API.market vs Zuplo

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.

Zuplo is an API management platform with API Gateway, AI Gateway, and MCP Gateway products. API protections include API keys, JWT, Basic Auth, mTLS, bot detection, rate limiting, and schema validation. OpenAPI supports documentation and cataloging, and every plan includes a hosted developer portal that can use a customer domain. The AI Gateway routes requests among OpenAI, Anthropic, Google, and Mistral, and offers semantic caching, prompt injection protection, secret masking, and spending budgets. MCP Gateway is included on every plan for authenticating, routing, and governing MCP servers. Documented logging integrations include AWS CloudWatch, Datadog, Dynatrace, New Relic, Google Cloud Logging, Loki, Splunk, Sumo Logic, and VMware Log Insight. Zuplo says its gateways deploy to more than 300 edge locations; self-hosted or dedicated deployment is available. GitHub GitOps is supported on Free and Builder, while Enterprise lists GitHub, Bitbucket, GitLab, and Azure DevOps. Free costs nothing and includes up to 100K monthly requests. Builder costs $25 a month, with additional requests charged at $100 per 100K.