Conxai website screenshot

Conxai

Conxai (CONXAI Technologies GmbH) is a Munich, Germany-based startup building a no-code, agentic AI platform purpose-built for the construction and AEC (architecture, engineering, construction) industry. The modular platform contextualizes fragmented project-lifecycle data — site photos and video, documents, CAD drawings and tender submissions — and turns it into actionable knowledge across three areas: transparency, automation, and knowledge management. Marquee products include SiteLens (real-time construction-site camera analysis, progress tracking and firestop detection) and DocNostic (document extraction, classification and workflow automation). Conxai exposes several REST APIs — a Customer/SiteLens API, a Docnostic document API, a Firestop API and a Production Tracking API — documented on ReadMe and secured with an X-Api-Key header (Docnostic also accepts a JWT bearer token). The company is backed by Earlybird, Pi Labs, Cemex Ventures, Zacua Ventures, Capricorn Partners and BayBG Venture Capital.

Conxai publishes 17 APIs on the APIs.io network, including annotations API, camera API, document-types API, and 14 more. Tagged areas include Company, Construction, AEC, Artificial Intelligence, and Document Processing.

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

40.7/100 developing ▬ flat Agent 26/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
4 APIs
CompanyConstructionAECArtificial IntelligenceDocument ProcessingComputer-VisionAgentic AIMachine-Learning

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
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/conxai: 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 17

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

Conxai annotations API

The annotations API from Conxai — 1 operation(s) for annotations.

Conxai camera API

The camera API from Conxai — 4 operation(s) for camera.

Conxai document-types API

The document-types API from Conxai — 4 operation(s) for document-types.

Conxai documents API

The documents API from Conxai — 26 operation(s) for documents.

Conxai exports API

The exports API from Conxai — 2 operation(s) for exports.

Conxai Images API

The Images API from Conxai — 2 operation(s) for images.

Conxai integrations API

The integrations API from Conxai — 5 operation(s) for integrations.

Conxai production_tracking API

The production_tracking API from Conxai — 4 operation(s) for production_tracking.

Conxai project API

The project API from Conxai — 5 operation(s) for project.

Conxai projects API

The projects API from Conxai — 2 operation(s) for projects.

Conxai samples API

The samples API from Conxai — 16 operation(s) for samples.

Conxai schema API

The schema API from Conxai — 1 operation(s) for schema.

Conxai summary-table API

The summary-table API from Conxai — 12 operation(s) for summary-table.

Conxai use-cases API

The use-cases API from Conxai — 6 operation(s) for use-cases.

Conxai users API

The users API from Conxai — 3 operation(s) for users.

Conxai workflow API

The workflow API from Conxai — 3 operation(s) for workflow.

Conxai workflow-table API

The workflow-table API from Conxai — 3 operation(s) for workflow-table.

Scroll for all 17

Open Collections 18

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

API Collection

OPEN COLLECTION

Customer annotations API

OPEN COLLECTION

Scroll for all 18

Security Posture 3

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

Conxai Authentication

apiKey · 3 schemes

SECURITY

Conxai Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Conxai Trust Center

SOC 2, ISO 27001:2022

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Conxai Agentic Access

114 operations · 63 acting · 2 human-in-the-loop

114 operations · 63 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Access & Security 4

Authentication, authorization, and security posture

Operate 1

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 3

The organization behind the API

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: conxai
name: Conxai
description: 'Conxai (CONXAI Technologies GmbH) is a Munich, Germany-based startup building a no-code, agentic AI platform
  purpose-built for the construction and AEC (architecture, engineering, construction) industry. The modular platform contextualizes
  fragmented project-lifecycle data — site photos and video, documents, CAD drawings and tender submissions — and turns it
  into actionable knowledge across three areas: transparency, automation, and knowledge management. Marquee products include
  SiteLens (real-time construction-site camera analysis, progress tracking and firestop detection) and DocNostic (document
  extraction, classification and workflow automation). Conxai exposes several REST APIs — a Customer/SiteLens API, a Docnostic
  document API, a Firestop API and a Production Tracking API — documented on ReadMe and secured with an X-Api-Key header (Docnostic
  also accepts a JWT bearer token). The company is backed by Earlybird, Pi Labs, Cemex Ventures, Zacua Ventures, Capricorn
  Partners and BayBG Venture Capital.'
url: https://raw.githubusercontent.com/api-evangelist/conxai/refs/heads/main/apis.yml
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://cdn.prod.website-files.com/6768048a3496e563be715576/676ffd7357fd1eda32f52ca3_OG.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- earlybird
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Construction
- AEC
- Artificial Intelligence
- Document Processing
- Computer-Vision
- Agentic AI
- Machine-Learning
tags_raw:
- Company
- Construction
- AEC
- Artificial Intelligence
- Document Processing
- Computer Vision
- Agentic AI
- Machine Learning
apis:
- aid: conxai:conxai-annotations-api
  name: Conxai annotations API
  description: The annotations API from Conxai — 1 operation(s) for annotations.
  humanURL: https://conxai.readme.io/reference/sitelens-integration-steps
  baseURL: https://customer.conxai.ai
  tags:
  - Annotations
  tags_raw:
  - annotations
  properties:
  - type: OpenAPI
    url: openapi/conxai-annotations-api-openapi.yml
  - type: Documentation
    url: https://conxai.readme.io/reference/sitelens-integration-steps
  - type: APIReference
    url: https://conxai.readme.io/reference/post_project
  - type: APIReference
    url: https://conxai.readme.io/reference/post_projects
  - type: APIReference
    url: https://conxai.readme.io/reference/post_images
  - type: APIReference
    url: https://conxai.readme.io/reference/get_weather-1
- aid: conxai:conxai-camera-api
  name: Conxai camera API
  description: The camera API from Conxai — 4 operation(s) for camera.
  humanURL: https://conxai.readme.io/reference/sitelens-integration-steps
  baseURL: https://customer.conxai.ai
  tags:
  - Camera
  tags_raw:
  - camera
  properties:
  - type: OpenAPI
    url: openapi/conxai-camera-api-openapi.yml
  - type: Documentation
    url: https://conxai.readme.io/reference/sitelens-integration-steps
  - type: APIReference
    url: https://conxai.readme.io/reference/post_project
  - type: APIReference
    url: https://conxai.readme.io/reference/post_projects
  - type: APIReference
    url: https://conxai.readme.io/reference/post_images
  - type: APIReference
    url: https://conxai.readme.io/reference/get_weather-1
- aid: conxai:conxai-document-types-api
  name: Conxai document-types API
  description: The document-types API from Conxai — 4 operation(s) for document-types.
  humanURL: https://conxai.readme.io/reference/sitelens-integration-steps
  baseURL: https://customer.conxai.ai
  tags:
  - Document Types
  tags_raw:
  - document-types
  properties:
  - type: OpenAPI
    url: openapi/conxai-document-types-api-openapi.yml
  - type: Documentation
    url: https://conxai.readme.io/reference/sitelens-integration-steps
  - type: APIReference
    url: https://conxai.readme.io/reference/post_project
  - type: APIReference
    url: https://conxai.readme.io/reference/post_projects
  - type: APIReference
    url: https://conxai.readme.io/reference/post_images
  - type: APIReference
    url: https://conxai.readme.io/reference/get_weather-1
- aid: conxai:conxai-documents-api
  name: Conxai documents API
  description: The documents API from Conxai — 26 operation(s) for documents.
  humanURL: https://conxai.readme.io/reference/sitelens-integration-steps
  baseURL: https://customer.conxai.ai
  tags:
  - Documents
  tags_raw:
  - documents
  properties:
  - type: OpenAPI
    url: openapi/conxai-documents-api-openapi.yml
  - type: Documentation
    url: https://conxai.readme.io/reference/sitelens-integration-steps
  - type: APIReference
    url: https://conxai.readme.io/reference/post_project
  - type: APIReference
    url: https://conxai.readme.io/reference/post_projects
  - type: APIReference
    url: https://conxai.readme.io/reference/post_images
  - type: APIReference
    url: https://conxai.readme.io/reference/get_weather-1
- aid: conxai:conxai-exports-api
  name: Conxai exports API
  description: The exports API from Conxai — 2 operation(s) for exports.
  humanURL: https://conxai.readme.io/reference/sitelens-integration-steps
  baseURL: https://customer.conxai.ai
  tags:
  - Export
  tags_raw:
  - exports
  properties:
  - type: OpenAPI
    url: openapi/conxai-exports-api-openapi.yml
  - type: Documentation
    url: https://conxai.readme.io/reference/sitelens-integration-steps
  - type: APIReference
    url: https://conxai.readme.io/reference/post_project
  - type: APIReference
    url: https://conxai.readme.io/reference/post_projects
  - type: APIReference
    url: https://conxai.readme.io/reference/post_images
  - type: APIReference
    url: https://conxai.readme.io/reference/get_weather-1
- aid: conxai:conxai-images-api
  name: Conxai Images API
  description: The Images API from Conxai — 2 operation(s) for images.
  humanURL: https://conxai.readme.io/reference/sitelens-integration-steps
  baseURL: https://customer.conxai.ai
  tags:
  - Image
  tags_raw:
  - Images
  properties:
  - type: OpenAPI
    url: openapi/conxai-images-api-openapi.yml
  - type: Documentation
    url: https://conxai.readme.io/reference/sitelens-integration-steps
  - type: APIReference
    url: https://conxai.readme.io/reference/post_project
  - type: APIReference
    url: https://conxai.readme.io/reference/post_projects
  - type: APIReference
    url: https://conxai.readme.io/reference/post_images
  - type: APIReference
    url: https://conxai.readme.io/reference/get_weather-1
- aid: conxai:conxai-integrations-api
  name: Conxai integrations API
  description: The integrations API from Conxai — 5 operation(s) for integrations.
  humanURL: https://conxai.readme.io/reference/sitelens-integration-steps
  baseURL: https://customer.conxai.ai
  tags:
  - Integration
  tags_raw:
  - integrations
  properties:
  - type: OpenAPI
    url: openapi/conxai-integrations-api-openapi.yml
  - type: Documentation
    url: https://conxai.readme.io/reference/sitelens-integration-steps
  - type: APIReference
    url: https://conxai.readme.io/reference/post_project
  - type: APIReference
    url: https://conxai.readme.io/reference/post_projects
  - type: APIReference
    url: https://conxai.readme.io/reference/post_images
  - type: APIReference
    url: https://conxai.readme.io/reference/get_weather-1
- aid: conxai:conxai-production-tracking-api
  name: Conxai production_tracking API
  description: The production_tracking API from Conxai — 4 operation(s) for production_tracking.
  humanURL: https://conxai.readme.io/reference/sitelens-integration-steps
  baseURL: https://customer.conxai.ai
  tags:
  - Production Tracking
  tags_raw:
  - production_tracking
  properties:
  - type: OpenAPI
    url: openapi/conxai-production-tracking-api-openapi.yml
  - type: Documentation
    url: https://conxai.readme.io/reference/sitelens-integration-steps
  - type: APIReference
    url: https://conxai.readme.io/reference/post_project
  - type: APIReference
    url: https://conxai.readme.io/reference/post_projects
  - type: APIReference
    url: https://conxai.readme.io/reference/post_images
  - type: APIReference
    url: https://conxai.readme.io/reference/get_weather-1
- aid: conxai:conxai-project-api
  name: Conxai project API
  description: The project API from Conxai — 5 operation(s) for project.
  humanURL: https://conxai.readme.io/reference/sitelens-integration-steps
  baseURL: https://customer.conxai.ai
  tags:
  - Project
  tags_raw:
  - project
  properties:
  - type: OpenAPI
    url: openapi/conxai-project-api-openapi.yml
  - type: Documentation
    url: https://conxai.readme.io/reference/sitelens-integration-steps
  - type: APIReference
    url: https://conxai.readme.io/reference/post_project
  - type: APIReference
    url: https://conxai.readme.io/reference/post_projects
  - type: APIReference
    url: https://conxai.readme.io/reference/post_images
  - type: APIReference
    url: https://conxai.readme.io/reference/get_weather-1
- aid: conxai:conxai-projects-api
  name: Conxai projects API
  description: The projects API from Conxai — 2 operation(s) for projects.
  humanURL: https://conxai.readme.io/reference/sitelens-integration-steps
  baseURL: https://customer.conxai.ai
  tags:
  - Project
  tags_raw:
  - projects
  properties:
  - type: OpenAPI
    url: openapi/conxai-projects-api-openapi.yml
  - type: Documentation
    url: https://conxai.readme.io/reference/sitelens-integration-steps
  - type: APIReference
    url: https://conxai.readme.io/reference/post_project
  - type: APIReference
    url: https://conxai.readme.io/reference/post_projects
  - type: APIReference
    url: https://conxai.readme.io/reference/post_images
  - type: APIReference
    url: https://conxai.readme.io/reference/get_weather-1
- aid: conxai:conxai-samples-api
  name: Conxai samples API
  description: The samples API from Conxai — 16 operation(s) for samples.
  humanURL: https://conxai.readme.io/reference/sitelens-integration-steps
  baseURL: https://customer.conxai.ai
  tags:
  - Samples
  tags_raw:
  - samples
  properties:
  - type: OpenAPI
    url: openapi/conxai-samples-api-openapi.yml
  - type: Documentation
    url: https://conxai.readme.io/reference/sitelens-integration-steps
  - type: APIReference
    url: https://conxai.readme.io/reference/post_project
  - type: APIReference
    url: https://conxai.readme.io/reference/post_projects
  - type: APIReference
    url: https://conxai.readme.io/reference/post_images
  - type: APIReference
    url: https://conxai.readme.io/reference/get_weather-1
- aid: conxai:conxai-schema-api
  name: Conxai schema API
  description: The schema API from Conxai — 1 operation(s) for schema.
  humanURL: https://conxai.readme.io/reference/sitelens-integration-steps
  baseURL: https://customer.conxai.ai
  tags:
  - Schema
  tags_raw:
  - schema
  properties:
  - type: OpenAPI
    url: openapi/conxai-schema-api-openapi.yml
  - type: Documentation
    url: https://conxai.readme.io/reference/sitelens-integration-steps
  - type: APIReference
    url: https://conxai.readme.io/reference/post_project
  - type: APIReference
    url: https://conxai.readme.io/reference/post_projects
  - type: APIReference
    url: https://conxai.readme.io/reference/post_images
  - type: APIReference
    url: https://conxai.readme.io/reference/get_weather-1
- aid: conxai:conxai-summary-table-api
  name: Conxai summary-table API
  description: The summary-table API from Conxai — 12 operation(s) for summary-table.
  humanURL: https://conxai.readme.io/reference/sitelens-integration-steps
  baseURL: https://customer.conxai.ai
  tags:
  - summary-table
  properties:
  - type: OpenAPI
    url: openapi/conxai-summary-table-api-openapi.yml
  - type: Documentation
    url: https://conxai.readme.io/reference/sitelens-integration-steps
  - type: APIReference
    url: https://conxai.readme.io/reference/post_project
  - type: APIReference
    url: https://conxai.readme.io/reference/post_projects
  - type: APIReference
    url: https://conxai.readme.io/reference/post_images
  - type: APIReference
    url: https://conxai.readme.io/reference/get_weather-1
- aid: conxai:conxai-use-cases-api
  name: Conxai use-cases API
  description: The use-cases API from Conxai — 6 operation(s) for use-cases.
  humanURL: https://conxai.readme.io/reference/sitelens-integration-steps
  baseURL: https://customer.conxai.ai
  tags:
  - Use Cases
  tags_raw:
  - use-cases
  properties:
  - type: OpenAPI
    url: openapi/conxai-use-cases-api-openapi.yml
  - type: Documentation
    url: https://conxai.readme.io/reference/sitelens-integration-steps
  - type: APIReference
    url: https://conxai.readme.io/reference/post_project
  - type: APIReference
    url: https://conxai.readme.io/reference/post_projects
  - type: APIReference
    url: https://conxai.readme.io/reference/post_images
  - type: APIReference
    url: https://conxai.readme.io/reference/get_weather-1
- aid: conxai:conxai-users-api
  name: Conxai users API
  description: The users API from Conxai — 3 operation(s) for users.
  humanURL: https://conxai.readme.io/reference/sitelens-integration-steps
  baseURL: https://customer.conxai.ai
  tags:
  - User
  tags_raw:
  - users
  properties:
  - type: OpenAPI
    url: openapi/conxai-users-api-openapi.yml
  - type: Documentation
    url: https://conxai.readme.io/reference/sitelens-integration-steps
  - type: APIReference
    url: https://conxai.readme.io/reference/post_project
  - type: APIReference
    url: https://conxai.readme.io/reference/post_projects
  - type: APIReference
    url: https://conxai.readme.io/reference/post_images
  - type: APIReference
    url: https://conxai.readme.io/reference/get_weather-1
- aid: conxai:conxai-workflow-api
  name: Conxai workflow API
  description: The workflow API from Conxai — 3 operation(s) for workflow.
  humanURL: https://conxai.readme.io/reference/sitelens-integration-steps
  baseURL: https://customer.conxai.ai
  tags:
  - Workflows
  tags_raw:
  - workflow
  properties:
  - type: OpenAPI
    url: openapi/conxai-workflow-api-openapi.yml
  - type: Documentation
    url: https://conxai.readme.io/reference/sitelens-integration-steps
  - type: APIReference
    url: https://conxai.readme.io/reference/post_project
  - type: APIReference
    url: https://conxai.readme.io/reference/post_projects
  - type: APIReference
    url: https://conxai.readme.io/reference/post_images
  - type: APIReference
    url: https://conxai.readme.io/reference/get_weather-1
- aid: conxai:conxai-workflow-table-api
  name: Conxai workflow-table API
  description: The workflow-table API from Conxai — 3 operation(s) for workflow-table.
  humanURL: https://conxai.readme.io/reference/sitelens-integration-steps
  baseURL: https://customer.conxai.ai
  tags:
  - workflow-table
  properties:
  - type: OpenAPI
    url: openapi/conxai-workflow-table-api-openapi.yml
  - type: Documentation
    url: https://conxai.readme.io/reference/sitelens-integration-steps
  - type: APIReference
    url: https://conxai.readme.io/reference/post_project
  - type: APIReference
    url: https://conxai.readme.io/reference/post_projects
  - type: APIReference
    url: https://conxai.readme.io/reference/post_images
  - type: APIReference
    url: https://conxai.readme.io/reference/get_weather-1
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Overlay
  url: overlays/conxai-customer-overlay.yaml
- type: AgenticAccess
  url: agentic-access/conxai-agentic-access.yml
- type: DomainSecurity
  url: security/conxai-domain-security.yml
- type: Authentication
  url: authentication/conxai-authentication.yml
- type: DeveloperPortal
  url: https://conxai.readme.io/
- type: Documentation
  url: https://conxai.readme.io/reference/sitelens-integration-steps
- type: APIReference
  url: https://conxai.readme.io/reference
- type: GettingStarted
  url: https://conxai.readme.io/reference/sitelens-integration-steps
- type: Website
  url: https://www.conxai.com/
- type: Blog
  url: https://www.conxai.com/company/news
- type: Support
  url: https://www.conxai.com/company/contact-us
- type: SignUp
  url: https://lens.conxai.ai/
- type: Login
  url: https://lens.conxai.ai/
- type: TermsOfService
  url: https://www.conxai.com/terms-of-service
- type: PrivacyPolicy
  url: https://www.conxai.com/privacy-policy
- type: TrustCenter
  url: https://conxai.eu.trust.site/
- type: Compliance
  url: https://conxai.eu.trust.site/
- type: LLMsTxt
  url: llms/conxai-llms.txt
- type: Conventions
  url: conventions/conxai-conventions.yml
- type: ErrorCatalog
  url: errors/conxai-problem-types.yml
- type: Lifecycle
  url: lifecycle/conxai-lifecycle.yml
- type: DataModel
  url: data-model/conxai-data-model.yml
- type: X-MCPServerCandidate
  url: mcp/conxai-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: Conformance
  url: conformance/conxai-conformance.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/conxai
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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

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