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Media Chain

Mediachain (Mediachain Labs) was a decentralized universal media library and attribution protocol built on IPFS and blockchain technology, designed to let creators and applications collaborate on open metadata about creative works and track the provenance and ownership of online images and other media. Founded in 2016 with seed funding from Andreessen Horowitz and Union Square Ventures, the company was acqui-hired by Spotify in April 2017 to help build fair, blockchain-based royalty attribution for rightsholders. The company is now defunct and its primary domain (mediachain.io) is a parked page, but its open-source protocol, design documentation, Protocol Buffer definitions, and first-party client libraries (the `aleph`/`mcclient` JavaScript client on npm and the `mediachain-client` Python reader on PyPI) remain public under the github.com/mediachain organization. This profile was surfaced as an a16z portfolio company and enriched from its surviving open-source surface.

human only

Index entry only — little beyond a description and a link, and nothing machine-readable enough for an agent to act on without a human reading the site first.

Kin Score

Media Chain is tracked in the API Evangelist network. This page is the human-readable profile that sits on top of the machine-readable index we maintain at apis.io.

Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Media Chain scores 11.8/100 (minimal), with a separate agent-readiness read of 0/100 (human only). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.

Kin Score

This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 11.8/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 4.3 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 0.7 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3

Resources

Every other property we hold for Media Chain — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.

Documentation 1

Reference material describing how the API behaves

Other 3

Properties that don't map to a standard resource type

Media Chain is in the network as a tracked entity. We haven't yet indexed a public API surface for it — when one is published, the artifacts, score, and agent-readiness read will appear here automatically. The source repository is where that profile is built.

← All providers · Data indexed from github.com/api-evangelist/media-chain · machine-readable index on apis.io