Sample entry: error responses now carry a stable machine-readable code alongside the human-readable message.

Machine-readable error codes

ResourceSchema

Section

English

Language

Dev Title

Working notes on the API resources behind the site.

PlaylistItem

PlaylistLanguage

Playlist

Dev API Reference

Section intro for the API Reference block.

API Reference intro

Placeholder guide: how tokens work, how to mint one and how to rotate keys safely.

Authentication & API keys

Placeholder guide: token-bucket limits, what a 429 response looks like and how to retry safely.

Rate limits

Placeholder guide: cursor pagination, page sizes and stable ordering guarantees.

Pagination

Placeholder guide: subscribing to events, verifying signatures and handling redelivery.

Webhooks

Placeholder guide: the error envelope, common codes and what each one asks you to do.

Error codes

Placeholder guide: versioning policy, deprecation windows and how to pin a version.

Versioning

Dev Guides & Tutorials

Guides & tutorials intro

Dev Changelog & Updates

Changelog & updates intro

Sample entry: webhook endpoints now accept event filters at subscription time, cutting noisy deliveries.

Webhook event filters

Sample entry: list endpoints now return stable cursors, so pages never shift between requests.

Stable cursor pagination

www.expresia.com

Expresia — AI for creation. A platform for everything after.

Homepage v2

Brand

Explore Expresia’s platform, screenshots, creation, production, commerce, governance and business context.

Platform

The foundation behind the experience | Expresia V7

Create through conversation, sketches or the visual editor. Xia and her helpers build real, editable pages on a production platform, then check their own work.

Create

Create with Expresia | Expresia V8

Managed hosting, structured content, many sites and many languages. Every customer runs on an isolated instance of their own.

Run with Expresia | Expresia V8

Sell, sign members up, take bookings and answer visitors. The same Xia that builds your site talks to the people who visit it.

Grow

Grow with Expresia | Expresia V8

Xia learns your brand, products and decisions in a Knowledge Hub you can see and edit, so every new page starts from what you already know. Self-optimisation is next.

Learn

Learn with Expresia | Expresia V8

Permissions, approvals, version history and human sign-off on AI actions. Choose the AI models, and the keys, you trust.

Govern

Govern with Expresia | Expresia V8

Custom data, instant APIs, server-side logic and Xia Apps, for the tools and applications your business runs on.

Extend

Extend with Expresia | Expresia V8

Build (redirects to Create)

Sell (redirects to Grow)

Remember (redirects to Learn)

Experiences

Partners

Expresia plans with Xia included: Starter, Growth, Business, Scale and Enterprise.

Pricing

Create your free Expresia account. Bring what you have - a website, documents or an idea - and leave with a site that actually works.

Recentupdates

Webhook event filters

Stable cursor pagination

Machine-readable error codes

Recent
updates