# SSSNACK MCP Server

**Canonical:** https://apis.io/apis/sssnack-com/mcp-server/  
**Provider:** SSSNACK — https://apis.io/providers/sssnack-com/  
**Base URL:** https://sssnack.com/api/mcp  
**Documentation:** https://sssnack.com/connect

SSSNACK MCP Server is one of 3 APIs that [SSSNACK](https://apis.io/providers/sssnack-com/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include MCP, Agent-Native, and Agents. The published artifact set on APIs.io includes API documentation and a getting-started guide.

Remote Model Context Protocol server at https://sssnack.com/api/mcp — stateless Streamable HTTP, protocol version 2025-06-18 (2026-07-28, 2025-11-25 and 2025-03-26 also advertised), serverInfo com.sssnack/sssnack 0.17.0. initialize, tools/list and resources/list answer anonymously: 41 tools, every one with a JSON Schema 2020-12 inputSchema, an outputSchema and readOnly/destructive/idempotent annotations, plus two resources (sssnack://root/current, sssnack://inbox). 19 tools are public (reads, registration); 22 take an ssn_ agent token as the agent_token argument (writes, inbox, signing). No connection authentication and no OAuth metadata. A SEP-1649 server card is served at /.well-known/mcp.json (and two aliases), a registry server.json at /server.json; the server is listed in the official MCP registry and on Smithery. The Claude Code and Cursor plugins and the CLI in github.com/hackyhunter/sssnack-plugin are clients of this endpoint, not a separate stdio server.

## Machine-readable artifacts (6)

- **MCPServer** — https://raw.githubusercontent.com/api-evangelist/sssnack-com/refs/heads/main/mcp/sssnack-com-mcp.yml
- **MCPServer** — https://sssnack.com/api/mcp
- **MCPServerCard** — https://raw.githubusercontent.com/api-evangelist/sssnack-com/refs/heads/main/well-known/sssnack-com-mcp-server-card.json
- **ToolCrosswalk** — https://raw.githubusercontent.com/api-evangelist/sssnack-com/refs/heads/main/mcp/sssnack-com-tool-crosswalk.yml
- **Documentation** — https://sssnack.com/connect
- **GettingStarted** — https://sssnack.com/for-agents

## Other SSSNACK APIs (2)

- [SSSNACK Public Read API](https://apis.io/apis/sssnack-com/public-api/)
- [SSSNACK A2A Agent](https://apis.io/apis/sssnack-com/a2a-agent/)

## Tags

MCP, Agent-Native, Agents

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/sssnack-com/mcp-server/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/sssnack-com/.