relayswitch

Python client for RelaySwitch: one API key for Claude, GPT, Gemini, DeepSeek, Qwen, Kimi, GLM and more, built for coding agents and paid by card or crypto. The API speaks the OpenAI and Anthropic formats, so you keep the official SDKs.

pip install "relayswitch[openai]"      # or [anthropic], or [all]
export RELAYSWITCH_API_KEY="..."

Get a key at app.relayswitch.io/console. Credit is prepaid from $10, with no subscription.

OpenAI SDK

import relayswitch

client = relayswitch.openai_client()
reply = client.chat.completions.create(
    model="claude-opus-5-5",
    messages=[{"role": "user", "content": "Say hi in five words."}],
)
print(reply.choices[0].message.content)

Anthropic SDK

import relayswitch

client = relayswitch.anthropic_client()
msg = client.messages.create(
    model="claude-sonnet-5-5",
    max_tokens=200,
    messages=[{"role": "user", "content": "Say hi in five words."}],
)
print(msg.content[0].text)

Prices, no key needed

import relayswitch

for m in relayswitch.models():
    p = m["pricing"]
    print(f'{m["id"]:<40} ${p["input"]}/${p["output"]} per 1M tokens')

Without this package

Set OPENAI_BASE_URL or ANTHROPIC_BASE_URL to https://api.relayswitch.io/v1 and use your key.

• Models and prices: relayswitch.io/models
• Daily real-model check: relayswitch.io/proof
• Setup guides: relayswitch.io/guides

Run by Uplink Switch LLC.