Sumer

Sumer (Sumer.Money) is a blockchain liquidity infrastructure protocol positioning itself as the most capital-efficient way to put crypto assets to work across chains. Users deposit native assets such as liquid staked ETH, and Sumer's correlation-aware risk engine matches assets and liabilities to mint synthetic suTokens (suETH, suUSD) that act as "money multipliers" — travelling across connected blockchains as collateral while the underlying deposit keeps accruing staking rewards and lending interest. The protocol runs an omnichain lending/borrowing market, a points and veSumer staking program, and its Supernova EVM chain, drawing price data from Chainlink, Pyth, RedStone, and Supra oracles. Backed by Pantera Capital and other crypto investors, with contracts audited by Certik, Ancilia, Tikkala, and CD Security.

Sumer is profiled on the APIs.io network. Tagged areas include Company, Crypto, DeFi, Blockchain, and Liquidity.

Sumer’s developer surface includes documentation, getting-started guide, engineering blog, support, signup flow, and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub
17.2/100 emerging Agent 0/100 human only Full breakdown ↓
scored 2026-07-21 · rubric v0.4
0 APIs 0 Features
CompanyCryptoDeFiBlockchainLiquidityLendingBorrowingSynthetic AssetsOmnichainStakingWeb3Liquid Staking

API Rating

API Evangelist API Evangelist Rating How this is scored →
scored 2026-07-21 · rubric v0.4
Composite quality — 17.2/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 7.0 / 20
Commercial Clarity 2.6 / 20
Operational Transparency 1.4 / 13
Governance 0.0 / 12
Discoverability 6.3 / 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/sumer: 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

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp

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 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Roadmap
Roadmap
 Support
Support

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: sumer
name: Sumer
description: Sumer (Sumer.Money) is a blockchain liquidity infrastructure protocol positioning itself as the most capital-efficient
  way to put crypto assets to work across chains. Users deposit native assets such as liquid staked ETH, and Sumer's correlation-aware
  risk engine matches assets and liabilities to mint synthetic suTokens (suETH, suUSD) that act as "money multipliers" — travelling
  across connected blockchains as collateral while the underlying deposit keeps accruing staking rewards and lending interest.
  The protocol runs an omnichain lending/borrowing market, a points and veSumer staking program, and its Supernova EVM chain,
  drawing price data from Chainlink, Pyth, RedStone, and Supra oracles. Backed by Pantera Capital and other crypto investors,
  with contracts audited by Certik, Ancilia, Tikkala, and CD Security.
url: https://raw.githubusercontent.com/api-evangelist/sumer/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- pantera-capital
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Crypto
- DeFi
- Blockchain
- Liquidity
- Lending
- Borrowing
- Synthetic Assets
- Omnichain
- Staking
- Web3
- Liquid Staking
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.sumer.money/
- type: Documentation
  url: https://docs.sumer.money
- type: DeveloperPortal
  url: https://docs.sumer.money/developers/smart-contracts
- type: GettingStarted
  url: https://docs.sumer.money/tutorials/how-to-deposit-assets
- type: Blog
  url: https://medium.com/sumer-money
- type: GitHubOrganization
  url: https://github.com/meterio/sumer-contracts
- type: Roadmap
  url: https://www.sumer.money/#roadmap
- type: Support
  url: https://discord.gg/dxpguv3vtU
- type: SignUp
  url: https://app.sumer.money
- type: LLMsTxt
  url: llms/sumer-llms.txt
- type: DomainSecurity
  url: security/sumer-domain-security.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 2
  pass: local-v1