generated: '2026-08-13' method: probed source: 'live unauthenticated GET https://api.sendible.com/api/v1/services.json' docs: null summary: types: [http] http_schemes: [basic] api_key_in: [] oauth2_flows: [] publicly_documented: false schemes: - name: basicAuth type: http scheme: basic realm: Application description: >- Every path under https://api.sendible.com/api/v1 answers HTTP 401 with the response header `WWW-Authenticate: Basic realm="Application"` and the body `HTTP Basic: Access denied.` — including paths that do not exist, so the challenge is emitted by the edge before routing. This is an OBSERVED runtime fact, not a documented contract. sources: ['probe: https://api.sendible.com/api/v1/services.json'] evidence: - {url: 'https://api.sendible.com/api/v1', http_status: 401, www_authenticate: 'Basic realm="Application"'} - {url: 'https://api.sendible.com/api/v1/services.json', http_status: 401, body: 'HTTP Basic: Access denied.'} - {url: 'https://api.sendible.com/api/v1/mentions.json', http_status: 401, body: 'HTTP Basic: Access denied.'} - {url: 'https://api.sendible.com/api/v1/openapi.json', http_status: 401, body: 'HTTP Basic: Access denied.'} note: >- NO `Authentication` pointer is emitted in apis.yml for this file, deliberately. The scoring check it feeds is `authentication_documented`, and Sendible publishes no authentication documentation anywhere on a first-party surface: developers.sendible.com is retired (301 to the marketing home page) and the Zendesk help centre carries no API article — the former "How do I set up services for my clients via the API?" article (id 208053026) now returns 404 from the help-centre API. Credentials (application id, API key, shared key/iv) are issued only from inside a signed-in Sendible account. This artifact records what we could observe from outside; it must not be read as the provider documenting their auth model.