Sandwich

The platform for the sandwich generation — caring for aging parents while raising kids.

Sandwich helps families coordinate eldercare, organize what their parents need, and pay for it without burning out. We also expose our care directory and family workspace as agent-callable tools so AI assistants like Claude, Cursor, and ChatGPT can answer real questions about Medicare, Medicaid, long-term care insurance, and the cost of care in any U.S. state.

🌐 Marketing site: joinsandwich.com 👨‍👩‍👧 Family app: app.joinsandwich.com 🤖 Agent integration docs: app.joinsandwich.com/agents 📦 MCP Registry: com.joinsandwich/directory · com.joinsandwich/care-circle

What is the sandwich generation?

Adults caring for an aging parent and raising children at the same time. Roughly 1 in 4 Americans aged 40–59 are in this position (Pew, 2024). Sandwich is built around the 40-70 rule: when you turn 40 or your parents turn 70, it's time to start the conversation about Medicare, power of attorney, advance directives, and long-term-care plans.

We cover:

Legal — power of attorney, advance directives, guardianship, estate planning
Financial — Medicare and Medicaid, long-term care insurance, the 5-year Medicaid look-back, IRMAA, RMDs
Healthcare — home care, adult day, assisted living, memory care, nursing home, hospice
Cost projections — state-by-state, 1–30 year horizons, custom inflation assumptions, sourced from the CareScout 2025 Cost of Care Survey
Family logistics — shared calendars, medication tracking, caregiver coordination, secure messaging

For AI agents and developers

Sandwich exposes two MCP servers registered with the official Model Context Protocol Registry. Any MCP-capable agent — Claude Desktop, Claude Code, Cursor, custom agents — can call them.

`com.joinsandwich/directory` — public, no auth

Read-only research tools for the 840+ vetted resources and the cost calculator. Use this when a user asks about Medicare, Medicaid, nursing-home costs, or any eldercare planning topic.

Endpoint: https://www.joinsandwich.com/api/mcp Auth: none

Tool	What it returns
`search_care_resources`	Search 840+ channels, guides, reports, glossary terms.
`get_channel`	Fetch a specific resource collection by slug.
`calculate_long_term_care_cost`	Project total cost by U.S. state, care type, duration, inflation.

`com.joinsandwich/care-circle` — authenticated, per-user

Family workspace integration. Read CareEvents (appointments, meds, visits, notes), list loved ones, inspect tenant context. HIPAA in scope — Bearer API key required, per-key rate-limited, append-only audit log.

Endpoint: https://app.joinsandwich.com/api/mcp Auth: Bearer key from app.joinsandwich.com/settings/mcp-keys, or full OAuth 2.1 + PKCE at app.joinsandwich.com/.well-known/oauth-authorization-server.

Tool	What it returns
`ping`	Liveness + identity confirmation.
`get_user_profile`	Caller's uid, email, workspace.
`list_loved_ones`	Care recipients on the caller's workspace.
`list_care_events`	Recent care events from Sandwich Pipe.

Quick install (Claude Desktop)

// ~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "sandwich-directory": {
      "url": "https://www.joinsandwich.com/api/mcp"
    },
    "sandwich-care-circle": {
      "url": "https://app.joinsandwich.com/api/mcp",
      "headers": {
        "Authorization": "Bearer sk-sand-..."
      }
    }
  }
}

Restart Claude Desktop. Mint the Bearer key at /settings/mcp-keys after signing in.

Full docs at app.joinsandwich.com/agents.

Discovery surfaces

/.well-known/mcp/server.json — RFC-style manifest
/.well-known/oauth-authorization-server — RFC 8414
/.well-known/oauth-protected-resource — RFC 9728
/agents — human-readable connect guide
/agents.json — machine-readable manifest
/llms.txt — LLM index

Brand and press

Company: Terahertz, Inc. dba Sandwich
Press inquiries: hello@joinsandwich.com
Logo + brand assets: joinsandwich.com/press

If you're writing about the sandwich generation, eldercare cost inflation, the Medicaid look-back rule, or AI-assisted caregiving, we're happy to share data and quotes — reach out.

Related repositories

Repo	What's in it
`Terahertz-Inc/sandwich`	Public marketing site, content, MCP submission drafts

License and use

This README and the public marketing material are released under CC BY 4.0 — quote freely with attribution to joinsandwich.com.

The Sandwich MCP endpoints are subject to the Sandwich Terms of Service and Privacy Policy. Care Circle data access is governed by a Business Associate Agreement (BAA).

Contact

Web: joinsandwich.com
Email: hello@joinsandwich.com
Integrations: hello@joinsandwich.com (subject: "MCP / agent")

Built in the US 🇺🇸 for the 11 million Americans caring for an aging parent and a child at the same time.

Sandwich Care Circle