UK Geography Codes
Official ONS lookup tables (2025 wards and local authorities, 2024 constituencies, 2021 census small areas) from the Open Geography Portal.
- cost
- Free every endpoint, within the daily allowance
- after that
- from $0.001 / call · card or USDC
- endpoints
- 9
No signup needed over MCP: 100 free calls a day, or 500 with a free key.
Ward Free
A ward's local authority, county/unitary, region, country and Westminster constituency.
- cost
- Free then $0.001 / call
- MCP tool
- uk-geography__ward
- method
- GET
Free up to 100 calls a day over MCP (500 with a free key), then $0.001 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/uk-geography/ward
| Param | Type | Description |
|---|---|---|
| code | string | ONS ward code |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/uk-geography/ward?code=E05009292" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/uk-geography/ward?code=E05009292"
by fourzerotwo
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Local authority Free
A local authority district's county/unitary, region and country, with all its wards and constituencies.
- cost
- Free then $0.001 / call
- MCP tool
- uk-geography__local-authority
- method
- GET
Free up to 100 calls a day over MCP (500 with a free key), then $0.001 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/uk-geography/local-authority
| Param | Type | Description |
|---|---|---|
| code | string | ONS local authority district code |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/uk-geography/local-authority?code=E06000001" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/uk-geography/local-authority?code=E06000001"
by fourzerotwo
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Westminster constituency Free
The wards (split wards flagged) and local authorities making up a 2024 Westminster constituency.
- cost
- Free then $0.001 / call
- MCP tool
- uk-geography__constituency
- method
- GET
Free up to 100 calls a day over MCP (500 with a free key), then $0.001 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/uk-geography/constituency
| Param | Type | Description |
|---|---|---|
| code | string | ONS constituency code |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/uk-geography/constituency?code=E14001463" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/uk-geography/constituency?code=E14001463"
by fourzerotwo
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LSOA Free
The ward and local authority for a 2021 Lower Layer Super Output Area.
- cost
- Free then $0.001 / call
- MCP tool
- uk-geography__lsoa
- method
- GET
Free up to 100 calls a day over MCP (500 with a free key), then $0.001 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/uk-geography/lsoa
| Param | Type | Description |
|---|---|---|
| code | string | ONS LSOA code |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/uk-geography/lsoa?code=E01012152" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/uk-geography/lsoa?code=E01012152"
by fourzerotwo
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MSOA Free
The wards and local authority for a 2021 Middle Layer Super Output Area.
- cost
- Free then $0.001 / call
- MCP tool
- uk-geography__msoa
- method
- GET
Free up to 100 calls a day over MCP (500 with a free key), then $0.001 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/uk-geography/msoa
| Param | Type | Description |
|---|---|---|
| code | string | ONS MSOA code |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/uk-geography/msoa?code=E02002489" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/uk-geography/msoa?code=E02002489"
by fourzerotwo
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Parish Free
The ward(s) and local authority for a civil parish.
- cost
- Free then $0.001 / call
- MCP tool
- uk-geography__parish
- method
- GET
Free up to 100 calls a day over MCP (500 with a free key), then $0.001 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/uk-geography/parish
| Param | Type | Description |
|---|---|---|
| code | string | ONS parish code |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/uk-geography/parish?code=E04000253" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/uk-geography/parish?code=E04000253"
by fourzerotwo
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Region Free
The local authority districts in an English region.
- cost
- Free then $0.001 / call
- MCP tool
- uk-geography__region
- method
- GET
Free up to 100 calls a day over MCP (500 with a free key), then $0.001 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/uk-geography/region
| Param | Type | Description |
|---|---|---|
| code | string | ONS region code |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/uk-geography/region?code=E12000001" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/uk-geography/region?code=E12000001"
by fourzerotwo
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County or unitary authority Free
The local authority districts in a county or unitary authority.
- cost
- Free then $0.001 / call
- MCP tool
- uk-geography__county
- method
- GET
Free up to 100 calls a day over MCP (500 with a free key), then $0.001 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/uk-geography/county
| Param | Type | Description |
|---|---|---|
| code | string | ONS county/unitary code |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/uk-geography/county?code=E10000016" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/uk-geography/county?code=E10000016"
by fourzerotwo
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Find a code by name Free
Search ward, local-authority, county, region, constituency or parish names for their ONS codes.
- cost
- Free then $0.001 / call
- MCP tool
- uk-geography__search
- method
- GET
Free up to 100 calls a day over MCP (500 with a free key), then $0.001 per call by card credit or USDC. Free key · Pay by card
GET https://fourzerotwo.si/v1/uk-geography/search
| Param | Type | Description |
|---|---|---|
| name | string | Name or part of it |
| type? | string | ward (default) | local-authority | county | region | constituency | parish |
# free: send a free key from https://fourzerotwo.si/free curl -H "X-API-Key: fzt_…" "https://fourzerotwo.si/v1/uk-geography/search?name=Hartlepool" # no key: returns 402 with the price, for x402 agents curl -i "https://fourzerotwo.si/v1/uk-geography/search?name=Hartlepool"
by fourzerotwo
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Source: Office for National Statistics licensed under the Open Government Licence v.3.0.