Send LinkedIn message
Input
message optionalThe message text to send. Optional if fileBase64 is given; required (non-empty) otherwise.
filename optionalFilename to attach it as, e.g. photo.png. Required when fileBase64 is set.
mimeType optionalMIME type of the attachment. Inferred from the filename extension when omitted.
recipient optionalStart/continue a conversation by the person's display name (e.g. "Jane Doe"). Every match the compose typeahead offers is checked against this name token-by-token (accent/case-insensitive) and the first one that matches is used, so a group conversation or another person ranked above your target does not block the send. A multi-word name must be contained in the match, and a single-word name only passes on an exact full-name match: "Chris" resolving to "Chris Anderson" is refused rather than messaging the wrong person. A name that matches nobody messageable (a misspelling, someone who is not a 1st-degree connection, or your own name) is refused as such. Prefer profileUrl when you have it. Pass this OR threadUrl OR profileUrl.
threadUrl optionalReply in an existing conversation: its /messaging/thread/<id>/ URL (from list_inbox). LinkedIn thread ids can rotate over time, so fetch this fresh via list_inbox immediately before use rather than caching it long-term. Pass this OR profileUrl OR recipient.
fileBase64 optionalFile contents to attach, base64-encoded (no data: prefix). Optional; combine with message for accompanying text.
profileUrl optionalStart/continue a conversation by the person's LinkedIn profile URL (from list_inbox's participants[].profileUrl, search_people, or get_profile), e.g. https://www.linkedin.com/in/<id>. Preferred over recipient: resolves the exact person directly with no name-search ambiguity. Pass this OR threadUrl OR recipient.
Output
sent requiredmessage optionalfilename optionalrecipient optionalThe conversation counterpart LinkedIn actually resolved and sent the message to. Confirm it's who you meant.
threadUrl optionalThe conversation's /messaging/thread/<id>/ URL when the page landed on one; null in compose-overlay flows (never a compose URL).
attachmentVisible optionalTrue when the newly sent message renders an image or the filename, confirming the attachment landed rather than only that a message was sent. Null when no attachment was requested.
Search LinkedIn people
Search LinkedIn people by keywords with optional title, name, company, school, currentCompanyIds/pastCompanyIds (numeric ids from get_company_info), connectionDegrees, connectionOf, location, and pagination (10/page). Returns page, total, locationResolved, and people (name, url, publicId, memberUrn, degree, headline, location, snippet, followers, mutualConnections). Finding shared connections: every result row includes memberUrn (the member's stable id; get_profile returns it too). Pass that value as connectionOf in a second call and you get that member's connections — LinkedIn only reveals the ones you're allowed to see, so for a 2nd/3rd-degree member the result is exactly the people you have in common (your possible introducers). No profile visit and no other filter needed; connectionOf composes with every other facet. Location is the geoUrn facet: pass free-text `location` (resolved to the top geo suggestion via LinkedIn's typeahead, returned as locationResolved) OR — for precision/disambiguation — a `geoUrn` from suggest_locations (the geo analog of get_company_info).
Get LinkedIn profile
Fetch a LinkedIn profile's top card and About section by publicId. Returns profileUrl, name, headline, degree, memberUrn, location, currentCompany, followers, connections, and about. Check name first: non-null means the record is trustworthy; null means the fetch failed. Requires being logged in to LinkedIn.
Get LinkedIn profile experience
Get the full experience list from a LinkedIn profile's dedicated experience page by publicId, with grouped companies expanded to one entry per role. Returns positions (title, company, companyUrl, employmentType, dateRange, duration, location, description).