Fetch up to 10 x402 discovery documents or service origins, extract paid resourc
Fetch up to 10 x402 discovery documents or service origins, extract paid resources, normalize USDC atomic amounts, and rank resources by price, scheme, network, tags, and service metadata. This deterministic endpoint does not call an upstream model. GET variant for agents, crawlers, and wallets that prefer query parameters over a JSON body. Pay up to $0.003 per request with x402 USDC on Base.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
719 msmedian answer time
$0.003listed price per call
$0.003price 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
GET https://gpt55.558686.xyz/v1/tools/x402-discovery-price-compare
| Category | Market data |
|---|---|
| Provider host | gpt55.558686.xyz |
| Networks | eip155:8453 |
| Payment schemes | exact, upto |
| 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 | $0.003 | 719 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"limit": 20,
"query": "quote",
"urls": [
"https://gpt55.558686.xyz"
]
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"additionalProperties": false,
"anyOf": [
{
"required": [
"urls"
]
},
{
"required": [
"origins"
]
},
{
"required": [
"discovery_urls"
]
}
],
"properties": {
"discovery_urls": {
"items": {
"maxLength": 2048,
"minLength": 1,
"type": "string"
},
"maxItems": 10,
"minItems": 1,
"type": "array"
},
"limit": {
"maximum": 100,
"minimum": 1,
"type": "integer"
},
"max_bytes": {
"maximum": 1048576,
"minimum": 4096,
"type": "integer"
},
"origins": {
"items": {
"maxLength": 2048,
"minLength": 1,
"type": "string"
},
"maxItems": 10,
"minItems": 1,
"type": "array"
},
"query": {
"maxLength": 120,
"type": "string"
},
"timeout_ms": {
"maximum": 12000,
"minimum": 1000,
"type": "integer"
},
"urls": {
"items": {
"maxLength": 2048,
"minLength": 1,
"type": "string"
},
"maxItems": 10,
"minItems": 1,
"type": "array"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": true,
"properties": {
"fetchedAt": {
"type": "string"
},
"ok": {
"type": "boolean"
},
"tool": {
"type": "string"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}