JSON Web Token (JWT) decoder — parse an unverified compact JWS header and claims and evalu
JSON Web Token (JWT) decoder — parse an unverified compact JWS header and claims and evaluate advisory NumericDate times without signature verification or URL fetching.
5000 (raw units)
price
4
calls / 30d
3
unique payers
2026-09-15
updated
Provider
artifact-inspector.use.x402atlas.com · discovered, not yet claimed by its owner
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "5000",
"maxTimeoutSeconds": 300
},
{
"scheme": "exact",
"network": "eip155:137",
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"amount": "5000",
"maxTimeoutSeconds": 300
},
{
"scheme": "exact",
"network": "eip155:42161",
"payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"amount": "5000",
"maxTimeoutSeconds": 300
}
]Output schema
{
"bazaar": {
"category": "utilities",
"info": {
"input": {
"body": {
"at_time": "2024-06-01T12:00:00Z",
"token": "eyJhbGciOiJIUzI1NiIsImtpZCI6InN5bnRoZXRpYy1leGFtcGxlIiwidHlwIjoiSldUIn0.eyJhdWQiOiJhcnRpZmFjdC1pbnNwZWN0b3IiLCJleHAiOjE3MTcyODY0MDAsImlhdCI6MTcxNzIwMDAwMCwiaXNzIjoieDQwMkF0bGFzIHN5bnRoZXRpYyIsIm5iZiI6MTcxNzIwMDAwMCwic3ViIjoiYWdlbnQtZGVtbyJ9.c3ludGhldGljLW5vdC1hLXJlYWwtc2lnbmF0dXJl"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"algorithm_version": "jwt-unverified-decode-v1",
"at_time": "2024-06-01T12:00:00Z",
"claims": {
"aud": "artifact-inspector",
"exp": 1717286400,
"iat": 1717200000,
"iss": "x402Atlas synthetic",
"nbf": 1717200000,
"sub": "agent-demo"
},
"header": {
"alg": "HS256",
"kid": "synthetic-example",
"typ": "JWT"
},
"operation": "jwt-decode",
"signature_bytes": 30,
"signature_status": "not_verified",
"temporal": {
"expiration": {
"status": "valid",
"value": 1717286400
},
"issued_at": {
"status": "past_or_present",
"value": 1717200000
},
"not_before": {
"status": "active",
"value": 1717200000
}
},
"warnings": [
"JWT signature and claims were decoded but not verified; treat all values as untrusted."
]
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"at_time": {
"description": "Fixed RFC3339 instant for advisory NumericDate comparisons",
"format": "date-time",
"type": "string"
},
"token": {
"description": "One compact three-segment JWS; decoded only and never verified",
"maxLength": 32768,
"minLength": 3,
"pattern": "^[A-Za-z0-9_-]+\\.[A-Za-z0-9_-]+\\.[A-Za-z0-9_-]*$",
"type": "string"
}
},
"required": [
"token",
"at_time"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": false,
"properties": {
"_atlas": {
"additionalProperties": false,
"description": "Atlas documentation and related-route metadata added after deployment",
"properties": {
"docs": {
"description": "Documentation URL for this bridge",
"format": "uri",
"maxLength": 512,
"type": "string"
},
"related": {
"description": "Bounded related Atlas routes",
"items": {
"additionalProperties": false,
"description": "One related Atlas route",
"properties": {
"bridge": {
"description": "Related bridge name",
"maxLength": 64,
"type": "string"
},
"docs": {
"description": "Related bridge documentation URL",
"format": "uri",
"maxLength": 512,
"type": "string"
},
"summary": {
"description": "Short capability summary",
"maxLength": 256,
"type": "string"
},
"url": {
"description": "Related route URL",
"format": "uri",
"maxLength": 512,
"type": "string"
}
},
"required": [
"bridge",
"url",
"docs",
"summary"
],
"type": "object"
},
"maxItems": 3,
"type": "array"
}
},
"required": [
"docs"
],
"type": "object"
},
"algorithm_version": {
"const": "jwt-unverified-decode-v1",
"description": "Pinned strict decode contract",
"type": "string"
},
"at_time": {
"description": "Applied advisory comparison instant",
"format": "date-time",
"type": "string"
},
"claims": {
"additionalProperties": true,
"description": "Decoded untrusted JWT claims with JSON numbers preserved",
"type": "object"
},
"header": {
"additionalProperties": true,
"description": "Decoded untrusted JOSE header; arbitrary members are preserved",
"type": "object"
},
"operation": {
"const": "jwt-decode",
"description": "Stable operation name",
"type": "string"
},
"signature_bytes": {
"description": "Decoded signature segment size; not a validity result",
"maximum": 32768,
"minimum": 0,
"type": "integer"
},
"signature_status": {
"const": "not_verified",
"description": "Prominent statement that no signature check occurred",
"type": "string"
},
"temporal": {
"additionalProperties": false,
"description": "Advisory exp, nbf, and iat comparisons against at_time",
"properties": {
"expiration": {
"additionalProperties": false,
"description": "One advisory NumericDate comparison",
"properties": {
"status": {
"description": "Advisory comparison status only",
"enum": [
"absent",
"invalid",
"valid",
"expired",
"active",
"not_yet_active",
"past_or_present",
"future"
],
"type": "string"
},
"value": {
"description": "Integral NumericDate or null when absent/invalid",
"type": [
"integer",
"null"
]
}
},
"required": [
"status",
"value"
],
"type": "object"
},
"issued_at": {
"additionalProperties": false,
"description": "One advisory NumericDate comparison",
"properties": {
"status": {
"description": "Advisory comparison status only",
"enum": [
"absent",
"invalid",
"valid",
"expired",
"active",
"not_yet_active",
"past_or_present",
"future"
],
"type": "string"
},
"value": {
"description": "Integral NumericDate or null when absent/invalid",
"type": [
"integer",
"null"
]
}
},
"required": [
"status",
"value"
],
"type": "object"
},
"not_before": {
"additionalProperties": false,
"description": "One advisory NumericDate comparison",
"properties": {
"status": {
"description": "Advisory comparison status only",
"enum": [
"absent",
"invalid",
"valid",
"expired",
"active",
"not_yet_active",
"past_or_present",
"future"
],
"type": "string"
},
"value": {
"description": "Integral NumericDate or null when absent/invalid",
"type": [
"integer",
"null"
]
}
},
"required": [
"status",
"value"
],
"type": "object"
}
},
"required": [
"expiration",
"not_before",
"issued_at"
],
"type": "object"
},
"warnings": {
"description": "Unverified-token, URL, critical-header, NumericDate, and deterministic overflow-summary warnings",
"items": {
"description": "Human-readable warning",
"type": "string"
},
"maxItems": 40,
"type": "array"
}
},
"required": [
"operation",
"algorithm_version",
"at_time",
"signature_status",
"header",
"claims",
"signature_bytes",
"temporal",
"warnings"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
},
"tags": [
"jwt-decode",
"json-web-token",
"jws",
"rfc7519",
"numericdate"
]
}
}Use it
curl
curl "https://artifact-inspector.use.x402atlas.com/jwt" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://artifact-inspector.use.x402atlas.com/jwt");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://artifact-inspector.use.x402atlas.com/jwt")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/3450.json, and this resource appears in /discovery/resources and /discovery/search.