# DeepSeek R1 Reasoning Model via x402 Gateway

> DeepSeek R1 Reasoning Model via x402 Gateway is a paid API for AI agents from x402-gateway-production.up.railway.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Runs DeepSeek R1 chain-of-thought reasoning inference, delivering o3-competitive multi-step reasoning at a fraction of the cost via x402 micropayment gateway

## Facts

- Endpoint: POST https://x402-gateway-production.up.railway.app/api/llm/deepseek-r1
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-gateway-production-up-railway-app-dd5977a3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2RqA511JWxIXqwKxJkUb1

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 x402-gateway-production-up-railway-app-dd5977a3 -d '<json body>'
```

Example prompt: Use DeepSeek R1's chain-of-thought reasoning to figure out the optimal strategy for this game theory problem: three players each choose a number between 1 and 100, and the player closest to half the average wins — walk me through the reasoning step by step.

## When to prefer this

Choose this endpoint when you need strong multi-step logical reasoning, math problem solving, or chain-of-thought analysis and want o3-competitive quality at a fraction of the cost. Prefer over GPT-4o or Claude endpoints when cost efficiency matters and the task benefits from explicit reasoning traces. Ideal for agentic workflows that need to solve complex problems step by step without paying premium model prices.

## Known failure modes

- Payment failure — insufficient USDC balance or x402 payment rejected, returns 402 Payment Required
- Invalid prompt format — malformed request body returns 400 Bad Request
- Model timeout — complex reasoning chains exceeding time limits return 504
- Rate limiting — too many concurrent requests returns 429 Too Many Requests
- Upstream DeepSeek API unavailability returns 503 Service Unavailable

## How this service works

DeepSeek's reasoning model — chain-of-thought reasoning competitive with o3 at fraction of cost

## Output

Returns the model's chain-of-thought reasoning trace and final answer text, showing the step-by-step reasoning process DeepSeek R1 used to arrive at its conclusion, comparable in quality to OpenAI o3 but at significantly lower cost.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-gateway-production-up-railway-app-dd5977a3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-gateway-production.up.railway.app](https://www.zero.xyz/host/x402-gateway-production.up.railway.app/llms.txt)