Companies — Email

List a domain's emails

POST/companies/domain-emails

from $0.03/calljson responserest · mcp

01// about this endpoint

Return the email addresses found for a domain (or company name) along with first/last name, position, type (personal/generic), and verification metadata. Filter by seniority and department to scope to the right buyer team.

02// code samples

Call it over REST

Authenticate with a bearer token against https://api.superagnt.com. Swap the placeholders for your key and parameter values.

curlbash

curl -s -X POST "https://api.superagnt.com/companies/domain-emails" \
  -H "Authorization: Bearer <YOUR_AGNTDATA_API_KEY>" \
  -H "Content-Type: application/json" \
  -d '{ "domain": "<string>", "company": "<string>" }'

03// give it to your agent

Copy-paste prompt

Paste this into a coding agent. It connects the superagnt MCP server, finds the tool data_agnt_companies_domain_emails, and runs a first call — with the REST fallback if MCP is unavailable.

agent prompttext

You are wiring up the superagnt "Lead APIs" API to use this endpoint: List a domain's emails.

1. CONNECT over MCP (preferred). No token to paste either way.
   On Claude (claude.ai, the desktop app, or Claude Code signed in with a Claude
   account), the server is a connector: give the user this link, they click Add
   and approve:
     https://claude.ai/customize/connectors/yours?modal=add-custom-connector&connectorName=superagnt&connectorUrl=https%3A%2F%2Fmcp.superagnt.com%2Fmcp&open_in_browser=1
   Any other MCP client (or Claude Code signed in with an API key): add the server
   and let the client run the browser sign-in:
     claude mcp add --scope user --transport http superagnt https://mcp.superagnt.com/mcp
     claude mcp login superagnt
   MCP endpoint: https://mcp.superagnt.com/mcp
   After connecting, the tool you want is named exactly:
     data_agnt_companies_domain_emails
   Call agnt_tools_search or agnt_tools_list_enabled to confirm it is available.

2. REST fallback (if you are not using MCP):
     POST https://api.superagnt.com/companies/domain-emails
     Header: Authorization: Bearer <YOUR_AGNTDATA_API_KEY>
   Required parameters:
    - (none)
   Optional parameters:
    - domain (string, optional)
    - company (string, optional)
    - limit (integer, optional)
    - offset (integer, optional)
    - type (string, optional)
    - seniority (string, optional)
    - department (string, optional)

3. COST & KEY. This endpoint is metered — pricing varies by request, from $0.03 per call. Only successful calls are charged.
   Get a superagnt API key at https://app.superagnt.com.

4. TEST. Connect the server (or set the key), discover the tool
   (data_agnt_companies_domain_emails), run one minimal call with just the required parameters,
   and report back the shape of the JSON response (top-level fields).

Reference (machine-readable variant): https://www.superagnt.com/docs/apis/lead/agnt/endpoints/companies_domain_emails.md

mcp tool definitionjson

{
  "name": "companies_domain_emails",
  "description": "Return the email addresses found for a domain (or company name) along with first/last name, position, type (personal/generic), and verification metadata when available.",
  "parameters": {
    "type": "object",
    "properties": {
      "domain": {
        "type": "string",
        "minLength": 1
      },
      "company": {
        "type": "string",
        "minLength": 1
      },
      "limit": {
        "type": "integer",
        "exclusiveMinimum": 0,
        "minimum": 0,
        "maximum": 100
      },
      "offset": {
        "type": "integer",
        "minimum": 0
      },
      "type": {
        "type": "string",
        "enum": [
          "personal",
          "generic"
        ]
      },
      "seniority": {
        "type": "string",
        "minLength": 1
      },
      "department": {
        "type": "string",
        "minLength": 1
      }
    },
    "required": []
  }
}

04// parameters

Name	In	Type	Required
`domain`	body	`string`	optional
`company`	body	`string`	optional
`limit`	body	`integer`	optional
`offset`	body	`integer`	optional
`type`	body	`string`	optional
`seniority`	body	`string`	optional
`department`	body	`string`	optional

05// responses

Domain email results.

200json

{
  "type": "object",
  "required": [
    "success",
    "data"
  ],
  "properties": {
    "success": {
      "type": "boolean",
      "enum": [
        true
      ]
    },
    "data": {
      "$ref": "#/components/schemas/CompaniesDomainEmailsResponse"
    },
    "meta": {
      "$ref": "#/components/schemas/AgntMeta"
    }
  }
}

06// pricing

from $0.03per successful request

Metered endpoint — the exact cost depends on the request. Credits are deducted per successful call; failed requests (4xx/5xx) are not charged.

Get started at app.superagnt.com.

08// more from Lead APIs

POSTFind a person's professional email/people/email-finder POSTVerify a professional email/people/email-verifier POSTEnrich a person/people/enrich POSTFind a mobile phone number/people/find-mobile POSTSearch people/people/search POSTBulk enrich people/people/bulk-enrich

All Lead APIs endpoints See it as a tool

start calling

Point your client at https://mcp.superagnt.com/mcp and your agent has this endpoint, plus every other source on one balance.

Start free→

domain email search APIdomain to email APIcompany contacts APIlead enrichment APIemail finder APIemail verifier API