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hostfunc vs AWS Lambda

AWS Lambda is the most powerful and configurable serverless platform there is — and that power comes with IAM, API Gateway, VPCs, and infrastructure-as-code. hostfunc trades that ceiling for speed: export a single main() and you have a live URL with triggers, encrypted secrets, an MCP server, and observability in seconds, with zero ops.

CapabilityhostfuncAWS Lambda
LanguagesTypeScript-firstMany (Node, Python, Go, …)
SetupWrite main(), deploy — no infra configIAM, API Gateway, IaC / console
TriggersHTTP, cron, email, MCP — built inVia API Gateway, EventBridge, SES, …
Agent / MCP nativeBuilt-in MCP serverNot built-in
SecretsEncrypted secrets UI, run-time fetchSecrets Manager / SSM (separate setup)
Cold start modelV8 isolates (fast cold start)Containers / micro-VMs
MarketplacePublic, forkable functionsNone
Self-hostYes — Docker ComposeAWS-managed only

Choose hostfunc when

  • You want to ship a function in seconds without touching IAM, API Gateway, or Terraform.
  • You want agent/MCP access and composition lineage built in.
  • You value fast V8 isolate cold starts and a single, unified observability pipeline.

Choose AWS Lambda when

  • You need deep AWS integration, many language runtimes, or fine-grained IAM and VPC control.
  • You're building large, complex systems where infrastructure-as-code is a requirement.
  • You need enterprise compliance and SLAs that a managed cloud provides.

Ship your first function in 90 seconds

Sign in, drop in some TypeScript, hit deploy. See the pricing or browse use cases.