In-depth architectural comparison of the Mini App MCP and Microsoft SQL Server MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
Mini App MCP
Databases · Remote HTTP/SSE
Quality: 52/100 (Good) | Auth: No auth required
Microsoft SQL Server
Databases · Local stdio
Quality: 53/100 (Good) | Auth: No auth required
Verdict Summary: Choose Mini App MCP if you need specialized Databases tools running via a hosted cloud SSE transport. Choose Microsoft SQL Server if your workspace requires Databases integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.
Which MCP Server Should You Choose?
M
Choose Mini App MCP when:
You need dedicated capabilities in the Databases domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Returns the parsed schema (table name, field definitions) as JSON
create
Inserts a new row; validates the `data` object against the schema
get
Retrieves a single row by `id`. If `id` is shorter than 36 characters it is treated as a UUID prefix: zero matches return `NOT_FOUND`; two or more matches return `AMBIGUOUS_ID` with a candidate list. A full 36-character UUID always uses the exact-match path. Accepts an optional `fields` selector to…
list
Returns rows with optional `limit` / `offset` pagination. Accepts an optional `fields` selector to project the returned `data` objects to a named subset of schema fields.
update
Updates an existing row by `id`. If `id` is shorter than 36 characters it is treated as a UUID prefix (see `get` for resolution rules). Default mode is **merge** (RFC 7396): absent fields are preserved from the stored row, `null` values delete optional fields or raise a Validation error for require…
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
Mini App MCP is categorized under Databases and uses a remote streaming HTTP/SSE transport. In contrast, Microsoft SQL Server belongs to Databases using local stdio subprocess. Select Mini App MCP when you need capabilities focused on databases and Microsoft SQL Server when you require tools for databases.
Removes a row by `id`. If `id` is shorter than 36 characters it is treated as a UUID prefix (see `get` for resolution rules).
reload
Re-scan `MINI_APP_USER_DIR` / `MINI_APP_PROJECT_DIR` and atomically replace the table registry. Legacy `MINI_APP_SCHEMA` + `MINI_APP_DB` are re-applied if set. Returns `{ mounted, added, removed }`. Limitations: no file watcher (explicit invocation only); whole-registry replace (no per-table partia…
schema_create
Create a new `schema.yaml` under the specified `scope` (`project` or `user`) and register the table live. Pass `dry_run: true` to preview without writing. Fails with `SCHEMA_EXISTS` if the table already exists.
schema_update
Replace an existing table's `schema.yaml` with a new definition (full overwrite). Backs up the previous YAML and a SQLite snapshot to `_backup/` before writing. Pass `dry_run: true` to preview field changes without touching disk.
schema_delete
Remove a table's `schema.yaml` (moved to `_backup/`) and unregister it from the live registry. **Does not alter or drop the SQLite table** — DDL changes remain the operator's responsibility. Pass `dry_run: true` to preview.
schema_batch
Execute an array of `ops[]` atomically under a single SQLite SAVEPOINT. Any op failure rolls back all preceding ops, leaving YAML and DB untouched. All ops must target the same table. Returns per-op results or a `BATCH_ABORTED` error with the index of the failing op.
data_snapshot
Create a point-in-time SQLite snapshot of one or all mounted tables using the SQLite hot backup API. Snapshots are written to `<scope_root>/_snapshots/<table>.<unix_secs>.db`. Pass `table` and/or `scope` to limit the target set; omit both to snapshot all mounted tables. Pass `dry_run: true` to prev…
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Microsoft SQL Server Tools (7)
list_profiles
List configured connection profiles. Call first when picking a non-default profile.
get_server_properties
Get server properties and execution limits (timeouts, row caps, guardrails).
list_objects
List catalog metadata. `kind=catalog`: databases; `schema`: schemas; `relation`: tables/views; `routine`: procedures/functions. `catalog` omitted → active catalog (ignored for `kind=catalog`). `schema` omission depends on kind.
get_object
Get metadata for one relation or routine. Use `list_objects` to resolve names. Returns empty detail payloads if `includes` is null.
run_query
Execute read-only T-SQL SELECT; only SELECT allowed (no DML/DDL). Returns results as CSV in the `data` field (inline) or a snapshot resource URI when `snapshot=true`. Inline limit: 500 rows (hard ceiling 1000). Snapshot limit: 10 000 rows. Prefer `analyze_query` for plan tuning.
analyze_query
Analyze execution plan for a read-only SELECT. Returns compact JSON summary (cost, operators, cardinality, warnings, indexes, waits, stats). Fetch full XML from `plan_uri`; does not return result rows.
run_command
Execute write T-SQL (DDL/DML). Rejected unless the target `profile` sets `AllowWrite=true` (off by default). Caller manages transactions. Returns `rows_affected` (−1 for DDL) and server `messages`. Marked destructive; intended for human-supervised use.