DemandSphere

DemandSphere is a unified AI search visibility platform (founded 2010, Y Combinator S10) that tracks brand presence across traditional search engine results pages, AI search engines (ChatGPT, Gemini, Perplexity, AI Overviews, AI Mode), and agentic surfaces. Its modular products cover DemandMetrics SERP analytics, DemandMetrics for Gen AI (LLM visibility and citation tracking), DemandSphere Agents workflow automation, Analytics AX log-file analytics, and Search Intelligence, a BigQuery data warehouse. The DemandSphere REST API (v5.0) exposes rank tracking, ranking trends, keyword groups, local rankings, landing matches, search-engine summaries, and site hierarchy data as JSON over api-key authentication, across 200+ markets and 10+ search engines, and is complemented by a first-party Model Context Protocol (MCP) server for agent access.

DemandSphere publishes 4 API contracts indexed on the APIs.io network, including Keywords API, Pages API, SearchEngines API, and 1 more. Tagged areas include Company, SEO, Search Intelligence, SERP Analytics, and AI Search.

The DemandSphere catalog on APIs.io includes 1 Spectral governance ruleset.

DemandSphere’s developer surface includes authentication, documentation, API reference, getting-started guide, pricing, engineering blog, support, and 28 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

59.7/100 strong ▬ flat Agent 47/100 agent ready Front door AI 6/6 dominant Heartbeat 63/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessPaid

1 published contract 1 MCP Servers 3 Agent Skills

Company SEO Search IntelligenceSERP AnalyticsAI SearchLLM VisibilityRank Tracking Analytics MCP

What this lets a business do 1

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

Marketing Management

BC-400

Keywords

Kin Score

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

Composite quality — 59.7/100 · strong

Contract Quality 10.0 / 21

Developer Ergonomics 8.4 / 17

Access Clarity 17.0 / 17

Operational Transparency 3.2 / 11

Contract Governance 3.2 / 10

Discoverability 6.4 / 9

Regulatory Posture 5.3 / 15

Agent readiness — 47/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 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 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 6 / 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 does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

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):

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)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
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
Protected Resource Metadata +5 pts — a served /.well-known/oauth-protected-resource carrying `resource` (documented), and naming its authorization_servers (verified)

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 46.9 — up to +13.3 composite points
Developer Ergonomics scores 49.4 — up to +10.1 composite points
Operational Transparency scores 28.9 — up to +9.2 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/demandsphere/apis.yml: open an issue on github.com/api-evangelist/demandsphere 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 3

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 (verified)

Dynamic Client Registration

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

APIs 4

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

DemandSphere Keywords API

The Keywords API from DemandSphere — 6 operation(s) for keywords.

DemandSphere Pages API

The Pages API from DemandSphere — 1 operation(s) for pages.

DemandSphere SearchEngines API

The SearchEngines API from DemandSphere — 1 operation(s) for searchengines.

DemandSphere Sites API

The Sites API from DemandSphere — 2 operation(s) for sites.

Open Collections 4

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

DemandSphere API v5.0 Documentation Keywords API

OPEN COLLECTION

DemandSphere API v5.0 Documentation Keywords Pages API

OPEN COLLECTION

DemandSphere API v5.0 Documentation Keywords SearchEngines API

OPEN COLLECTION

DemandSphere API v5.0 Documentation Keywords Sites API

OPEN COLLECTION

MCP Servers 1

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

DemandSphere MCP Server

Remote MCP server at www.demandsphere.com; 8 tools listed.

MCP SERVER

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

Audit landing pages against ranking keywords

AGENT SKILL

Compare search engine performance

AGENT SKILL

Track keyword ranking trends

AGENT SKILL

DemandSphere API pricing

Prices published by DemandSphere, read 2026-10-28 from www.demandsphere.com/pricing/.

Plan	Price
Starter	$79/mo billed annually ($948/yr) Includes: 1,000 keywords, 100 prompts, or any blend; 1 prompt = 10 keywords; unlimited users and domains; dail
Pro	$208/mo billed annually ($2,496/yr) Includes: 2,500 keywords, 250 prompts, or any blend; Data Studio templates; scheduled reports; priority suppor
Enterprise	Custom Includes: Custom prompt + keyword volume, SSO, dedicated strategist, 24hr SLA, add-ons
Search Intelligence (BigQuery) add-on	+20% of your plan Includes: Direct BigQuery access, automated data pipeline
Analytics AX Hot Storage	$0.40 per GB Includes: Most recent 30 days
Analytics AX Warm Storage	$0.012 per GB Includes: Up to 11 months
Analytics AX Cold Storage	$0.025 per GB Includes: Archive data

Plan details, limits and sources →

Billed by: gb · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Demandsphere Plans Pricing

7 plans

PLANS

Demandsphere Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Demandsphere Rate Limits

0 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

DemandSphere

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Demandsphere Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

DemandSphere API Rules

30 rules · 28 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 5

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.

Demandsphere Keywords Api Overlay

2 actions · update · demandsphere-keywords-api-openapi.yml

DERIVED

Demandsphere Openapi Overlay

2 actions · documentation · demandsphere-openapi-original.json

DERIVED

Demandsphere Pages Api Overlay

2 actions · update · demandsphere-pages-api-openapi.yml

DERIVED

Demandsphere Searchengines Api Overlay

2 actions · update · demandsphere-searchengines-api-openapi.yml

DERIVED

Demandsphere Sites Api Overlay

2 actions · update · demandsphere-sites-api-openapi.yml

DERIVED

Security Posture 4

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

Demandsphere Authentication

apiKey · 1 scheme

SECURITY

Demandsphere Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Demandsphere Vulnerability Disclosure

no policy recorded

SECURITY

Demandsphere Trust Center

SOC 2, GDPR

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Demandsphere Agentic Access

10 operations

10 operations · 0 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

MCPServer

LLMsTxt

WellKnown

AgenticAccess

AgentSkill

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Lifecycle

Lifecycle

Conformance

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

ToolCrosswalk

ToolCrosswalk

Access & Security 6

Authentication, authorization, and security posture

TrustCenter

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

Authentication

Compliance

Security

Operate 6

Status, limits, changes, and where to get help

Support

StatusPage

ChangeLog

RateLimits

ChangeLog

HelpCenter

Commercial 4

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

Plans

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Source (apis.yml)

aid: demandsphere
name: DemandSphere
description: DemandSphere is a unified AI search visibility platform (founded 2010, Y Combinator S10) that tracks brand presence
  across traditional search engine results pages, AI search engines (ChatGPT, Gemini, Perplexity, AI Overviews, AI Mode),
  and agentic surfaces. Its modular products cover DemandMetrics SERP analytics, DemandMetrics for Gen AI (LLM visibility
  and citation tracking), DemandSphere Agents workflow automation, Analytics AX log-file analytics, and Search Intelligence,
  a BigQuery data warehouse. The DemandSphere REST API (v5.0) exposes rank tracking, ranking trends, keyword groups, local
  rankings, landing matches, search-engine summaries, and site hierarchy data as JSON over api-key authentication, across
  200+ markets and 10+ search engines, and is complemented by a first-party Model Context Protocol (MCP) server for agent
  access.
url: https://raw.githubusercontent.com/api-evangelist/demandsphere/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: sales-assisted
  trial: false
  try_now: false
  public: false
  label: Paid plans from $79/mo, demo-led signup
  confidence: high
  source:
  - https://www.demandsphere.com/pricing/
  - authentication
  generated: '2026-08-13'
  method: searched
  note: Published tiers Starter $79/mo and Pro $208/mo (annual billing) plus a custom Enterprise tier; API access is included
    on every tier. No free trial is advertised and the primary call to action is "Get a demo". See plans/demandsphere-plans-pricing.yml.
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-08-13'
image: https://www.demandsphere.com/favicon.ico
tags:
- Company
- SEO
- Search Intelligence
- SERP Analytics
- AI Search
- LLM Visibility
- Rank Tracking
- Analytics
- MCP
tags_raw:
- Company
- SEO
- Search Intelligence
- SERP Analytics
- AI Search
- LLM Visibility
- Rank Tracking
- Analytics
- API
- MCP
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: demandsphere:demandsphere-keywords-api
  name: DemandSphere Keywords API
  description: The Keywords API from DemandSphere — 6 operation(s) for keywords.
  humanURL: https://www.demandsphere.com/platform/apis/rest-apis/
  baseURL: https://api.demandsphere.com
  tags:
  - Keywords
  properties:
  - type: OpenAPI
    url: openapi/demandsphere-keywords-api-openapi.yml
  - type: Overlay
    url: overlays/demandsphere-keywords-api-overlay.yaml
  - type: DataModel
    url: data-model/demandsphere-data-model.yml
  - type: ErrorCatalog
    url: errors/demandsphere-problem-types.yml
  - type: Conventions
    url: conventions/demandsphere-conventions.yml
- aid: demandsphere:demandsphere-pages-api
  name: DemandSphere Pages API
  description: The Pages API from DemandSphere — 1 operation(s) for pages.
  humanURL: https://www.demandsphere.com/platform/apis/rest-apis/
  baseURL: https://api.demandsphere.com
  tags:
  - Pages
  properties:
  - type: OpenAPI
    url: openapi/demandsphere-pages-api-openapi.yml
  - type: Overlay
    url: overlays/demandsphere-pages-api-overlay.yaml
  - type: DataModel
    url: data-model/demandsphere-data-model.yml
  - type: ErrorCatalog
    url: errors/demandsphere-problem-types.yml
  - type: Conventions
    url: conventions/demandsphere-conventions.yml
- aid: demandsphere:demandsphere-searchengines-api
  name: DemandSphere SearchEngines API
  description: The SearchEngines API from DemandSphere — 1 operation(s) for searchengines.
  humanURL: https://www.demandsphere.com/platform/apis/rest-apis/
  baseURL: https://api.demandsphere.com
  tags:
  - Search Engines
  tags_raw:
  - SearchEngines
  properties:
  - type: OpenAPI
    url: openapi/demandsphere-searchengines-api-openapi.yml
  - type: Overlay
    url: overlays/demandsphere-searchengines-api-overlay.yaml
  - type: DataModel
    url: data-model/demandsphere-data-model.yml
  - type: ErrorCatalog
    url: errors/demandsphere-problem-types.yml
  - type: Conventions
    url: conventions/demandsphere-conventions.yml
- aid: demandsphere:demandsphere-sites-api
  name: DemandSphere Sites API
  description: The Sites API from DemandSphere — 2 operation(s) for sites.
  humanURL: https://www.demandsphere.com/platform/apis/rest-apis/
  baseURL: https://api.demandsphere.com
  tags:
  - Sites
  properties:
  - type: OpenAPI
    url: openapi/demandsphere-sites-api-openapi.yml
  - type: Overlay
    url: overlays/demandsphere-sites-api-overlay.yaml
  - type: DataModel
    url: data-model/demandsphere-data-model.yml
  - type: ErrorCatalog
    url: errors/demandsphere-problem-types.yml
  - type: Conventions
    url: conventions/demandsphere-conventions.yml
common:
- type: CapabilityMap
  url: capabilities/demandsphere-capability-edges.yml
  name: DemandSphere Business Capability Map
- type: Overlay
  url: overlays/demandsphere-openapi-overlay.yaml
- type: TrustCenter
  url: security/demandsphere-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/demandsphere-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/demandsphere-domain-security.yml
- type: Authentication
  url: authentication/demandsphere-authentication.yml
- type: Website
  url: https://demandsphere.com
- type: DeveloperPortal
  url: https://www.demandsphere.com/solutions/developers/
- type: Documentation
  url: https://help.demandsphere.com
- type: APIReference
  url: https://www.demandsphere.com/platform/apis/rest-apis/
- type: GettingStarted
  url: https://www.demandsphere.com/platform/apis/
- type: Pricing
  url: https://www.demandsphere.com/pricing/
- type: Blog
  url: https://www.demandsphere.com/blog/
- type: Support
  url: https://www.demandsphere.com/resources/help-center/
- type: SignUp
  url: https://www.demandsphere.com/login/
- type: TermsOfService
  url: https://www.demandsphere.com/terms-of-service/
- type: PrivacyPolicy
  url: https://www.demandsphere.com/privacy-policy/
- type: GitHubOrganization
  url: https://github.com/DemandSphereDev
- type: StatusPage
  url: https://status.demandsphere.com/
- type: ChangeLog
  url: https://help.demandsphere.com/changelog
- type: Compliance
  url: https://www.demandsphere.com/security/
- type: Security
  url: https://www.demandsphere.com/security/
- type: MCPServer
  url: mcp/demandsphere-mcp.yml
- type: LLMsTxt
  url: llms/demandsphere-llms.txt
- type: WellKnown
  url: well-known/demandsphere-well-known.yml
- type: Lifecycle
  url: lifecycle/demandsphere-lifecycle.yml
- type: Conformance
  url: conformance/demandsphere-conformance.yml
- type: Packages
  url: packages/demandsphere-packages.yml
- type: AgenticAccess
  url: agentic-access/demandsphere-agentic-access.yml
- type: AgentSkill
  url: skills/_index.yml
- type: ToolCrosswalk
  url: mcp/demandsphere-tool-crosswalk.yml
- type: Plans
  url: plans/demandsphere-plans-pricing.yml
- type: RateLimits
  url: rate-limits/demandsphere-rate-limits.yml
- type: ChangeLog
  url: changelog/demandsphere-changelog.yml
- type: HelpCenter
  url: https://www.demandsphere.com/resources/help-center/
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 11
  pass: local-v1
  note: Live MCP tools/list probed at https://www.demandsphere.com/mcp (8 tools); plans, rate limits, changelog and a REST/MCP
    tool crosswalk added; no A2A agent card served (404 on both hosts).

DemandSphere API — frequently asked questions

Does DemandSphere have an API?

Yes. APIs.io lists 4 APIs from DemandSphere, including DemandSphere Keywords API, DemandSphere Pages API and DemandSphere SearchEngines API, and 1 more.

Is there an OpenAPI specification for the DemandSphere API?

Yes. APIs.io indexes 4 OpenAPI specifications for DemandSphere, each linked for download from this page.

How do I authenticate with the DemandSphere API?

DemandSphere documents its authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Demandsphere Authentication.

How much does the DemandSphere API cost?

DemandSphere publishes its prices; its Starter plan is $79/mo billed annually ($948/yr) as of 2026-10-28. APIs.io lists 7 pricing plans for DemandSphere, with each plan's price, limits and inclusions under Pricing on this page.

Does DemandSphere have an MCP server?

Yes. APIs.io lists 1 MCP server for DemandSphere: Remote MCP server at www.demandsphere.com; 8 tools listed.

Is the DemandSphere API ready for AI agents?

DemandSphere has a Kin Score of 59.7 out of 100 (strong) and an Agent Readiness score of 47.1 (agent-ready), scored by API Evangelist on 2026-11-06.

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