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
14.0/100 emerging ▬ flat Agent 0/100 human only saas Full breakdown ↓
scored 2026-08-30 · rubric v0.17.2
0 APIs
CompanyCryptoDeFiBlockchainLiquidityLendingBorrowingSynthetic AssetsOmnichainStakingWeb3Liquid Staking

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-30 · rubric v0.17.2
Composite quality — 14.0/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 7.6 / 20
Access Clarity 0.0 / 20
Operational Transparency 0.7 / 13
Contract Governance 0.0 / 12
Discoverability 5.7 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
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
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 Surface 0 / 5
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 →

Security Posture 1

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

Sumer Domain Security

TLSv1.3 · DMARC

SECURITY

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
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: 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/sumer.png
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: '0.23'
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

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/sumer"
All providers 
curl "https://apis.io/api/v1/providers?limit=25"
Every operation they expose 
curl "https://apis.io/api/v1/providers/sumer/operations?limit=25"
How their score was established 
curl "https://apis.io/api/v1/providers/sumer/evidence"

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

Get an API key

Free tier, no email required.

GitHub Google LinkedIn

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