Tesseract

Tesseract is a Finnish digital-asset management and crypto-lending company. Tesseract Investment Oy is authorised as a Crypto-Asset Service Provider (CASP) under Regulation (EU) 2023/1114 (MiCA) and supervised by the Finnish Financial Supervisory Authority (FIN-FSA). It operates institutional-grade, per-client on-chain Dedicated Client Vaults (DCVs) on Ethereum mainnet, an Earn API that lets exchanges, neobanks and fintechs offer crypto yield to their users under their own brand, and Earn Direct for referred clients. Developers integrate via a public vault reporting API (unauthenticated reads, EIP-712 signed strategy assignment) and a partner Earn API using OAuth2 client-credentials with a daily net-settlement model.

Tesseract publishes 5 APIs on the APIs.io network, including clients API, health API, insights API, and 2 more. Tagged areas include Company, Fintech, Cryptocurrency, DeFi, and Lending.

Tesseract’s developer surface includes documentation, API reference, getting-started guide, authentication, sandbox, support, engineering blog, and 19 more developer resources.

🌐 Visit website 📡 Source on GitHub

41.9/100 developing ▬ flat Agent 23/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessSelf serve

1 APIs

Company Fintech Cryptocurrency DeFi Lending Yield Digital Assets Ethereum MiCA Vault Institutional

Kin Score

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

Composite quality — 41.9/100 · developing

Contract Quality 8.4 / 23

Developer Ergonomics 11.9 / 18

Access Clarity 8.3 / 18

Operational Transparency 0.9 / 12

Contract Governance 2.0 / 11

Discoverability 6.8 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 23/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 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 0 / 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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

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/tesseract: 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 5

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

Tesseract clients API

The clients API from Tesseract — 3 operation(s) for clients.

Tesseract health API

The health API from Tesseract — 1 operation(s) for health.

Tesseract insights API

The insights API from Tesseract — 5 operation(s) for insights.

Tesseract strategies API

The strategies API from Tesseract — 2 operation(s) for strategies.

Tesseract vaults API

The vaults API from Tesseract — 4 operation(s) for vaults.

Open Collections 6

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

API Collection

OPEN COLLECTION

Tesseract Public clients API

OPEN COLLECTION

Tesseract Public clients health API

OPEN COLLECTION

Tesseract Public clients insights API

OPEN COLLECTION

Tesseract Public clients strategies API

OPEN COLLECTION

Tesseract Public clients vaults API

OPEN COLLECTION

Security Posture 2

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

Tesseract Authentication

none/signature/oauth2 · 3 schemes

SECURITY

Tesseract Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Sandbox

Sandbox

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions

Idempotency

ErrorCatalog

DataModel

Conformance

Lifecycle

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Compliance

Compliance

Operate 2

Status, limits, changes, and where to get help

Deprecation

Deprecation

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

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

Overlay

Overlay

Source (apis.yml)

aid: tesseract
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/tesseract.png
name: Tesseract
description: Tesseract is a Finnish digital-asset management and crypto-lending company. Tesseract Investment Oy is authorised
  as a Crypto-Asset Service Provider (CASP) under Regulation (EU) 2023/1114 (MiCA) and supervised by the Finnish Financial
  Supervisory Authority (FIN-FSA). It operates institutional-grade, per-client on-chain Dedicated Client Vaults (DCVs) on
  Ethereum mainnet, an Earn API that lets exchanges, neobanks and fintechs offer crypto yield to their users under their own
  brand, and Earn Direct for referred clients. Developers integrate via a public vault reporting API (unauthenticated reads,
  EIP-712 signed strategy assignment) and a partner Earn API using OAuth2 client-credentials with a daily net-settlement model.
url: https://raw.githubusercontent.com/api-evangelist/tesseract/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- sapphire-ventures
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Fintech
- Cryptocurrency
- DeFi
- Lending
- Yield
- Digital Assets
- Ethereum
- MiCA
- Vault
- Institutional
tags_raw:
- Company
- Fintech
- Cryptocurrency
- DeFi
- Lending
- Yield
- Digital Assets
- Ethereum
- MiCA
- Vaults
- Institutional
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: tesseract:tesseract-clients-api
  name: Tesseract clients API
  description: The clients API from Tesseract — 3 operation(s) for clients.
  humanURL: https://docs.tesseract.fi/dedicated-client-vaults/reference/public-api.md
  baseURL: https://api.vault.tesseract.fi
  tags:
  - Clients
  tags_raw:
  - clients
  properties:
  - type: OpenAPI
    url: openapi/tesseract-clients-api-openapi.yml
  - type: InteractiveDocumentation
    url: https://api.vault.tesseract.fi/public/docs
- aid: tesseract:tesseract-health-api
  name: Tesseract health API
  description: The health API from Tesseract — 1 operation(s) for health.
  humanURL: https://docs.tesseract.fi/dedicated-client-vaults/reference/public-api.md
  baseURL: https://api.vault.tesseract.fi
  tags:
  - Health
  tags_raw:
  - health
  properties:
  - type: OpenAPI
    url: openapi/tesseract-health-api-openapi.yml
  - type: InteractiveDocumentation
    url: https://api.vault.tesseract.fi/public/docs
- aid: tesseract:tesseract-insights-api
  name: Tesseract insights API
  description: The insights API from Tesseract — 5 operation(s) for insights.
  humanURL: https://docs.tesseract.fi/dedicated-client-vaults/reference/public-api.md
  baseURL: https://api.vault.tesseract.fi
  tags:
  - Insights
  tags_raw:
  - insights
  properties:
  - type: OpenAPI
    url: openapi/tesseract-insights-api-openapi.yml
  - type: InteractiveDocumentation
    url: https://api.vault.tesseract.fi/public/docs
- aid: tesseract:tesseract-strategies-api
  name: Tesseract strategies API
  description: The strategies API from Tesseract — 2 operation(s) for strategies.
  humanURL: https://docs.tesseract.fi/dedicated-client-vaults/reference/public-api.md
  baseURL: https://api.vault.tesseract.fi
  tags:
  - Strategies
  tags_raw:
  - strategies
  properties:
  - type: OpenAPI
    url: openapi/tesseract-strategies-api-openapi.yml
  - type: InteractiveDocumentation
    url: https://api.vault.tesseract.fi/public/docs
- aid: tesseract:tesseract-vaults-api
  name: Tesseract vaults API
  description: The vaults API from Tesseract — 4 operation(s) for vaults.
  humanURL: https://docs.tesseract.fi/dedicated-client-vaults/reference/public-api.md
  baseURL: https://api.vault.tesseract.fi
  tags:
  - Vault
  tags_raw:
  - vaults
  properties:
  - type: OpenAPI
    url: openapi/tesseract-vaults-api-openapi.yml
  - type: InteractiveDocumentation
    url: https://api.vault.tesseract.fi/public/docs
common:
- type: DomainSecurity
  url: security/tesseract-domain-security.yml
- type: Website
  url: https://tesseract.fi/
- type: DeveloperPortal
  url: https://docs.tesseract.fi/
- type: Documentation
  url: https://docs.tesseract.fi/
- type: APIReference
  url: https://api.vault.tesseract.fi/public/docs
- type: GettingStarted
  url: https://docs.tesseract.fi/dedicated-client-vaults/integration-guide.md
- type: Authentication
  url: authentication/tesseract-authentication.yml
- type: Conventions
  url: conventions/tesseract-conventions.yml
- type: Idempotency
  url: conventions/tesseract-conventions.yml
- type: ErrorCatalog
  url: errors/tesseract-problem-types.yml
- type: DataModel
  url: data-model/tesseract-data-model.yml
- type: Conformance
  url: conformance/tesseract-conformance.yml
- type: Compliance
  url: https://docs.tesseract.fi/tesseract/security-and-compliance.md
- type: Lifecycle
  url: lifecycle/tesseract-lifecycle.yml
- type: Deprecation
  url: lifecycle/tesseract-lifecycle.yml
- type: X-MCPServerCandidate
  url: mcp/tesseract-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/tesseract-llms.txt
- type: Sandbox
  url: sandbox/tesseract-sandbox.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Overlay
  url: overlays/tesseract-public-api-overlay.yaml
- type: Login
  url: https://app.tesseract.fi
- type: Support
  url: https://tesseract.fi/contact/
- type: Blog
  url: https://tesseract.fi/news/
- type: Pricing
  url: https://docs.tesseract.fi/dedicated-client-vaults/fees-and-commercial-model.md
- type: TermsOfService
  url: https://tesseract.fi/terms/
- type: PrivacyPolicy
  url: https://tesseract.fi/privacy-notice/
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 15
  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/tesseract"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/tesseract/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/tesseract/evidence"

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

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

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