sponge-mcp.yml
Sponge publishes official, hosted (remote) MCP servers for both the agent Wallet and the merchant Gateway. Wallet servers authenticate with an agent API key (sponge_live_...) for CLI clients, or OAuth 2.0 (PKCE, dynamic client registration) for connectors that support it. The Gateway server authenticates with sk_test_/sk_live_ secret keys or a dashboard session cookie.
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About MCP
The Model Context Protocol (MCP) is an open protocol Anthropic introduced for connecting LLM-based agents to external tools and data sources. Providers publish MCP servers that expose their API surface as structured, discoverable tools — an MCP-compatible client (Claude Desktop, Cursor, Cline, Continue, etc.) can connect to the server and call its tools without any per-provider integration code.
Browse every MCP server on the APIs.io network or compare with the broader Agent Skill surfaces of the same providers.