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Forest Containers — OCI Tag State Resolver
x402
Forest Containers — OCI Tag State Resolver is a paid API for AI agents from http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-02).
Resolves a public OCI container image tag to its immutable manifest digest via the standard Distribution API, without pulling blobs or accessing private registries.
Price / call$0.002
Success—
StatusUnknown
How this service works
Check an anonymously readable OCI image tag and resolve its manifest digest through the standard Distribution API. No blob pull, push, delete or private registry access is performed. Base mainnet USDC
Output
Returns the resolved manifest digest (an immutable content-addressed hash) for the specified public OCI image tag, along with its current state as reported by the registry's Distribution API — without downloading any layer blobs.
Example use cases
Pin immutable digest for production deploy
“Resolve docker.io/library/node with tag 20-alpine to its current immutable digest so I can lock it in our production Dockerfile instead of using a mutable tag.”
Monitor base image for unexpected updates
“Check the current manifest digest for ghcr.io/my-org/base-image with tag stable — I want to know if it has changed since yesterday.”
Verify third-party image integrity before use
“What digest does the public image prom/prometheus resolve to on the latest tag right now? I need to confirm it matches what our security team approved.”
Technical details
Endpoint
POSThttps://http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/container/tag-state?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to resolve a mutable OCI tag (like 'latest') to its current immutable manifest digest for a publicly accessible image, without needing to pull any layers. Prefer it over direct registry API calls when you want a paid, metered, bounded resolution with no blob traffic. It is ideal for supply-chain verification, deployment pinning, and change detection workflows where you only need the digest metadata, not the image content.
Side effects
- Image not found or repository does not exist — registry returns 404
- Tag does not exist on the specified image — returns tag-not-found error
- Registry is temporarily unavailable — timeout or 5xx error
- Image or registry requires authentication — only anonymously readable images are supported
- Invalid image path format — rejected by schema validation before calling registry
- Rate limiting by the upstream public registry
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| tag | string | Repository branch whose current state should be checked. |
| image | string | Public registry image repository to inspect. |
Tags
x402
Reviews
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