Look up a UK postcode
Look up a UK postcode: coordinates, country, region, council, ward, parish, parliamentary constituency, and ONS/NHS area codes.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
1489 msmedian answer time
$0.001listed price per call
$0.001price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://postcode-api-production.up.railway.app/lookup/postcode
| Category | Everything else |
|---|---|
| Provider host | postcode-api-production.up.railway.app |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 6 from 4 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.001 | 1489 ms |
Example input (from the provider)
{
"body": {
"postcode": "SW1A 1AA"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"postcode": {
"description": "UK postcode to look up; spacing and case are normalised, e.g. 'SW1A 1AA'.",
"type": "string"
}
},
"required": [
"postcode"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"found": {
"type": "boolean"
},
"input": {
"type": "string"
},
"result": {
"properties": {
"admin_county": {
"type": [
"string",
"null"
]
},
"admin_district": {
"type": [
"string",
"null"
]
},
"admin_ward": {
"type": [
"string",
"null"
]
},
"ccg": {
"type": [
"string",
"null"
]
},
"codes": {
"type": "object"
},
"country": {
"type": "string"
},
"date_of_introduction": {
"type": [
"string",
"null"
]
},
"european_electoral_region": {
"type": [
"string",
"null"
]
},
"incode": {
"type": "string"
},
"latitude": {
"type": [
"number",
"null"
]
},
"longitude": {
"type": [
"number",
"null"
]
},
"lsoa": {
"type": [
"string",
"null"
]
},
"msoa": {
"type": [
"string",
"null"
]
},
"nuts": {
"type": [
"string",
"null"
]
},
"outcode": {
"type": "string"
},
"parish": {
"type": [
"string",
"null"
]
},
"parliamentary_constituency": {
"type": [
"string",
"null"
]
},
"postcode": {
"type": "string"
},
"primary_care_trust": {
"type": [
"string",
"null"
]
},
"quality": {
"type": "integer"
},
"region": {
"type": [
"string",
"null"
]
}
},
"type": "object"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}