# Telnyx Inference – MiniMax M3 MXFP8 Chat Completions (Large Context)

> Telnyx Inference – MiniMax M3 MXFP8 Chat Completions (Large Context) is a paid API for AI agents from x402.telnyx.com, paid per call via x402, $0.028233/call, status unknown (last checked 2026-10-17).

Runs OpenAI-compatible chat completions using MiniMaxAI/MiniMax-M3-MXFP8 on Telnyx's inference infrastructure, billed per call via x402 micropayments, optimized for large-context inputs.

## Facts

- Endpoint: POST https://x402.telnyx.com/v1/chat/completions/_t/minimax-m3/upto?utm_source=zero.xyz
- Price: $0.028233/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/telnyx-inference-minimax-m3-mxfp8-chat-completions-large-context-24f94b33
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FWuCU_dtH_-eeZsE5KvHY

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 telnyx-inference-minimax-m3-mxfp8-chat-completions-large-context-24f94b33 -d '<json body>'
```

Example prompt: Using the MiniMax M3 model on Telnyx, summarize this 50-page contract I'm pasting in — pull out the key obligations, deadlines, and any unusual clauses. Set temperature to 0.2 and limit the response to 4096 tokens.

## When to prefer this

Choose this endpoint when you need very large context window processing (up to 200,000 characters per message) with MiniMax M3's MXFP8 quantized model via a pay-per-call micropayment model. Prefer this over other Telnyx models when MiniMax M3's specific capabilities (mixture-of-experts architecture, large context) are required, and over standard OpenAI when you want metered per-call billing without a subscription. The upto/metered route is suited for large-context workloads where cost scales with actual usage.

## Known failure modes

- Payment failure: x402 payment not accepted or insufficient USDC balance
- Context length exceeded: input messages exceed 200,000 characters per message or 32-message limit
- Invalid model field: any value other than MiniMaxAI/MiniMax-M3-MXFP8 will be rejected
- Temperature out of range: values below 0 or above 2 return validation error
- max_tokens out of range: values below 1 or above 8192 return validation error
- Tool list too long: more than 16 tools in the array will be rejected
- Network timeout on very large context payloads

## How this service works

Chat completions via Telnyx Inference (MiniMaxAI/MiniMax-M3-MXFP8). OpenAI-compatible. $0.011974 USDC per call. (upto metered — large context)

## Output

Returns an OpenAI-compatible chat completion JSON object containing the assistant's response message (or tool call), finish reason, token usage statistics, and model identifier. The response is a single completion (n=1) from MiniMax-M3-MXFP8.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "n": {
   "type": "integer",
   "const": 1,
   "description": "Fixed to one completion per paid call."
  },
  "model": {
   "type": "string",
   "const": "MiniMaxAI/MiniMax-M3-MXFP8",
   "description": "Model identifier; fixed to MiniMaxAI/MiniMax-M3-MXFP8 on this route."
  },
  "tools": {
   "type": "array",
   "items": {
    "type": "object"
   },
   "maxItems": 16
  },
  "messages": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "role",
     "content"
    ],
    "properties": {
     "role": {
      "enum": [
       "system",
       "user",
       "assistant",
       "tool"
      ],
      "type": "string"
     },
     "content": {
      "type": "string",
      "maxLength": 200000
     }
    }
   },
   "maxItems": 32,
   "description": "OpenAI-style chat messages."
  },
  "max_tokens": {
   "type": "integer",
   "maximum": 8192,
   "minimum": 1
  },
  "temperature": {
   "type": "number",
   "maximum": 2,
   "minimum": 0
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/telnyx-inference-minimax-m3-mxfp8-chat-completions-large-context-24f94b33/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.telnyx.com](https://www.zero.xyz/host/x402.telnyx.com/llms.txt)