The Direct Index

The Direct Index provides an independent, open‑source platform that scans any business website to determine whether AI agents can discover, read, and act on its content. It offers a free scanner, city indexes, and open data APIs that expose measurement results and raw site data for developers and researchers.

The Direct Index publishes 23 API contracts indexed on the APIs.io network, including Ask API, Assistants.json API, Badge API, and 20 more. Tagged areas include Artificial Intelligence, Open Data, WebScanning, and Indexing.

The Direct Index’s developer surface includes API reference and 12 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

25.8/100 emerging Agent 34/100 agent ready Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

2 published contracts 1 MCP Servers

Artificial Intelligence Open DataWebScanningIndexing

Kin Score

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

Composite quality — 25.8/100 · emerging

Contract Quality 9.9 / 21

Developer Ergonomics 1.2 / 17

Access Clarity 3.6 / 17

Operational Transparency 0.0 / 11

Contract Governance 1.9 / 10

Discoverability 4.8 / 9

Regulatory Posture 2.6 / 15

Agent readiness — 34/100 · agent ready

Machine-Readable Contract 18 / 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 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 4 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 8 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 5 / 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 Government & Public Sector 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
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)
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

5 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 7.1 — up to +18.6 composite points
Access Clarity scores 21.1 — up to +15.8 composite points
Contract Quality scores 46.8 — up to +13.3 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/directindex-org/apis.yml: open an issue on github.com/api-evangelist/directindex-org 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 4

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.

Agent2Agent

measured — observed by APIs.io (conformant)

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (documented)

OpenAPI

measured — observed by APIs.io (published)

APIs 23

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

The Direct Index Ask API

The Ask API from The Direct Index — 1 operation(s) for ask.

The Direct Index Assistants.json API

The Assistants.json API from The Direct Index — 1 operation(s) for assistants.json.

The Direct Index Badge API

The Badge API from The Direct Index — 1 operation(s) for badge.

The Direct Index Brand API

The Brand API from The Direct Index — 1 operation(s) for brand.

The Direct Index Brands API

The Brands API from The Direct Index — 1 operation(s) for brands.

The Direct Index City API

The City API from The Direct Index — 8 operation(s) for city.

The Direct Index Compare API

The Compare API from The Direct Index — 1 operation(s) for compare.

The Direct Index Countries API

The Countries API from The Direct Index — 1 operation(s) for countries.

The Direct Index Country API

The Country API from The Direct Index — 1 operation(s) for country.

The Direct Index Data API

The Data API from The Direct Index — 1 operation(s) for data.

The Direct Index Deep API

The Deep API from The Direct Index — 2 operation(s) for deep.

The Direct Index Direct API

The Direct API from The Direct Index — 1 operation(s) for direct.

The Direct Index Direct.json API

The Direct.json API from The Direct Index — 1 operation(s) for direct.json.

The Direct Index Editions API

The Editions API from The Direct Index — 1 operation(s) for editions.

The Direct Index Go API

The Go API from The Direct Index — 1 operation(s) for go.

The Direct Index MCP API

The Mcp API from The Direct Index — 1 operation(s) for mcp.

The Direct Index Plan API

The Plan API from The Direct Index — 1 operation(s) for plan.

The Direct Index R API

The R API from The Direct Index — 1 operation(s) for r.

The Direct Index Rankings API

The Rankings API from The Direct Index — 1 operation(s) for rankings.

The Direct Index Scan API

The Scan API from The Direct Index — 2 operation(s) for scan.

The Direct Index Search API

The Search API from The Direct Index — 1 operation(s) for search.

The Direct Index Site API

The Site API from The Direct Index — 1 operation(s) for site.

The Direct Index Vendors API

The Vendors API from The Direct Index — 2 operation(s) for vendors.

Scroll for all 23

MCP Servers 1

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

The Direct Index MCP Server

Remote MCP server at directindex.org.

MCP SERVER

Security Posture 1

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

Directindex Org Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

MCPServer

MCPServer

WellKnown

WellKnown

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

ErrorCatalog

ErrorCatalog

Conformance

Conformance

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 3

Properties that don't map to a standard resource type

AgentCard

AgentCard

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: directindex-org
name: The Direct Index
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-06'
  method: derived
image: https://directindex.org/og/site.png
description: The Direct Index provides an independent, open‑source platform that scans any business website to determine whether
  AI agents can discover, read, and act on its content. It offers a free scanner, city indexes, and open data APIs that expose
  measurement results and raw site data for developers and researchers.
url: https://artifacts.apis.io/directindex-org/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-05 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-05'
modified: '2026-11-05'
tags:
- Artificial Intelligence
- Open Data
- WebScanning
- Indexing
tags_raw:
- AI
- OpenData
- FreeTool
- WebScanning
- Indexing
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: ErrorCatalog
  url: errors/directindex-org-problem-types.yml
- type: Conformance
  url: conformance/directindex-org-conformance.yml
- type: LLMsTxt
  url: llms/directindex-org-llms.txt
- type: AgentCard
  url: a2a/directindex-org-a2a.yml
- type: MCPServer
  url: mcp/directindex-org-mcp.yml
- type: WellKnown
  url: well-known/directindex-org-well-known.yml
- type: Hosts
  url: hosts/directindex-org-hosts.yml
- type: Vendors
  url: vendors/directindex-org-vendors.yml
- type: TermsOfService
  url: https://directindex.org/terms
- type: PrivacyPolicy
  url: https://directindex.org/privacy
- type: APIReference
  url: https://directindex.org/guides
- type: DomainSecurity
  url: security/directindex-org-domain-security.yml
- type: Website
  url: https://directindex.org/
apis:
- aid: directindex-org:directindex-org-ask-api
  name: The Direct Index Ask API
  description: The Ask API from The Direct Index — 1 operation(s) for ask.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - Ask
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-ask-api-openapi.yml
- aid: directindex-org:directindex-org-assistants-json-api
  name: The Direct Index Assistants.json API
  description: The Assistants.json API from The Direct Index — 1 operation(s) for assistants.json.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - Assistants.json
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-assistants-json-api-openapi.yml
- aid: directindex-org:directindex-org-badge-api
  name: The Direct Index Badge API
  description: The Badge API from The Direct Index — 1 operation(s) for badge.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - Badge
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-badge-api-openapi.yml
- aid: directindex-org:directindex-org-brand-api
  name: The Direct Index Brand API
  description: The Brand API from The Direct Index — 1 operation(s) for brand.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - Brands
  tags_raw:
  - Brand
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-brand-api-openapi.yml
- aid: directindex-org:directindex-org-brands-api
  name: The Direct Index Brands API
  description: The Brands API from The Direct Index — 1 operation(s) for brands.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - Brands
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-brands-api-openapi.yml
- aid: directindex-org:directindex-org-city-api
  name: The Direct Index City API
  description: The City API from The Direct Index — 8 operation(s) for city.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - City
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-city-api-openapi.yml
- aid: directindex-org:directindex-org-compare-api
  name: The Direct Index Compare API
  description: The Compare API from The Direct Index — 1 operation(s) for compare.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - Compare
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-compare-api-openapi.yml
- aid: directindex-org:directindex-org-countries-api
  name: The Direct Index Countries API
  description: The Countries API from The Direct Index — 1 operation(s) for countries.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - Countries
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-countries-api-openapi.yml
- aid: directindex-org:directindex-org-country-api
  name: The Direct Index Country API
  description: The Country API from The Direct Index — 1 operation(s) for country.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - Country
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-country-api-openapi.yml
- aid: directindex-org:directindex-org-data-api
  name: The Direct Index Data API
  description: The Data API from The Direct Index — 1 operation(s) for data.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - Data
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-data-api-openapi.yml
- aid: directindex-org:directindex-org-deep-api
  name: The Direct Index Deep API
  description: The Deep API from The Direct Index — 2 operation(s) for deep.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - Deep
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-deep-api-openapi.yml
- aid: directindex-org:directindex-org-direct-api
  name: The Direct Index Direct API
  description: The Direct API from The Direct Index — 1 operation(s) for direct.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - Direct
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-direct-api-openapi.yml
- aid: directindex-org:directindex-org-direct-json-api
  name: The Direct Index Direct.json API
  description: The Direct.json API from The Direct Index — 1 operation(s) for direct.json.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - Direct.json
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-direct-json-api-openapi.yml
- aid: directindex-org:directindex-org-editions-api
  name: The Direct Index Editions API
  description: The Editions API from The Direct Index — 1 operation(s) for editions.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - Editions
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-editions-api-openapi.yml
- aid: directindex-org:directindex-org-go-api
  name: The Direct Index Go API
  description: The Go API from The Direct Index — 1 operation(s) for go.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - Go
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-go-api-openapi.yml
- aid: directindex-org:directindex-org-mcp-api
  name: The Direct Index MCP API
  description: The Mcp API from The Direct Index — 1 operation(s) for mcp.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - MCP
  tags_raw:
  - Mcp
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-mcp-api-openapi.yml
- aid: directindex-org:directindex-org-plan-api
  name: The Direct Index Plan API
  description: The Plan API from The Direct Index — 1 operation(s) for plan.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - Plan
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-plan-api-openapi.yml
- aid: directindex-org:directindex-org-r-api
  name: The Direct Index R API
  description: The R API from The Direct Index — 1 operation(s) for r.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - R
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-r-api-openapi.yml
- aid: directindex-org:directindex-org-rankings-api
  name: The Direct Index Rankings API
  description: The Rankings API from The Direct Index — 1 operation(s) for rankings.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - Rankings
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-rankings-api-openapi.yml
- aid: directindex-org:directindex-org-scan-api
  name: The Direct Index Scan API
  description: The Scan API from The Direct Index — 2 operation(s) for scan.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - Scans
  tags_raw:
  - Scan
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-scan-api-openapi.yml
- aid: directindex-org:directindex-org-search-api
  name: The Direct Index Search API
  description: The Search API from The Direct Index — 1 operation(s) for search.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-search-api-openapi.yml
- aid: directindex-org:directindex-org-site-api
  name: The Direct Index Site API
  description: The Site API from The Direct Index — 1 operation(s) for site.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - Site
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-site-api-openapi.yml
- aid: directindex-org:directindex-org-vendors-api
  name: The Direct Index Vendors API
  description: The Vendors API from The Direct Index — 2 operation(s) for vendors.
  humanURL: https://directindex.org/guides
  baseURL: https://directindex.org
  tags:
  - Vendors
  properties:
  - type: OpenAPI
    url: openapi/directindex-org-vendors-api-openapi.yml
x-enrichment:
  date: '2026-11-05'
  status: enriched
  artifacts_added: 21
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

The Direct Index API — frequently asked questions

Does The Direct Index have an API?

Yes. APIs.io lists 23 APIs from The Direct Index, including The Direct Index Ask API, The Direct Index Assistants.json API and The Direct Index Badge API, and 20 more.

Is there an OpenAPI specification for the The Direct Index API?

Yes. APIs.io indexes 23 OpenAPI specifications for The Direct Index, each linked for download from this page.

How do I authenticate with the The Direct Index API?

The Direct Index uses bearer-token authentication.

Does The Direct Index have an MCP server?

Yes. APIs.io lists 1 MCP server for The Direct Index: Remote MCP server at directindex.org.

Is the The Direct Index API ready for AI agents?

The Direct Index has a Kin Score of 25.8 out of 100 (emerging) and an Agent Readiness score of 34.0 (agent-ready), scored by API Evangelist on 2026-11-06.

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