list_families
List catalogue families
Every component family in the TAS catalogue, with how many parts it holds and whether it has a deterministic selector. Start here.
Takes no parameters.
Kelvin — power electronics components
io.github.OpenConvertersPublished by GitHub account OpenConvertersv0.1.0Updated Oct 27, 2026
Read-only parts catalogue for power electronics: search, selection, cross-reference.
Overview
AI-generated overview
Read-only remote catalogue of power electronics parts: browse families, run parametric searches, rank parts against requirements, and find substitutes.
- What you can do
- List component families with part counts and selector availability, and inspect a family's filterable, sortable and bucketable field names
- Run parametric searches within a family by numeric ranges, categorical values, MPN substring and manufacturer, with optional facet counts
- Look up a single part by MPN, including extracted specs and optionally the full catalogue record with datasheet and provenance
- Rank real parts against a design requirements block and return candidates with the margins that ranked them
- Show how one numeric spec is distributed across a filtered slice, with bucket counts and how many parts state the value
- Find scored substitutes for a part by MPN, pre-gated and scored on…
- When to use it
- Useful when an assistant needs to answer questions about which power electronics parts exist, compare candidates, or pick and cross-reference parts for a design without leaving the conversation. Selection and cross-reference are deterministic and reproducible, so it suits engineering work where the reasoning must be auditable.
- Requirements
- A remote streamable HTTP endpoint; no package, environment variables or headers are declared, and no authentication is declared. Network access to the hosted service is needed.
Before you install
The catalogue is read-only, so nothing is written or changed. Filtering on a field excludes parts whose record does not state that value, so absence is never reported as zero; unknown filter fields raise an error rather than being ignored. Values are in SI base units. Selection and cross-reference results are deterministic rankings, not LLM judgement, and should be checked against datasheets before design use.
Installation
In SourceWeft
- Open Kelvin — power electronics components in the dashboard and add it to a workspace.
- Enable the server for the chats that should use its tools.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Use with an agent
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/io.github.OpenConverters%2Fkelvin/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.Other MCP clients
Add this to your client's mcpServers config.
{
"mcpServers": {
"kelvin-power-electronics-components": {
"type": "http",
"url": "https://kelvin.openconverters.com/mcp"
}
}
}Tools
7describe_family
Describe a family's query vocabulary
The exact field names one family can be filtered, sorted and bucketed on, and the designRequirements keys its selector reads. Call this before search_parts on an unfamiliar family rather than guessing field names.
Parameters
familyrequiredsearch_parts
Search the parts catalogue
Parametric search over one family: numeric ranges, categorical values, MPN substring and manufacturer, with optional facet counts. This is the catalogue question — 'what parts do we have that ...' — and needs no converter design.
Parameters
sortlimitfamilyrequiredoffsetfilterswith_facetspart_details
Look up one part
One part by MPN: its extracted specs and, optionally, the full TAS catalogue record behind them (datasheet URL, mechanical drawing, provenance).
Parameters
mpnrequiredfamilyrequiredmanufacturerinclude_recordrecommend_parts
Recommend parts for a requirement
Kelvin's deterministic selector: rank real parts against a designRequirements block and return the candidates with the margins that ranked them. Same authority Kirchhoff and Heaviside select through — no LLM judgement, reproducible.
Parameters
familyrequiredoptionsmax_resultsrequirementsrequiredinclude_envelopespec_distribution
Distribution of a spec
How one numeric spec is distributed across a filtered slice of a family — bucket counts (log or linear) plus how many parts state the value at all. Answers 'what is available' questions that a top-N list cannot.
Parameters
logfieldrequiredfamilyrequiredbucketsfilterscross_reference
Cross-reference a part
Find substitutes for a part by MPN — the deterministic, program-only cross-reference the Kelvin web app runs: pre-gate the catalogue at the ranker's own reject edges, then score every candidate on value, ratings, footprint and mount type. No LLM judgement. An original whose own specs are incomplete can never yield a clean 'recommended'.
Parameters
mpnrequiredfamilyrequiredsame_typemax_resultsmanufacturertarget_manufacturersVersion history
1- v0.1.0LatestOct 26, 2026
Score
83% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
- Reached in the last 30 daysRequired25 pts
- Auth declaredRequired10 pts
- Tools listedRequired15 pts
- DescriptionRequired15 pts
- Logo10 pts
- Documentation15 pts
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
- LicenseNot applicable
A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.
