OpenClaw Quickstart | Doubleword Inference API

What is Doubleword?

Doubleword is a hosted async inference cloud built for high-volume, non-real-time AI workloads. Your OpenClaw agent does a lot of work you don't see — overnight research, scheduled reports, email triage, memory maintenance. Most of this happens in the background, where speed doesn't matter but cost does.

Doubleword gives your agent a cheaper inference tier for exactly those tasks. While you chat in real time on a fast model, the background heavy lifting runs on Doubleword — at up to 4× lower cost.

Mode	Latency	Cost	Your agent uses it for
Realtime	Immediate	Standard	Answering you in chat
Async	~5 min in practice	Reduced	Background tasks that can wait a few minutes
High throughput	Hours	Lowest	Overnight jobs, large document pipelines

Setup

Step 1 — Install the Doubleword skill

The skill teaches your agent how to use the Doubleword API — submitting jobs, checking status, downloading results, available models and pricing. Install it once and your agent knows everything it needs.

npx skills add https://github.com/doublewordai/batch-skill

Or with git:

git clone https://github.com/doublewordai/batch-skill

Once installed, your agent can answer questions like "how do I submit a job?" or "what models are available?" — and more importantly, it can use the API on your behalf without you having to explain anything.

Step 2 — Add your API key

Sign up at app.doubleword.ai — $10 free credits on signup (~20M tokens). Create an API key under API Keys in the sidebar, then store it:

cat >> ~/.openclaw/.doubleword_creds << 'EOF'
DOUBLEWORD_API_KEY={{apiKey}}
DOUBLEWORD_API_BASE=https://api.doubleword.ai/v1
DOUBLEWORD_MODEL_DEFAULT={{selectedModel.id}}
EOF

Step 3 — Tell your agent when to use it

Add a routing note to your workspace TOOLS.md:

## Doubleword (Async Inference)
- Credentials: ~/.openclaw/.doubleword_creds
- Use for: overnight research, cron jobs, summarisation,
  document processing, synthetic data, model evals —
  anything where waiting a few minutes is fine
- Not for: real-time chat, mid-conversation tool calls

That's it. Your agent now knows to reach for Doubleword on background tasks automatically.

What your agent can do with Doubleword

Once set up, just ask — your agent handles the rest: