Smartlead · Authentication Profile

Smartlead Ai Authentication

Authentication

Smartlead secures its APIs with apiKey across 1 declared security scheme, as derived from its OpenAPI definitions.

Cold EmailOutboundSalesDeliverabilityEmail Warm-upAutomationSequences
Methods: apiKey Schemes: 1 OAuth flows: API key in: query, body

Security Schemes

ApiKeyAuth apiKey
· in: query (api_key)

Source

Authentication Profile

Raw ↑
generated: '2026-08-13'
method: searched
source: openapi/smartlead-ai-openapi.yml
docs: https://api.smartlead.ai/authentication
summary:
  types:
  - apiKey
  api_key_in:
  - query
  - body
  oauth2_flows: []
  scopes: false
schemes:
- name: ApiKeyAuth
  type: apiKey
  in: query
  parameter: api_key
  description: |-
    Your SmartLead API key. You can generate this from your dashboard under Settings > API Keys.

    Include this as a query parameter in all API requests:
    ```
    ?api_key=YOUR_API_KEY
    ```
  applied: >-
    globally — the spec declares a root-level security requirement of [{ApiKeyAuth: []}]
  sources:
  - openapi/smartlead-ai-campaign-statistics-api-openapi.yml
  - openapi/smartlead-ai-campaigns-api-openapi.yml
  - openapi/smartlead-ai-openapi.yml
alternate_transport:
  in: body
  parameter: api_key
  note: >-
    The auth docs state that on POST/PATCH the key may instead be included as an `api_key` field in
    the JSON request body. This is documented but is NOT modelled in the OpenAPI, which declares
    only the query-parameter scheme.
issuance:
  console: https://app.smartlead.ai
  path: Profile icon -> Settings -> API Keys -> Generate New API Key
  shown_once: true
  rotation: >-
    Keys can be regenerated from the dashboard. Agency accounts can additionally create, list,
    reset and revoke per-client keys (see the CLI `clients` command group).
  agency_scoped_keys: true
failure:
  status: 401
  body_shape: '{"success": false, ...}'
  detail: errors/smartlead-ai-problem-types.yml
risk_notes:
- >-
  The credential is carried in the URL query string on every request, including GETs. Query
  strings are routinely recorded in proxy, CDN, load-balancer and web-server access logs, in
  browser history, and in Referer headers — so the key is exposed anywhere the URL is logged.
  SmartLead documents no header-based alternative.
- >-
  Keys are account-wide bearer credentials with no scopes and no least-privilege model: any key
  can read the master inbox, send email, import leads and manage mailboxes. SmartLead's own docs
  say "your API key carries many privileges".
- >-
  The one mitigation SmartLead does offer is agency key segmentation — a separate key per client
  workspace, revocable independently.
not_supported:
- oauth2
- openIdConnect
- mutualTLS
- http bearer
- scopes / granular permissions
- key expiry or TTL (none documented)
related:
  conventions: conventions/smartlead-ai-conventions.yml
  conformance: conformance/smartlead-ai-conformance.yml
x-evidence:
- url: https://api.smartlead.ai/authentication
  http_status: 200
  fetched: '2026-08-13'

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