you can access claude sonnet 4.5, gpt-4o, deepseek r1, and 30+ models for free with $100 in credits and no credit card needed
agentrouter is a non-profit AI gateway from china. one api key, one base url, everything.
what you get on signup:
- $100 free credits instantly (github account required)
- claude sonnet 4.5 / opus 4.5
- gpt-4o + gpt-4o-mini
- deepseek-v3 / r1
- glm-4.5 (zhipu flagship)
- qwen3, gemini 2.0 pro, and 25+ more
- openai-compatible api - works in cursor, continue, hermes, claude code, anything
actual free tier: glm-4.5 air, deepseek-v2 lite, qwen2-7b (no credits consumed)
full setup guide (2 minutes):
step 1: create your account
> go to https://t.co/XGyNc1zkwX
> sign in with github (required)
> $100 credits added automatically
step 2: generate your api key
> go to https://t.co/z93g7FEmSh
> click "create new key"
> copy the key - you won't see it again
step 3: configure your client
> base url: https://t.co/y5TJ1hbIvK
> api key: paste your key
> model: claude-sonnet-4-5-20250929 (or gpt-4o, deepseek-r1...)
step 4: start prompting
> open any openai-compatible client
> select your model
> $100 of free inference before you touch a card
for claude code specifically:
> set ANTHROPIC_BASE_URL=https://t.co/hfzZM0ZaIm
> set ANTHROPIC_API_KEY=your-key
> run claude
already using openrouter? takes 30 seconds to swap the base url.
important:
- requests route through their gateway (china-based, singapore infra) - privacy consideration
- no sla - non-profit, not enterprise
- $200 with a referral link instead of $100 (links circulate on twitter)
- perfect for: side projects, claude code, learning, prototypes
- production workloads: keep direct provider accounts
you're paying $20/mo for each model separately but this $100 in free credits covers weeks of daily use.
bookmark this before the free tier changes
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