Check beyond one country
The next order may leave Spain. The same box handles 82 countries and keeps the local format in view.
COMPARE · POSTCODEDOG VS CORREOS
PostcodeDog vs Correos
Correos covers Spain. PostcodeDog covers 82 countries in one lookup.
Correos' postcode search covers Spanish addresses. PostcodeDog covers 82 countries with one lookup, batch checks, a free API and MCP.
SIDE BY SIDE
What changes with PostcodeDog
| Capability | UsPostcodeDog | Correos | Why it matters |
|---|---|---|---|
| Coverage | 82 countries in one lookup | Spain only | Cross-border orders rarely stop at one market. |
| Input | Paste an address, city or code; country and format detected | Official national search | Use the text the customer sent. |
| Formats | US ZIP, UK outcode, Japan 7-digit and more | Spain format | The destination sets the format. |
| Batch | Paste up to 50 rows, review, export CSV | One lookup at a time | Clear a label queue in one pass. |
| AI agents | Built-in MCP server at /mcp | — | Connect the lookup to an agent. |
WHERE POSTCODEDOG WINS
A national check inside a global lookup.
Paste, do not retype
Addresses arrive as one messy line; the parser finds the country, city and code.
One tool for the whole team
Support uses the box, operations uses the batch page, developers use the API and agents use MCP.
TRY IT
Try the difference
Paste a full address, a city or a post code. Country and format are detected.
Free. No account, no API key.THE LOOP
Paste → resolve → verify
The same three steps work whether the address is a US ZIP, a UK outcode or a Japanese 〒.
- 01
Paste what you have
A full address, a city, or just a code. The parser accepts the whole line.
- 02
Confirm the place and format
Country, region and post code format are shown together, with nearby codes for a second option.
- 03
Send it to the label
Copy the verified code or export the batch. Platform and carrier pages keep local rules in view.
About
About Correos
Correos' postcode search covers Spanish addresses.
It is an official national postcode service for its own country.
When PostcodeDog is the better fit
- 01Your destinations include Spain and at least one other country.
- 02You want a free batch check before a label run.
- 03You need an API or MCP server without an integration project.
- 04Your team works in several languages.
Does PostcodeDog cover Spain?
Yes. Spain is one of 82 countries in the lookup.
Is PostcodeDog affiliated with Correos?
No. Correos remains the official source for its own country; PostcodeDog is an independent lookup.
Is PostcodeDog free?
Yes. Lookups, batch checks, the JSON API and the MCP server are free and need no account.
Can I use it in an AI agent?
Yes. The MCP server is at /mcp, and the JSON API is free to call.
Compare
Try PostcodeDog instead of Correos.
Try 90210, SW1A or 100-0001. No signup, no credit card.