FaceSwap APIs offer 100. Q: Is the MCP gateway open source or self-hostable? A: No. The gateway server is proprietary and hosted by API.market. Public integration files contain configuration and documentation only, not server source code. There is no self-hosted option. Q: How many APIs and developers are on the platform? A: As of the current homepage, API.market lists 590+ APIs and AI models, serves 17,500+ registered developers, and processes 202 million API calls per month. Q: Who sells APIs on the marketplace? A: Independent API providers list their own products through the Seller Console, setting their own pricing and trial terms. Top sellers listed on the homepage include MagicAPI, Capix AI, Trueway Labs, AeroDataBox, and AILabTools.