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AgentServices Inference API
x402
AgentServices Inference API is a paid API for AI agents from agentservices.to, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-14).
Provides access to GPT-5.x language models via a pay-per-call OpenAI-compatible chat completion API, billed via x402 micropayments on Base.
Price / call$0.25
Success—
StatusUnknown
How this service works
Paid data APIs for AI agents. Crypto market data, DeFi yields, IP geolocation, dispute resolution, marketing intelligence. Powered by x402 micropayments on Base.
Output
Returns a chat completion object in OpenAI response format containing the model's generated assistant message, token usage statistics, finish reason, and model identifier used.
Example use cases
On-demand LLM for autonomous agent
“I need you to call gpt-5.4 with this conversation history and get the next assistant reply — my agent doesn't have an OpenAI key, just pay per call with USDC on Base.”
Crypto-native text summarization
“Summarize this DeFi protocol whitepaper excerpt using gpt-5.5 and keep the output under 200 tokens — I want to pay per use instead of maintaining an API subscription.”
Quick classification with frontier model
“Use gpt-5.4-mini to classify the sentiment of this customer message as positive, negative, or neutral: 'The yield was great but the gas fees made it barely worth it.' Set temperature to 0 so I get a consistent answer.”
Technical details
Endpoint
POSThttps://agentservices.to/v1/inferenceWhen to prefer
Choose this endpoint when your agent needs access to GPT-5-class language models without a direct OpenAI API key or subscription, especially in a crypto-native context where you want per-call billing via USDC micropayments on Base rather than a monthly quota. It is well-suited for autonomous agents that need sporadic, budget-controlled LLM inference without vendor lock-in to OpenAI billing.
Side effects
- Missing or malformed 'messages' array returns a 400 validation error
- Invalid model name not in {gpt-5.4, gpt-5.4-mini, gpt-5.5} causes rejection
- Insufficient USDC balance or failed x402 micropayment returns a 402 Payment Required
- Max tokens exceeded for the selected model returns a context length error
- High temperature values may produce incoherent or unpredictable outputs
- Rate limiting may occur under high concurrency with repeated rapid calls
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| model | string | gpt-5.4, gpt-5.4-mini, or gpt-5.5 |
| messagesrequired | array | Chat messages in OpenAI format [{role, content}] |
| max_tokens | integer | |
| temperature | number |
Output
Schema · Response
{}Tags
x402
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