x402engine.app
Search-augmented LLM — answers grounded in real-time web search with citations
Offering
- Provider
- x402engine.app
- Method
- POST
- Offering type
- Api Endpoint
- Transport type
- http
- Category
- Web Search Research
- Delivery
- Not provided
- Pricing model
- Not provided
- x402 version
- 2
Endpoint context
- URL
https://x402engine.app/api/llm/perplexity- MIME type
- Not provided
- First seen
- 2026-10-16T01:58:48.885Z
- Last seen
- Tags
- None supplied
Payment pricing
x402 payment terms are the authoritative price for calling this endpoint.
- Payment option 1
- 0.045331 USDC
Atomic price: 45331 · Network: eip155:8453 · Asset: USDC · Scheme: exact - Payment option 2
- 45331000000000000 atomic units
Atomic price: 45331000000000000 · Network: eip155:4326 · Asset: 0xFAfDdbb3FC7688494971a79cc65DCa3EF82079E7 · Scheme: exact - Payment option 3
- 0.045331 USDC
Atomic price: 45331 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
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"payTo": "0x7dd5Be069f2d2eAd75eC7C3423B116fF043c2629"
},
{
"scheme": "exact",
"network": "eip155:4326",
"asset": "0xFAfDdbb3FC7688494971a79cc65DCa3EF82079E7",
"amount": "45331000000000000",
"payTo": "0x7dd5Be069f2d2eAd75eC7C3423B116fF043c2629"
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"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "45331",
"payTo": "Gzehfseq1k9AcHFSoV7qHmDGQx92nLMw78XXdqVWQQWa"
}
]Observed health
- Status
- Healthy
- Latest latency
- 135 ms
- Average latency
- 366 ms
- HTTP status
- 204
- Last checked
- Reachability
- 100% over 14 checks
Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.
Input schema
{
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"frequency_penalty": {
"description": "Model-supported frequency_penalty; see /docs/llm-capabilities.md.",
"type": "number"
},
"max_completion_tokens": {
"description": "Alias for total output budget; bounded by model maxOutputTokens.",
"type": "integer"
},
"max_tokens": {
"description": "Total output budget, including reasoning. Use this or max_completion_tokens.",
"example": 1024,
"type": "integer"
},
"messages": {
"description": "Text or model-supported multimodal messages; assistant tool calls may have null content",
"items": {
"additionalProperties": false,
"anyOf": [
{
"required": [
"content"
]
},
{
"required": [
"tool_calls"
]
}
],
"properties": {
"annotations": {
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"type": "object"
},
"type": "array"
},
"cache_control": {
"type": "object"
},
"content": {
"oneOf": [
{
"type": "string"
},
{
"type": "null"
},
{
"items": {
"additionalProperties": true,
"properties": {
"type": {
"enum": [
"text",
"image_url"
],
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
},
"maxItems": 100,
"minItems": 1,
"type": "array"
}
]
},
"name": {
"type": "string"
},
"reasoning": {
"type": "string"
},
"reasoning_details": {
"items": {
"type": "object"
},
"type": "array"
},
"refusal": {
"type": [
"string",
"null"
]
},
"role": {
"enum": [
"system",
"developer",
"user",
"assistant",
"tool"
],
"type": "string"
},
"tool_call_id": {
"type": "string"
},
"tool_calls": {
"items": {
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},
"type": "array"
}
},
"required": [
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],
"type": "object"
},
"maxItems": 100,
"minItems": 1,
"type": "array"
},
"presence_penalty": {
"description": "Model-supported presence_penalty; see /docs/llm-capabilities.md.",
"type": "number"
},
"stream": {
"description": "Return live OpenAI-compatible SSE after payment settlement.",
"type": "boolean"
},
"stream_options": {
"description": "Optional include_usage boolean; usage is always requested upstream.",
"type": "object"
},
"temperature": {
"description": "Model-supported temperature; see /docs/llm-capabilities.md.",
"type": "number"
},
"top_k": {
"description": "Model-supported top_k; see /docs/llm-capabilities.md.",
"type": "integer"
},
"top_p": {
"description": "Model-supported top_p; see /docs/llm-capabilities.md.",
"type": "number"
}
},
"required": [
"messages"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"bodyType",
"body",
"method"
],
"type": "object"
}Output schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"frequency_penalty": {
"description": "Model-supported frequency_penalty; see /docs/llm-capabilities.md.",
"type": "number"
},
"max_completion_tokens": {
"description": "Alias for total output budget; bounded by model maxOutputTokens.",
"type": "integer"
},
"max_tokens": {
"description": "Total output budget, including reasoning. Use this or max_completion_tokens.",
"example": 1024,
"type": "integer"
},
"messages": {
"description": "Text or model-supported multimodal messages; assistant tool calls may have null content",
"items": {
"additionalProperties": false,
"anyOf": [
{
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},
{
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"properties": {
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"cache_control": {
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"content": {
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{
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{
"items": {
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]
},
"name": {
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"reasoning": {
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"reasoning_details": {
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},
"refusal": {
"type": [
"string",
"null"
]
},
"role": {
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"assistant",
"tool"
],
"type": "string"
},
"tool_call_id": {
"type": "string"
},
"tool_calls": {
"items": {
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}
},
"required": [
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],
"type": "object"
},
"maxItems": 100,
"minItems": 1,
"type": "array"
},
"presence_penalty": {
"description": "Model-supported presence_penalty; see /docs/llm-capabilities.md.",
"type": "number"
},
"stream": {
"description": "Return live OpenAI-compatible SSE after payment settlement.",
"type": "boolean"
},
"stream_options": {
"description": "Optional include_usage boolean; usage is always requested upstream.",
"type": "object"
},
"temperature": {
"description": "Model-supported temperature; see /docs/llm-capabilities.md.",
"type": "number"
},
"top_k": {
"description": "Model-supported top_k; see /docs/llm-capabilities.md.",
"type": "integer"
},
"top_p": {
"description": "Model-supported top_p; see /docs/llm-capabilities.md.",
"type": "number"
}
},
"required": [
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],
"type": "object"
},
"bodyType": {
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"text"
],
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},
"method": {
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"type": {
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},
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}