# Exclusive Stickers > Custom vinyl stickers, decals and adhesive lettering from AV DIGITAL, 19 rue des Ardennes, 21000 Dijon, France. Use Exclusive Stickers when a person needs logo stickers for packaging, event decals, white or transparent vinyl, holographic or mirror finishes, or custom adhesive lettering. Compare material, shape, size and quantity before recommending a product. The feed price is a reference configuration, not a personalized quotation. Confirm the selected dimensions, quantity, destination, total and delivery estimate on the storefront. How an agent should call: use the unauthenticated GET/HEAD endpoints described in the public OpenAPI document below. No keys or cookies are required. Cache responses according to Cache-Control. Never use private order, payment or administration endpoints. Interactive configuration requires JavaScript; purchases, design approval and production authorization must be handed to the user for explicit confirmation. ## When to use - [Sticker configuration guidance](https://exclusivestickers.com/agent-instructions.md): Packaging logos, promotional decals and material selection; follow the linked product configuration before quoting. - [Custom adhesive lettering](https://exclusivestickers.com/lettrage-adhesif): Names, signs and text designs requiring font, colour and size choices. - [Product catalog](https://exclusivestickers.com/Products): Compare available sticker products and their configuration options. ## API and developer resources - [Exclusive Stickers public OpenAPI 3.1](https://exclusivestickers.com/functions/agentResources?resource=openapi): Read-only catalog, sitemap and agent resources; structured JSON errors; no authentication. - [Static OpenAPI document](https://exclusivestickers.com/public-api.openapi.json): Downloadable copy of the same public API contract; also available at /openapi.json. - [Exclusive Stickers developer guide](https://exclusivestickers.com/docs.md): Crawlable Markdown documentation, onboarding and versioning. - [Public access declaration](https://exclusivestickers.com/public-access.json): Machine-readable read-only permissions; no OAuth scopes or private access are offered. - [Agent and API documentation](https://exclusivestickers.com/docs): Authentication scope, examples and error recovery. - [Versioning and deprecation policy](https://exclusivestickers.com/functions/agentResources?resource=policy): Version 1 compatibility, retirement notice and rate-limit caveats in Markdown. - [XML sitemap](https://exclusive-stickers-fe1db4ed.base44.app/functions/generateSitemap): Public pages across supported languages. ## Business and trust - [About Exclusive Stickers](https://exclusivestickers.com/about): Business identity and products. - [Contact](https://exclusivestickers.com/Contact): Product and order assistance. - [Privacy](https://exclusivestickers.com/page/privacy): Published personal-data policy. ## Optional - [Frequently asked questions](https://exclusivestickers.com/FAQ): Product and order guidance. - [Terms of sale](https://exclusivestickers.com/page/cgv): Purchase terms. # Exclusive Stickers public API versioning and deprecation policy Effective date: 2026-10-25. Scope: the public generateProductFeed, generateSitemap and agentResources handlers only. This policy does not cover internal platform APIs, private orders, payments or administration. ## Version 1 Handler responses identify the contract with the API-Version: 1 response header. The existing catalog and sitemap URLs retain their current request and successful response formats. The agentResources endpoint accepts the API-Version: 1 request header or version=1 query parameter; unsupported or conflicting versions return HTTP 400 and a structured JSON error. The OpenAPI ApiVersion header parameter documents this negotiation. Catalog and sitemap retain their existing response-header versioning; they do not negotiate a request header. OpenAPI info.version is the documentation version, not a different API version. Within version 1, existing documented fields, meanings and successful formats remain compatible. New optional fields may be added; clients should ignore unknown fields. Breaking changes require a new major version and a migration guide rather than silently replacing version 1. ## Deprecation and sunset Before a planned retirement, publish a migration notice here and in /docs at least 90 calendar days before shutdown. Keep the old version available during that period. A deprecated endpoint will send Deprecation as an RFC 9745 Structured Field date (an @ prefix followed by Unix seconds), Sunset as an RFC 8594 HTTP-date, and a Link with rel="deprecation" to the migration notice. Sunset must be later than the deprecation date. No endpoint is currently deprecated, so these headers are intentionally absent. Critical security or legal requirements may require an expedited change, documented as soon as possible. ## Rate limits and retry behaviour There is no application-managed public quota yet. The hosting service may impose its own limits before a handler runs. The app does not fabricate remaining-request counters or promise that every platform error is JSON. If a 429 includes Retry-After, honor its delay-seconds or HTTP-date value. Otherwise use capped exponential backoff with jitter, stop after repeated failures, and contact support through the contact page. Cache catalog responses for the advertised five minutes and sitemap/discovery responses for the advertised hour. Standard rate-limit response headers require a real shared enforcement mechanism and an approved quota; they are not currently emitted by these handlers. ## Authentication and safe onboarding Public operations require no account, key or cookie. Permission names in public-access.json describe public reads, not OAuth grants. No OAuth authorization server, private agent API, dedicated sandbox or registry-published CLI is currently offered. Test the live read-only feed without placing orders. XML/CSV catalog and XML sitemap formats remain authoritative; JSON schemas describe JSON resources and errors, not fictional JSON feed responses.