ZeroRank

ZeroRank provides AI search visibility tracking, allowing brands to monitor how large language models like ChatGPT, Claude and Google cite them. The platform offers prompt research, AI visibility analytics, on‑page and off‑page optimization, and agentic workflows. Users can access data via a REST API (base https://api.zerorank.ai/api/v1) or MCP chat integration, with rate‑limit headers and JSON responses.

ZeroRank is listed with 2 APIs on the APIs.io network. Tagged areas include AI, SearchVisibility, Analytics, Platform, and Company.

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

ZeroRank’s developer surface includes authentication, signup flow, changelog, documentation, API reference, getting-started guide, engineering blog, and 23 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

45.4/100 developing Agent 47/100 agent ready Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

2 APIs 1 MCP Servers

AISearchVisibilityAnalytics Platform Company

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 45.4/100 · developing

Contract Quality 5.0 / 21

Developer Ergonomics 9.7 / 17

Access Clarity 7.6 / 17

Operational Transparency 6.4 / 11

Contract Governance 2.2 / 10

Discoverability 5.5 / 9

Regulatory Posture 4.8 / 15

Agent readiness — 47/100 · 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 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 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 6 / 6

Protected Resource Metadata 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

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
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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too

4 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
Access Clarity scores 44.7 — up to +11.1 composite points
Contract Governance scores 22.0 — up to +9.4 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/zerorank-ai/apis.yml: open an issue on github.com/api-evangelist/zerorank-ai 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 →

APIs 2

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

ZeroRank API

API for ZeroRank data access.

ZeroRank API

ZeroRank API as documented publicly: 12 operations. Contract generated from the documentation by API Evangelist (2026-10-29); not the provider's own document.

MCP Servers 1

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

ZeroRank MCP Server

Remote MCP server at docs.zerorank.ai.

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Zerorank Ai Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Zerorank Ai Rate Limits

1 limits

RATE LIMITS

Semantic Vocabularies 1

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

Zerorank Ai Context

4 classes · 14 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

ZeroRank API Rules

12 rules · 10 errors 1 warnings 1 info

SPECTRAL

1 properties

JSON SCHEMA

Scroll for all 10

Security Posture 2

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

Zerorank Ai Authentication

1 scheme

SECURITY

Zerorank Ai Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Zerorank Ai Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Get Started 3

Portal, sign-up, and the first successful call

SignUp

SignUp

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

MCPServer

MCPServer

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

ToolCrosswalk

ToolCrosswalk

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

OAuthScopes

OAuthScopes

DomainSecurity

DomainSecurity

Operate 5

Status, limits, changes, and where to get help

RateLimits

StatusPage

Roadmap

ChangeLog

Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 3

Properties that don't map to a standard resource type

AgentCard

AgentCard

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: zerorank-ai
name: ZeroRank
description: ZeroRank provides AI search visibility tracking, allowing brands to monitor how large language models like ChatGPT,
  Claude and Google cite them. The platform offers prompt research, AI visibility analytics, on‑page and off‑page optimization,
  and agentic workflows. Users can access data via a REST API (base https://api.zerorank.ai/api/v1) or MCP chat integration,
  with rate‑limit headers and JSON responses.
image: https://zerorank.ai/assets/apple-touch-icon.png
url: https://artifacts.apis.io/zerorank-ai/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-29 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-29'
modified: '2026-10-29'
tags:
- AI
- SearchVisibility
- Analytics
- Platform
- Company
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: RateLimits
  url: rate-limits/zerorank-ai-rate-limits.yml
- type: Spectral
  url: rules/zerorank-ai-rules.yml
- type: JSONLD
  url: json-ld/zerorank-ai-context.jsonld
- type: Vocabulary
  url: vocabulary/zerorank-ai-vocabulary.yml
- type: DataModel
  url: data-model/zerorank-ai-data-model.yml
- type: Authentication
  url: authentication/zerorank-ai-authentication.yml
- type: OAuthScopes
  url: scopes/zerorank-ai-scopes.yml
- type: Conformance
  url: conformance/zerorank-ai-conformance.yml
- type: LLMsTxt
  url: llms/zerorank-ai-llms.txt
- type: AgentCard
  url: a2a/zerorank-ai-a2a.yml
- type: ToolCrosswalk
  url: mcp/zerorank-ai-tool-crosswalk.yml
- type: MCPServer
  url: mcp/zerorank-ai-mcp.yml
- type: WellKnown
  url: well-known/zerorank-ai-well-known.yml
- type: Hosts
  url: hosts/zerorank-ai-hosts.yml
- type: Vendors
  url: vendors/zerorank-ai-vendors.yml
- type: StatusPage
  url: https://status.zerorank.ai/en/
- type: SignUp
  url: https://app.zerorank.ai/signup
- type: Roadmap
  url: https://zerorank.ai/roadmap
- type: DeveloperPortal
  url: https://dev.zerorank.ai/
- type: ChangeLog
  url: https://zerorank.ai/changelog
- type: DomainSecurity
  url: security/zerorank-ai-domain-security.yml
- type: Website
  url: https://zerorank.ai
- type: Documentation
  url: https://docs.zerorank.ai
- type: APIReference
  url: https://docs.zerorank.ai/api/overview
- type: GettingStarted
  url: https://docs.zerorank.ai/start/what-is-zerorank
- type: Blog
  url: https://zerorank.ai/blog
- type: Pricing
  url: https://zerorank.ai/pricing
- type: TermsOfService
  url: https://zerorank.ai/terms
- type: PrivacyPolicy
  url: https://zerorank.ai/privacy
- type: Support
  url: https://zerorank.ai/contact
apis:
- name: ZeroRank API
  humanURL: https://zerorank.ai
  baseURL: https://api.zerorank.ai/api/v1
  description: API for ZeroRank data access.
  aid: zerorank-ai:zerorank-api
- aid: zerorank-ai:zerorank-ai-api
  name: ZeroRank API
  description: 'ZeroRank API as documented publicly: 12 operations. Contract generated from the documentation by API Evangelist
    (2026-10-29);

    not the provider''s own document.'
  humanURL: https://docs.zerorank.ai/api/overview.md
  baseURL: https://api.zerorank.ai/api/v1
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/zerorank-ai-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/zerorank-ai-patch-brands-id-request-schema.json
  - type: JSONSchema
    url: json-schema/zerorank-ai-get-api-v1-chats-chatid-response-schema.json
  - type: JSONSchema
    url: json-schema/zerorank-ai-get-chats-id-response-schema.json
  - type: JSONSchema
    url: json-schema/zerorank-ai-patch-brands-id-response-schema.json
x-submission-notes: OAS 3.1 ZeroRank REST API
x-coverage:
  state: unreadable
  reason: no-machine-readable-spec
  detail: The API documentation is public but the OpenAPI spec is only accessible via the MCP tool and not via a direct GET
    request.
  evidence:
  - url: https://docs.zerorank.ai
    status: 200
  checked: '2026-10-29'
x-enrichment:
  date: '2026-10-29'
  status: enriched
  artifacts_added: 42
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

ZeroRank API — frequently asked questions

Does ZeroRank have an API?

Yes. APIs.io lists 2 APIs from ZeroRank, including ZeroRank API and ZeroRank API.

Is there an OpenAPI specification for the ZeroRank API?

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

How do I authenticate with the ZeroRank API?

ZeroRank documents its authentication (1 scheme). The details are profiled on APIs.io as Zerorank Ai Authentication.

Does ZeroRank have an MCP server?

Yes. APIs.io lists 1 MCP server for ZeroRank: Remote MCP server at docs.zerorank.ai.

Is the ZeroRank API ready for AI agents?

ZeroRank has a Kin Score of 45.4 out of 100 (developing) and an Agent Readiness score of 47.4 (agent-ready), scored by API Evangelist on 2026-10-31.

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

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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.

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