MarketNow Registry / Finance / @cardano402/core
@cardano402/core
Schemas, types, header codec, and FacilitatorClient for x402 payments on Cardano. Zero-runtime-dep core (except zod) for clients, resource servers, and MCP tooling.
Install
$ npx -y @cardano402/coreInstalling via npx/uvx/npm install executes arbitrary code from the public registry on your machine. This is the install-risk semantic of the MarketNow catalog — verify the publisher before running it.
Adoption evidence: 100 weekly registry downloads.
How MarketNow scored this
Sentinel Index Heuristics — a security-first estimate from public signals:
- Package age and release activity (stale repositories lose points)
- Verified adoption: registry downloads or GitHub stars, not follower counts
- Typosquat distance against the 150 most-installed MCP packages
- Injection markers scanned in the package description
Heuristic, not a guarantee. For verified agent credentials and revocation, see the MarketNow Trust API.
What is @cardano402/core?
Schemas, types, header codec, and FacilitatorClient for x402 payments on Cardano. Zero-runtime-dep core (except zod) for clients, resource servers, and MCP tooling. Indexed by MarketNow with trust 72/100 (Runs registry code).
How do I install it?
Run $ npx -y @cardano402/core Installing via npx/uvx/npm install executes arbitrary code from the public registry on your machine. This is the install-risk semantic of the MarketNow catalog — verify the publisher before running it.
What does the trust score mean?
Security-first heuristic over public signals (age, adoption, typosquat distance, injection markers). It is not a popularity ranking and not a guarantee of safety. @cardano402/core scores 72/100.