How to Use the Fable 5 (claude-fable-5) API From China & Beyond — Alipay/Card, Direct Access (Live)
claude-fable-5 is the newest flagship, but local cards can't pay for it and direct access is unstable. cocodot now supports Fable 5 directly: official relay, Alipay or card, OpenAI-compatible — just change base_url. $0.5 free credit on signup.
Why everyone is searching for the Fable 5 API
claude-fable-5 is the latest flagship — strong at writing, complex reasoning, code and agents. Developers everywhere want it in their apps, but if you're in China (or many other regions) you hit two walls.
Two walls to using the Fable 5 API
1) Payment: the official API needs an overseas credit card; local cards often get declined or flagged. 2) Network: direct access is unstable and may need a VPN — not something you want in production. The result: you know Fable 5 is strong, but you can't actually call it.
cocodot now supports Fable 5 directly
cocodot is an OpenAI-compatible API relay: change one base_url and call. Pay with Alipay (RMB) or card, billed per token, never above official price; official relay via licensed cloud vendors (not reverse-engineered). Fable 5 (claude-fable-5) is live now — same key, same base_url, just set the model to mcf-1. No code changes.
Call Fable 5 in three lines
Use any OpenAI SDK, point base_url at cocodot and set model to mcf-1: from openai import OpenAI client = OpenAI(base_url="https://cocodot.co/api/ai/v1", api_key="sk-YOUR_KEY") resp = client.chat.completions.create(model="mcf-1", messages=[{"role":"user","content":"Hello Fable 5"}]) print(resp.choices[0].message.content) Claude Code: set ANTHROPIC_BASE_URL=https://cocodot.co/api/ai; a model name containing 'fable' auto-routes to Fable 5.
Start now — and verify no downgrading yourself
Register, verify email for $0.5 free credit (trial credit is limited to cheaper models; calling Fable 5 needs a small top-up). Worried about a secretly quantized model? cocodot open-sourced its checker and runs an online version at probe.cocodot.co — paste any base_url + key to test, including testing us. Three steps: sign up, top up, set model to mcf-1.
Fable 5 from restrictive networks: direct vs cocodot relay
| Official API direct | cocodot relay (mcf-1) | |
|---|---|---|
| Payment | Needs overseas card; local cards decline | Alipay (RMB), billed per token |
| Network | Unstable, often needs a VPN | Direct access, one base_url change |
| Integration | Anthropic native format | OpenAI-compatible, no code change |
| Model name | claude-fable-5 | claude-fable-5 or mcf-1 |
| Price | Official rate | Capped at official rate, pay-as-you-go |
| Downgrade worry | Full model | Open-source probe, test us too |