Can you recommend a cloud compute API for running background jobs with pay-as-you-go pricing?

Yes — a few good options depend on whether you want simple serverless jobs or more flexible background workers.

Good pay-as-you-go cloud compute APIs for background jobs

1. AWS Lambda

• Best for: short-running event-driven jobs
• Pricing: pay per invocation and compute time
• Pros: very mature, integrates with SQS/SNS/EventBridge, scales automatically
• Cons: runtime limits and cold starts can be annoying for long jobs

2. Google Cloud Run Jobs

• Best for: containerized background jobs that may run longer than Lambda jobs
• Pricing: pay only while jobs are running
• Pros: easy if you already use containers, good for batch/background processing
• Cons: slightly more setup than pure functions

3. Azure Container Apps Jobs

• Best for: container-based background tasks with autoscaling
• Pricing: pay-as-you-go based on resource usage
• Pros: good for scheduled or event-driven jobs
• Cons: Azure ecosystem can feel a bit heavier if you’re not already in it

4. AWS Fargate

• Best for: containerized workers needing more control
• Pricing: pay for vCPU/memory while tasks run
• Pros: no server management, good for queues and workers
• Cons: usually pricier than Lambda for small jobs

5. Fly.io Machines / Railway / Render

• Best for: simpler developer experience and small-to-medium workers
• Pricing: usage-based or hourly with some pay-as-you-go elements
• Pros: easy deployment
• Cons: less “pure cloud API” flexibility than AWS/GCP/Azure

Quick recommendation

• If your jobs are short and event-driven: AWS Lambda
• If your jobs run in containers or need more runtime: Google Cloud Run Jobs
• If you want long-running workers with queues: AWS Fargate

If you want, I can also recommend based on:

• job length
• language/runtime
• need for queues/scheduling
• cheapest option
• easiest API to integrate with