April

April (aPriori, apr.io) is a MEV-powered liquid staking protocol on the Monad blockchain. Users stake MON tokens through aPriori's self-custodial staking vault and receive aprMON, a reward-bearing liquid staking token that accrues proof-of-stake plus MEV yield and can be used across Monad DeFi while retaining full custody. The protocol also operates Swapr (a DEX aggregator), an order-flow segmentation and MEV infrastructure layer, and the $APR token with an APR Boost rewards program. aPriori is documented on GitBook with an introduction, a Monad testnet guide, a MON faucet guide, and a smart-contract integration reference; it is a smart-contract protocol rather than a keyed REST API. Surfaced into the API Evangelist network as a crypto portfolio lead.

April is profiled on the APIs.io network. Tagged areas include Company, Crypto, Blockchain, DeFi, and Liquid Staking.

April’s developer surface includes documentation, getting-started guide, engineering blog, signup flow, sandbox, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

19.9/100 emerging Agent 0/100 human only Full breakdown ↓
scored 2026-07-21 · rubric v0.4

0 APIs 0 Features

CompanyCryptoBlockchainDeFiLiquid StakingMonadMEVStakingWeb3

API Rating

API Evangelist Rating How this is scored →
scored 2026-07-21 · rubric v0.4

Composite quality — 19.9/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 5.7 / 20

Commercial Clarity 6.8 / 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

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/april: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Resources

Get Started 3

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

SignUp

SignUp

Sandbox

Sandbox

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Roadmap

Roadmap

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

Blog

Blog

Careers

Careers

Other 1

Properties that don't map to a standard resource type

Whitepaper

Whitepaper

Source (apis.yml)

aid: april
name: April
description: April (aPriori, apr.io) is a MEV-powered liquid staking protocol on the Monad blockchain. Users stake MON tokens
  through aPriori's self-custodial staking vault and receive aprMON, a reward-bearing liquid staking token that accrues proof-of-stake
  plus MEV yield and can be used across Monad DeFi while retaining full custody. The protocol also operates Swapr (a DEX aggregator),
  an order-flow segmentation and MEV infrastructure layer, and the $APR token with an APR Boost rewards program. aPriori is
  documented on GitBook with an introduction, a Monad testnet guide, a MON faucet guide, and a smart-contract integration
  reference; it is a smart-contract protocol rather than a keyed REST API. Surfaced into the API Evangelist network as a crypto
  portfolio lead.
url: https://raw.githubusercontent.com/api-evangelist/april/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- pantera-capital
- qed-investors
x-tier: stub
x-tier-reason: portfolio-lead
x-identity-note: apis.yml website apr.io resolves to aPriori (aprMON MEV liquid staking on Monad), a crypto protocol. QED
  Investors' portfolio company named "April" is a separate embedded-tax platform (getapril.com); the two were conflated during
  stub generation. This repo is enriched for the apr.io / aPriori entity.
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Crypto
- Blockchain
- DeFi
- Liquid Staking
- Monad
- MEV
- Staking
- Web3
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
image: https://www.apr.io/opengraph-image.jpg
common:
- type: Website
  url: https://www.apr.io/
- type: Documentation
  url: https://aprlabs.gitbook.io/apriori-docs
  name: aPriori Docs (GitBook)
- type: GettingStarted
  url: https://apriori-docs.gitbook.io/apriori-docs/introduction-to-apriori
  name: Introduction to aPriori
- type: Roadmap
  url: https://apriori-docs.gitbook.io/apriori-docs/growth/roadmap
  name: Roadmap
- type: Blog
  url: https://0xapr.substack.com/
  name: aPriori Substack
- type: SignUp
  url: https://stake.apr.io/
  name: aPriori Staking App
- type: TermsOfService
  url: https://www.notion.so/apriorimev/aPriori-Network-Inc-Terms-of-Use-7079e2f8b4a24e6daf52141090fb15ea
- type: PrivacyPolicy
  url: https://www.notion.so/apriorimev/aPriori-Network-Inc-Privacy-Policy-9792521a7be44bcb8fb8e850980c4343
- type: Whitepaper
  url: https://www.apr.io/whitepaper.pdf
  name: MiCA White Paper aPriori (APR) v1.0
- type: Careers
  url: https://job-boards.greenhouse.io/apr
- type: Sandbox
  url: sandbox/april-sandbox.yml
- type: LLMsTxt
  url: llms/april-llms.txt
- type: DomainSecurity
  url: security/april-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence