# DeepSeek via Locus x402 — List Models

> DeepSeek via Locus x402 — List Models is a paid API for AI agents from deepseek.x402.paywithlocus.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).

Lists all available DeepSeek AI models (DeepSeek-V3 and DeepSeek-R1) accessible through the Locus x402 pay-per-call gateway.

## Facts

- Endpoint: POST https://deepseek.x402.paywithlocus.com/deepseek/list-models
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/deepseek-via-locus-x402-list-models-b54f2ebe
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_D0AU5F_6Z3zYb7eFyAC5D

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 deepseek-via-locus-x402-list-models-b54f2ebe -d '<json body>'
```

Example prompt: Can you check which DeepSeek models are available through Locus right now — specifically whether DeepSeek-R1 and DeepSeek-V3 are both listed?

## When to prefer this

Use this endpoint when you need to programmatically discover which DeepSeek models are available via the Locus x402 pay-per-call gateway before making chat or reasoning requests. Prefer this over hardcoding model IDs, especially when building agents that need to dynamically select between DeepSeek-V3 (fast chat/code) and DeepSeek-R1 (deep chain-of-thought) or when verifying model availability at runtime.

## Known failure modes

- Payment failure if insufficient USDC balance — returns 402 Payment Required
- Malformed request body causes validation error
- Gateway timeout if DeepSeek upstream is unavailable
- Empty or unexpected response body if model catalog is temporarily unavailable

## How this service works

Frontier AI models — DeepSeek-V3 for fast chat and code, DeepSeek-R1 for deep chain-of-thought reasoning. OpenAI-compatible API format. Among the most capable and cost-efficient models available.

## Output

Returns a JSON object containing a list of available DeepSeek models (such as DeepSeek-V3 and DeepSeek-R1) with their metadata, alongside payment settlement details showing USDC charged and a request ID with a status URL for tracking.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "properties": {},
     "additionalProperties": true
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {},
  "payment": {
   "scheme": "exact",
   "settledUsdc": "0.001000",
   "authorizedMaxUsdc": "0.001000"
  },
  "request": {
   "id": "00000000-0000-4000-8000-000000000000",
   "statusUrl": "/requests/00000000-0000-4000-8000-000000000000"
  },
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/deepseek-via-locus-x402-list-models-b54f2ebe/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from deepseek.x402.paywithlocus.com](https://www.zero.xyz/host/deepseek.x402.paywithlocus.com/llms.txt)