Cape Partners

Cape Partners is an independent M&A advisory firm focused on technology, based in Le Chesnay, France (Cape Partners SAS, SIREN 833 208 960). It operates a deal-flow platform ("Sniffer") that sources and enriches European software companies, matches sellers to strategic and financial buyers with a deterministic-times-semantic fit score, produces preliminary valuations, and lets both sides manage pairings and deal phases in a session-scoped workspace. The platform is agent-first: an OpenAPI 3.1 contract at /openapi.json, a JSON capability index at /api, llms.txt, an AI-plugin discovery manifest, and an A2A 1.0 Agent Card whose SendMessage / GetTask / ListTasks operations are served live at /a2a. External agents take part through an "agent exchange" — publish a six-field manifest with no account or key, then poll for a grounded answer; a workspace UUID is issued only after a human-reviewed handshake, and the Terms of Service are signed by a human principal.

Cape Partners publishes 16 API contracts indexed on the APIs.io network, including Activity API, Confidentiality API, Data Quality API, and 13 more. Tagged areas include Mergers and Acquisitions, Deal Flow, Valuation, Investment, and Financial Services.

Cape Partners’ developer surface includes documentation, API reference, signup flow, authentication, and 15 more developer resources.

37.9/100 thin ▬ flat Agent 30/100 agent ready Front door AI 4/6 moderate Full breakdown ↓
scored 2026-10-09 · rubric v0.23.0
4 published contracts
Mergers and AcquisitionsDeal FlowValuationInvestmentFinancial ServicesAgentsA2AFranceTechnologySoftware-as-a-Service

What this lets a business do 2

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Strategic Management
BC-100
DealFlowInfoMemosPairings
GET /api/deal-flow/{session_id} POST /api/watchlist GET /api/infomemo/{session_id} GET /api/light-infomemo/{session_id}/{pair_id}
Information & Data Management
BC-610
DataQuality
POST /api/dq/enqueue

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-10-09 · rubric v0.23.0
Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) 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 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.
The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
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/capepartners-fr: 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 16

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

Cape Partners Agent Exchange (A2A)

The A2A 1.0 surface of the Cape Partners agent exchange: SendMessage, GetTask and ListTasks on both the JSON-RPC binding (POST /a2a) and the HTTP+JSON binding (POST /a2a/message...

Cape Partners Activity API

The Activity API from Cape Partners — 1 operation(s) for activity.

Cape Partners Confidentiality API

The Confidentiality API from Cape Partners — 3 operation(s) for confidentiality.

Cape Partners Data Quality API

The DataQuality API from Cape Partners — 1 operation(s) for dataquality.

Cape Partners Deal Flow API

The DealFlow API from Cape Partners — 2 operation(s) for dealflow.

Cape Partners Discovery API

The Discovery API from Cape Partners — 7 operation(s) for discovery.

Cape Partners Exchange API

The Exchange API from Cape Partners — 11 operation(s) for exchange.

Cape Partners Identity API

The Identity API from Cape Partners — 3 operation(s) for identity.

Cape Partners Info Memos API

The InfoMemos API from Cape Partners — 4 operation(s) for infomemos.

Cape Partners Interest API

The Interest API from Cape Partners — 2 operation(s) for interest.

Cape Partners Mandate API

The Mandate API from Cape Partners — 3 operation(s) for mandate.

Cape Partners Matching API

The Matching API from Cape Partners — 3 operation(s) for matching.

Cape Partners Pairings API

The Pairings API from Cape Partners — 4 operation(s) for pairings.

Cape Partners Registration API

The Registration API from Cape Partners — 1 operation(s) for registration.

Cape Partners Search API

The Search API from Cape Partners — 1 operation(s) for search.

Cape Partners Valuation API

The Valuation API from Cape Partners — 1 operation(s) for valuation.

Scroll for all 16

Pricing Plans 1

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

Capepartners Fr Rate Limits

5 limits

RATE LIMITS

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Capepartners Fr Openapi Overlay

49 actions · documentation · capepartners-fr-openapi.yml

UNRECORDED

Security Posture 2

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

Capepartners Fr Authentication

apiKey · 6 schemes

SECURITY

Capepartners Fr Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Access & Security 2

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 2

The organization behind the API

Other 3

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: capepartners-fr
name: Cape Partners
description: 'Cape Partners is an independent M&A advisory firm focused on technology, based in Le Chesnay, France (Cape Partners
  SAS, SIREN 833 208 960). It operates a deal-flow platform ("Sniffer") that sources and enriches European software companies,
  matches sellers to strategic and financial buyers with a deterministic-times-semantic fit score, produces preliminary valuations,
  and lets both sides manage pairings and deal phases in a session-scoped workspace. The platform is agent-first: an OpenAPI
  3.1 contract at /openapi.json, a JSON capability index at /api, llms.txt, an AI-plugin discovery manifest, and an A2A 1.0
  Agent Card whose SendMessage / GetTask / ListTasks operations are served live at /a2a. External agents take part through
  an "agent exchange" — publish a six-field manifest with no account or key, then poll for a grounded answer; a workspace
  UUID is issued only after a human-reviewed handshake, and the Terms of Service are signed by a human principal.'
url: https://raw.githubusercontent.com/api-evangelist/capepartners-fr/refs/heads/main/apis.yml
x-type: company
x-source: harvest:a2a-registry
x-tier: enriched
x-tier-reason: full local enrichment pass 2026-09-19 (was a harvest stub from the a2a-registry)
specificationVersion: '0.20'
created: '2026-09-19'
modified: '2026-09-19'
tags:
- Mergers and Acquisitions
- Deal Flow
- Valuation
- Investment
- Financial Services
- Agents
- A2A
- France
- Technology
- Software-as-a-Service
tags_raw:
- Mergers and Acquisitions
- Deal Flow
- Valuation
- Investment
- Financial Services
- Agents
- A2A
- France
- Technology
- SaaS
- Financial-Services
apis:
- name: Cape Partners Agent Exchange (A2A)
  description: 'The A2A 1.0 surface of the Cape Partners agent exchange: SendMessage, GetTask and ListTasks on both the JSON-RPC
    binding (POST /a2a) and the HTTP+JSON binding (POST /a2a/message:send, GET /a2a/tasks, GET /a2a/tasks/{id}). An agent
    publishes a six-field manifest (identity, wants, offers, interface, delivery_contract, boundary) or any message and receives
    a Task whose artifact is the receipt or a grounded reply; the msgid issued with the first message is the capability key
    (X-A2A-Key or Bearer) for reading tasks back. Streaming, push notifications, cancellation and the extended card are declared
    unsupported. REST twins exist at POST /api/exchange/manifest, GET /api/exchange/answer/{msgid} and POST /api/exchange/reply.'
  humanURL: https://www.capepartners.fr/agent-exchange.html
  baseURL: https://www.capepartners.fr/a2a
  tags:
  - A2A
  - Agents
  - Agent Exchange
  - Mergers and Acquisitions
  properties:
  - type: AgentCard
    url: a2a/capepartners-fr-a2a.yml
  - type: Documentation
    url: https://www.capepartners.fr/agent-exchange.html
  - type: APIReference
    url: https://www.capepartners.fr/api/exchange/spec
- aid: capepartners-fr:capepartners-fr-activity-api
  name: Cape Partners Activity API
  description: The Activity API from Cape Partners — 1 operation(s) for activity.
  humanURL: https://www.capepartners.fr/
  baseURL: https://sniffer.capepartners.fr
  tags:
  - Activity
  properties:
  - type: OpenAPI
    url: openapi/capepartners-fr-activity-api-openapi.yml
  - type: APIReference
    url: https://www.capepartners.fr/api
  - type: Documentation
    url: https://www.capepartners.fr/llms.txt
  - type: ErrorCatalog
    url: errors/capepartners-fr-problem-types.yml
  - type: DataModel
    url: data-model/capepartners-fr-data-model.yml
- aid: capepartners-fr:capepartners-fr-confidentiality-api
  name: Cape Partners Confidentiality API
  description: The Confidentiality API from Cape Partners — 3 operation(s) for confidentiality.
  humanURL: https://www.capepartners.fr/
  baseURL: https://sniffer.capepartners.fr
  tags:
  - Confidentiality
  properties:
  - type: OpenAPI
    url: openapi/capepartners-fr-confidentiality-api-openapi.yml
  - type: APIReference
    url: https://www.capepartners.fr/api
  - type: Documentation
    url: https://www.capepartners.fr/llms.txt
  - type: ErrorCatalog
    url: errors/capepartners-fr-problem-types.yml
  - type: DataModel
    url: data-model/capepartners-fr-data-model.yml
- aid: capepartners-fr:capepartners-fr-dataquality-api
  name: Cape Partners Data Quality API
  description: The DataQuality API from Cape Partners — 1 operation(s) for dataquality.
  humanURL: https://www.capepartners.fr/
  baseURL: https://sniffer.capepartners.fr
  tags:
  - Data Quality
  tags_raw:
  - DataQuality
  properties:
  - type: OpenAPI
    url: openapi/capepartners-fr-dataquality-api-openapi.yml
  - type: APIReference
    url: https://www.capepartners.fr/api
  - type: Documentation
    url: https://www.capepartners.fr/llms.txt
  - type: ErrorCatalog
    url: errors/capepartners-fr-problem-types.yml
  - type: DataModel
    url: data-model/capepartners-fr-data-model.yml
- aid: capepartners-fr:capepartners-fr-dealflow-api
  name: Cape Partners Deal Flow API
  description: The DealFlow API from Cape Partners — 2 operation(s) for dealflow.
  humanURL: https://www.capepartners.fr/
  baseURL: https://sniffer.capepartners.fr
  tags:
  - Deal Flow
  tags_raw:
  - DealFlow
  properties:
  - type: OpenAPI
    url: openapi/capepartners-fr-dealflow-api-openapi.yml
  - type: APIReference
    url: https://www.capepartners.fr/api
  - type: Documentation
    url: https://www.capepartners.fr/llms.txt
  - type: ErrorCatalog
    url: errors/capepartners-fr-problem-types.yml
  - type: DataModel
    url: data-model/capepartners-fr-data-model.yml
- aid: capepartners-fr:capepartners-fr-discovery-api
  name: Cape Partners Discovery API
  description: The Discovery API from Cape Partners — 7 operation(s) for discovery.
  humanURL: https://www.capepartners.fr/
  baseURL: https://sniffer.capepartners.fr
  tags:
  - Discovery
  properties:
  - type: OpenAPI
    url: openapi/capepartners-fr-discovery-api-openapi.yml
  - type: APIReference
    url: https://www.capepartners.fr/api
  - type: Documentation
    url: https://www.capepartners.fr/llms.txt
  - type: ErrorCatalog
    url: errors/capepartners-fr-problem-types.yml
  - type: DataModel
    url: data-model/capepartners-fr-data-model.yml
- aid: capepartners-fr:capepartners-fr-exchange-api
  name: Cape Partners Exchange API
  description: The Exchange API from Cape Partners — 11 operation(s) for exchange.
  humanURL: https://www.capepartners.fr/
  baseURL: https://sniffer.capepartners.fr
  tags:
  - Exchange
  properties:
  - type: OpenAPI
    url: openapi/capepartners-fr-exchange-api-openapi.yml
  - type: APIReference
    url: https://www.capepartners.fr/api
  - type: Documentation
    url: https://www.capepartners.fr/llms.txt
  - type: ErrorCatalog
    url: errors/capepartners-fr-problem-types.yml
  - type: DataModel
    url: data-model/capepartners-fr-data-model.yml
- aid: capepartners-fr:capepartners-fr-identity-api
  name: Cape Partners Identity API
  description: The Identity API from Cape Partners — 3 operation(s) for identity.
  humanURL: https://www.capepartners.fr/
  baseURL: https://sniffer.capepartners.fr
  tags:
  - Identity
  properties:
  - type: OpenAPI
    url: openapi/capepartners-fr-identity-api-openapi.yml
  - type: APIReference
    url: https://www.capepartners.fr/api
  - type: Documentation
    url: https://www.capepartners.fr/llms.txt
  - type: ErrorCatalog
    url: errors/capepartners-fr-problem-types.yml
  - type: DataModel
    url: data-model/capepartners-fr-data-model.yml
- aid: capepartners-fr:capepartners-fr-infomemos-api
  name: Cape Partners Info Memos API
  description: The InfoMemos API from Cape Partners — 4 operation(s) for infomemos.
  humanURL: https://www.capepartners.fr/
  baseURL: https://sniffer.capepartners.fr
  tags:
  - InfoMemos
  properties:
  - type: OpenAPI
    url: openapi/capepartners-fr-infomemos-api-openapi.yml
  - type: APIReference
    url: https://www.capepartners.fr/api
  - type: Documentation
    url: https://www.capepartners.fr/llms.txt
  - type: ErrorCatalog
    url: errors/capepartners-fr-problem-types.yml
  - type: DataModel
    url: data-model/capepartners-fr-data-model.yml
- aid: capepartners-fr:capepartners-fr-interest-api
  name: Cape Partners Interest API
  description: The Interest API from Cape Partners — 2 operation(s) for interest.
  humanURL: https://www.capepartners.fr/
  baseURL: https://sniffer.capepartners.fr
  tags:
  - Interest
  properties:
  - type: OpenAPI
    url: openapi/capepartners-fr-interest-api-openapi.yml
  - type: APIReference
    url: https://www.capepartners.fr/api
  - type: Documentation
    url: https://www.capepartners.fr/llms.txt
  - type: ErrorCatalog
    url: errors/capepartners-fr-problem-types.yml
  - type: DataModel
    url: data-model/capepartners-fr-data-model.yml
- aid: capepartners-fr:capepartners-fr-mandate-api
  name: Cape Partners Mandate API
  description: The Mandate API from Cape Partners — 3 operation(s) for mandate.
  humanURL: https://www.capepartners.fr/
  baseURL: https://sniffer.capepartners.fr
  tags:
  - Mandate
  properties:
  - type: OpenAPI
    url: openapi/capepartners-fr-mandate-api-openapi.yml
  - type: APIReference
    url: https://www.capepartners.fr/api
  - type: Documentation
    url: https://www.capepartners.fr/llms.txt
  - type: ErrorCatalog
    url: errors/capepartners-fr-problem-types.yml
  - type: DataModel
    url: data-model/capepartners-fr-data-model.yml
- aid: capepartners-fr:capepartners-fr-matching-api
  name: Cape Partners Matching API
  description: The Matching API from Cape Partners — 3 operation(s) for matching.
  humanURL: https://www.capepartners.fr/
  baseURL: https://sniffer.capepartners.fr
  tags:
  - Matching
  properties:
  - type: OpenAPI
    url: openapi/capepartners-fr-matching-api-openapi.yml
  - type: APIReference
    url: https://www.capepartners.fr/api
  - type: Documentation
    url: https://www.capepartners.fr/llms.txt
  - type: ErrorCatalog
    url: errors/capepartners-fr-problem-types.yml
  - type: DataModel
    url: data-model/capepartners-fr-data-model.yml
- aid: capepartners-fr:capepartners-fr-pairings-api
  name: Cape Partners Pairings API
  description: The Pairings API from Cape Partners — 4 operation(s) for pairings.
  humanURL: https://www.capepartners.fr/
  baseURL: https://sniffer.capepartners.fr
  tags:
  - Pairings
  properties:
  - type: OpenAPI
    url: openapi/capepartners-fr-pairings-api-openapi.yml
  - type: APIReference
    url: https://www.capepartners.fr/api
  - type: Documentation
    url: https://www.capepartners.fr/llms.txt
  - type: ErrorCatalog
    url: errors/capepartners-fr-problem-types.yml
  - type: DataModel
    url: data-model/capepartners-fr-data-model.yml
- aid: capepartners-fr:capepartners-fr-registration-api
  name: Cape Partners Registration API
  description: The Registration API from Cape Partners — 1 operation(s) for registration.
  humanURL: https://www.capepartners.fr/
  baseURL: https://sniffer.capepartners.fr
  tags:
  - Registration
  properties:
  - type: OpenAPI
    url: openapi/capepartners-fr-registration-api-openapi.yml
  - type: APIReference
    url: https://www.capepartners.fr/api
  - type: Documentation
    url: https://www.capepartners.fr/llms.txt
  - type: ErrorCatalog
    url: errors/capepartners-fr-problem-types.yml
  - type: DataModel
    url: data-model/capepartners-fr-data-model.yml
- aid: capepartners-fr:capepartners-fr-search-api
  name: Cape Partners Search API
  description: The Search API from Cape Partners — 1 operation(s) for search.
  humanURL: https://www.capepartners.fr/
  baseURL: https://sniffer.capepartners.fr
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/capepartners-fr-search-api-openapi.yml
  - type: APIReference
    url: https://www.capepartners.fr/api
  - type: Documentation
    url: https://www.capepartners.fr/llms.txt
  - type: ErrorCatalog
    url: errors/capepartners-fr-problem-types.yml
  - type: DataModel
    url: data-model/capepartners-fr-data-model.yml
- aid: capepartners-fr:capepartners-fr-valuation-api
  name: Cape Partners Valuation API
  description: The Valuation API from Cape Partners — 1 operation(s) for valuation.
  humanURL: https://www.capepartners.fr/
  baseURL: https://sniffer.capepartners.fr
  tags:
  - Valuation
  properties:
  - type: OpenAPI
    url: openapi/capepartners-fr-valuation-api-openapi.yml
  - type: APIReference
    url: https://www.capepartners.fr/api
  - type: Documentation
    url: https://www.capepartners.fr/llms.txt
  - type: ErrorCatalog
    url: errors/capepartners-fr-problem-types.yml
  - type: DataModel
    url: data-model/capepartners-fr-data-model.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: CapabilityMap
  url: capabilities/capepartners-fr-capability-edges.yml
  name: Cape Partners Business Capability Map
- type: Overlay
  url: overlays/capepartners-fr-openapi-overlay.yaml
- type: Website
  url: https://www.capepartners.fr/
- type: Documentation
  url: https://www.capepartners.fr/llms.txt
- type: APIReference
  url: https://www.capepartners.fr/api
- type: TermsOfService
  url: https://www.capepartners.fr/tos
- type: SignUp
  url: https://www.capepartners.fr/new-workspace.html
- type: LinkedIn
  url: https://www.linkedin.com/company/capepartners/
- type: LLMsTxt
  url: llms/capepartners-fr-llms.txt
- type: WellKnown
  url: well-known/capepartners-fr-well-known.yml
- type: AgentCard
  url: a2a/capepartners-fr-a2a.yml
- type: DomainSecurity
  url: security/capepartners-fr-domain-security.yml
- type: Authentication
  url: authentication/capepartners-fr-authentication.yml
- type: Conventions
  url: conventions/capepartners-fr-conventions.yml
- type: Conformance
  url: conformance/capepartners-fr-conformance.yml
- type: Lifecycle
  url: lifecycle/capepartners-fr-lifecycle.yml
- type: Plans
  url: plans/capepartners-fr-plans-pricing.yml
- type: RateLimits
  url: rate-limits/capepartners-fr-rate-limits.yml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-09-19'
  status: enriched
  artifacts_added: 23
  pass: local-v3
x-a2a:
  verified: true
  probed: '2026-09-26'
  url: https://www.capepartners.fr/.well-known/agent-card.json
  grade: flavored
  protocol_version: '1.0'
  control: 404
x-correction-request:
  requested: '2026-10-02'
  source:
  - https://github.com/api-evangelist/capepartners-fr/issues/1
  request: 'Issue #1 (raphaeltinot-sketch, Cape Partners), verified 2026-10-02. The A2A grade ''Flavored / no-protocolVersion''
    is OUR grader defect, not a card deviation: https://www.capepartners.fr/.well-known/agent-card.json is a valid A2A 1.0
    card - no top-level protocolVersion or url (correct for 1.0), supportedInterfaces[] with two entries (https://www.capepartners.fr/a2a,
    protocolBinding JSONRPC and HTTP+JSON, protocolVersion ''1.0'' each), name, description, version 1.0.0, provider, documentationUrl,
    capabilities object (streaming/pushNotifications/extendedAgentCard false), defaultInputModes, defaultOutputModes, securitySchemes,
    and 2 skills each with id/name/description/tags. The /a2a JSON-RPC endpoint answers GetTask with a proper A2A TASK_NOT_FOUND
    error. The fixed grader (gradeAgentCard reads supportedInterfaces[].protocolVersion, roadmap#611; network lib_agent_card.py
    9ab6c0cb4) deploys after the 2026-10-02 Friday build (this weekend) (PENDING-DEPLOY item 116). Re-profile AFTER that deploy
    so the card is re-graded with the 1.0 reader; do NOT ask the provider to add a top-level protocolVersion and do not record
    no-protocolVersion as a deviation.'

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