Give Claude a postal tool
Connect the MCP server and Claude can look up a code, validate a format or search for a place instead of relying on memory.
COMPARE · POSTCODEDOG VS CLAUDE
PostcodeDog vs Claude
The postal tool your AI assistant can call.
Claude is a general AI assistant with native MCP support. PostcodeDog is the postal lookup Claude can call: 82 countries, place records, formats, batch and a free MCP server.
SIDE BY SIDE
What changes with PostcodeDog
| Capability | UsPostcodeDog | Claude | Why it matters |
|---|---|---|---|
| Role | Postal lookup and format check | General AI assistant | The assistant and the lookup do different jobs. |
| Output | Place, region and format from a postal record | A conversational answer | A checkable record is easier to verify before a label. |
| Batch | Paste up to 50 rows, review, export CSV | One conversation at a time | Clear a label queue in one pass. |
| Integration | MCP server at /mcp and a free JSON API | MCP client | Connect the lookup to the assistant in minutes. |
| Languages | 13 interface languages | Assistant languages | Local teams can work in their own language. |
WHERE POSTCODEDOG WINS
A natural fit for an MCP workflow.
Check the record, not the prose
Every answer points to a place page with the region, country and format, so a person can verify the result before a label is printed.
Batch outside the chat
Fifty rows per run in the browser, with valid, ambiguous and missing statuses and a CSV export. The chat stays for questions; the batch page handles the queue.
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 Claude
Claude is an AI assistant from Anthropic, used for writing, analysis and agentic workflows, with MCP support for connecting tools.
PostcodeDog is a postal lookup with an MCP server and JSON API, so Claude can check a code instead of guessing.
When PostcodeDog is the better fit
- 01You use Claude with MCP tools.
- 02You need a postal answer you can verify.
- 03You are clearing a batch before a label run.
- 04Your team works across several languages.
Does PostcodeDog replace Claude?
No. Claude is the assistant; PostcodeDog is a postal tool it can call through MCP. The lookup also works on its own in the browser.
How do I connect PostcodeDog to Claude?
Use the MCP install guide and point Claude at /mcp. The JSON API is available for custom integrations.
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
Give Claude a postal lookup.
Try the lookup, then connect the MCP server in minutes.