Answer the question in front of you
Paste the address from the order, confirm the place and format, and move on. There is no account, no credit balance and no implementation project before the first lookup.
COMPARE · POSTCODEDOG VS MELISSA
PostcodeDog vs Melissa Lookups
Quick postal answers, without a data-quality project.
Melissa builds address verification and data-quality tools for enterprises. PostcodeDog is a focused postal lookup: paste a foreign address, get the place and format, check a batch, or connect an agent — free and without an account.
SIDE BY SIDE
What changes with PostcodeDog
| Capability | UsPostcodeDog | Melissa Lookups | Why it matters |
|---|---|---|---|
| Scope | Post code lookup and format checks | Address verification and data-quality suite | Start with the question, not the platform. |
| Access | Free, no account, no credits | Lookups uses credits for batch and higher-volume work | A quick check before a label stays free. |
| Batch | Paste up to 50 rows, review, export CSV | Batch tools available with a paid Lookups account | No setup or credit purchase to clear a queue. |
| Developer access | Free JSON API and MCP server, no key | Developer APIs are part of a commercial data-quality offering | Ship a lookup without a contract. |
| Languages | 13 interface languages | Lookups in 8 language editions | More teams can work in their own language. |
| Workflow | Platform and carrier pages for orders, labels and warehouses | Data-quality project workflow | The answer sits next to the task. |
WHERE POSTCODEDOG WINS
A focused lookup, free for the whole team.
Batch without procurement
Fifty rows per run in the browser, with valid, ambiguous and missing statuses and a CSV export. The operations team can start without a contract.
Free for humans and agents
The JSON API and MCP server are part of the free product, not an enterprise add-on. Support, checkout and AI clients all reach the same lookup.
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 Melissa Lookups
Melissa is a data-quality company with global address verification, lookups, batch cleansing and APIs. Melissa Lookups offers address search and post code maps, with credits for batch and higher-volume work.
PostcodeDog is focused by design: a post code lookup and format check for 82 countries, with a free batch page, API and MCP server.
When PostcodeDog is the better fit
- 01You need a quick post code check, not a data-quality project.
- 02You want batch checks without buying credits.
- 03You want a free API and MCP server for internal tools.
- 04Your support team works across several languages.
Can PostcodeDog check international post codes?
Yes. It covers 82 countries and detects the country from a pasted address, so the same box works for a German PLZ, a UK outcode or a Japanese 〒.
Is PostcodeDog free?
Yes, including batch checks, the JSON API and the MCP server.
Can I check multiple codes?
Yes, up to 50 rows per batch, with CSV export.
Can I use it from an AI client?
Yes. The MCP server is at /mcp and needs no account.
Compare
Start with the lookup, not the project.
Paste an address or try 90210, SW1A or 100-0001. No account needed.