FastLane

FastLane Labs is a blockchain infrastructure provider building maximal extractable value (MEV) and liquid staking products on the Monad blockchain. Its core products are shMON, a liquid staking token that pairs staking rewards with revenue from FastLane's on-chain MEV auction and holds the majority of Monad's liquid-staking TVL; Smart Vault, a USDC-denominated yield product; and hMON, a yield-donation token. FastLane operates a public, on-chain MEV auction that a majority of Monad validators route blocks through, exposing developer surfaces for searchers (the FastLane Sidecar and auction-handler contracts), validators (a Leader API and validator onboarding), and stakers. It also maintains Atlas, an open-source execution-abstraction framework, with a Go SDK and JSON-RPC tooling published on GitHub. Developer integration is via JSON-RPC APIs and Solidity smart contracts rather than a REST/OpenAPI catalog.

FastLane is profiled on the APIs.io network. Tagged areas include Company, Crypto Web3, Blockchain, MEV, and Liquid Staking.

FastLane’s developer surface includes documentation, getting-started guide, engineering blog, support, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub

19.9/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanyCrypto Web3BlockchainMEVLiquid StakingDeFiMonadStakingJSON-RPC

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 19.9/100 · emerging

Contract Quality 0.0 / 25

Developer Ergonomics 8.3 / 20

Commercial Clarity 4.2 / 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/fastlane: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: fastlane
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/fastlane.png
name: FastLane
description: FastLane Labs is a blockchain infrastructure provider building maximal extractable value (MEV) and liquid staking
  products on the Monad blockchain. Its core products are shMON, a liquid staking token that pairs staking rewards with revenue
  from FastLane's on-chain MEV auction and holds the majority of Monad's liquid-staking TVL; Smart Vault, a USDC-denominated
  yield product; and hMON, a yield-donation token. FastLane operates a public, on-chain MEV auction that a majority of Monad
  validators route blocks through, exposing developer surfaces for searchers (the FastLane Sidecar and auction-handler contracts),
  validators (a Leader API and validator onboarding), and stakers. It also maintains Atlas, an open-source execution-abstraction
  framework, with a Go SDK and JSON-RPC tooling published on GitHub. Developer integration is via JSON-RPC APIs and Solidity
  smart contracts rather than a REST/OpenAPI catalog.
url: https://raw.githubusercontent.com/api-evangelist/fastlane/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
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Crypto Web3
- Blockchain
- MEV
- Liquid Staking
- DeFi
- Monad
- Staking
- JSON-RPC
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://fastlane.xyz
- type: DeveloperPortal
  url: https://docs.shmonad.xyz
- type: Documentation
  url: https://docs.shmonad.xyz
- type: GettingStarted
  url: https://docs.shmonad.xyz
- type: GitHubOrganization
  url: https://github.com/FastLane-Labs
- type: Blog
  url: https://fastlane.xyz/blog
- type: Support
  url: https://discord.fastlane.xyz
- type: TermsOfService
  url: https://fastlane.xyz/legal/terms-of-service
- type: PrivacyPolicy
  url: https://fastlane.xyz/legal/privacy-policy
- type: X
  url: https://x.com/0xFastLane
- type: Packages
  url: packages/fastlane-packages.yml
- type: SDKs
  url: packages/fastlane-packages.yml
- type: DomainSecurity
  url: security/fastlane-domain-security.yml
- type: LLMsTxt
  url: llms/fastlane-llms.txt
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence