API.market
A hosted API marketplace and MCP gateway giving developers and AI agents access to 590+ APIs through a single connection point.
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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.
What is API.market?
API.market is a hosted API marketplace that lets developers discover, subscribe to, and call APIs across categories including image generation, video, maps, aviation data, face-swap tools, text analysis, and more. The platform lists 590+ APIs and AI models from independent sellers, with each seller setting their own pricing, free trial units, and usage limits.
Beyond the marketplace, API.market operates a hosted MCP (Model Context Protocol) gateway that gives AI agents a single connection point to over 3,650 tools drawn from the catalog. Agents connect via Streamable HTTP using OAuth or an API key, then search the catalog, retrieve schemas, make API calls, and manage subscriptions programmatically. An API.market account is required to use either the marketplace or the gateway.
How we scored API.market
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 and cons
What we liked
- 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.
Where it falls short
- 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.
Key features
API.market pricing
API.market itself does not charge a platform subscription fee. Each API on the marketplace sets its own pricing: many offer free trial units (for example, 100 to 5,000 free API units depending on the API), with paid usage charged per call or via subscription tiers set by the individual API seller. The platform operates on a freemium model where free trials are available per API, but ongoing costs vary entirely by which APIs you use and how heavily.
| Plan | Price | Who it is for |
|---|---|---|
| Platform Access (Free) | Free | Account creation, catalog browsing, and access to free trial units offered by individual API sellers. No platform subscription fee is charged by API.market itself. |
| Per-API Paid Tiers (Seller-Set) | Varies by API | Each API seller sets their own paid tiers. Examples from the live catalog: AeroDataBox offers 400 free units then paid tiers; Trueway Routing offers 5,000 free units then paid tiers; FaceSwap APIs offer 100 free units then paid tiers. Costs are charged per API call or via seller-defined subscription plans. |
Pricing reflects what we saw at time of review (2026-09). Always confirm current pricing on the tool's own site.
Who should use API.market?
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.
Skip it if: Teams needing predictable flat-rate billing or a single-vendor SLA
API.market alternatives
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Frequently asked questions
Does API.market charge a monthly platform fee?+
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.
How does the MCP gateway work?+
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.
Can I try APIs before paying?+
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.
Is the MCP gateway open source or self-hostable?+
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.
How many APIs and developers are on the platform?+
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.
Who sells APIs on the marketplace?+
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.
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