Handover Tools

Handover Tools provides a simple, secure, end‑to‑end encrypted handoff service that lets one agent write a piece of context and another agent read it via a short link. The platform supports multi‑round encrypted communication, channel creation, and a suite of tools for handoff, channel management, and secure data exchange, all without requiring a persistent backend.

Handover Tools is listed with 1 API on the APIs.io network. Tagged areas include Encryption, Communications, Tools, and Security.

The Handover Tools catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Handover Tools’ developer surface includes CLI, changelog, documentation, API reference, getting-started guide, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

29.4/100 thin Agent 18/100 agent aware Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

1 API

Encryption Communications Tools Security

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 29.4/100 · thin

Contract Quality 5.0 / 21

Developer Ergonomics 6.1 / 17

Access Clarity 2.9 / 17

Operational Transparency 2.6 / 11

Contract Governance 2.2 / 10

Discoverability 5.0 / 9

Regulatory Posture 3.7 / 15

Agent readiness — 18/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 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 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 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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Agent readiness — checks not met, largest first (exact, from this profile):

Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey) Ask about this →
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) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →

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 23.5 — up to +19.1 composite points Ask about this →
Access Clarity scores 17.0 — up to +16.6 composite points Ask about this →
Developer Ergonomics scores 35.7 — up to +12.9 composite points Ask about this →

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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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/handover-tools/apis.yml: open an issue on github.com/api-evangelist/handover-tools 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 →

Standards implemented 1

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 (documented)

APIs 1

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

Handover Tools API

Handover Tools API as documented publicly: 9 operations. Contract generated from the documentation by API Evangelist (2026-11-11); not the provider's own document.

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Handover Tools Context

9 classes · 13 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Handover Tools API Rules

31 rules · 29 error-severity 1 warn-severity 1 info-severity

SPECTRAL

JSON Schema 6

Standalone JSON Schema definitions for this provider's data models.

PostApiChannelAckRequest

2 properties

JSON SCHEMA

PostApiChannelFetchRequest

3 properties

JSON SCHEMA

PostApiChannelJoinRequest

2 properties

JSON SCHEMA

PostApiChannelSendRequest

2 properties

JSON SCHEMA

PostApiHandoffPutRequest

4 properties

JSON SCHEMA

PostApiHandoffRevokeRequest

1 properties

JSON SCHEMA

Security Posture 2

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

Handover Tools Domain Security

TLSv1.3 · DMARC

SECURITY

Handover Tools Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

CLI

CLI

Access & Security 4

Authentication, authorization, and security posture

SecurityTxt

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Security

Security

Operate 2

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

ChangeLog

ChangeLog

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: handover-tools
name: Handover Tools
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  probe_state: unreadable
  source:
  - security
  generated: '2026-11-13'
  method: derived
image: https://handover.tools/og.png
description: Handover Tools provides a simple, secure, end‑to‑end encrypted handoff service that lets one agent write a piece
  of context and another agent read it via a short link. The platform supports multi‑round encrypted communication, channel
  creation, and a suite of tools for handoff, channel management, and secure data exchange, all without requiring a persistent
  backend.
url: https://artifacts.apis.io/handover-tools/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-11 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-10'
modified: '2026-11-10'
tags:
- Encryption
- Communications
- Tools
- Security
tags_raw:
- Encryption
- Communication
- API
- Tools
- Security
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: No OpenAPI, AsyncAPI, GraphQL, gRPC, or WSDL contract could be found despite a JSON discover endpoint.
  evidence:
  - url: https://handover.tools/api/discover
    status: 200
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Spectral
  url: rules/handover-tools-rules.yml
- type: JSONLD
  url: json-ld/handover-tools-context.jsonld
- type: Vocabulary
  url: vocabulary/handover-tools-vocabulary.yml
- type: DataModel
  url: data-model/handover-tools-data-model.yml
- type: CLI
  url: cli/handover-tools-cli.yml
- type: ChangeLog
  url: changelog/handover-tools-changelog.yml
- type: Conformance
  url: conformance/handover-tools-conformance.yml
- type: LLMsTxt
  url: llms/handover-tools-llms.txt
- type: SecurityTxt
  url: well-known/handover-tools-security.txt
- type: WellKnown
  url: well-known/handover-tools-well-known.yml
- type: Hosts
  url: hosts/handover-tools-hosts.yml
- type: Vendors
  url: vendors/handover-tools-vendors.yml
- type: ChangeLog
  url: https://handover.tools/changelog
- type: VulnerabilityDisclosure
  url: security/handover-tools-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/handover-tools-domain-security.yml
- type: Website
  url: https://handover.tools/
- type: Documentation
  url: https://handover.tools/guide
- type: APIReference
  url: https://handover.tools/api/discover
- type: TermsOfService
  url: https://handover.tools/terms
- type: PrivacyPolicy
  url: https://handover.tools/privacy
- type: Security
  url: https://handover.tools/security
- type: GettingStarted
  url: https://handover.tools/guide
apis:
- aid: handover-tools:handover-tools-api
  name: Handover Tools API
  description: 'Handover Tools API as documented publicly: 9 operations. Contract generated from the documentation by API
    Evangelist (2026-11-11); not the provider''s own document.'
  humanURL: https://handover.tools/api/discover
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/handover-tools-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/handover-tools-post-api-handoff-put-request-schema.json
  - type: JSONSchema
    url: json-schema/handover-tools-post-api-channel-fetch-request-schema.json
  - type: JSONSchema
    url: json-schema/handover-tools-post-api-channel-join-request-schema.json
  - type: JSONSchema
    url: json-schema/handover-tools-post-api-channel-send-request-schema.json
  - type: JSONSchema
    url: json-schema/handover-tools-post-api-channel-ack-request-schema.json
  - type: JSONSchema
    url: json-schema/handover-tools-post-api-handoff-revoke-request-schema.json
x-enrichment:
  date: '2026-11-11'
  status: enriched
  artifacts_added: 27
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Handover Tools API — frequently asked questions

Does Handover Tools have an API?

Yes. APIs.io lists 1 API from Handover Tools, including Handover Tools API.

Is there an OpenAPI specification for the Handover Tools API?

Yes. APIs.io indexes 1 OpenAPI specification for Handover Tools, each linked for download from this page.

Is the Handover Tools API ready for AI agents?

Handover Tools has a Kin Score of 29.4 out of 100 (thin) and an Agent Readiness score of 17.8 (agent-aware), scored by API Evangelist on 2026-11-13.

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