Prove

Prove is a phone-centric digital identity verification and authentication platform. The Prove API (v3) uses the consumer's mobile phone number and cryptographic possession signals to power Pre-Fill identity prefill, passive Trust Score verification, Unified Authentication, phone-based Auth and a persistent Identity Manager - all behind an OAuth 2.0 client-credentials REST interface served from regional hosts (https://platform.proveapis.com/v3 for the US, https://platform.eu.proveapis.com/v3 for the EU, with UAT sandboxes for each). Official server SDKs ship for TypeScript, Go, Java and .NET, plus web and mobile Auth client SDKs and a public Postman workspace.

Prove publishes 7 API contracts indexed on the APIs.io network, including Auth API, Authentication API, Domain API, and 4 more. Tagged areas include Identity Verification, Authentication, Phone Intelligence, KYC, and Fraud Prevention.

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

Prove’s developer surface includes sandbox, authentication, documentation, engineering blog, support, signup flow, and 36 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

49.6/100 developing ▬ flat Agent 41/100 agent ready Front door AI 5/6 prominent saas Full breakdown ↓
scored 2026-10-17 · rubric v0.24.0

AccessFreemiumSelf serve⚡ Free to try

1 published contract 1 MCP Servers

Identity Verification Authentication Phone Intelligence KYC Fraud Prevention

What this lets a business do 1

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

Cybersecurity Management

BC-620

Auth

POST /server/auth/start POST /device/revoke

Kin Score

Kin Score How this is scored →
scored 2026-10-17 · rubric v0.24.0

Composite quality — 49.6/100 · developing

Contract Quality 11.8 / 19

Developer Ergonomics 7.4 / 15

Access Clarity 6.3 / 15

Operational Transparency 1.8 / 10

Contract Governance 2.0 / 9

Discoverability 5.8 / 8

Regulatory Posture 5.9 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 41/100 · 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 5 / 5

Registration Without a Human 6 / 6

Agentic Commerce Well-Known Document 0 / 5

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/.

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 github.com/api-evangelist/prove: open an issue to ask a question, or submit a pull request to add artifacts. 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
RegTech, AML/KYC and Money Transmission	distribution	9.6 (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.

APIs 7

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

Prove Auth API

Phone-based authentication and device binding.

Prove Authentication API

OAuth 2.0 token issuance.

Prove Domain API

Cross-domain linking of identity scopes.

Prove Identity API

Persistent identity lifecycle management.

Prove Identity Verification API

Ordered Pre-Fill verification flow - start, validate, challenge, complete.

Prove Pre-Fill API

Identity discovery and verified attribute retrieval.

Prove Trust Score API

Unified Authentication possession and trust evaluation.

OPEN COLLECTION

Scroll for all 9

MCP Servers 1

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

Prove MCP Server

A remote MCP server answers at https://developer.prove.com/mcp, the Mintlify-hosted documentation host (CNAME cname.mintlify.builders). An anonymous JSON-RPC tools/list on 2026-...

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Prove Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Prove Rate Limits

0 limits

RATE LIMITS

FinOps 1

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

Prove Finops

FINOPS

Semantic Vocabularies 1

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

Prove Context

25 classes · 51 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Prove API Rules

17 rules · 15 errors 1 warnings 1 info

SPECTRAL

3 actions · servers · prove-pre-fill-api-openapi.yml

DERIVED

Prove Trust Score Api Overlay

3 actions · servers · prove-trust-score-api-openapi.yml

DERIVED

Scroll for all 7

14 properties

JSON SCHEMA

V3UnifyStatusResponse

5 properties

JSON SCHEMA

Scroll for all 21

Security Posture 3

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

Prove Authentication

http/oauth2 · 2 schemes

SECURITY

Prove Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Prove Trust Center

trust center published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Prove Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Agentic Access 1

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

Prove Agentic Access

26 operations · 19 acting · 1 human-in-the-loop

26 operations · 19 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

Sandbox

Sandbox

DeveloperPortal

DeveloperPortal

SignUp

SignUp

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgentSkill

LLMsTxt

MCPServer

WellKnown

AgenticAccess

Design & Contract 8

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conventions

Lifecycle

ErrorCatalog

Conformance

Scroll for all 8

Build 5

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk

ToolCrosswalk

SDKs

SDKs

Packages

Packages

GitHubOrganization

GitHubOrganization

Postman

Postman

Access & Security 5

Authentication, authorization, and security posture

OAuthScopes

SecurityTxt

TrustCenter

DomainSecurity

Authentication

Operate 3

Status, limits, changes, and where to get help

RateLimits

RateLimits

StatusPage

StatusPage

Support

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

FinOps

TermsOfService

PrivacyPolicy

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 5

Properties that don't map to a standard resource type

Overlay

Hosts

Vendors

Leadership

CapabilityMap

Source (apis.yml)

aid: prove
url: https://raw.githubusercontent.com/api-evangelist/prove/refs/heads/main/apis.yml
name: Prove
kind: company
description: Prove is a phone-centric digital identity verification and authentication platform. The Prove API (v3) uses the
  consumer's mobile phone number and cryptographic possession signals to power Pre-Fill identity prefill, passive Trust Score
  verification, Unified Authentication, phone-based Auth and a persistent Identity Manager - all behind an OAuth 2.0 client-credentials
  REST interface served from regional hosts (https://platform.proveapis.com/v3 for the US, https://platform.eu.proveapis.com/v3
  for the EU, with UAT sandboxes for each). Official server SDKs ship for TypeScript, Go, Java and .NET, plus web and mobile
  Auth client SDKs and a public Postman workspace.
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
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/prove.png
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-08
tags:
- Identity Verification
- Authentication
- Phone Intelligence
- KYC
- Fraud Prevention
created: '2026-06-21'
modified: '2026-10-08'
specificationVersion: '0.23'
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
common:
- type: OAuthScopes
  url: scopes/prove-scopes.yml
- type: Plans
  url: plans/prove-plans-pricing.yml
- type: RateLimits
  url: rate-limits/prove-rate-limits.yml
- type: SecurityTxt
  url: well-known/prove-status-security.txt
- type: Spectral
  url: rules/prove-rules.yml
- type: JSONLD
  url: json-ld/prove-context.jsonld
- type: Vocabulary
  url: vocabulary/prove-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/prove-data-model.yml
- type: Conventions
  url: conventions/prove-conventions.yml
- type: Sandbox
  url: sandbox/prove-sandbox.yml
- type: TrustCenter
  url: security/prove-trust-center.yml
- type: StatusPage
  url: https://status.prove.com/
- type: Lifecycle
  url: lifecycle/prove-lifecycle.yml
- type: ErrorCatalog
  url: errors/prove-problem-types.yml
- type: Conformance
  url: conformance/prove-conformance.yml
- type: Overlay
  url: overlays/prove-auth-api-overlay.yaml
- type: LLMsTxt
  url: llms/prove-llms.txt
- type: ToolCrosswalk
  url: mcp/prove-tool-crosswalk.yml
- type: MCPServer
  url: mcp/prove-mcp.yml
- type: WellKnown
  url: well-known/prove-well-known.yml
- type: Hosts
  url: hosts/prove-hosts.yml
- type: Vendors
  url: vendors/prove-vendors.yml
- type: SDKs
  url: packages/prove-packages.yml
- type: Packages
  url: packages/prove-packages.yml
- type: Leadership
  url: https://www.prove.com/leadership
- type: CapabilityMap
  url: capabilities/prove-capability-edges.yml
  name: Prove Business Capability Map
- type: AgenticAccess
  url: agentic-access/prove-agentic-access.yml
- type: DomainSecurity
  url: security/prove-domain-security.yml
- type: Authentication
  url: authentication/prove-authentication.yml
- type: GitHubOrganization
  url: https://github.com/prove-identity
- type: LinkedIn
  url: https://www.linkedin.com/company/proveidentity
- type: Website
  url: https://www.prove.com
- type: Documentation
  url: https://developer.prove.com
- type: FinOps
  url: finops/prove-finops.yml
- url: https://www.prove.com/blog
  type: Blog
- type: DeveloperPortal
  url: https://developer.prove.com
- type: Support
  url: https://support.prove.com/s/
- type: TermsOfService
  url: https://www.prove.com/legal/prove-terms-of-service
- type: PrivacyPolicy
  url: https://www.prove.com/legal/overview
- type: Postman
  url: https://www.postman.com/prove-eng/prove-link-api-testing/collection/93r30p4/prove-api
- type: SignUp
  url: https://portal.prove.com/en/signup
apis:
- aid: prove:prove-auth-api
  name: Prove Auth API
  description: Phone-based authentication and device binding.
  humanURL: https://developer.prove.com/docs/prove-pre-fill-flow
  baseURL: https://platform.proveapis.com/v3
  tags:
  - Authentication
  tags_raw:
  - Auth
  properties:
  - type: OpenAPI
    url: openapi/prove-auth-api-openapi.yml
  - type: Documentation
    url: https://developer.prove.com/docs/prove-pre-fill-flow
  - type: APIReference
    url: https://developer.prove.com/reference/start-request
  - type: PostmanCollection
    url: collections/prove.postman_collection.json
  - type: OpenCollection
    url: collections/prove.opencollection.json
  - type: Documentation
    url: https://developer.prove.com/reference/unify-server
  - type: Documentation
    url: https://developer.prove.com/reference/prefill-identity-server
  - type: JSONSchema
    url: json-schema/prove-auth-start-request-schema.json
  - type: JSONSchema
    url: json-schema/prove-auth-response-schema.json
  - type: JSONSchema
    url: json-schema/prove-auth-continue-request-schema.json
  - type: JSONSchema
    url: json-schema/prove-device-revoke-request-schema.json
  - type: JSONSchema
    url: json-schema/prove-success-response-schema.json
- aid: prove:prove-authentication-api
  name: Prove Authentication API
  description: OAuth 2.0 token issuance.
  humanURL: https://developer.prove.com/docs/prove-pre-fill-flow
  baseURL: https://platform.proveapis.com/v3
  tags:
  - Authentication
  properties:
  - type: OpenAPI
    url: openapi/prove-authentication-api-openapi.yml
  - type: Documentation
    url: https://developer.prove.com/docs/prove-pre-fill-flow
  - type: APIReference
    url: https://developer.prove.com/reference/start-request
  - type: PostmanCollection
    url: collections/prove.postman_collection.json
  - type: OpenCollection
    url: collections/prove.opencollection.json
  - type: Documentation
    url: https://developer.prove.com/reference/unify-server
  - type: Documentation
    url: https://developer.prove.com/reference/prefill-identity-server
  - type: JSONSchema
    url: json-schema/prove-token-request-schema.json
  - type: JSONSchema
    url: json-schema/prove-token-response-schema.json
- aid: prove:prove-domain-api
  name: Prove Domain API
  description: Cross-domain linking of identity scopes.
  humanURL: https://developer.prove.com/docs/prove-pre-fill-flow
  baseURL: https://platform.proveapis.com/v3
  tags:
  - Domain
  properties:
  - type: OpenAPI
    url: openapi/prove-domain-api-openapi.yml
  - type: Documentation
    url: https://developer.prove.com/docs/prove-pre-fill-flow
  - type: APIReference
    url: https://developer.prove.com/reference/start-request
  - type: PostmanCollection
    url: collections/prove.postman_collection.json
  - type: OpenCollection
    url: collections/prove.opencollection.json
  - type: Documentation
    url: https://developer.prove.com/reference/unify-server
  - type: Documentation
    url: https://developer.prove.com/reference/prefill-identity-server
  - type: JSONSchema
    url: json-schema/prove-success-response-schema.json
- aid: prove:prove-identity-api
  name: Prove Identity API
  description: Persistent identity lifecycle management.
  humanURL: https://developer.prove.com/docs/prove-pre-fill-flow
  baseURL: https://platform.proveapis.com/v3
  tags:
  - Identity
  properties:
  - type: OpenAPI
    url: openapi/prove-identity-api-openapi.yml
  - type: Documentation
    url: https://developer.prove.com/docs/prove-pre-fill-flow
  - type: APIReference
    url: https://developer.prove.com/reference/start-request
  - type: PostmanCollection
    url: collections/prove.postman_collection.json
  - type: OpenCollection
    url: collections/prove.opencollection.json
  - type: Documentation
    url: https://developer.prove.com/reference/unify-server
  - type: Documentation
    url: https://developer.prove.com/reference/prefill-identity-server
  - type: JSONSchema
    url: json-schema/prove-enroll-identity-request-schema.json
  - type: JSONSchema
    url: json-schema/prove-identity-schema.json
  - type: JSONSchema
    url: json-schema/prove-identity-list-response-schema.json
  - type: JSONSchema
    url: json-schema/prove-success-response-schema.json
- aid: prove:prove-identity-verification-api
  name: Prove Identity Verification API
  description: Ordered Pre-Fill verification flow - start, validate, challenge, complete.
  humanURL: https://developer.prove.com/docs/prove-pre-fill-flow
  baseURL: https://platform.proveapis.com/v3
  tags:
  - Identity Verification
  properties:
  - type: OpenAPI
    url: openapi/prove-identity-verification-api-openapi.yml
  - type: Documentation
    url: https://developer.prove.com/docs/prove-pre-fill-flow
  - type: APIReference
    url: https://developer.prove.com/reference/start-request
  - type: PostmanCollection
    url: collections/prove.postman_collection.json
  - type: OpenCollection
    url: collections/prove.opencollection.json
  - type: Documentation
    url: https://developer.prove.com/reference/unify-server
  - type: Documentation
    url: https://developer.prove.com/reference/prefill-identity-server
  - type: JSONSchema
    url: json-schema/prove-v3-start-request-schema.json
  - type: JSONSchema
    url: json-schema/prove-v3-complete-response-schema.json
  - type: JSONSchema
    url: json-schema/prove-v3-start-response-schema.json
  - type: JSONSchema
    url: json-schema/prove-v3-challenge-request-schema.json
  - type: JSONSchema
    url: json-schema/prove-v3-complete-request-schema.json
  - type: JSONSchema
    url: json-schema/prove-v3-flow-response-schema.json
- aid: prove:prove-pre-fill-api
  name: Prove Pre-Fill API
  description: Identity discovery and verified attribute retrieval.
  humanURL: https://developer.prove.com/docs/prove-pre-fill-flow
  baseURL: https://platform.proveapis.com/v3
  tags:
  - Pre-Fill
  properties:
  - type: OpenAPI
    url: openapi/prove-pre-fill-api-openapi.yml
  - type: Documentation
    url: https://developer.prove.com/docs/prove-pre-fill-flow
  - type: APIReference
    url: https://developer.prove.com/reference/start-request
  - type: PostmanCollection
    url: collections/prove.postman_collection.json
  - type: OpenCollection
    url: collections/prove.opencollection.json
  - type: Documentation
    url: https://developer.prove.com/reference/unify-server
  - type: Documentation
    url: https://developer.prove.com/reference/prefill-identity-server
  - type: JSONSchema
    url: json-schema/prove-discover-response-schema.json
  - type: JSONSchema
    url: json-schema/prove-fetch-response-schema.json
- aid: prove:prove-trust-score-api
  name: Prove Trust Score API
  description: Unified Authentication possession and trust evaluation.
  humanURL: https://developer.prove.com/docs/prove-pre-fill-flow
  baseURL: https://platform.proveapis.com/v3
  tags:
  - Trust Score
  properties:
  - type: OpenAPI
    url: openapi/prove-trust-score-api-openapi.yml
  - type: Documentation
    url: https://developer.prove.com/docs/prove-pre-fill-flow
  - type: APIReference
    url: https://developer.prove.com/reference/start-request
  - type: PostmanCollection
    url: collections/prove.postman_collection.json
  - type: OpenCollection
    url: collections/prove.opencollection.json
  - type: Documentation
    url: https://developer.prove.com/reference/unify-server
  - type: Documentation
    url: https://developer.prove.com/reference/prefill-identity-server
  - type: JSONSchema
    url: json-schema/prove-v3-unify-request-schema.json
  - type: JSONSchema
    url: json-schema/prove-v3-unify-status-response-schema.json
  - type: JSONSchema
    url: json-schema/prove-v3-correlation-request-schema.json
  - type: JSONSchema
    url: json-schema/prove-v3-flow-response-schema.json
x-enrichment:
  date: '2026-10-08'
  status: enriched
  artifacts_added: 57
  pass: local-v5

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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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