How to check available data sources via Anything Graph MCP in 2 minutes

What this walkthrough covers

Enterprise teams store data everywhere — relational warehouses, spreadsheets, SaaS tools like Notion and Salesforce — and each silo speaks a different language. Before an agent can answer a business question, it needs to know what exists and how it connects. AnythingGraph solves that with a thin reasoning layer: one MCP server (anythinggraph-thin on port 3334) that lists profile sources, introspects live schema read-only, and maps silos into governed playbooks — no ETL, no data movement.

In this session we connected Cursor, asked what sources are available, inspected a Notion payroll database, and designed a federated Postgres + Notion semantic layer ending in sales-compensation-notion-access.

1. Turn 1 — List configured sources and introspect what is ready
2. Turn 2 — Introspect a Notion Payroll database by database ID
3. Turn 3 — Suggest a Postgres + Notion semantic layer playbook
4. Turn 4 — Create and save sales-compensation-notion-access

Turn 1 — List data sources

payroll_csv introspection

• File: payroll.csv (3 rows)
• Columns: payroll_id, user, full_name, pay_period, pay_date, gross_pay, currency

Summary

• Ready to query: warehouse_pg and payroll_csv
• Registered but needs setup: salesforce_main, notion_main

Turn 2 — Inspect Notion database

This mirrors the local payroll_csv structure. A binding crm-payroll-access.notion already exists but the playbook still routes payroll to CSV by default.

Turn 3 — Suggest a semantic layer playbook

Semantic model

flowchart LR
  subgraph Postgres["warehouse_pg"]
    U[users]
    A[accounts]
    U -->|owner_user_id| A
  end
  subgraph Notion["notion_main — Payroll DB"]
    P[Payroll pages]
  end
  subgraph Playbook["crm-payroll-notion-access"]
    CU[crm_user]
    CA[crm_account]
    CP[crm_payroll_record]
    CU -->|owns_account| CA
    CU -->|user_has_payroll| CP
  end
  U -.-> CU
  A -.-> CA
  P -.-> CP
              

{
  "id": "crm-payroll-notion-access",
  "name": "CRM + Notion payroll access",
  "entities": {
    "crm_user": { "id": "user_id", "fields": ["full_name"] },
    "crm_account": { "id": "account_name", "fields": ["industry"] },
    "crm_payroll_record": {
      "id": "payroll_id",
      "fields": ["user_id", "pay_period", "gross_pay", "currency", "pay_date"]
    }
  },
  "relationships": {
    "owns_account": { "from": "crm_user", "to": "crm_account" },
    "user_has_payroll": { "from": "crm_user", "to": "crm_payroll_record" }
  },
  "sources": {
    "crm_user": "postgres",
    "crm_account": "postgres",
    "crm_payroll_record": "notion"
  }
}

Turn 4 — Create the playbook

{
  "playbook_id": "sales-compensation-notion-access",
  "entity": "crm_user",
  "by_name": "Alex Anderson",
  "count_relationship": "owns_account"
}

MCP tool checklist

Notion introspection: Documentation · Claude payroll tutorial