SendGrid · Authentication Profile

Sendgrid Authentication

Authentication

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

EmailEmail APIMarketing EmailSMTPT1Transactional Email
Methods: http Schemes: 1 OAuth flows: API key in:

Security Schemes

BearerAuth http
scheme: bearer

Source

Authentication Profile

Raw ↑ 
generated: '2026-07-11'
method: derived
source: openapi/tsg_account_provisioning_v3.yaml, openapi/tsg_alerts_v3.yaml, openapi/tsg_api_keys_v3.yaml,
  openapi/tsg_domain_authentication_v3.yaml, openapi/tsg_email_activity_v3.yaml, openapi/tsg_email_validation_v3.yaml,
  openapi/tsg_enforced_tls_v3.yaml, openapi/tsg_integrations_v3.yaml, openapi/tsg_ip_access_management_v3.yaml,
  openapi/tsg_ip_address_management_v3.yaml, openapi/tsg_ip_warmup_v3.yaml, openapi/tsg_ips_v3.yaml
  ...
summary:
  types:
  - http
schemes:
- name: BearerAuth
  type: http
  scheme: bearer
  description: Twilio SendGrid requires you to authenticate with its APIs using an API key.
    The API key must be sent as a bearer token in the Authorization header.
  sources:
  - openapi/tsg_account_provisioning_v3.yaml
  - openapi/tsg_alerts_v3.yaml
  - openapi/tsg_api_keys_v3.yaml
  - openapi/tsg_domain_authentication_v3.yaml
  - openapi/tsg_email_activity_v3.yaml
  - openapi/tsg_email_validation_v3.yaml
  - openapi/tsg_enforced_tls_v3.yaml
  - openapi/tsg_integrations_v3.yaml
  - openapi/tsg_ip_access_management_v3.yaml
  - openapi/tsg_ip_address_management_v3.yaml
  - openapi/tsg_ip_warmup_v3.yaml
  - openapi/tsg_ips_v3.yaml
  - openapi/tsg_link_branding_v3.yaml
  - openapi/tsg_lmc_campaigns_v3.yaml
  - openapi/tsg_lmc_contactdb_v3.yaml
  - openapi/tsg_lmc_senders_v3.yaml
  - openapi/tsg_mail_settings_v3.yaml
  - openapi/tsg_mail_v3.yaml
  - openapi/tsg_mc_contacts_v3.yaml
  - openapi/tsg_mc_custom_fields_v3.yaml
  - openapi/tsg_mc_designs_v3.yaml
  - openapi/tsg_mc_lists_v3.yaml
  - openapi/tsg_mc_segments_2.0_v3.yaml
  - openapi/tsg_mc_segments_v3.yaml
  - openapi/tsg_mc_senders_v3.yaml
  - openapi/tsg_mc_singlesends_v3.yaml
  - openapi/tsg_mc_stats_v3.yaml
  - openapi/tsg_mc_test_v3.yaml
  - openapi/tsg_partner_v3.yaml
  - openapi/tsg_recipients_data_erasure_v3.yaml
  - openapi/tsg_reverse_dns_v3.yaml
  - openapi/tsg_scheduled_sends_v3.yaml
  - openapi/tsg_scopes_v3.yaml
  - openapi/tsg_seq_v3.yaml
  - openapi/tsg_sso_v3.yaml
  - openapi/tsg_stats_v3.yaml
  - openapi/tsg_subusers_v3.yaml
  - openapi/tsg_suppressions_v3.yaml
  - openapi/tsg_teammates_v3.yaml
  - openapi/tsg_templates_v3.yaml
  - openapi/tsg_tracking_settings_v3.yaml
  - openapi/tsg_user_v3.yaml
  - openapi/tsg_verified_senders_v3.yaml
  - openapi/tsg_webhooks_v3.yaml