> ## Documentation Index > Fetch the complete documentation index at: https://api-docs.helpyousponsor.com/llms.txt > Use this file to discover all available pages before exploring further. # Request to join a public trip > Creates a requested trip participant from the public trip page. The controller only accepts active trips with `request_to_join_enabled` set in trip settings, then delegates validation and participant creation to `TripParticipantService::createJoinRequest`. The service requires `email`, may require standardized donor fields or public signup fields configured for the trip donor form, creates or updates a donor, creates a fundraising entity, and stores the participant with `requested` status. ## OpenAPI ````yaml post /frontend/public/trips/{clientSlugOrId}/{tripSlug}/request-to-join openapi: 3.0.0 info: title: Gratona API description: >- REST API for the Gratona fundraising platform, including donor, donation, sponsorship, program, event, and integration workflows. Endpoints are organized by tag. Most endpoints require either a Passport bearer token or an issued API key — see the Security Schemes section. contact: name: Gratona Engineering url: https://gratona.com email: devs@gratona.com version: 1.0.0 servers: - url: https://api.gratona.com/v1 description: Server Version 1.0.0 security: [] tags: - name: Auth description: >- Login, signup, logout, password reset, and email verification for admin users and donors. - name: Donors description: >- Donor records: CRUD, profile fields, household linkage, search, filters, merge, and duplicate detection. - name: Donations description: >- Individual donation records, recurring commitments, soft credits, refunds, designations, and exports. - name: Sponsorships description: >- Donor-to-entity sponsorship relationships, lifecycle transitions, and sponsorship-specific filters. - name: Entities description: >- Recipient records (children, families, projects, animals, etc.), their status, and entity-level fields. - name: Programs description: >- Program / campaign configuration: hierarchy, settings, and program-level metadata. - name: Forms description: >- Custom form builder (HysForm), form fields, standardized donor fields, and field migrations. - name: Trips description: >- Mission-trip management: trips, participants, budgets, tasks, e-signatures, fundraising milestones, and background checks. - name: Communications description: >- Email templates, SMS, newsletters, donor email manager, and per-donor notes. - name: Payments description: >- Payment-gateway management (Stripe, PayPal, Flutterwave, QuickBooks). Excludes inbound webhooks — see the Webhooks tag. - name: Reports description: Dashboards, analytics, scheduled reports, and exports. - name: Admin description: >- Client-account administration: users, groups/permissions, settings, integrations, and account lifecycle. - name: Donor Portal description: >- Endpoints consumed by the donor-facing portal (donor login, dashboard, donation history, messages). - name: Recipient Portal description: Endpoints consumed by the recipient-facing portal. - name: Public description: >- Unauthenticated public endpoints: donor signup, public trip pages, peer-to-peer campaigns, public checkout. - name: Webhooks description: >- Inbound webhooks from third parties (Stripe, PayPal, Flutterwave, Checkr, DropboxSign). Annotated minimally for reference; payload shapes are owned by the upstream provider. - name: Client description: Client - name: Email Settings description: Email Settings - name: Admin Dashboard description: Admin Dashboard - name: Historical Archived Updates description: Historical Archived Updates - name: Team & access description: Team & access - name: Files description: Files - name: Wrapped description: Wrapped - name: Donor SignUp description: Donor SignUp - name: Frontend description: Frontend - name: User description: User paths: /frontend/public/trips/{clientSlugOrId}/{tripSlug}/request-to-join: post: tags: - Public summary: Request to join a public trip description: >- Creates a requested trip participant from the public trip page. The controller only accepts active trips with `request_to_join_enabled` set in trip settings, then delegates validation and participant creation to `TripParticipantService::createJoinRequest`. The service requires `email`, may require standardized donor fields or public signup fields configured for the trip donor form, creates or updates a donor, creates a fundraising entity, and stores the participant with `requested` status. operationId: requestToJoinPublicTrip parameters: - name: clientSlugOrId in: path description: >- Organization identifier from the public trip URL. Numeric values are treated as client ids; non-numeric values are matched to organization slugs. required: true schema: type: string example: acme-foundation - name: tripSlug in: path description: >- Active trip slug within the resolved client. The controller rejects inactive, completed, missing, or request-disabled trips. required: true schema: type: string example: guatemala-summer-2026 requestBody: description: >- Public join-request donor and participant details. Validator rule always requires `email`; additional required keys are dynamic based on the trip donor form's public standardized fields and required custom fields. required: true content: application/json: schema: required: - email properties: email: description: >- Participant donor email. Validator rule: `required|email|max:255`. Existing donors are reused by client/email; otherwise the service creates a donor. type: string format: email maxLength: 255 example: participant@example.org type: description: >- Donor identity type; defaults to INDIVIDUAL when neither type nor donor_type is supplied. type: string default: INDIVIDUAL enum: - INDIVIDUAL - ORGANIZATION example: INDIVIDUAL organization_name: description: Required when the normalized donor type is ORGANIZATION. type: string maxLength: 255 example: Acme Foundation policy_revision: description: >- Optional revision from join_request_form. If standardized fields are enabled, an outdated supplied revision returns 409 with the current contract. type: string example: current-form-revision first_name: description: >- Optional standardized donor first name stored on the donor and in donor `json_fields` when provided. type: string example: Sam nullable: true last_name: description: >- Optional standardized donor last name stored on the donor and in donor `json_fields` when provided. type: string example: Taylor nullable: true phone: description: >- Optional standardized phone value stored on the donor when provided. type: string example: '+15551234567' nullable: true country_code: description: >- Optional ISO alpha-2 country code. When standardized fields are enabled and supplied, validator rule: `nullable|string|size:2|ValidCountryCode`. type: string maxLength: 2 minLength: 2 example: US nullable: true subdivision_code: description: >- Optional ISO subdivision code. When standardized fields are enabled and supplied, validator rule: `nullable|string|max:10|ValidSubdivisionForCountry`. type: string maxLength: 10 example: US-CA nullable: true individual_goal: description: >- Optional participant fundraising goal. If absent the service uses the trip default individual goal. type: number format: float example: 2500 nullable: true is_public: description: >- Optional participant visibility flag. Defaults to true when omitted. type: boolean example: true nullable: true is_anonymous: description: Optional anonymity flag stored on the participant. type: boolean example: false nullable: true bio: description: Optional public participant bio. type: string example: I am raising funds for this service trip. nullable: true video_url: description: Optional public intro video URL. type: string example: https://www.youtube.com/watch?v=abc123 nullable: true social_links: description: >- Optional public social links stored directly on the participant. type: object nullable: true is_minor: description: >- Optional minor flag. Guardian fields are stored when supplied but are not exposed by public endpoints. type: boolean example: false nullable: true guardian_name: description: Optional guardian name for minor participants. type: string example: Jordan Taylor nullable: true guardian_email: description: Optional guardian email for minor participants. type: string format: email example: guardian@example.org nullable: true guardian_phone: description: Optional guardian phone for minor participants. type: string example: '+15557654321' nullable: true guardian_relationship: description: Optional guardian relationship for minor participants. type: string example: Parent nullable: true type: object additionalProperties: true responses: '201': description: Join request received. content: application/json: schema: properties: message: type: string example: Your request to join has been received. data: properties: participant_id: type: integer example: 9001 status: type: string example: requested type: object type: object '404': description: Organization or active trip was not found. content: application/json: schema: $ref: '#/components/schemas/NotFoundResponse' '409': description: >- The submitted policy revision no longer matches the public trip form contract. '422': description: Request-to-join disabled or validation failed. content: application/json: schema: $ref: '#/components/schemas/ValidationErrorResponse' '429': description: The public recipient creation rate limit was exceeded. security: [] components: schemas: NotFoundResponse: title: NotFoundResponse description: >- Returned with HTTP 404 when a resource lookup misses (typically because the id doesn't exist OR is scoped to a different `client_id`). Note: many endpoints intentionally collapse 'not found' and 'forbidden' into a single 404 to avoid leaking which records exist in another tenant. required: - message properties: message: description: >- Human-readable message. Often a more specific string like `Donor not found` or `Trip not found`. type: string example: Not Found status: type: string example: error type: object ValidationErrorResponse: title: ValidationErrorResponse description: >- Returned with HTTP 422 when `Validator::make($data, $rules)` fails. The `errors` map is keyed by the failing field name; each value is an array of human-readable error messages for that field. Most controllers also include a top-level `status: error`. required: - errors properties: errors: description: >- Map of field name to array of validator error messages. Example: `{email: [The email field is required.], amount: [The amount must be a number.]}`. type: object additionalProperties: type: array items: type: string status: description: Always the literal string `error`. type: string example: error message: description: >- Optional summary message — present on some endpoints, absent on others. type: string example: The given data was invalid. nullable: true type: object ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.