J JJAPI
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DeepSeek

DeepSeek API access β€” without the regional sign-up.

deepseek-chat (V3) and deepseek-reasoner (R1) at competitive token prices. Same OpenAI-compatible endpoint, lifetime credit.

Get my API key β†’ Quickstart in 30 seconds β†’

Latest models as of 2026-05-23

See all models β†’
deepseek-v3.5 balanced

Current flagship chat model. Strong general-purpose model at extreme value pricing.
deepseek-coder-v3 specialized

Code-specialized variant. The cheap pick for IDE autocomplete on JJAPI.
deepseek-r2 reasoning

Open-weight reasoning model. R2 succeeds R1 β€” exposes reasoning_content stream.

Why use JJAPI for this API

Cheapest competitive model

DeepSeek's per-million-token rate is a fraction of GPT-4o's, and on many tasks the gap doesn't show.

Reasoning output streamed

deepseek-reasoner streams its thinking tokens β€” JJAPI exposes them as `reasoning_content`.

Always available

When DeepSeek's official API has capacity issues (it happens), JJAPI fails over to mirror endpoints automatically.

OpenAI-compatible

Same call signature as GPT-4o β€” switch models with a single string.

example.py 
from openai import OpenAI

client = OpenAI(
    base_url="https://api.jjapi.net/v1",
    api_key="sk-jjapi-...",
)

r = client.chat.completions.create(
    model="deepseek-v3.5",  # current as of 2026-05-23
    messages=[{"role": "user", "content": "Hi"}],
)
print(r.choices[0].message.content)

Frequently asked

Can I use DeepSeek with Cursor or Continue?

Yes. Point your editor's OpenAI-compatible provider at JJAPI and pick deepseek-chat or deepseek-reasoner.

Why is DeepSeek sometimes faster than GPT-4o?

On JJAPI we route to whichever DeepSeek mirror has the lowest queue depth at request time.

Does function calling work?

Yes β€” deepseek-chat supports OpenAI-style `tools`. deepseek-reasoner is a reasoning model without tool use.

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