Compare current unsigned x402 quotes for 2–4 supplied API requests
Compare current unsigned x402 quotes for 2–4 supplied API requests. Return original challenges, native USDC prices on Base/Solana, advertised outputs and explicit fee, expiry and quality gaps. Identify lowest quoted amounts per network without claiming equivalent delivery or lowest total cost. No seller purchases, credentials or market-wide search. 0.005 USDC per complete comparison; unavailable or invalid candidate quotes are uncharged.
Not tested: has real-world effectsour last check, 2026-10-26
0 of 0checks answered this week
n/amedian answer time
$0.005listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://api.mekler.ai/v1/services/offers/compare-request-quotes
| Category | Market data |
|---|---|
| Provider host | api.mekler.ai |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"body": {
"candidates": [
{
"id": "markdown",
"method": "GET",
"url": "https://x402.shizu.me/markdown?url=https%3A%2F%2Fmekler.ai%2F"
},
{
"body": {
"url": "https://mekler.ai/"
},
"id": "readable-text",
"method": "POST",
"url": "https://true402.dev/api/v1/web-extract"
}
],
"request_id": "quote_comparison_example_001",
"task": "Compare quoted prices for extracting readable content from the Mekler homepage"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"candidates": {
"items": {
"additionalProperties": false,
"properties": {
"body": {
"anyOf": [
{
"additionalProperties": true,
"type": "object"
},
{
"type": "null"
}
]
},
"id": {
"pattern": "^[A-Za-z0-9_-]{1,40}$",
"type": "string"
},
"method": {
"default": "GET",
"enum": [
"GET",
"POST"
],
"type": "string"
},
"url": {
"format": "uri",
"maxLength": 2048,
"pattern": "^https://",
"type": "string"
}
},
"required": [
"id",
"url"
],
"type": "object"
},
"maxItems": 4,
"minItems": 2,
"type": "array"
},
"request_id": {
"pattern": "^[A-Za-z0-9_-]{16,64}$",
"type": "string"
},
"task": {
"maxLength": 500,
"minLength": 1,
"type": "string"
}
},
"required": [
"request_id",
"task",
"candidates"
],
"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": {
"additionalProperties": false,
"properties": {
"limitations": {
"items": {
"type": "string"
},
"type": "array"
},
"observations": {
"items": {
"properties": {
"id": {
"type": "string"
},
"observed_at": {
"type": "string"
},
"offers": {
"items": {
"properties": {
"additional_fees": {
"type": "null"
},
"network": {
"type": "string"
},
"quoted_usdc": {
"type": "string"
},
"total_cost_usdc": {
"type": "null"
}
},
"required": [
"network",
"quoted_usdc",
"additional_fees",
"total_cost_usdc"
],
"type": "object"
},
"type": "array"
}
},
"required": [
"id",
"observed_at",
"offers"
],
"type": "object"
},
"type": "array"
},
"observed_at": {
"type": "string"
},
"price_groups": {
"items": {
"properties": {
"equivalent_outputs_verified": {
"type": "boolean"
},
"lowest_quoted_candidate_ids": {
"items": {
"type": "string"
},
"type": "array"
},
"lowest_total_cost_candidate_id": {
"type": "null"
},
"network": {
"type": "string"
}
},
"required": [
"network",
"lowest_quoted_candidate_ids",
"lowest_total_cost_candidate_id",
"equivalent_outputs_verified"
],
"type": "object"
},
"type": "array"
},
"scope": {
"type": "string"
},
"status": {
"const": "ok",
"type": "string"
},
"task": {
"type": "string"
}
},
"required": [
"status",
"task",
"observed_at",
"observations",
"price_groups",
"scope",
"limitations"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}