InterAI+ (also InterAI Plus)
InterAI+ (also InterAI Plus): pay-per-call LLM chat completions in USDC over x402. Pick a model by id or let the service choose. Price depends on model and max_tokens; the 402 shows it before you pay. Failed paid calls are tracked for manual refund. Free: GET /v1/catalog, /v1/quote, /v1/coming, /v1/autonomous-agents; POST /v1/register-interest. Coming: image generation, image with text, video, voice, transcription, embeddings, rerank, chat with audio and decisions.
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://interai-x402.intellaisolution.com/v1/chat/completions
| Category | Image and media |
|---|---|
| Provider host | interai-x402.intellaisolution.com |
| Networks | eip155:8453 |
| 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 |
|---|---|---|---|---|
| 2026-10-18 | valid payment request | 402 | $0.01366 | 1097 ms |
Example input (from the provider)
{
"body": {
"max_tokens": 256,
"messages": [
{
"content": "Summarize this paragraph in one sentence: ...",
"role": "user"
}
],
"model": "anthropic/claude-sonnet-5.5"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"max_tokens": {
"description": "Output token cap. Billed at the tier price for 256, 512, 1024, 2048, or 4096 (see GET /v1/catalog). Each tier also caps allowed input length (2000, 3000, 4000, 6000, 8000 characters respectively) \u2014 exceeding it returns 400 input_too_large before payment is required. Defaults to the most expensive tier (4096) if omitted.",
"type": "integer"
},
"messages": {
"description": "OpenAI-style chat message array.",
"items": {
"properties": {
"content": {
"type": "string"
},
"role": {
"enum": [
"system",
"user",
"assistant"
],
"type": "string"
}
},
"required": [
"role",
"content"
],
"type": "object"
},
"type": "array"
},
"model": {
"description": "Optional. A model id from GET /v1/catalog (e.g. 'anthropic/claude-sonnet-5.5'). Fixes the model and its exact price for the requested max_tokens tier. Omit to let the service pick a model automatically for the task category.",
"type": "string"
}
},
"required": [
"messages"
],
"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": {
"properties": {
"choices": {
"items": {
"properties": {
"finish_reason": {
"type": "string"
},
"index": {
"type": "integer"
},
"message": {
"properties": {
"content": {
"type": "string"
},
"role": {
"type": "string"
}
},
"type": "object"
}
},
"type": "object"
},
"type": "array"
},
"id": {
"type": "string"
},
"model": {
"description": "When you request a specific model, this echoes that same id. When you omit model (automatic mode), this is \"interai-plus-auto\".",
"type": "string"
},
"object": {
"type": "string"
},
"usage": {
"properties": {
"completion_tokens": {
"type": "integer"
},
"prompt_tokens": {
"type": "integer"
},
"total_tokens": {
"type": "integer"
}
},
"type": "object"
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}