Warbler Labs Incorporated
Warbler Labs is the San Francisco-based software company founded in 2020 by former Coinbase engineers Blake West and Mike Sall that builds and maintains Goldfinch, a decentralized credit protocol on Ethereum for stablecoin lending to real-world borrowers without crypto collateral, and UID (Unique Identity), a KYC/KYB-compliant on-chain identity credential. Warbler Labs is the core development team behind the Goldfinch protocol, its smart contracts, oracles, and subgraph data layer, and publishes developer documentation for building on and integrating with the protocol. The company is backed by Andreessen Horowitz (a16z), Coinbase Ventures, IDEO CoLab, Kindred Ventures, and others, and was surfaced through the a16z portfolio. Its developer surface is primarily on-chain (Solidity smart contracts, The Graph subgraph for querying protocol data, and the UID credential) rather than a hosted REST API.
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 Warbler Labs Incorporated 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 — Warbler Labs Incorporated scores 13.5/100 (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 Warbler Labs Incorporated
Each block below is one kind of artifact we hold for Warbler Labs Incorporated. 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 Warbler Labs Incorporated — 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.
Get Started 2
Portal, sign-up, and the first successful call
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 1
Authentication, authorization, and security posture
Company 2
The organization behind the API
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