Sommelier

Sommelier (rebranding to "Somm") is a decentralized asset-management and DeFi vault protocol whose smart-contract "cellars" run automated yield strategies on Ethereum. It publishes a public, read-only HTTP API that exposes on-chain vault performance data — daily and hourly snapshots (APY, TVL, share price, total assets), protocol-wide total value locked, per-cellar snapshots, and integration datasets for Kelp and ether.fi points and balances. All endpoints are unauthenticated GET requests with path-based parameters and a { "Response": ... } envelope; the API currently serves the ethereum network. Backed by Multicoin Capital.

Sommelier publishes 3 APIs on the APIs.io network: Integrations API, Protocol API, and Vault Data API. Tagged areas include Company, Crypto Web3, DeFi, Blockchain, and Ethereum.

Sommelier’s developer surface includes authentication and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub

28.7/100 thin ▬ flat Agent 22/100 agent aware Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

3 APIs

Company Crypto Web3 DeFi Blockchain Ethereum Vault Yield Analytics

Kin Score

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

Composite quality — 28.7/100 · thin

Contract Quality 12.0 / 25

Developer Ergonomics 8.0 / 20

Access Clarity 0.0 / 20

Operational Transparency 0.0 / 13

Contract Governance 0.5 / 12

Discoverability 8.2 / 10

Agent readiness — 22/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 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 4 / 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 does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

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/sommelier: 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 3

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

Sommelier Integrations API

Integration-specific datasets (Kelp, ether.fi).

Sommelier Protocol API

Protocol-wide metrics such as total value locked.

Sommelier Vault Data API

Daily and hourly performance snapshots of Sommelier vaults (cellars).

Open Collections 4

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Sommelier Finance Integrations API

OPEN COLLECTION

Sommelier Finance Integrations Protocol API

OPEN COLLECTION

Sommelier Finance Integrations Vault Data API

OPEN COLLECTION

Security Posture 2

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

Sommelier Authentication

none · 0 schemes

SECURITY

Sommelier Domain Security

TLSv1.3 · HSTS · DNSSEC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Conventions

Conventions

DataModel

DataModel

Conformance

Conformance

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: sommelier
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/sommelier.png
name: Sommelier
description: 'Sommelier (rebranding to "Somm") is a decentralized asset-management and DeFi vault protocol whose smart-contract
  "cellars" run automated yield strategies on Ethereum. It publishes a public, read-only HTTP API that exposes on-chain vault
  performance data — daily and hourly snapshots (APY, TVL, share price, total assets), protocol-wide total value locked, per-cellar
  snapshots, and integration datasets for Kelp and ether.fi points and balances. All endpoints are unauthenticated GET requests
  with path-based parameters and a { "Response": ... } envelope; the API currently serves the ethereum network. Backed by
  Multicoin Capital.'
url: https://raw.githubusercontent.com/api-evangelist/sommelier/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: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Crypto Web3
- DeFi
- Blockchain
- Ethereum
- Vault
- Yield
- Analytics
tags_raw:
- Company
- Crypto Web3
- DeFi
- Blockchain
- Ethereum
- Vaults
- Yield
- Analytics
apis:
- aid: sommelier:sommelier-integrations-api
  name: Sommelier Integrations API
  description: Integration-specific datasets (Kelp, ether.fi).
  humanURL: https://api.sommelier.finance/
  baseURL: https://api.sommelier.finance
  tags:
  - Integration
  tags_raw:
  - Integrations
  properties:
  - type: OpenAPI
    url: openapi/sommelier-integrations-api-openapi.yml
  - type: Documentation
    url: https://api.sommelier.finance/
  - type: APIReference
    url: https://api.sommelier.finance/
- aid: sommelier:sommelier-protocol-api
  name: Sommelier Protocol API
  description: Protocol-wide metrics such as total value locked.
  humanURL: https://api.sommelier.finance/
  baseURL: https://api.sommelier.finance
  tags:
  - Protocol
  properties:
  - type: OpenAPI
    url: openapi/sommelier-protocol-api-openapi.yml
  - type: Documentation
    url: https://api.sommelier.finance/
  - type: APIReference
    url: https://api.sommelier.finance/
- aid: sommelier:sommelier-vault-data-api
  name: Sommelier Vault Data API
  description: Daily and hourly performance snapshots of Sommelier vaults (cellars).
  humanURL: https://api.sommelier.finance/
  baseURL: https://api.sommelier.finance
  tags:
  - Vault Data
  properties:
  - type: OpenAPI
    url: openapi/sommelier-vault-data-api-openapi.yml
  - type: Documentation
    url: https://api.sommelier.finance/
  - type: APIReference
    url: https://api.sommelier.finance/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.somm.finance
- type: DeveloperPortal
  url: https://api.sommelier.finance/
- type: DomainSecurity
  url: security/sommelier-domain-security.yml
- type: Authentication
  url: authentication/sommelier-authentication.yml
- type: Conventions
  url: conventions/sommelier-conventions.yml
- type: DataModel
  url: data-model/sommelier-data-model.yml
- type: Conformance
  url: conformance/sommelier-conformance.yml
- type: X-MCPServerCandidate
  url: mcp/sommelier-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: LLMsTxt
  url: llms/sommelier-llms.txt
- type: Overlay
  url: overlays/sommelier-api-overlay.yaml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 12
  pass: local-v1

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