# DeepSeek — x402.press

> DeepSeek AI inference without an API key or credit card.

Host: https://deepseek.x402.press
Page: https://x402.press/services/deepseek/
State: sellable
State note: Sellable as of 2026-10-30: GET /health answers 200 and every listed model/operation returns a 402 quote in the live handshake (measured 2026-10-30T23:10Z, see quote_basis).

## Price — exact (what a fixed call costs)

| chain | asset | exact USD |
|---|---|---|
| Base | USDC/EURC | 0.007 |
| Arbitrum | USDC | 0.006 |
| Polygon | USDC | 0.005 |
| Avalanche | USDC | 0.002 |
| Ethereum | USDC | 3.00 |
| Robinhood | USDG | 0.007 |
| Arc | USDC | 0.007 |

Metered ceiling on Base at max_tokens: 1000: 0.02595 USD (the highest of this service's models; per-model ceilings are in the JSON).
The same request with max_tokens unset tops out at 0.522547 USD — that authorises the model's whole output allowance, so it is a worst case, not a price. Every chain's ceilings are in https://x402.press/services/deepseek.json under quotes[].ceilings[].

Measured: 2026-10-30T23:28:43Z (unpaid request -> 402 Payment-Required header (first round of the handshake only; nothing signed, nothing settled)).

## Operations

- POST https://deepseek.x402.press/v1/chat/completions — OpenAI-compatible chat completions. Supports deepseek-v4-flash and deepseek-v4-pro. Additional OpenAI parameters (temperature, max_tokens, top_p, frequency_penalty, presence_penalty, stop, etc.) are forwarded. The quoted price follows the model requested and the prompt size, and is higher inside DeepSeek's peak windows (01:00-04:00 and 06:00-10:00 UTC, Monday-Friday).

## Free endpoints

- GET /v1/models — List available models (deepseek-v4-flash, deepseek-v4-pro)
- GET /deepseek/feedback — Return the 50 most recent feedback entries
- POST /deepseek/feedback — Submit feedback (response_id, rating 1-5, optional comment)

## Start

Send the request unpaid, read the 402, sign the amount it quotes, send it again. Nothing is charged for the first round.

## Review

DeepSeek: per-call chat completions over x402: https://x402.review/2026/10/31/deepseek-review/

Catalog: https://x402.press/catalog.json
Hub: https://x402.press/llms.txt