Yield.xyz

Yield.xyz (formerly StakeKit) is a non-custodial, on-chain yield infrastructure API that lets wallets, custodians, exchanges, and AI agents integrate staking, restaking, liquid staking, DeFi lending, vaults, RWA yields, and perpetuals across 80+ networks and thousands of yield opportunities through a single standardized interface. The REST API discovers yields, constructs complete unsigned transaction flows (enter/exit/manage), and returns unified balances while signing and execution stay entirely with the developer. It powers platforms including Ledger, Zerion, and Tangem, and ships SDKs, an embeddable Widget, an AgentKit MCP server, and packaged agent Skills.

Yield.xyz publishes 1 API on the APIs.io network. Tagged areas include Company, Crypto Web3, Staking, DeFi, and Yield.

Yield.xyz’s developer surface includes documentation, API reference, getting-started guide, support, pricing, signup flow, changelog, and 22 more developer resources.

🌐 Visit website 📡 Source on GitHub

37.0/100 thin ▬ flat Agent 17/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessPaid

1 APIs 1 MCP Servers

Company Crypto Web3 Staking DeFi Yield Blockchain Restaking Vault Web3 Infrastructure Non-Custodial

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 37.0/100 · thin

Contract Quality 0.0 / 25

Developer Ergonomics 9.5 / 20

Access Clarity 12.4 / 20

Operational Transparency 7.5 / 13

Contract Governance 0.0 / 12

Discoverability 7.6 / 10

Agent readiness — 17/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/yieldxyz: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Yield.xyz API

Non-custodial yield REST API to discover yields, construct unsigned transaction flows (enter/exit/manage), and read unified balances across 80+ networks.

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Yield.xyz MCP Server

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Yieldxyz Plans

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Yieldxyz Rate Limits

3 limits

RATE LIMITS

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Yieldxyz Authentication

apiKey · 1 scheme

SECURITY

Yieldxyz Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

MCPServer

AgentSkill

WellKnown

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Components

Conventions

Lifecycle

DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

TrustCenter

TrustCenter

Authentication

Authentication

Operate 5

Status, limits, changes, and where to get help

Support

StatusPage

ChangeLog

Deprecation

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: yieldxyz
name: Yield.xyz
description: Yield.xyz (formerly StakeKit) is a non-custodial, on-chain yield infrastructure API that lets wallets, custodians,
  exchanges, and AI agents integrate staking, restaking, liquid staking, DeFi lending, vaults, RWA yields, and perpetuals
  across 80+ networks and thousands of yield opportunities through a single standardized interface. The REST API discovers
  yields, constructs complete unsigned transaction flows (enter/exit/manage), and returns unified balances while signing and
  execution stay entirely with the developer. It powers platforms including Ledger, Zerion, and Tangem, and ships SDKs, an
  embeddable Widget, an AgentKit MCP server, and packaged agent Skills.
url: https://raw.githubusercontent.com/api-evangelist/yieldxyz/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- multicoin-capital
x-tier: stub
x-tier-reason: portfolio-lead
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 14
  pass: local-v1
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-09-03'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
image: https://yield.xyz/images/og-image.png
tags:
- Company
- Crypto Web3
- Staking
- DeFi
- Yield
- Blockchain
- Restaking
- Vault
- Web3 Infrastructure
- Non-Custodial
tags_raw:
- Company
- Crypto Web3
- Staking
- DeFi
- Yield
- Blockchain
- Restaking
- Vaults
- Web3 Infrastructure
- Non-Custodial
apis:
- name: Yield.xyz API
  description: Non-custodial yield REST API to discover yields, construct unsigned transaction flows (enter/exit/manage),
    and read unified balances across 80+ networks.
  humanURL: https://docs.yield.xyz/
  baseURL: https://api.yield.xyz
  tags:
  - Staking
  - DeFi
  - Yield
  properties:
  - type: Documentation
    url: https://docs.yield.xyz/docs/getting-started
  - type: APIReference
    url: https://docs.yield.xyz/reference
  - type: GettingStarted
    url: https://docs.yield.xyz/docs/getting-started
  - type: Authentication
    url: authentication/yieldxyz-authentication.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/yieldxyz-domain-security.yml
- type: Website
  url: https://yield.xyz
- type: DeveloperPortal
  url: https://docs.yield.xyz/
- type: Documentation
  url: https://docs.yield.xyz/docs/getting-started
- type: APIReference
  url: https://docs.yield.xyz/reference
- type: GettingStarted
  url: https://docs.yield.xyz/docs/getting-started
- type: GitHubOrganization
  url: https://github.com/stakekit
- type: Support
  url: https://docs.yield.xyz/docs/faqs
- type: Pricing
  url: https://docs.yield.xyz/docs/rate-limits-and-plans
- type: SignUp
  url: https://dashboard.stakek.it/sign-up/register-interest
- type: Login
  url: https://dashboard.stakek.it/login
- type: TermsOfService
  url: https://docs.yield.xyz/docs/terms-of-use
- type: PrivacyPolicy
  url: https://docs.yield.xyz/docs/privacy-policy
- type: StatusPage
  url: https://status.yield.xyz
- type: ChangeLog
  url: https://docs.yield.xyz/changelog
- type: TrustCenter
  url: https://trust.yield.xyz
- type: LLMsTxt
  url: llms/yieldxyz-llms.txt
- type: MCPServer
  url: mcp/yieldxyz-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Packages
  url: packages/yieldxyz-packages.yml
- type: SDKs
  url: packages/yieldxyz-packages.yml
- type: Components
  url: components/yieldxyz-components.yml
- type: Authentication
  url: authentication/yieldxyz-authentication.yml
- type: Conventions
  url: conventions/yieldxyz-conventions.yml
- type: Lifecycle
  url: lifecycle/yieldxyz-lifecycle.yml
- type: Deprecation
  url: lifecycle/yieldxyz-lifecycle.yml
- type: RateLimits
  url: rate-limits/yieldxyz-rate-limits.yml
- type: DataModel
  url: data-model/yieldxyz-data-model.yml
- type: WellKnown
  url: well-known/yieldxyz-well-known.yml

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/yieldxyz"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/yieldxyz/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/yieldxyz/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.