# 2s MCP Server

**Canonical:** https://apis.io/apis/2s-io/2s-mcp-server/  
**Provider:** 2s — https://apis.io/providers/2s-io/  
**Base URL:** https://2s.io/mcp  
**Documentation:** https://2s.io/learn/x402/mcp

2s MCP Server is one of 3 APIs that [2s](https://apis.io/providers/2s-io/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include MCP, Agent-Native, and x402. The published artifact set on APIs.io includes API documentation.

Remote Model Context Protocol server at https://2s.io/mcp (Streamable HTTP, POST only, protocol version 2025-06-18, serverInfo 2s.io 1.0.0). initialize and tools/list answer anonymously with 575 tools — one per REST operation, named by the spec's x-2s-id, each carrying a real inputSchema; resources/list and prompts/list are not implemented. Paid tool calls are settled through x402 by a hosted signer that takes the caller's EVM private key in an X-EVM-Private-Key header, which the provider's own docs recommend against in favour of the local stdio server, npx -y @2sio/mcp (npm @2sio/mcp 1.82.0), that keeps the key on the caller's machine. Both accept a trial mode. A SEP-1649 server card is published at /.well-known/mcp/server-card.json.

## Machine-readable artifacts (4)

- **MCPServer** — https://raw.githubusercontent.com/api-evangelist/2s-io/refs/heads/main/mcp/2s-io-mcp.yml
- **MCPServer** — https://2s.io/mcp
- **ToolCrosswalk** — https://raw.githubusercontent.com/api-evangelist/2s-io/refs/heads/main/mcp/2s-io-tool-crosswalk.yml
- **Documentation** — https://2s.io/learn/x402/mcp

## Other 2s APIs (2)

- [2s API](https://apis.io/apis/2s-io/2s-api/)
- [2s A2A Agent](https://apis.io/apis/2s-io/2s-a2a-agent/)

## Tags

MCP, Agent-Native, x402

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/2s-io/2s-mcp-server/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/2s-io/.