Free vs paid cloud platform servers your cloud bill is already the meter.

When the cloud account is yours, self-hosting the free connector is clearly right. Running gemini-cloud-assist-mcp against your own GCP project, or Cloudflare MCP against your own zones, adds no new costs and no new trust relationships — the agent acts within IAM permissions you already control, and every resource it creates lands on your existing bill.

The discipline this requires is scoping. A cloud-platform credential is the most dangerous kind to hand an agent, because mistakes are billable. Narrow service accounts and read-only roles where possible are the real cost of the free path.

A second kind of listing in this category doesn't just connect — it performs a job with a defined output. cloud-audit scans AWS for attack chains and IAM privilege escalation; kastell runs 413 security checks across four cloud providers; Transloadit Media Processing pushes video and documents through 86+ processing robots. Each call does bounded, valuable work, and that work consumes the operator's compute or expertise, not just yours.

These are natural per-call products. "One audit of one account" or "one video transcoded" is a unit a buyer can price, and an agent can decide at call time whether the result is worth it.

Buying cloud tooling normally means a vendor relationship: contracts, seats, API keys in a secrets manager. x402 collapses that to a single request. The agent calls the endpoint, gets 402 Payment Required with the price, settles in USDC on Base in about two seconds, and the job runs — payment confirmed before execution, Ed25519-signed receipt attached, no chargebacks. Minimum price $0.01 per call.

For occasional jobs — a quarterly security audit, a one-off media batch — this beats both subscriptions you'd underuse and self-hosting tools you'd run twice a year.

Self-host free when the listing is a connector to an account you own and the agent operates inside your IAM boundary. Consider paid per-call when the listing is a work product — an audit, an analysis, a processing job — where the operator's infrastructure and expertise produce the value, or when granting a third-party agent direct credentials to your cloud is unacceptable and a narrow paid endpoint is the safer interface.

If your server does bounded work per invocation, that's a claimable, priceable listing. Set the price above your per-job cost on Loomal; the 5% fee on settled transactions is currently waived.