Allies Computing is the company behind Postcoder; AutoPostcode is a modern, developer-first alternative using the same Royal Mail PAF data with transparent per-lookup pricing and a simpler REST API.
Is AutoPostcode a good Allies Computing alternative?
Yes — AutoPostcode is a strong Allies Computing alternative for modern teams. It serves the same Royal Mail PAF dataset (about 31 million UK delivery-point addresses across roughly 1.8 million postcodes) through a cleaner REST API, with per-website keys and transparent per-lookup pricing that Postcoder's credit bundles don't match.
How do AutoPostcode and Allies Computing compare?
| AutoPostcode | Allies Computing (Postcoder) | |
|---|---|---|
| UK data | Royal Mail PAF | Royal Mail PAF |
| API style | Modern REST + JSON | REST API |
| Pricing model | Per-lookup, no minimum | Credit bundles |
| Free trial | Yes — no card | Trial credits |
| No-code plugin | WooCommerce & WordPress | Plugins available |
| Per-website keys | Yes — agency friendly | Account-level keys |
Why do developer teams prefer AutoPostcode?
AutoPostcode is engineered for a fast developer experience: a single call to the UK address validation API returns PAF-verified JSON, with clear docs and per-website keys for multi-site setups. Teams comparing the wider market also read our best Loqate alternatives guide before choosing.
Head-to-head with Postcoder specifically
For a direct product-level breakdown, see AutoPostcode vs Postcoder, which compares pricing, data and integration effort side by side.
Frequently asked questions
Who are Allies Computing?
Allies Computing is the Norfolk-based company behind Postcoder, a long-standing UK address and postcode lookup service built on Royal Mail PAF data. AutoPostcode is a modern, developer-first alternative to their product.
Is AutoPostcode a good Allies Computing alternative?
Yes. AutoPostcode uses the same Royal Mail PAF dataset — around 31 million UK addresses across roughly 1.8 million postcodes — but adds a simpler REST API, transparent per-lookup pricing and no minimum spend, which suits modern developer teams.
Do AutoPostcode and Allies Computing use the same data?
Both rely on official Royal Mail PAF data, so core UK address accuracy is comparable. The differences are in API design, pricing model, per-website key management and logging.
How does the pricing compare?
AutoPostcode uses transparent per-lookup pricing with no minimum spend and a free trial, whereas Postcoder from Allies Computing typically sells credit bundles. For many teams AutoPostcode works out cheaper.
Can developers integrate AutoPostcode quickly?
Yes — AutoPostcode exposes a single REST endpoint returning JSON, plus no-code WooCommerce and WordPress plugins, so both engineers and non-developers can go live fast.
Is there a free trial to compare them?
AutoPostcode offers a free trial with no card required, so you can benchmark data quality, speed and integration effort against Allies Computing's Postcoder before switching.
Ready to get started?
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