Angle
Angle (Angle Labs, Inc.) is a decentralized, over-collateralized stablecoin protocol that issued the euro-pegged EURA and dollar-pegged USDA stablecoins, along with yield-bearing staked versions of each. Its on-chain modules included the Transmuter basket-and-dynamic-fee minting system, a borrowing module for depositing collateral against stablecoin debt, a native savings system, and cross-chain liquidity infrastructure. The protocol is open source under the AngleProtocol GitHub organization and ships a TypeScript SDK for building applications on top of it. Angle has announced the end of its operations — the protocol remains fully collateralized and every USDA and EURA is redeemable 1:1 until 1 March 2027 — and the team's ongoing work has moved to Merkl. Angle exposes smart contracts and a client SDK rather than a documented public REST API.
Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.
API Evangelist profiles Angle the way a machine reads it — 22 machine-readable artifacts across 20 APIs, 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 — Angle scores 33.1/100 (thin), with a separate agent-readiness read of 39/100 (agent aware). 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 Angle
Each block below is one kind of artifact we hold for Angle. 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.
APIs 20
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Angle Allowances API
The Allowances API from Angle — 1 operation(s) for allowances.
Angle Angle Protocol Data API
The Angle Protocol Data API from Angle — 3 operation(s) for angle protocol data.
Angle App API
The App API from Angle — 1 operation(s) for app.
Angle Apr API
The Apr API from Angle — 1 operation(s) for apr.
Angle Balances API
The Balances API from Angle — 1 operation(s) for balances.
Angle Borrow API
The Borrow API from Angle — 4 operation(s) for borrow.
Angle Bridge API
The Bridge API from Angle — 1 operation(s) for bridge.
Angle Dao API
The Dao API from Angle — 1 operation(s) for dao.
Angle Helpers API
The Helpers API from Angle — 5 operation(s) for helpers.
Angle Incentives API
The Incentives API from Angle — 1 operation(s) for incentives.
Angle Integrators API
The Integrators API from Angle — 6 operation(s) for integrators.
Angle Perpetuals API
The Perpetuals API from Angle — 1 operation(s) for perpetuals.
Angle Pools API
The Pools API from Angle — 1 operation(s) for pools.
Angle Prices API
The Prices API from Angle — 1 operation(s) for prices.
Angle Savings API
The Savings API from Angle — 3 operation(s) for savings.
Angle Tvl API
The Tvl API from Angle — 1 operation(s) for tvl.
Angle User related information API
The User related information API from Angle — 3 operation(s) for user related information.
Angle VaultManagers API
The VaultManagers API from Angle — 1 operation(s) for vaultmanagers.
Angle Vaults API
The Vaults API from Angle — 1 operation(s) for vaults.
Angle Volume API
The Volume API from Angle — 1 operation(s) for volume.
Scroll within the panel for all 20 ·
Security Posture 2
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 Angle — 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 2
Reference material describing how the API behaves
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 5
Pagination, idempotency, versioning, errors, and events
Build 4
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 1
The organization behind the API
Other 2
Properties that don't map to a standard resource type
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