Cosign · Pricing Plans

Cosign Plans Pricing

Cosign publishes no plans and no pricing, and this is not an omission — it is an Apache-2.0 open source project of the OpenSSF, and the Sigstore public-good instance it talks to is free to use for everyone with no account, no key and no billing relationship. There is no signup, no paid tier and no enterprise "contact us" form. This file replaces a 2026-05-04 bulk-sweep scaffold that invented a "Free" tier with an "API Requests" quota; no such tier or quota exists.

Cosign Plans Pricing is the machine-readable pricing-plan profile for Cosign on the APIs.io network, conforming to the API Commons Plans specification.

Tagged areas include Apache 2.0, Attestation, CLI, Code Signing, and Containers.

0 Plans API Commons Plans
View Source
Apache 2.0AttestationCLICode SigningContainersFulcioGoKeylessOCIOIDCOpen-SourceRekorSigstoreSupply ChainTransparency LogVerification

Work with this as data

Every plan here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for plans

4 MCP tools reach this
  • find_plansBrowse and filter every plan in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This plan 
curl "https://apis.io/api/v1/plans/cosign-plans-pricing"
All plans 
curl "https://apis.io/api/v1/plans?limit=25"

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