generated: '2026-07-21' method: searched source: https://apidoc.simplifipay.com/ authentication: style: JWT bearer detail: 'Authorization: Bearer from POST /v1/auth/login/{companyName}' ref: authentication/simplifi-simplifipay-authentication.yml async_model: description: Requests ack with 2xx (often 202 Accepted); final result via webhooks. ref: asyncapi/simplifi-simplifipay-webhooks-asyncapi.yml request_tracing: header: requestUuid required: true length: 20-40 chars description: Caller-supplied unique id on every request; echoed in the webhook for correlation. idempotency: supported: false note: No documented idempotency-key header; requestUuid is a trace id, not an idempotency key. pagination: style: page-number params: - page - size applies_to: - GET /v1/card note: GET /v1/user filters by startDate/endDate. versioning: scheme: uri-path versions: - v1 - v2 error_envelope: fields: errorCode: integer 5-7 digit errorMessage: string ref: errors/simplifi-simplifipay-error-codes.yml webhook_security: headers: - X-SimpliFi-Webhook-Timestamp - X-SimpliFi-Webhook-Signature algorithm: HmacSHA256(timestamp+payload) Base64, pre-shared key body_content_type: application/text