Yield Protocol
Yield Protocol was a decentralized Ethereum protocol that brought fixed-rate, fixed-term borrowing and lending to DeFi via collateralized debt vaults and its YieldSpace automated market maker for fyTokens (fixed-yield tokens). Backed by Paradigm, the protocol reached a v2 implementation before winding down, and the yieldprotocol.com site now displays a closure notice. There is no REST/HTTP API surface; Yield Protocol is consumed on-chain through its Solidity smart contracts, with first-party developer libraries (vaults, interfaces, YieldSpace AMM, utility contracts) published to npm under the official @yield-protocol scope and source code maintained across the github.com/yieldprotocol organization. This profile was surfaced as a Paradigm portfolio company and enriched from public package and repository evidence.
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.
API Evangelist profiles Yield Protocol the way a machine reads it — 1 machine-readable artifact, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
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 — Yield Protocol scores 8.7/100 (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
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile Yield Protocol
Each block below is one kind of artifact we hold for Yield Protocol. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
Security Posture 1
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Resources
Every other property we hold for Yield Protocol — 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.
Build 3
SDKs, sample code, and the tooling you integrate with
Access & Security 1
Authentication, authorization, and security posture
Company 1
The organization behind the API
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