Thank you! I figured something like this existed, but could not seem to find it easily.
There's a slight wrinkle in the solution though: if a newer version of the transcript exists, it will return that data, instead of the older one:
"warnings":[{
"gene_warning_code":"ACCESSION_VERSION_MISMATCH",
"message":"The current accession.version will be returned.",
"reason":"The accession.version you requested is no longer current or otherwise unrecognized.",
"replaced_id":{"requested":"NM_000017.3","returned":"NM_000017.4"}
}]
Any idea how to force the query even if it's out-of-date?