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Chat Completion Plus (eucompliance.tools)
x402
Chat Completion Plus (eucompliance.tools) is a paid API for AI agents from api.eucompliance.tools, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).
Sends a prompt or messages array to a stronger LLM model and returns the completion as JSON, with a signed receipt, hard caps, and no account required — at $0.02 USDC per call.
Price / call$0.02
Success—
StatusUnknown
How this service works
LLM completion per call on a stronger model, no account needed: POST a prompt or messages array, get the answer as JSON. 6,000 UTF-8 bytes in, 1,200 tokens out, fixed price per call, hard caps disclosed in every response, signed receipt included. Smaller and cheaper tier at /x402/chat.
Output
A JSON object containing the LLM-generated completion text, token usage counts, hard cap values (input: 16k chars, output: 2k tokens), and a cryptographically signed receipt proving the payment was processed — all returned in a single response with no account or API key required.
Example use cases
Complex legal question answering
“I need a detailed, high-quality answer about the differences between EU GDPR and the California CCPA — use the stronger model tier so the answer is thorough, and include the signed receipt so I can audit the call.”
Agent reasoning step with premium model
“My automated workflow needs to classify and summarize this 10,000-character contract clause using the best available model — no API key setup, just pay per call and return the JSON result with usage caps.”
Multi-turn dialogue completion
“Send this conversation thread to the premium LLM — system: 'You are a financial advisor', then three user/assistant turns ending with 'What's the risk of holding 40% in a single equity?' — and give me the completion with the token receipt.”
Technical details
Endpoint
POSThttps://api.eucompliance.tools/x402/chat-plusWhen to prefer
Choose this endpoint over the basic /x402/chat tier when the task demands higher reasoning quality, more nuanced language, or complex multi-turn dialogue — the stronger model handles intricate legal, financial, or technical prompts better. Prefer it when a signed receipt is needed for auditability in agentic workflows. It costs $0.02 USDC per call (vs. less on the basic tier) but requires no account, API key, or subscription, making it ideal for pay-per-use agent pipelines.
Side effects
- Prompt or messages array exceeds the 16,000-character input cap — request rejected with cap-exceeded error
- Payment of $0.02 USDC not successfully processed via x402 protocol — call not executed
- Malformed messages array structure causes a parsing error — JSON validation failure returned
- Downstream LLM provider unavailable — service error with retry guidance
- Output truncated at 2,000-token hard cap — partial completion returned with cap indicator in response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| prompt | string | |
| system | string | |
| messages | array |
Tags
x402
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