Japan Postal Lookup
Japanese postal-code lookup and reverse lookup. Keywords: Japanese postal lookup, Japan Post postal code, postal code reverse lookup, 日本郵便番号検索. Use a postal code or prefecture/city/ward/town components against the local Japan Post snapshot. / 通过邮编或都道府县、市区町村、区、町名字段，在本地 Japan Post 数据中进行日本邮编反查。
Offering
- Provider
- api.jpverify.com
- Method
- POST
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Location And Travel
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://api.jpverify.com/jp-address/postal-lookup- MIME type
- Not provided
- First seen
- 2026-10-16T01:50:10.647Z
- Last seen
- Tags
- japan, postal-code, lookup, reverse-lookup, japan-post
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.001 USDC
Atomic price: 1000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
{
"scheme": "exact",
"network": "eip155:8453",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "1000",
"payTo": "0xe4A4E5B226bE71e7b6eD523bc7a91089c770572F"
}
]Observed health
- Status
- Reachable
- Latest latency
- 530 ms
- Average latency
- 926 ms
- HTTP status
- 405
- Last checked
- Reachability
- 100% over 14 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"description": "Provide postal_code or one or more administrative components. / postal_codeまたは行政区・町域の項目を指定します。",
"properties": {
"city": {
"description": "City component. / 市区町村。",
"type": [
"string",
"null"
]
},
"county": {
"description": "County component when applicable. / 郡。",
"type": [
"string",
"null"
]
},
"max_results": {
"default": 10,
"description": "Maximum returned candidates. / 返却候補数の上限。",
"maximum": 50,
"minimum": 1,
"type": "integer"
},
"postal_code": {
"description": "Japan postal code to expand or verify. / 照合・展開する日本郵便番号。",
"pattern": "^\\d{3}-?\\d{4}$",
"type": [
"string",
"null"
]
},
"prefecture": {
"description": "Prefecture component. / 都道府県。",
"type": [
"string",
"null"
]
},
"town": {
"description": "Town or chome component. / 町域・町名。",
"type": [
"string",
"null"
]
},
"ward": {
"description": "Ward component. / 区。",
"type": [
"string",
"null"
]
}
},
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}Output schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"description": "Provide postal_code or one or more administrative components. / postal_codeまたは行政区・町域の項目を指定します。",
"properties": {
"city": {
"description": "City component. / 市区町村。",
"type": [
"string",
"null"
]
},
"county": {
"description": "County component when applicable. / 郡。",
"type": [
"string",
"null"
]
},
"max_results": {
"default": 10,
"description": "Maximum returned candidates. / 返却候補数の上限。",
"maximum": 50,
"minimum": 1,
"type": "integer"
},
"postal_code": {
"description": "Japan postal code to expand or verify. / 照合・展開する日本郵便番号。",
"pattern": "^\\d{3}-?\\d{4}$",
"type": [
"string",
"null"
]
},
"prefecture": {
"description": "Prefecture component. / 都道府県。",
"type": [
"string",
"null"
]
},
"town": {
"description": "Town or chome component. / 町域・町名。",
"type": [
"string",
"null"
]
},
"ward": {
"description": "Ward component. / 区。",
"type": [
"string",
"null"
]
}
},
"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": {
"candidate_count": {
"type": "integer"
},
"data_version": {
"type": [
"string",
"null"
]
},
"matches": {
"items": {
"properties": {
"city": {
"type": "string"
},
"confidence": {
"type": "number"
},
"kana": {
"type": [
"string",
"null"
]
},
"postal_code": {
"type": "string"
},
"prefecture": {
"type": "string"
},
"source": {
"type": "string"
},
"town": {
"type": "string"
}
},
"type": "object"
},
"type": "array"
},
"postal_code_match": {
"type": [
"boolean",
"null"
]
},
"query": {
"type": "object"
},
"record_count": {
"type": "integer"
},
"status": {
"type": "string"
},
"type": "object",
"warnings": {
"items": {
"type": "string"
},
"type": "array"
}
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}