API.market vs Routebase: Which Is Better in 2026?

API.market is an API marketplace for developers and teams building software, automations and AI-agent workflows. It provides a place to discover APIs and use their capabilities, with a hosted Model Context Protocol gateway for agents that support remote MCP connections. The company is registered in the United States, is based in San Francisco and launched in April 2024.

For an agent workflow, the connection endpoint is https://api.market/api/mcp/gateway. Setup documentation is available at https://api.market/mcp. The gateway uses Streamable HTTP and requires an account with OAuth or API-key authentication. It is a hosted proprietary service; it is not offered as a public open-source server implementation. The website and the MCP connection endpoint serve different purposes: clients should connect to the gateway URL, while people can use the setup page to learn how to configure access.

The gateway exposes five tools. search_apis helps find relevant APIs in the catalog. get_api_tools provides information about the operations associated with a selected API. call_api invokes an operation. check_usage helps inspect usage, and manage_subscription handles subscription-related actions. This gives an agent a discovery-and-execution workflow without presenting every catalog operation as a separate tool at connection time.

A typical use starts with a developer defining the capability their application or agent needs. The agent can search for an API, inspect the available operations and required inputs, and then make an authenticated call where access is available. Developers should review the selected provider, its data requirements and its pricing before placing calls in a production workflow. Requests may send task data to the chosen API provider. Subscription changes and calls to paid operations should remain subject to the application owner’s approval and spending controls.

Pricing depends on the selected API. Free tiers and paid plans vary across providers; the marketplace should not be interpreted as unlimited free access to every API. API.market is relevant to developers and teams that want API discovery, access and usage information in a shared workflow, including teams connecting AI agents to external services. Product questions can be sent to hey@api.market.

Your API rarely lives in one place. It lives in a spec file, a documentation site, a set of mocks, a test suite and a monitoring tool, and every copy drifts on its own schedule until that drift turns into bugs. Routebase removes the drift by deriving all of those surfaces from one living OpenAPI spec, so a single publish reaches every one of them at once.

That spec is built in a first-class visual API designer rather than in a text editor. You create endpoints, request and response bodies, parameters, examples and reusable schema components through a real interface, so nobody on the team has to hand-edit YAML or JSON to change the contract. Existing APIs come in through OpenAPI import, and you can export the spec or a Postman collection whenever you need it elsewhere. You also work on specs the way you work on code, with branches, merge requests, review and breaking-change detection before anything ships.

From that one design, Routebase generates the rest of the lifecycle. Your documentation portal, your mock servers and your contract tests all follow the published spec, so frontend and backend can build in parallel from day one against mocks that actually match the contract.

Because the spec is the source, Routebase can also tell you what moved. It validates live responses against the contract and reports field-level diffs, so a missing field or a changed type surfaces before a consumer ever hits it. Security scanning, governance rules and style-guide enforcement keep every spec consistent as the team grows.

Every workspace also ships a built-in MCP server that covers the full feature set of the product. Agents in Visual Studio Code, Claude, Codex or Cursor design endpoints, run test suites and lint specs under the same permissions your team already has, so no glue code is needed. Workspaces run in the EU or the US, and every account starts free with a 14-day Pro trial and no credit card.

What problem it solves

Most teams keep the same API in several places at once, and each of those copies drifts on its own schedule. Documentation goes stale, mocks stop matching what the API really returns, and test suites keep passing against a contract nobody has kept. The people who feel it are the ones who own the API. Backend developers ship a change that never reached the docs, and frontend engineers build against a mock that lies. QA chase failures that are not real, while whoever is on call debugs a payload that no longer matches the spec. Routebase closes that gap by making one published spec the source for documentation, mocks, contract tests and monitors, so a change reaches all of them in a single publish.

Alternatives & competitors

Routebase is an alternative to Postman, SwaggerHub, Stoplight, Apidog and Swagger UI. Each of those covers a part of the lifecycle, so teams end up running a design tool next to a docs generator, a standalone mock server and a separate test runner. The drift between those copies is exactly what breaks in production, because no single tool sees all of them. Routebase covers design, documentation, mocking, contract testing and monitoring from one living spec, and the spec itself is built in a full visual designer instead of hand-edited YAML. It then validates live responses against that spec with field-level diffs. Every workspace also ships an MCP server, so agents work the same source as the team under existing permissions.