WolframAlpha vs IRS SOI (income by ZIP)
WolframAlpha is an MCP server published by SecretiveShell. Marketplaces we read that list it: 1 (Docker MCP Catalog). IRS SOI (income by ZIP) is an MCP server published by mcpwright. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-14. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  WolframAlpha |  IRS SOI (income by ZIP) |
|---|---|---|
| Docker MCP Catalog | Listed Version: sha256:4cd89d002d55 Forks (GitHub): 21 Pulls (Docker Hub): 47 521 Stars (Docker Hub): 6 Stars (GitHub): 75 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.1.2 Downloads/month (PyPI): 91 Downloads/week (PyPI): 21 Forks (GitHub): 0 Stars (GitHub): 0 Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | WolframAlpha | IRS SOI (income by ZIP) |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 75 (better) | 0 (worse) |
| Pulls (Docker Hub) (differs) | 47 521 | No figure on Docker Hub |
| Forks (GitHub) (differs) | 21 (better) | 0 (worse) |
| Last release | Not published | Not published |
| Where it runs (differs) | On your machine (mcp/wolfram-alpha) | On your machine (mcpwright-soi) |
| Transport | stdio | stdio |
| Tools it declares (differs) | 1 | Not published |
| Environment variables it asks for (differs) | 1, secrets among them: 1 | 1, secrets among them: 0 |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/secretiveshell/mcp-wolfram-alpha | github.com/mcpwright/soi-mcp |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
WolframAlpha
Connect your chat repl to wolfram alpha computational intelligence.
IRS SOI (income by ZIP)
IRS income & tax stats by ZIP in your agent: AGI distribution, tax, credits, deductions.
How to run each
WolframAlpha As a local MCP server: Docker image
claude mcp add --env "WOLFRAM_API_KEY=<YOUR_WOLFRAM_API_KEY>" --transport stdio wolfram-alpha -- docker run -i --rm -e WOLFRAM_API_KEY mcp/wolfram-alphaRequires: WOLFRAM_API_KEY (secret)
IRS SOI (income by ZIP) As a local MCP server: PyPI package
claude mcp add --transport stdio soi-mcp -- uvx mcpwright-soiCommands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
The marketplaces of IRS SOI (income by ZIP) publish no list of tools, so we do not compare tools.
Settings each asks for
Only WolframAlpha asks for
WOLFRAM_API_KEY (secret)
Only IRS SOI (income by ZIP) asks for
SOI_MCP_STORE
Settings as each marketplace publishes them. Asking for fewer is not better in itself.
What it can do: WolframAlpha · What it can do: IRS SOI (income by ZIP) · Compare two other plugins
Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.