Gender API

Gender-API is an AI-powered service that determines whether a first name is more likely to be used by males or females, with optional localization by country, IP address, or browser locale. The API returns a gender prediction with an accuracy score and supports multi-name lookups, email parsing, full-name splitting, and country-of-origin queries. Gender-API is delivered as a metered REST API with credit-based subscription plans and integrates with Zapier, Postman, Google Sheets, and HubSpot.

Gender API publishes 4 API contracts indexed on the APIs.io network, including Country Of Origin API, Gender API, Statistic API, and 1 more. Tagged areas include Artificial Intelligence, Demographics, Gender, Identity, and Name.

The Gender API catalog on APIs.io includes 1 Spectral governance ruleset.

Gender API’s developer surface includes authentication, documentation, pricing, signup flow, engineering blog, and 13 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

32.1/100 thin ▬ flat Agent 20/100 agent aware Front door AI 5/6 prominent Heartbeat 84/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract

Artificial Intelligence Demographics Gender Identity Name Personal Data

Kin Score

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

Composite quality — 32.1/100 · thin

Contract Quality 9.1 / 19

Developer Ergonomics 3.6 / 15

Access Clarity 3.8 / 15

Operational Transparency 2.6 / 10

Contract Governance 1.2 / 9

Discoverability 4.8 / 8

Regulatory Posture 1.6 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 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 0 / 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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Show this score on your site.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/gender-api/"><img src="https://apis.io/badge/gender-api/card.svg" alt="Gender API on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
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
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
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)

9 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 23.8 — up to +15.2 composite points
Access Clarity scores 25.0 — up to +15.0 composite points
Contract Quality scores 48.6 — up to +12.9 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/gender-api/apis.yml: open an issue on github.com/api-evangelist/gender-api 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.

OpenAPI

measured — observed by APIs.io (published)

APIs 4

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

Gender API Country Of Origin API

The Country Of Origin API from Gender API — 1 operation(s) for country of origin.

Gender API Gender API

The Gender API from Gender API — 6 operation(s) for gender.

Gender API Statistic API

The Statistic API from Gender API — 1 operation(s) for statistic.

Gender API Signup API

The Signup API from Gender API — 1 operation(s) for signup.

Open Collections 4

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

Gender Get API

OPEN COLLECTION

Gender Get Get Country Of Origin API

OPEN COLLECTION

Gender Get Get Stats API

OPEN COLLECTION

Gender API

OPEN COLLECTION

Gender API pricing

Not yet checked against Gender API's own pricing page. Compiled by API Evangelist on 2026-05-04; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free freemium	Free
Professional paid	Free
Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

Free Tier Default: 10 requests per minute
Free Tier Monthly Quota: 1000 requests per month
Professional Tier Default: 100 requests per minute

Compiled by API Evangelist, not yet checked against Gender API's documentation. All 5 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

Gender Api Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Gender Api Rate Limits

5 limits

RATE LIMITS

Service Levels 1

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

Gender API

SLA

FinOps 1

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

Gender Api Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Gender API API Rules

45 rules · 43 errors 1 warnings 1 info

SPECTRAL

Security Posture 2

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

Gender Api Authentication

apiKey · 1 scheme

SECURITY

Gender Api Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Gender Api Agentic Access

3 operations

3 operations · 0 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Signup

Signup

Login

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

Contact

Contact

Commercial 5

Pricing, plans, and the legal terms of use

Plans

FinOps

Pricing

TermsOfService

PrivacyPolicy

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: gender-api
name: Gender API
description: Gender-API is an AI-powered service that determines whether a first name is more likely to be used by males or
  females, with optional localization by country, IP address, or browser locale. The API returns a gender prediction with
  an accuracy score and supports multi-name lookups, email parsing, full-name splitting, and country-of-origin queries. Gender-API
  is delivered as a metered REST API with credit-based subscription plans and integrates with Zapier, Postman, Google Sheets,
  and HubSpot.
type: Index
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: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
position: Consuming
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/gender-api.png
created: '2025-01-07'
modified: '2026-05-19'
url: https://raw.githubusercontent.com/api-evangelist/gender-api/refs/heads/main/apis.yml
specificationVersion: '0.23'
tags:
- Artificial Intelligence
- Demographics
- Gender
- Identity
- Name
- Personal Data
tags_raw:
- AI
- Demographics
- Gender
- Identity
- Names
- Personal Data
apis:
- aid: gender-api:gender-api-country-of-origin-api
  name: Gender API Country Of Origin API
  description: The Country Of Origin API from Gender API — 1 operation(s) for country of origin.
  humanURL: https://gender-api.com/
  tags:
  - Country Of Origin
  properties:
  - type: OpenAPI
    url: openapi/gender-api-country-of-origin-api-openapi.yml
  - type: Documentation
    url: https://gender-api.com/en/api-docs
  - type: Pricing
    url: https://gender-api.com/en/pricing
  - type: Signup
    url: https://gender-api.com/en/signup
  - type: StatusPage
    url: https://gender-api.com/
- aid: gender-api:gender-api-gender-api
  name: Gender API Gender API
  description: The Gender API from Gender API — 6 operation(s) for gender.
  humanURL: https://gender-api.com/
  tags:
  - Gender
  properties:
  - type: OpenAPI
    url: openapi/gender-api-gender-api-openapi.yml
  - type: Documentation
    url: https://gender-api.com/en/api-docs
  - type: Pricing
    url: https://gender-api.com/en/pricing
  - type: Signup
    url: https://gender-api.com/en/signup
  - type: StatusPage
    url: https://gender-api.com/
- aid: gender-api:gender-api-statistic-api
  name: Gender API Statistic API
  description: The Statistic API from Gender API — 1 operation(s) for statistic.
  humanURL: https://gender-api.com/
  tags:
  - statistic
  tags_raw:
  - Statistic
  properties:
  - type: OpenAPI
    url: openapi/gender-api-statistic-api-openapi.yml
  - type: Documentation
    url: https://gender-api.com/en/api-docs
  - type: Pricing
    url: https://gender-api.com/en/pricing
  - type: Signup
    url: https://gender-api.com/en/signup
  - type: StatusPage
    url: https://gender-api.com/
- aid: gender-api:gender-api-signup-api
  name: Gender API Signup API
  description: The Signup API from Gender API — 1 operation(s) for signup.
  humanURL: https://gender-api.com/
  tags:
  - Sign Up
  tags_raw:
  - Signup
  properties:
  - type: OpenAPI
    url: openapi/gender-api-signup-api-openapi.yml
  - type: Documentation
    url: https://gender-api.com/en/api-docs
  - type: Pricing
    url: https://gender-api.com/en/pricing
  - type: Signup
    url: https://gender-api.com/en/signup
  - type: StatusPage
    url: https://gender-api.com/
common:
- type: Plans
  url: plans/gender-api-plans-pricing.yml
- type: RateLimits
  url: rate-limits/gender-api-rate-limits.yml
- type: FinOps
  url: finops/gender-api-finops.yml
- type: AgenticAccess
  url: agentic-access/gender-api-agentic-access.yml
- type: DomainSecurity
  url: security/gender-api-domain-security.yml
- type: Authentication
  url: authentication/gender-api-authentication.yml
- type: GitHubOrganization
  url: https://github.com/GenderAPI
- type: LinkedIn
  url: https://www.linkedin.com/company/genderapi
- type: Website
  url: https://gender-api.com/
- type: Documentation
  url: https://gender-api.com/en/api-docs
- type: Pricing
  url: https://gender-api.com/en/pricing
- type: Signup
  url: https://gender-api.com/en/signup
- type: Login
  url: https://gender-api.com/en/login
- type: Contact
  url: https://gender-api.com/en/contact
- type: TermsOfService
  url: https://gender-api.com/en/terms-and-conditions
- type: PrivacyPolicy
  url: https://gender-api.com/en/privacy
- type: Blog
  url: https://gender-api.com/en/blog
- type: LlmsText
  url: https://gender-api.com/llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Gender API — frequently asked questions

Does Gender API have an API?

Yes. APIs.io lists 4 APIs from Gender API, including Gender API Country Of Origin API, Gender API Gender API and Gender API Statistic API, and 1 more.

Is there an OpenAPI specification for the Gender API?

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

How do I authenticate with the Gender API?

Gender API uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Gender Api Authentication.

How much does the Gender API cost?

APIs.io lists 3 pricing plans for Gender API, with each plan's price, limits and inclusions under Pricing on this page.

Is the Gender API ready for AI agents?

Gender API has a Kin Score of 32.1 out of 100 (thin) and an Agent Readiness score of 20.0 (agent-aware), scored by API Evangelist on 2026-11-06.

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

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
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.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/gender-api"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/gender-api/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/gender-api/evidence"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

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.