Program Integrity Alliance vs Emission Factors
Program Integrity Alliance is an MCP server published by Program-Integrity-Alliance. Marketplaces we read that list it: 1 (Docker MCP Catalog). Emission Factors is an MCP server published by rozetyp. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-23. 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 |  Program Integrity Alliance |  Emission Factors |
|---|---|---|
| Docker MCP Catalog | Listed Version: sha256:7b4f383fd466 Forks (GitHub): 1 Pulls (Docker Hub): 13 482 Stars (Docker Hub): 1 Stars (GitHub): 4 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 1.8.0 Forks (GitHub): 0 Stars (GitHub): 1 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 | Program Integrity Alliance | Emission Factors |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 4 (better) | 1 (worse) |
| Pulls (Docker Hub) (differs) | 13 482 | No figure on Docker Hub |
| Forks (GitHub) (differs) | 1 (better) | 0 (worse) |
| Last release (differs) | Not published | 2026-10-19 |
| Where it runs (differs) | On your machine (mcp/pia) | Remote server (emission-factors.com/mcp) |
| Transport (differs) | stdio | Streamable HTTP |
| Tools it declares (differs) | 2 | Not published |
| Environment variables it asks for (differs) | 1, secrets among them: 1 | Not published |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/program-integrity-alliance/pia-mcp-local | github.com/rozetyp/emission-factors-mcp |
| Changes in the last 7 days (differs) | 0 | 1 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | Responded 42 h ago |
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
Program Integrity Alliance
An MCP server to help make U.S. Government open datasets AI-friendly.
Emission Factors
Keyless US grid carbon + power cost by ZIP: eGRID Scope 2, Scope 1 fuels, site ranking, clean hours
How to run each
Program Integrity Alliance As a local MCP server: Docker image
claude mcp add --env "PIA_API_KEY=<YOUR_PIA_API_KEY>" --transport stdio pia -- docker run -i --rm -e PIA_API_KEY mcp/piaRequires: PIA_API_KEY (secret)
Emission Factors As a remote MCP server
claude mcp add --transport http emission-factors https://emission-factors.com/mcpCommands built only from what the marketplaces declare; the full set for every client is on each card.
Only Emission Factors has a remote endpoint we check. How we check endpoints
Tools each declares
Only Program Integrity Alliance has
pia_oversight_recommendationspia_search
Only Emission Factors has
calculate_emissionscalculate_fuel_emissionscleanest_hourscompare_siteselectricity_ratehourly_intensitylookup_batchlookup_by_coordinateslookup_emission_factorplant_emissionsutility_tariff
Both have
None
Tool names as the marketplaces declare them and as Ext Ops observed them on the endpoints (Emission Factors as of 2026-10-23). More tools is not better in itself: compare what each needs for the job.
Settings each asks for
The marketplaces of Emission Factors publish no settings it asks for, so we do not compare settings.
What it can do: Program Integrity Alliance · What it can do: Emission Factors · 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.