api marketplace
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An API marketplace is a catalog where developers find, compare and connect to third-party APIs from one place. APIbase.pro is an MCP gateway that gives AI agents access to a large and growing catalog of tools across many categories. Developers use it to let an agent call external services without wiring up each provider by hand.
What an API marketplace does for developers
An API marketplace lists many third-party APIs in one searchable index. The developer browses by category, reads the documentation, checks the authentication model and signs up once. Each listing describes the endpoints, the request format and the response shape.
Marketplaces reduce the search cost. Without one, a developer finds a provider through a web search, reads separate docs for each service and manages a separate key for each account.
How MCP tools change the marketplace model
The Model Context Protocol (MCP) defines a standard way for an AI agent to discover and call external tools. An MCP gateway exposes many provider APIs behind one connection. The agent lists the available tools, reads their input schemas and calls the ones it needs.
The developer configures one MCP server in the agent host. The tool descriptions tell the model what each tool does, so the agent picks the right call without custom glue code.
What to check before you pick an API marketplace
- Catalog breadth: confirm the providers you need are listed, and check how the listings are maintained.
- Authentication: check whether the gateway holds provider keys or whether you supply your own.
- Protocol support: check for MCP compatibility if your agent host uses it.
- Pricing: compare the plan limits and the per-call costs against your expected volume.
Read each provider's own terms as well. A marketplace listing does not change the provider's rate limits, data handling or acceptable use rules.
How APIbase.pro fits in
APIbase.pro is an MCP gateway with a live tool catalog. A developer connects an MCP-compatible agent to the gateway and calls tools from many providers through one endpoint. The catalog covers hundreds of providers across many categories.
Pricing is published on the plans page. Plans range from 0 to 29.99 per month. Check the current plan details before you commit. The catalog and the plan limits change over time.
Caveats and limits
A marketplace does not remove the work of reading provider documentation. Each tool has its own input rules, error codes and rate limits. Test each tool with a small request before you give an agent write access or let it run unattended.
No independent benchmark of gateway latency was used for this page. Measure latency on your own workload before you rely on it in production.
Live pricing — developer
Data source: live tool catalog snapshot, fetched 2026-10-26.
Chart data as a table
| Tool | Price per call | Cache-hit price |
|---|---|---|
| Usage Time Series | $0.0 | $0.0 |
| Per-Tool Usage Breakdown | $0.0 | $0.0 |
| Usage Summary | $0.0 | $0.0 |
| Discover Tools | $0.0 | $0.0 |
| Batch Tool Calls | $0.0 | $0.0 |
| Tool Quality Metrics | $0.0 | $0.0 |
| Tool Quality Rankings | $0.0 | $0.0 |
| List Programming Languages | $0.001 | $0.0001 |
| Check CVE ID Reservation Status | $0.001 | $0.0001 |
| Security Advisories (deps.dev) | $0.001 | $0.0001 |
| Dependency Tree (deps.dev) | $0.001 | $0.0001 |
| Package Info (deps.dev) | $0.001 | $0.0001 |
| Tool | Provider | Price/call | Cache-hit |
|---|---|---|---|
| Usage Time Series | account | $0 | $0 |
| Per-Tool Usage Breakdown | account | $0 | $0 |
| Usage Summary | account | $0 | $0 |
| Discover Tools | apibase | $0 | $0 |
| Batch Tool Calls | platform | $0 | $0 |
| Tool Quality Metrics | platform | $0 | $0 |
| Tool Quality Rankings | platform | $0 | $0 |
| List Programming Languages | judge0 | $0.001 | $0.0001 |
| Check CVE ID Reservation Status | cve-mitre | $0.001 | $0.0001 |
| Security Advisories (deps.dev) | depsdev | $0.001 | $0.0001 |
| Dependency Tree (deps.dev) | depsdev | $0.001 | $0.0001 |
| Package Info (deps.dev) | depsdev | $0.001 | $0.0001 |
Connect via MCP
Data source: gateway design, no measured values.
$ curl -X POST https://apibase.pro/api/v1/tools/account.timeseries/call \
-H "Content-Type: application/json" -d '{"params": {}}'FAQ
What is an API marketplace?
An API marketplace is a catalog where developers find, compare and connect to third-party APIs. Each listing describes the endpoints, the authentication method and the pricing. The developer signs up with the provider or through the marketplace.
How is an MCP gateway different from a traditional API marketplace?
A traditional marketplace lists APIs for developers to integrate by hand. An MCP gateway exposes provider tools to an AI agent through the Model Context Protocol. The agent discovers the tools and calls them without custom integration code for each provider.
How much does APIbase.pro cost?
Plans range from 0 to 29.99 per month. Check the plans page for the current limits, because pricing can change.
Do I need an API key for each provider?
It depends on the tool. Check the authentication section of each tool listing before you connect the agent. Some tools need a provider key, and others run through the gateway.
Which agent hosts can use an MCP marketplace?
Any agent host that supports the Model Context Protocol can connect to an MCP gateway. Check your host's documentation for how to add an MCP server.
Recommended next step
- STEP 1/2 Connect your MCP client
- STEP 2/2 Browse the full catalog
Related guides
Published: 2026-10-26Source: live apibase.pro catalog snapshot