Harbinger · Agentic Access

Harbinger Agentic Access

x-agentic-access generated

Harbinger exposes 22 API operations that an AI agent could call, of which 0 are state-changing ‘acting’ operations. This is a recommended x-agentic-access execution contract — the scope, audience, consequence tier, short-lived token constraints, and escalation each action should carry before it is handed to an autonomous agent.

By consequence: 22 read.

Contracts are classified heuristically from the provider’s OpenAPI and refresh on every APIs.io network build; audience is bound per deployment. The model follows Curity’s Access Intelligence (apidays Munich 2026). Browse every provider’s agent contracts at agentic-access.apis.io.

CompanyAutomotiveElectric VehiclesCommercial VehiclesMedium Duty TrucksManufacturingFleet ManagementTransportationLogisticsEnergy Storage
Operations: 22 Acting: 0 Human-in-the-loop: 0 Method: generated

By consequence

read 22

Source

Agentic Access

harbinger-agentic-access.yml Raw ↑ 
generated: '2026-08-22'
method: generated
source: openapi/harbinger-discovery-api-openapi.yml, openapi/harbinger-events-api-openapi.yml, openapi/harbinger-media-api-openapi.yml,
  openapi/harbinger-oembed-api-openapi.yml, openapi/harbinger-pages-api-openapi.yml, openapi/harbinger-posts-api-openapi.yml,
  openapi/harbinger-search-api-openapi.yml, openapi/harbinger-seo-api-openapi.yml, openapi/harbinger-taxonomy-api-openapi.yml
description: Recommended x-agentic-access execution contracts, classified from the derived OpenAPI. Every publicly
  reachable operation on this surface is an anonymous read with no side effect and nothing to reverse, so the
  classification is uniform — that uniformity is the finding, not a shortcut. A governance starting point for
  exposing this API to AI agents; review and bind audience per deployment.
summary:
  operations: 22
  by_action_class:
    connected: 22
  by_consequence:
    read: 22
  human_in_the_loop_required: 0
  write_operations: 0
  note: No public write operation exists. Anonymous POST/PUT/PATCH/DELETE returns 401 rest_cannot_create.
operations:
- path: /
  method: get
  operationId: getApiIndex
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
- path: /wp/v2
  method: get
  operationId: getNamespaceIndex
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
- path: /wp/v2/types
  method: get
  operationId: listTypes
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
- path: /wp/v2/types/{type}
  method: get
  operationId: getType
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
- path: /wp/v2/statuses
  method: get
  operationId: listStatuses
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
- path: /wp/v2/event
  method: get
  operationId: listEvents
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
- path: /wp/v2/event/{id}
  method: get
  operationId: getEvent
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
- path: /wp/v2/media
  method: get
  operationId: listMedia
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
- path: /wp/v2/media/{id}
  method: get
  operationId: getMedia
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
- path: /oembed/1.0/embed
  method: get
  operationId: getOembed
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
- path: /wp/v2/pages
  method: get
  operationId: listPages
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
- path: /wp/v2/pages/{id}
  method: get
  operationId: getPage
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
- path: /wp/v2/posts
  method: get
  operationId: listPosts
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
- path: /wp/v2/posts/{id}
  method: get
  operationId: getPost
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
- path: /wp/v2/search
  method: get
  operationId: search
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
- path: /yoast/v1/get_head
  method: get
  operationId: getSeoHead
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
- path: /wp/v2/categories
  method: get
  operationId: listCategories
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
- path: /wp/v2/categories/{id}
  method: get
  operationId: getCategory
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
- path: /wp/v2/tags
  method: get
  operationId: listTags
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
- path: /wp/v2/tags/{id}
  method: get
  operationId: getTag
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
- path: /wp/v2/taxonomies
  method: get
  operationId: listTaxonomies
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
- path: /wp/v2/taxonomies/{taxonomy}
  method: get
  operationId: getTaxonomy
  x-agentic-access:
    action-class: connected
    consequence: read
    subject: optional
    token:
      max-ttl: 3600
    audit: none
    reversible: na
guardrails:
  rate: No published limit and no runtime signal. Self-throttle to 1-2 concurrent requests. See rate-limits/harbinger-rate-limits.yml.
  freshness: No Cache-Control, ETag or Last-Modified is returned, so an agent cannot revalidate cheaply and cannot
    tell a stale read from a fresh one.
  pii: Author ids appear on records but /wp/v2/users is 401-gated, so no personal data is resolvable anonymously.
  tracking: Responses set a _fbp Meta advertising cookie. A machine client must discard cookies.
  indexing: 'Every response carries X-Robots-Tag: noindex. Treat the data as readable-but-not-republishable-as-content.'

Work with this as data

Every access contract here is available over the APIs.io API and to AI agents over MCP. Agentic Access is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for agentic access

3 MCP tools reach this
  • 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
Search the catalog 
curl "https://apis.io/api/v1/search?q=harbinger-agentic-access&limit=10"
Everything under a tag 
curl "https://apis.io/api/v1/tags/harbinger-agentic-access"

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.