curl --request POST \
--url https://api.iotools.cloud/v1/tool/x509-certificate-parser \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"pemInput": "-----BEGIN CERTIFICATE-----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\n-----END CERTIFICATE-----",
"referenceTime": "2024-01-01T00:00:00Z"
}
'{
"tool": "x509-certificate-parser",
"tool_version": "1.0.1",
"outputs": {
"warnings": [
{
"severity": "Warning",
"message": "This is a self-signed certificate (Subject = Issuer)."
}
],
"type": [
{
"property": "Type",
"value": "X.509 Certificate"
}
],
"subject": [
{
"field": "Country (C)",
"value": "US"
},
{
"field": "Organization (O)",
"value": "Internet Security Research Group"
},
{
"field": "Common Name (CN)",
"value": "ISRG Root X1"
}
],
"issuer": [
{
"field": "Country (C)",
"value": "US"
},
{
"field": "Organization (O)",
"value": "Internet Security Research Group"
},
{
"field": "Common Name (CN)",
"value": "ISRG Root X1"
}
],
"validity": [
{
"field": "Not Before",
"value": "2015-06-04T11:04:38Z"
},
{
"field": "Not After",
"value": "2035-06-04T11:04:38Z"
},
{
"field": "Status",
"value": "Valid (expires in 4172d 11h)"
}
],
"details": [
{
"property": "Version",
"value": "v3"
},
{
"property": "Serial Number",
"value": "00:82:10:CF:B0:D2:40:E3:59:44:63:E0:BB:63:82:8B:00"
},
{
"property": "Signature Algorithm",
"value": "SHA-256 with RSA"
},
{
"property": "Public Key Algorithm",
"value": "RSA"
},
{
"property": "Public Key Size",
"value": "4096 bits"
},
{
"property": "Public Key Exponent",
"value": "65537"
},
{
"property": "Self-Signed",
"value": "Yes"
}
],
"extensions": [
{
"extension": "Key Usage (critical)",
"value": "Certificate Sign, CRL Sign"
},
{
"extension": "Basic Constraints (critical)",
"value": "CA: TRUE"
},
{
"extension": "Subject Key Identifier",
"value": "79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E"
}
],
"fingerprints": [
{
"algorithm": "SHA-256",
"fingerprint": "96:BC:EC:06:26:49:76:F3:74:60:77:9A:CF:28:C5:A7:CF:E8:A3:C0:AA:E1:1A:8F:FC:EE:05:C0:BD:DF:08:C6"
},
{
"algorithm": "SHA-1",
"fingerprint": "CA:BD:2A:79:A1:07:6A:31:F2:1D:25:36:35:CB:03:9D:43:29:A5:E8"
},
{
"algorithm": "SHA-512",
"fingerprint": "3B:40:F2:7E:82:83:23:F5:B9:1F:89:09:88:3A:78:A2:1C:86:55:17:61:F2:7B:38:02:9F:AA:EC:14:AF:5B:7A:A9:6F:B9:F9:CC:93:EE:20:1B:5E:B1:D0:FE:F1:7B:29:07:47:E8:B8:39:D2:E4:9A:8F:36:C5:EB:F3:C7:C9:10"
}
]
},
"credits_used": 3,
"credits_remaining": null
}X.509 Certificate Parser
Parse a PEM-encoded X.509 certificate or certificate signing request (CSR) — subject, issuer, validity window, serial number, signature/public-key algorithms, extensions (SANs, key usage, basic constraints…), CSR signature verification, and SHA-256/SHA-1/SHA-512 fingerprints. Parsed entirely in your browser; nothing is uploaded.
curl --request POST \
--url https://api.iotools.cloud/v1/tool/x509-certificate-parser \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"pemInput": "-----BEGIN CERTIFICATE-----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\n-----END CERTIFICATE-----",
"referenceTime": "2024-01-01T00:00:00Z"
}
'{
"tool": "x509-certificate-parser",
"tool_version": "1.0.1",
"outputs": {
"warnings": [
{
"severity": "Warning",
"message": "This is a self-signed certificate (Subject = Issuer)."
}
],
"type": [
{
"property": "Type",
"value": "X.509 Certificate"
}
],
"subject": [
{
"field": "Country (C)",
"value": "US"
},
{
"field": "Organization (O)",
"value": "Internet Security Research Group"
},
{
"field": "Common Name (CN)",
"value": "ISRG Root X1"
}
],
"issuer": [
{
"field": "Country (C)",
"value": "US"
},
{
"field": "Organization (O)",
"value": "Internet Security Research Group"
},
{
"field": "Common Name (CN)",
"value": "ISRG Root X1"
}
],
"validity": [
{
"field": "Not Before",
"value": "2015-06-04T11:04:38Z"
},
{
"field": "Not After",
"value": "2035-06-04T11:04:38Z"
},
{
"field": "Status",
"value": "Valid (expires in 4172d 11h)"
}
],
"details": [
{
"property": "Version",
"value": "v3"
},
{
"property": "Serial Number",
"value": "00:82:10:CF:B0:D2:40:E3:59:44:63:E0:BB:63:82:8B:00"
},
{
"property": "Signature Algorithm",
"value": "SHA-256 with RSA"
},
{
"property": "Public Key Algorithm",
"value": "RSA"
},
{
"property": "Public Key Size",
"value": "4096 bits"
},
{
"property": "Public Key Exponent",
"value": "65537"
},
{
"property": "Self-Signed",
"value": "Yes"
}
],
"extensions": [
{
"extension": "Key Usage (critical)",
"value": "Certificate Sign, CRL Sign"
},
{
"extension": "Basic Constraints (critical)",
"value": "CA: TRUE"
},
{
"extension": "Subject Key Identifier",
"value": "79:B4:59:E6:7B:B6:E5:E4:01:73:80:08:88:C8:1A:58:F6:E9:9B:6E"
}
],
"fingerprints": [
{
"algorithm": "SHA-256",
"fingerprint": "96:BC:EC:06:26:49:76:F3:74:60:77:9A:CF:28:C5:A7:CF:E8:A3:C0:AA:E1:1A:8F:FC:EE:05:C0:BD:DF:08:C6"
},
{
"algorithm": "SHA-1",
"fingerprint": "CA:BD:2A:79:A1:07:6A:31:F2:1D:25:36:35:CB:03:9D:43:29:A5:E8"
},
{
"algorithm": "SHA-512",
"fingerprint": "3B:40:F2:7E:82:83:23:F5:B9:1F:89:09:88:3A:78:A2:1C:86:55:17:61:F2:7B:38:02:9F:AA:EC:14:AF:5B:7A:A9:6F:B9:F9:CC:93:EE:20:1B:5E:B1:D0:FE:F1:7B:29:07:47:E8:B8:39:D2:E4:9A:8F:36:C5:EB:F3:C7:C9:10"
}
]
},
"credits_used": 3,
"credits_remaining": null
}Authorizations
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
Response
Tool output
Show child attributes
Show child attributes
The tool's slug, echoing the {slug} in the request path.
Output-contract version for this tool.
Credits this call consumed, after any settlement refund. 0 when metering is disabled.
Credits left in the current monthly allowance, or null when metering is disabled.
Correlation id, also sent as x-request-id.
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