Machine Relations Index (MRI) by Jaxon Parrott: the sources AI engines cite, by buyer category.
Connect Remote server
claude mcp add --transport http mri https://machinerelations.ai/mcp
{
"mcpServers": {
"mri": {
"url": "https://machinerelations.ai/mcp"
}
}
}
{
"servers": {
"mri": {
"type": "http",
"url": "https://machinerelations.ai/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://machinerelations.ai/mcp
Tools 6 found in our last check
mri_list_categoriesList every Machine Relations Index category (e.g. cybersecurity, fintech, enterprise-software, ai-visibility-geo) with the question shapes that have published citation rates, plus the source-role vocabulary. Call this first to get a valid category key.
mri_get_categoryReturn one category's question shapes (best tools, how buyers choose, comparisons, top lists, problem-first research, is it worth it, news) and the evidence state of each: published with rates, collecting, or not collectable.
mri_get_cited_sourcesRanked source domains that AI answer engines cite, pooled across engines, for one category and question shape, with citation rate (share of monitored answer runs citing the domain), rank, percentile and source role (editorial publication, vendor-owned, analyst research, communit…
mri_get_domainFor one domain or URL, return how often AI answer engines cite it: overall citation rate, the rate on each engine (overall.byEngine: cited runs, that engine's observed runs, and whether the engine's sample clears the evidence floor), confidence tier, rank among all cited domains…
mri_list_enginesList each answer engine with its latest-successful model metadata and historical modelPeriods (null when unavailable), the engine's observed runs and days, whether that sample clears the evidence floor, and the most-cited source on that engine across the whole window.
mri_get_engineRanked sources one answer engine cites, by that engine's citation rate across the whole window; an engine whose collection changed inside the window also returns collectionRegime, its sources since the change, which is what it cites now. Pass category to limit the list to source…
Details
| Endpoint | https://machinerelations.ai/mcp (Streamable HTTP) |
| First published | 9 Nov 2026 |
| Last updated | 9 Nov 2026 |
| Registry name | ai.machinerelations/mri |
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