Verisoul

Verisoul is a fake-account and fraud detection platform that helps businesses stop bots, fake signups, and multi-accounting. It combines device fingerprinting, network and location signals, bot detection, email intelligence (risk, deliverability, breach, and identity signals), phone validation, and account linking with an automated rules engine and ML models. Verisoul also offers hosted identity verification products — Face Match (liveness/selfie dedup) and ID Check (government-ID document verification) — and manages biometric capture, consent, and retention on the customer's behalf. It exposes a REST API (Account, Session, Lists, Phone, Email Intelligence, Face Match, ID Check) authenticated with an x-api-key header, plus web and mobile SDKs and signed webhooks. Verisoul is backed by 500 Global.

Verisoul publishes 8 API contracts indexed on the APIs.io network, including Account API, Email API, Enrollment API, and 5 more. Tagged areas include Company, Fraud Prevention, Identity Verification, Fake Account Detection, and Device Fingerprinting.

The Verisoul catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Verisoul’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 30 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

53.9/100 developing ▬ flat Agent 34/100 agent ready Front door AI 5/6 prominent Heartbeat 78/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

8 published contracts 5 Agent Skills

Company Fraud Prevention Identity VerificationFake Account DetectionDevice Fingerprinting Email Intelligence Bot Detection KYC Trust and Safety Risk Scoring

What this lets a business do 1

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

Application Identity & Verification

AE-160

Verification

POST /liveness/verify-identity POST /liveness/verify-id

Kin Score

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

Composite quality — 53.9/100 · developing

Contract Quality 11.9 / 19

Developer Ergonomics 11.0 / 15

Access Clarity 7.1 / 15

Operational Transparency 1.8 / 10

Contract Governance 1.6 / 9

Discoverability 5.9 / 8

Regulatory Posture 4.4 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 34/100 · agent ready

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 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 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 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 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 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/verisoul/"><img src="https://apis.io/badge/verisoul/card.svg" alt="Verisoul 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)
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)
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too

5 more unmet checks in the Agent Readiness table above.

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

Operational Transparency scores 18.4 — up to +10.6 composite points
Access Clarity scores 47.4 — up to +10.5 composite points
Contract Governance scores 18.2 — up to +9.8 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/verisoul/apis.yml: open an issue on github.com/api-evangelist/verisoul 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Biometrics Testing (biometric recognition vendors, identity verification depth)	distribution	19.2 (thin)	-	-
Official SDKs on Packagist, pub.dev and Hex	distribution	19.2 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

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 8

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

Verisoul Account API

The Account API from Verisoul — 3 operation(s) for account.

Verisoul Email API

The Email API from Verisoul — 1 operation(s) for email.

Verisoul Enrollment API

The Enrollment API from Verisoul — 1 operation(s) for enrollment.

Verisoul List API

The List API from Verisoul — 3 operation(s) for list.

Verisoul Phone API

The Phone API from Verisoul — 1 operation(s) for phone.

Verisoul Public API

The Public API from Verisoul — 1 operation(s) for public.

Verisoul Session API

The Session API from Verisoul — 4 operation(s) for session.

Verisoul Verification API

The Verification API from Verisoul — 3 operation(s) for verification.

Scroll for all 8

Open Collections 8

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

Verisoul Account API

OPEN COLLECTION

Verisoul Account Email API

OPEN COLLECTION

Verisoul Account Enrollment API

OPEN COLLECTION

Verisoul Account List API

OPEN COLLECTION

Verisoul Account Phone API

OPEN COLLECTION

Verisoul Account Public API

OPEN COLLECTION

Verisoul Account Session API

OPEN COLLECTION

Verisoul Account Verification API

OPEN COLLECTION

Scroll for all 8

Agent Skills 5

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

Submit an email for intelligence and process the webhook

AGENT SKILL

Run a Face Match liveness verification

AGENT SKILL

Run an ID Check document verification

AGENT SKILL

Manage account lists for the rules engine

AGENT SKILL

Verify a session and get an account risk decision

AGENT SKILL

Rate Limits 1

Documented rate limits and quota policies.

Verisoul 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.

Verisoul

SLA

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Verisoul Email Intelligence Webhooks

Asynchronous results for the Verisoul Email Intelligence API are delivered to your configured endpoint as signed webhooks. When an email submitted via POST /email (or the batch ...

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Verisoul API Rules

65 rules · 56 errors 7 warnings 2 info

SPECTRAL

OpenAPI Overlays 8

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.

Verisoul Account Overlay

7 actions · documentation · verisoul-account-openapi.json

DERIVED

Verisoul Email Batch Overlay

3 actions · documentation · verisoul-email-batch-openapi.json

DERIVED

Verisoul Email Overlay

3 actions · documentation · verisoul-email-openapi.json

DERIVED

Verisoul Facematch Overlay

2 actions · update · verisoul-facematch-openapi.json

DERIVED

Verisoul Idcheck Overlay

2 actions · update · verisoul-idcheck-openapi.json

DERIVED

Verisoul List Overlay

8 actions · documentation · verisoul-list-openapi.json

DERIVED

Verisoul Phone Overlay

3 actions · documentation · verisoul-phone-openapi.json

DERIVED

Verisoul Session Overlay

5 actions · documentation · verisoul-session-openapi.json

DERIVED

Scroll for all 8

Security Posture 3

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

Verisoul Authentication

apiKey · 2 schemes

SECURITY

Verisoul Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Verisoul Trust Center

trust center published

SECURITY

Agentic Access 1

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

Verisoul Agentic Access

26 operations · 16 acting

AGENTIC

Resources

Get Started 5

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Sandbox

Sandbox

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

AsyncAPI

AsyncAPI

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

LLMsTxt

WellKnown

AgenticAccess

AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Components

Webhooks

Scroll for all 7

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 4

Authentication, authorization, and security posture

DomainSecurity

Authentication

Compliance

TrustCenter

Operate 3

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

RateLimits

RateLimits

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 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Source (apis.yml)

aid: verisoul
name: Verisoul
description: Verisoul is a fake-account and fraud detection platform that helps businesses stop bots, fake signups, and multi-accounting.
  It combines device fingerprinting, network and location signals, bot detection, email intelligence (risk, deliverability,
  breach, and identity signals), phone validation, and account linking with an automated rules engine and ML models. Verisoul
  also offers hosted identity verification products — Face Match (liveness/selfie dedup) and ID Check (government-ID document
  verification) — and manages biometric capture, consent, and retention on the customer's behalf. It exposes a REST API (Account,
  Session, Lists, Phone, Email Intelligence, Face Match, ID Check) authenticated with an x-api-key header, plus web and mobile
  SDKs and signed webhooks. Verisoul is backed by 500 Global.
url: https://raw.githubusercontent.com/api-evangelist/verisoul/refs/heads/main/apis.yml
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: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - rate-limits
  - security
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://cdn.prod.website-files.com/6627605478f226ce86d5c27f/6a5790e9790a84c9ea0498ca_verisoul-logo_og-meta-preview.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-21'
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-17
x-docs-hosting: vercel
tags:
- Company
- Fraud Prevention
- Identity Verification
- Fake Account Detection
- Device Fingerprinting
- Email Intelligence
- Bot Detection
- KYC
- Trust and Safety
- Risk Scoring
tags_raw:
- Company
- Fraud Detection
- Identity Verification
- Fake Account Detection
- Device Fingerprinting
- Email Intelligence
- Bot Detection
- KYC
- Trust and Safety
- Risk Scoring
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: verisoul:verisoul-account-api
  name: Verisoul Account API
  description: The Account API from Verisoul — 3 operation(s) for account.
  humanURL: https://docs.verisoul.ai/api-reference/session/get
  baseURL: https://api.prod.verisoul.ai
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/verisoul-account-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/verisoul-email-asyncapi.yml
- aid: verisoul:verisoul-email-api
  name: Verisoul Email API
  description: The Email API from Verisoul — 1 operation(s) for email.
  humanURL: https://docs.verisoul.ai/api-reference/session/get
  baseURL: https://api.prod.verisoul.ai
  tags:
  - Email
  properties:
  - type: OpenAPI
    url: openapi/verisoul-email-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/verisoul-email-asyncapi.yml
- aid: verisoul:verisoul-enrollment-api
  name: Verisoul Enrollment API
  description: The Enrollment API from Verisoul — 1 operation(s) for enrollment.
  humanURL: https://docs.verisoul.ai/api-reference/session/get
  baseURL: https://api.prod.verisoul.ai
  tags:
  - Enrollment
  properties:
  - type: OpenAPI
    url: openapi/verisoul-enrollment-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/verisoul-email-asyncapi.yml
- aid: verisoul:verisoul-list-api
  name: Verisoul List API
  description: The List API from Verisoul — 3 operation(s) for list.
  humanURL: https://docs.verisoul.ai/api-reference/session/get
  baseURL: https://api.prod.verisoul.ai
  tags:
  - List
  properties:
  - type: OpenAPI
    url: openapi/verisoul-list-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/verisoul-email-asyncapi.yml
- aid: verisoul:verisoul-phone-api
  name: Verisoul Phone API
  description: The Phone API from Verisoul — 1 operation(s) for phone.
  humanURL: https://docs.verisoul.ai/api-reference/session/get
  baseURL: https://api.prod.verisoul.ai
  tags:
  - Phone
  properties:
  - type: OpenAPI
    url: openapi/verisoul-phone-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/verisoul-email-asyncapi.yml
- aid: verisoul:verisoul-public-api
  name: Verisoul Public API
  description: The Public API from Verisoul — 1 operation(s) for public.
  humanURL: https://docs.verisoul.ai/api-reference/session/get
  baseURL: https://api.prod.verisoul.ai
  tags:
  - Public
  properties:
  - type: OpenAPI
    url: openapi/verisoul-public-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/verisoul-email-asyncapi.yml
- aid: verisoul:verisoul-session-api
  name: Verisoul Session API
  description: The Session API from Verisoul — 4 operation(s) for session.
  humanURL: https://docs.verisoul.ai/api-reference/session/get
  baseURL: https://api.prod.verisoul.ai
  tags:
  - Sessions
  tags_raw:
  - Session
  properties:
  - type: OpenAPI
    url: openapi/verisoul-session-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/verisoul-email-asyncapi.yml
- aid: verisoul:verisoul-verification-api
  name: Verisoul Verification API
  description: The Verification API from Verisoul — 3 operation(s) for verification.
  humanURL: https://docs.verisoul.ai/api-reference/session/get
  baseURL: https://api.prod.verisoul.ai
  tags:
  - Verification
  properties:
  - type: OpenAPI
    url: openapi/verisoul-verification-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/verisoul-email-asyncapi.yml
common:
- type: CapabilityMap
  url: capabilities/verisoul-capability-edges.yml
  name: Verisoul Business Capability Map
- type: Overlay
  url: overlays/verisoul-account-overlay.yaml
- type: DomainSecurity
  url: security/verisoul-domain-security.yml
- type: Website
  url: https://www.verisoul.ai
- type: DeveloperPortal
  url: https://docs.verisoul.ai
- type: Documentation
  url: https://docs.verisoul.ai
- type: APIReference
  url: https://docs.verisoul.ai/api-reference/introduction
- type: GettingStarted
  url: https://docs.verisoul.ai/integration/overview
- type: Support
  url: mailto:support@verisoul.ai
- type: Blog
  url: https://www.verisoul.ai/blog
- type: GitHubOrganization
  url: https://github.com/verisoul
- type: Pricing
  url: https://www.verisoul.ai/pricing
- type: SignUp
  url: https://dashboard.verisoul.ai
- type: Login
  url: https://dashboard.verisoul.ai
- type: TermsOfService
  url: https://policies.verisoul.ai/terms.html
- type: PrivacyPolicy
  url: https://policies.verisoul.ai/privacy.html
- type: StatusPage
  url: https://status.verisoul.ai/
- type: Authentication
  url: authentication/verisoul-authentication.yml
- type: Conventions
  url: conventions/verisoul-conventions.yml
- type: ErrorCatalog
  url: errors/verisoul-problem-types.yml
- type: RateLimits
  url: rate-limits/verisoul-rate-limits.yml
- type: Lifecycle
  url: lifecycle/verisoul-lifecycle.yml
- type: Sandbox
  url: sandbox/verisoul-sandbox.yml
- type: Conformance
  url: conformance/verisoul-conformance.yml
- type: Compliance
  url: https://trust.verisoul.ai/
- type: TrustCenter
  url: security/verisoul-trust-center.yml
- type: DataModel
  url: data-model/verisoul-data-model.yml
- type: Components
  url: components/verisoul-components.yml
- type: X-MCPServerCandidate
  url: mcp/verisoul-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: LLMsTxt
  url: llms/verisoul-llms.txt
- type: WellKnown
  url: well-known/verisoul-well-known.yml
- type: Packages
  url: packages/verisoul-packages.yml
- type: SDKs
  url: packages/verisoul-packages.yml
- type: AsyncAPI
  url: asyncapi/verisoul-email-asyncapi.yml
- type: Webhooks
  url: asyncapi/verisoul-email-asyncapi.yml
- type: AgenticAccess
  url: agentic-access/verisoul-agentic-access.yml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 39
  pass: local-v1

Verisoul API — frequently asked questions

Does Verisoul have an API?

Yes. APIs.io lists 8 APIs from Verisoul, including Verisoul Account API, Verisoul Email API and Verisoul Enrollment API, and 5 more.

Is there an OpenAPI specification for the Verisoul API?

Yes. APIs.io indexes 8 OpenAPI specifications for Verisoul, each linked for download from this page.

How do I authenticate with the Verisoul API?

Verisoul uses bearer-token authentication (apiKey · 2 schemes). The details are profiled on APIs.io as Verisoul Authentication.

Is the Verisoul API ready for AI agents?

Verisoul has a Kin Score of 53.9 out of 100 (developing) and an Agent Readiness score of 34.0 (agent-ready), 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/verisoul"

All providers

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

Every operation they expose

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

How their score was established

curl "https://apis.io/api/v1/providers/verisoul/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.