Providers

A provider is a publisher that offers one or more tools through xpay✦ Tools. Each provider has its own MCP endpoint.

What is a Provider?

Providers register their MCP servers on the platform. xpay wraps each server with:

Pay-per-call billing — users pay per tool invocation
API key authentication — one key works across all providers
Usage tracking — billing receipts on every call

Connecting to a Provider

Every provider gets a dedicated endpoint:


https://{provider-slug}.mcp.xpay.sh/mcp?key=YOUR_API_KEY

For example:

Firecrawl: https://firecrawl.mcp.xpay.sh/mcp?key=YOUR_API_KEY
Hunter: https://hunter.mcp.xpay.sh/mcp?key=YOUR_API_KEY
Exa: https://exa.mcp.xpay.sh/mcp?key=YOUR_API_KEY

When you connect to a provider endpoint, you get that provider’s native tools directly — no meta-tools, no indirection.

Browse Providers

See all available providers at xpay.tools/explore .

Each provider page shows:

Description and website
Full list of tools with descriptions and pricing
Connection configs for every supported client
Total usage statistics

Provider vs Master Server

Feature	Provider endpoint	Master server
Tools exposed	Provider’s native tools	4 meta-tools
Discovery	Automatic (tools/list)	Via `xpay_discover`
Execution	Direct tool calls	Via `xpay_run`
Best for	Focused use of one service	Dynamic multi-provider access

Recommendation: Use provider endpoints when you know which tools you need. Use the master server when you want your agent to discover and choose tools dynamically.