X402 Asset Match
X402 Asset Match: X402 Asset Match compares a challenge asset identifier with buyer-supported assets from bounded caller-supplied values without an external provider. Call X402 Asset Match before paying for or accepting an x402 or agent delivery assembled from caller-supplied challenge and result metadata. Returns contract-specific checks, normalized evidence, mismatch reasons, and an explicit acceptance or rejection status for X402 Asset Match as versioned deterministic JSON. Price: $0.001 USD…
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://api.delx.ai/api/v1/x402/x402-asset-match
| Category | Market data |
|---|---|
| Provider host | api.delx.ai |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.001 | 1260 ms |
Example input (from the provider)
{
"body": {
"asset": "USDC",
"supported_assets": [
"USDC"
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"properties": {
"body": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"asset": {
"description": "Asset supplied to X402 Asset Match; used only for this bounded calculation and processed in memory without retention.",
"maxLength": 8192,
"type": "string"
},
"supported_assets": {
"description": "Supported Assets supplied to X402 Asset Match; used only for this bounded calculation and processed in memory without retention.",
"items": {
"maxLength": 8192,
"type": "string"
},
"maxItems": 256,
"type": "array"
}
},
"required": [
"asset",
"supported_assets"
],
"type": "object"
},
"bodyType": {
"const": "json",
"type": "string"
},
"method": {
"const": "POST",
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"additionalProperties": true,
"description": "Versioned bounded first-party JSON result with input evidence; caller data is processed in memory and not retained.",
"properties": {
"evidence": {
"additionalProperties": true,
"properties": {
"external_calls": {
"type": "integer"
},
"input_sha256": {
"type": "string"
},
"retained": {
"type": "boolean"
}
},
"type": "object"
},
"operation": {
"type": "string"
},
"result": {
"additionalProperties": true,
"properties": {
"actual": {
"type": "string"
},
"matched": {
"type": "boolean"
},
"supported": {
"items": {
"type": "string"
},
"type": "array"
}
},
"type": "object"
},
"schema": {
"type": "string"
},
"status": {
"type": "string"
}
},
"type": "object"
}
},
"required": [
"input",
"output"
],
"type": "object"
}