ReferenceREST API functionsLeadsmutateleads.add

leads.add

Add one company/contact. Pass analysis with research you already did and the message is written from it instead of a fresh crawl.

RESTPOST /v1/leads
RPC formPOST /mcp/mutate with "fn": "leads.add"
Scopewrite
Sandbox keyallowed
Extra entitlementnone
MCP toolsselda_add_lead
Internal functionmcpQueries:addLead

A free sandbox key may call it.

Arguments

ArgumentTypeRequiredNotes
projectIdstringrequired
firstNamestringoptional
lastNamestringoptional
emailstringoptional
companystringoptional
companyDomainstringoptional
jobTitlestringoptional
linkedinUrlstringoptional
phonestringoptional
notesstringoptional
analysisstringoptional
outreachAnglestringoptionalThe opening the operator already chose, and why they chose the company. Both are read by the engine (operatorAngle governs the opening, whyGoodLead feeds research and the fit call). They were wired into the engine on 17.8.2026 and had no door on this mutation for an hour, which is the same shape of gap the analysis had for a week: read by a writer, unreachable by the caller.
whyGoodLeadstringoptional
externalUrlstringoptional
mediaImageUrlstringoptionalA PICTURE FOR THIS ONE PERSON’S MESSAGE (15.9.2026). mediaImageUrl is a public https address, a gif rendered for this company, a screenshot of their own site. mediaLinkUrl makes it clickable, which is how a gif opens a video. It goes into THIS lead’s draft when the draft is composed, so it is in the text the human approves, and it beats any picture set on the campaign as a whole. A picture never costs a lead: an address that cannot be used is dropped, the lead is created anyway, and the answer says in words what was not kept and why (mediaRejected).
mediaLinkUrlstringoptional
mediaAltstringoptional
mediaWidthnumberoptional
sourcestringoptional
tagsstring[]optional
citystringoptional
countrystringoptional
locationstringoptional
customFieldsanyoptional
fieldsRecord<string, any>optionalYour own data for this company’s personal page, e.g. { demo: "https://...", offer: "...", price: 49 }.

What Selda fills in

You never send these. The HTTP layer overwrites them from the API key, which is what keeps one organisation’s data out of another’s reach.

ArgumentFilled in from
orgIdyour organisation, resolved from the API key
userIdthe user the API key belongs to

Example request

Required arguments only. Values in angle brackets are yours to fill in; the optional ones are in the table above.

curl -X POST https://api.selda.ai/v1/leads \
  -H "Authorization: Bearer sk_live_..." \
  -H "Content-Type: application/json" \
  -d '{ "projectId": "<projectId>" }'
{
  "projectId": "<projectId>"
}

The same call in the RPC form

One dispatcher answers both, so this is the same request at a different URL. Use it when you are already posting to /mcp/*, or for a function that has no path of its own.

curl -X POST https://api.selda.ai/mcp/mutate \
  -H "Authorization: Bearer sk_live_..." \
  -H "Content-Type: application/json" \
  -d '{ "fn": "leads.add", "args": { "projectId": "<projectId>" } }'
{
  "fn": "leads.add",
  "args": {
    "projectId": "<projectId>"
  }
}

Example response

Every endpoint answers in the same envelope, whichever URL you called.

{
  "value": <the function's return value>,
  "request_id": "req_..."
}

The shape of value is not documented here. mcpQueries:addLead declares no returns validator, so there is nothing to derive it from, and a shape written out by hand here is a shape that goes stale without anything noticing. Call it once against a test key and read what comes back.

On failure the body is { "error": { "type", "code", "message", "request_id" }, "request_id" } and request_id is echoed in the X-Request-Id header.


Generated from convex/lib/mcpRegistry.ts. Nothing in this reference sends: launchRun is in no registry and never will be, so a script can prepare a campaign completely and a person still presses send in the app.