Calviri

Calviri is a Phoenix, Arizona biotechnology company, founded in 2017, that develops multi-cancer diagnostic tests and therapeutic and preventative cancer vaccines for dogs and people. Its science rests on RNA-Error Derived Neoantigens (REDNs) — abnormal proteins thrown off by the error-prone RNA processing of tumor cells — which Calviri builds as peptides on semiconductor chips and then queries against an individual's blood for antibody responses, using those antibodies as sensitive biomarkers of cancer. Its lead product, StageOne Plus, is a canine multi-cancer blood test designed to detect stage 1 disease before signs appear, alongside a pipeline of canine and human therapeutic and preventative vaccines and a preventative-vaccine trial (VACCS) that enrolled 800+ dogs. Calviri is a life-sciences company with no developer program, no product API and no developer portal; the only machine-readable surface on calviri.com is the Wix-platform-generated llms.txt and the anonymous site MCP endpoint it advertises.

Calviri is listed with 1 API on the APIs.io network. Tagged areas include Company, Biotechnology, Life Sciences, Health, and Cancer Diagnostics.

Calviri’s developer surface includes YouTube channel, authentication, and 14 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

9.6/100 minimal ▬ flat Agent 5/100 human only Front door AI 1/6 silent Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessOpen

1 API 1 MCP Servers

Company Biotechnology Life Sciences Health Cancer Diagnostics Vaccines Veterinary Animal Health Research

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 9.6/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 2.0 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 6.4 / 9

Regulatory Posture 1.4 / 15

Agent readiness — 5/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 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 Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Health regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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<a href="https://apis.io/providers/calviri/"><img src="https://apis.io/badge/calviri/card.svg" alt="Calviri on APIs.io — Kin Score by API Evangelist"></a>

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)

11 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Access Clarity scores 0.0 — up to +20.0 composite points
Developer Ergonomics scores 11.9 — up to +17.6 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/calviri/apis.yml: open an issue on github.com/api-evangelist/calviri to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Veterinary & Pet Care	undeclared	-	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (platform)

Universal Commerce Protocol (UCP)

measured — observed by APIs.io (wix)

APIs 1

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

Calviri Site MCP

An anonymous Model Context Protocol endpoint served from Calviri's own host at https://www.calviri.com/_api/mcp. It is the standard Wix "Site Visitor Assistant" server that the ...

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Calviri MCP Server

Calviri serves a live, anonymous Model Context Protocol endpoint from its own host at https://www.calviri.com/_api/mcp. The endpoint is PLATFORM-PROVIDED by Wix (calviri.com is ...

MCP SERVER

Security Posture 2

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

Calviri Authentication

0 schemes

SECURITY

Calviri Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

MCPServer

MCPServer

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Company 7

The organization behind the API

Website

About

Newsroom

Careers

InvestorRelations

InvestorRelations

LinkedIn

Twitter

Twitter

Scroll for all 7

Other 4

Properties that don't map to a standard resource type

Products

Products

Science

Science

Email

SecondaryMarket

SecondaryMarket

Source (apis.yml)

aid: calviri
name: Calviri
description: Calviri is a Phoenix, Arizona biotechnology company, founded in 2017, that develops multi-cancer diagnostic tests
  and therapeutic and preventative cancer vaccines for dogs and people. Its science rests on RNA-Error Derived Neoantigens
  (REDNs) — abnormal proteins thrown off by the error-prone RNA processing of tumor cells — which Calviri builds as peptides
  on semiconductor chips and then queries against an individual's blood for antibody responses, using those antibodies as
  sensitive biomarkers of cancer. Its lead product, StageOne Plus, is a canine multi-cancer blood test designed to detect
  stage 1 disease before signs appear, alongside a pipeline of canine and human therapeutic and preventative vaccines and
  a preventative-vaccine trial (VACCS) that enrolled 800+ dogs. Calviri is a life-sciences company with no developer program,
  no product API and no developer portal; the only machine-readable surface on calviri.com is the Wix-platform-generated llms.txt
  and the anonymous site MCP endpoint it advertises.
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: open
  trial: false
  try_now: false
  public: true
  gated: none
  gated_source:
  - onboarding
  label: Open access
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://static.wixstatic.com/media/0c6e92_2823fb63b9514e718b52ff84460faf97~mv2.png/v1/fill/w_192,h_192,lg_1,usm_0.66_1.00_0.01/0c6e92_2823fb63b9514e718b52ff84460faf97~mv2.png
url: https://raw.githubusercontent.com/api-evangelist/calviri/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-enrichment:
  date: '2026-08-09'
  status: enriched
  artifacts_added: 6
  pass: local-v1
specificationVersion: '0.23'
created: '2026-08-09'
modified: '2026-08-09'
tags:
- Company
- Biotechnology
- Life Sciences
- Health
- Cancer Diagnostics
- Vaccines
- Veterinary
- Animal Health
- Research
apis:
- name: Calviri Site MCP
  description: An anonymous Model Context Protocol endpoint served from Calviri's own host at https://www.calviri.com/_api/mcp.
    It is the standard Wix "Site Visitor Assistant" server that the Wix platform provisions for every site — not an API Calviri
    built — but it is live and callable without credentials, and `initialize` plus `tools/list` both returned 200 on 2026-08-09
    exposing nine tools (GetBusinessDetails, SearchInSite, SearchSiteApiDocs, GenerateVisitorToken, CallWixSiteAPI, ExecuteWixAPI,
    BrowseWixRESTDocsMenu, ReadFullDocsArticle, ReadFullDocsMethodSchema). It reads only information that is already public
    on the website.
  humanURL: https://www.calviri.com/
  baseURL: https://www.calviri.com/_api/mcp
  tags:
  - MCP
  - Agents
  - Websites
  tags_raw:
  - MCP
  - Agent
  - Website
  x-platform: wix
  x-first-party: false
  properties:
  - type: MCPServer
    url: mcp/calviri-mcp.yml
  - type: Authentication
    url: authentication/calviri-authentication.yml
  x-surface: platform-generated
  x-platform-surface: site-mcp
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/calviri-domain-security.yml
- type: Website
  url: https://www.calviri.com/
- type: About
  url: https://www.calviri.com/about-us
- type: Newsroom
  url: https://www.calviri.com/newsroom
- type: Careers
  url: https://www.calviri.com/careers
- type: InvestorRelations
  url: https://www.calviri.com/investor-relations
- type: Products
  url: https://www.calviri.com/ourproducts
- type: Science
  url: https://www.calviri.com/our-science
- type: Email
  url: mailto:info@calviri.com
- type: LinkedIn
  url: https://www.linkedin.com/company/calviri
- type: YouTube
  url: https://www.youtube.com/channel/UCQF7bNAdJWrIYyhNO7RNaKg
- type: Twitter
  url: https://x.com/CalviriSciences
- type: SecondaryMarket
  url: https://forgeglobal.com/calviri_stock/
- type: LLMsTxt
  url: llms/calviri-llms.txt
- type: MCPServer
  url: mcp/calviri-mcp.yml
- type: Authentication
  url: authentication/calviri-authentication.yml

Calviri API — frequently asked questions

Does Calviri have an API?

Yes. APIs.io lists 1 API from Calviri, including Calviri Site MCP.

How do I authenticate with the Calviri API?

Calviri uses bearer-token authentication (0 schemes). The details are profiled on APIs.io as Calviri Authentication.

Does Calviri have an MCP server?

Yes. APIs.io lists 1 MCP server for Calviri: Calviri serves a live, anonymous Model Context Protocol endpoint from its own host at https://www.calviri.com/_api/mcp. The endpoint is PLATFORM-PROVIDED by Wix (calviri.com is a Wix site) rather than

Is the Calviri API ready for AI agents?

Calviri has a Kin Score of 9.6 out of 100 (minimal) and an Agent Readiness score of 4.7 (human-only), scored by API Evangelist on 2026-11-06.

Work with this as data

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MCP server

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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.

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