https://numestri.com/blog/choose-exactly-the-number-you-want

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Choose exactly the number you want

· 1 min read
Four levels of the catalogue tree, platform to option

Until now, when two suppliers could sell you a number, you got whichever we ranked first. Now you can see them all and choose.

Every option, side by side

For any platform and country you now see each option: one provider, selling from one of its pools, at its own price, with its own stock and — once real orders back it — its own quality. Suppliers often sell one platform from several pools at different prices; each of those is now a separate option too, rather than us quietly picking the cheapest.

Providers stay anonymous. You see a stable id, never a supplier's name.

Walk the catalogue as a tree

The API mirrors this as a tree you walk one level at a time:

platforms  →  countries  →  providers  →  options

Each call returns only the level under your choice — no downloading the whole market to find one price. Every response carries an ETag, so re-reading an unchanged level costs a 304 with no body.

Order the way you want

  • Platform and country: the best option fills it, failing over to the next.

  • Add a provider: only that provider, starting with its best option.

  • Add an option: exactly that offer at its listed price — or a clear refusal. Never a substitute.

The catalogue docs walk through each level, and Choosing an option covers the same choice in the dashboard.

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