# Chat Completion Plus (eucompliance.tools)

> 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.

## Facts

- Endpoint: POST https://api.eucompliance.tools/x402/chat-plus
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/chat-completion-plus-eucompliance-tools-9513d1f7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mIy5PRnb1Hg_fcD_v-Njh

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability chat-completion-plus-eucompliance-tools-9513d1f7 -d '<json body>'
```

Example prompt: Using the stronger LLM tier at eucompliance.tools, send this messages array — system: 'You are a legal expert', user: 'Summarize the key obligations under GDPR Article 17' — and give me the full completion along with the signed receipt.

## When to prefer this

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.

## Known failure modes

- 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

## 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.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "prompt": {
   "type": "string"
  },
  "system": {
   "type": "string"
  },
  "messages": {
   "type": "array"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/chat-completion-plus-eucompliance-tools-9513d1f7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.eucompliance.tools](https://www.zero.xyz/host/api.eucompliance.tools/llms.txt)