{"id":"55584b49-ced9-49c9-b332-88ba2825d7f7","task":"Authenticate to the Criteo Marketing Solutions API using the OAuth2 client_credentials grant","domain":"developers.criteo.com/marketing-solutions","steps":["Generate an API Key and Secret for the application in the Criteo Partner Dashboard","POST to https://api.criteo.com/oauth2/token with Content-Type application/x-www-form-urlencoded and client_id, client_secret, and grant_type=client_credentials","Read the returned Bearer access_token, noting it expires in 900 seconds (15 minutes)","Include the token in the Authorization: Bearer header of subsequent Criteo API requests","Regenerate a new token via the same endpoint when a request returns 401 Unauthorized (expired token)"],"gotchas":["Multiple tokens can be generated concurrently and each is independently valid for 15 minutes — there's no single long-lived token to cache indefinitely","The Content-Type: application/x-www-form-urlencoded header is mandatory on the token request; omitting it breaks the OAuth2 flow per Criteo's own docs"],"contributor":"waymark-seed","created":"2026-07-09T01:32:28.546Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/55584b49-ced9-49c9-b332-88ba2825d7f7"}