established · 0.0 market domain

Verification

Score 25.5 / 100 42 providers +94 via APIs 114 APIs Search apis.io →
Variants seen in the corpus: VerificationsVerification

Providers using this tag (42)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Exemplar 3 Complete, well-documented, and agent-ready
MessagebirdCommunicationsMessagingSMSEmail12 APIs92.1SvixWebhookWebhooks As A ServiceWebhook DeliveryWebhook Sending1 API80.4TwilioAuthenticationCommunicationsContact CenterEmail40 APIs73.5
Strong 5 Solid coverage with minor gaps
Aervik LabsInsuranceComplianceInsurtech1 API57.7SinchCommunicationsMessagingSMSVoice10 APIs57.2TelstraTelecommunicationsTelcoMobileMessaging2 APIs55.1TrueworkIncome VerificationEmployment VerificationVOIE3 APIs55.1DoximityCompanyHealth TechIdentityAuthentication1 API54.6
Developing 6 Usable, with meaningful gaps to close
GoodstackCompanyNon-ProfitDonationsCharitable Giving1 API51.8VonageCommunicationsMessagingTelecommunicationsVideo Conferencing1 API51.0State Farm Insurance CompaniesInsuranceAPI GatewayB2BMortgage1 API43.9TelesignAuthenticationCommunicationsFraud PreventionPhone Intelligence4 APIs43.1OnfidoAuthenticationIdentity1 API42.8CosignApache 2.0AttestationCLICode Signing3 APIs39.8
Thin 15 Limited public surface area
CharityAPI501c3CharitiesDonationsEIN1 API38.1AccuraCiteCitationsResearchBibliographyAcademic1 API37.7NumLookupAPINumber VerificationPhone ValidationPhone Number LookupCarrier Lookup1 API37.4AccredibleDigital CredentialsCertificatesBadgesOpen Badges1 API37.3MessenteCPaaSMessagingSMSViber1 API36.8Abstract API Phone ValidationNumber VerificationPhone ValidationPhone NumbersPhone Number Lookup1 API35.8Notary ProjectCloud-NativeContainer SecurityImage SigningIncubating4 APIs35.4CollectorsCompanyMarketplaceCollectiblesAuthentication1 API35.1ProofDrawRandomnessProvably FairdrandVerifiable Randomness2 APIs34.8RainbowCompanyCarbon CreditsCarbon RemovalCarbon Markets34.3TermiiMessagingSMSOTPWhatsApp1 API34.0OpkitHealthcareInsuranceEligibilityBenefits1 API30.4InteracFinancial-ServicesPaymentsCanadaInterac1 API29.1In-TotoCloud-NativeGraduatedSecuritySoftware Integrity4 APIs28.6The Update Framework (TUF)CNCFCloud-NativeGraduatedSecurity7 APIs28.0
Emerging 6 Early or largely undocumented
TLA Plus FoundationFormal MethodsLinux FoundationSpecification6 APIs20.8TartanHQCompanyIdentityKYC20.1InstanceCompanyRoboticsMachine-Learning1 API19.3ChipAgentsCompanyAi MlSemiconductorsChip Design14.2KlippaArtificial IntelligenceDocument AIIDPOCR3 APIs13.4AuthyCompanyAuthenticationTwo-Factor Authentication2FA11.0
Minimal 7 Almost no public developer surface
ChipstackCompanyArtificial IntelligenceSemiconductorsChip Design10.6AlterestCompanyFintechAsset-Based FinancePrivate Credit9.1BlueLayerCompanyCarbon CreditsClimateSustainability8.9TransCryptsCompanyCryptoBlockchainIdentity7.9Pramaana LabsCompanyArtificial IntelligenceFormal Methods7.6VaasCompanyFintechPrivate CreditDebt Infrastructure7.1SustainCERTCompanyClimateCarbon Markets6.3

APIs with this tag (114)

Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 7 Complete, well-documented, and agent-ready
Bird APIThe current Bird platform API: one REST API for email, SMS, WhatsApp, verification, lookup and Realtime, pl...92.1Stripe Identity APIUse Stripe Identity to confirm the identity of global users to prevent fraud, streamline risk operations, a...80.0LinkedIn Consumer APIThe LinkedIn Consumer Solutions Platform enables sites and applications the power to enhance their sign-in ...73.8Twilio Verifications APISend and manage verification codes73.5token-io Verification APIThe Verification API from token-io — 1 operation(s) for verification.73.3Paystack Verification APIThe Verification API from Paystack — 7 operation(s) for verification.70.9Finix Verifications API{'$ref': 'api-descriptions/tags/verifications.md'}66.8
Strong 23 Solid coverage with minor gaps
Sift Verification APISend, resend, and check verification challenges.66.4Cloudflare Verification APIVerify Turnstile challenge tokens on the server side.66.3Kita Verification APICross-document verification checks.64.8Unified.to verification APIThe verification API from Unified.to — 4 operation(s) for verification.63.8KPN PIM ID APIKPN PiM ID generates tamper-proof, company-specific encrypted QR codes from validated customer data (POST /...62.7Finix Payments Verifications API{'$ref': 'api-descriptions/tags/verifications.md'}62.2JFrog Verification APIVerify evidence and retrieve verification status60.7Fenergo Verification APIThe Verification API from Fenergo — 12 operation(s) for verification.60.0Mastercard Verifications APIThe Verifications API from Mastercard — 9 operation(s) for verifications.58.2Fintecture Customers APIRegister and manage merchant customers, attach their bank accounts, and run identity verifications. Persist...57.2Fintecture Verification APIAIS-based identity verification57.2Fintecture Verifications APICustomer identity verifications57.2Sinch Verifications APIStart, report, and query the status of phone number verifications using SMS, flashcall, phone call, or data...57.2Kickbox Verification APIReal-time email verification.56.8Moniepoint Verification APIIdentity, BVN, NIN, and account verification.56.8Trulioo Verifications APINormalized KYC / electronic identity verification API. Submit a Verify request with normalized PersonInfo, ...56.7Email Verifier API Verification APIReal-time email-address verification operations.56.5Sorsa Verification APIVerify follow, comment, retweet, quote and community-membership relationships56.3Descope Verification APIThe Verification API from Descope — 1 operation(s) for verification.56.2MetaMap Verifications APIThe Verifications API from MetaMap — 7 operation(s) for verifications.56.2Unifonic Verifications APIThe Verifications API from Unifonic — 2 operation(s) for verifications.55.3Telstra Verification APIMobile number verification operations.55.1Griffin Verifications APIThe Verifications API from Griffin — 4 operation(s) for verifications.54.3
Developing 40 Usable, with meaningful gaps to close
University of California, Santa Barbara Verifications APIThe Verifications API from University of California, Santa Barbara — 2 operation(s) for verifications.53.6Accredify Verification APIThe Verification API from Accredify — 1 operation(s) for verification.53.4TraceLink Smart Event Manager REST APISynchronous JSON/REST API that acts as an event ledger for serial number observations across pharmacy, ware...52.1TabaPay Verification APIThis resource represents a Client's Verification.52.0Fyno Verify APIOTP and TOTP-based verification API for authenticating users via SMS, email, or authenticator apps. Bundled...51.9Argyle Verifications APIThe Verifications API from Argyle — 4 operation(s) for verifications.51.6dLocal Verification APIIdentity verification and document management API supporting verification creation and retrieval, document ...51.2dLocal Verifications APIIdentity verification requests51.2Transmit Security Verification APIThe Verification API from Transmit Security — 6 operation(s) for verification.50.7Trusona Verifications APIThe Verifications API from Trusona — 2 operation(s) for verifications.50.7Verisoul Verification APIThe Verification API from Verisoul — 3 operation(s) for verification.50.7Google Play Integrity APIVerify that interactions and server requests come from genuine apps on genuine Android devices.49.8Finicity Verification of Assets (VoA) APIGenerates a consumer-permissioned Verification of Assets report from aggregated account and balance data fo...49.7Finicity Verification of Income & Employment (VoIE) APIDerives income streams and employment signals from permissioned transaction and payroll data to produce Ver...49.7Kodex Verification APIReal-time verification of law enforcement requesters. Pass a requester email address to the lookup endpoint...49.4npm Provenancenpm Provenance provides supply chain security for JavaScript packages by establishing a verifiable link bet...49.3Seshat Markets Verification APIThe Verification API from Seshat Markets — 3 operation(s) for verification.49.0Refinitiv Verification APIIdentity and document verification submission and transaction record retrieval.47.7Hopae, Inc. Verifications APIIdentity verification sessions46.9Chrome Verified Access APIAPI to cryptographically verify that ChromeOS clients are genuine and conform to corporate policy.46.2Worldpay Verifications APIThe Verifications API from Worldpay — 3 operation(s) for verifications.45.9B2B Insurance Inquiry APIThe State Farm B2B Insurance Inquiry API is designed for lenders, mortgage servicers, and financial institu...45.5LianLian Global Verifications APIThe Verifications API from LianLian Global — 2 operation(s) for verifications.45.1AgeChecker.Net Verification APIThe Verification API from AgeChecker.Net — 1 operation(s) for verification.44.8B2B Lender Services APIThe State Farm B2B Lender Services API provides mortgage lenders and auto lenders with programmatic access ...43.9Persona Verifications APIRetrieve and manage individual verification checks within an inquiry.43.3Shufti Pro Verification APIThe Verification API from Shufti Pro — 1 operation(s) for verification.43.1Telesign Verification APICreate, retrieve, and update verification processes43.1Neynar Verifications APIOperations related to verifications.42.6Verituity Verification APIVerification-as-a-Service. A single POST /v1/verifications call declares which verification modules to run ...42.6Nhost verification APIEmail and ticket verification operations for confirming user actions42.1Plivo Toll-Free Verification APIThe Plivo Toll-Free Verification API submits and tracks toll-free messaging verification cases required for...41.9Plivo Verified Caller ID APIThe Plivo Verified Caller ID API allows trial accounts to verify outbound caller IDs for use as the From nu...41.9reCAPTCHA Site Verify APIThe reCAPTCHA Site Verify API is the standard verification endpoint for reCAPTCHA v2 and v3 tokens. After a...41.1Equipmentwatch Verification APIThe Verification API from Equipmentwatch — 1 operation(s) for verification.40.8Routescan Etherscan-Compatible Contract APIAccess verified smart contract ABIs, source code, and creation transaction data. Supports contract source c...40.6VA Letter Generator APIAllows Veterans and authorized third parties to generate official VA letters confirming veteran status, ser...40.2Veteran Verification APIAllows authorized third parties to verify a Veteran's service history, Veteran status, discharge informatio...40.2Fiserv Verifications APIVerify payment cards or tokens before processing a transaction.39.8Wise verification APIIn certain situations, additional evidence is required to verify customers and ensure we’re compliant with ...39.4
Thin 38 Limited public surface area
Account Validation APIAssists clients in determining the validity of an account number's format and indicates the likelihood of a...39.1Accurate Background Verifications APIEmployment and education verification attempts.38.7Nookal Verification APIVerify that an API key is valid and connected to a Nookal account.38.5Checkr Verifications APIEducation and employment verification screenings.37.8AccuraCite APISynchronous REST API for citation verification and claim-to-source lookup. Two operations, both POST and bo...37.7CyberSource Verification APIThe Verification API from CyberSource — 2 operation(s) for verification.37.1Logto Verifications APIEndpoints for creating and validating verification records, which can be used in Profile routes.36.9nCino Verifications APIEndpoints pertaining to >s36.9Sift Verification APIOne-time passcode (OTP) step-up verification.36.9Polygon ID Verifier SDKThe Verifier SDK enables web2 and web3 applications to authenticate users based on verifiable credentials w...36.8Knotch Verification PixelPublisher traffic verification tag, a component of Knotch Blueprint. A single script element carrying a dat...36.4Capy Inc. Verification APIServer-side CAPTCHA answer verification.36.1Prelude Verification APICreate and check one-time passcode (OTP) verifications.35.6Notary Project Signing SpecificationThe Notary Project specification defines the signature envelope format, trust store and trust policy for co...35.4Notation CLINotation is the command-line tool that implements the Notary Project specifications for signing and verifyi...35.4Pact Verifications APIThe Verifications API from Pact — 1 operation(s) for verifications.35.0Okra Verification APINigerian KYC checks (BVN, NUBAN, TIN, RC).34.9ProofDraw Verification APIPublic, unauthenticated artifacts used to verify a draw.34.8Riskified OTP APIInitiate a one-time password challenge as a step-up verification mechanism for high-risk login, password re...34.7Cloudflare Turnstile Verification APIThe Verification API from Cloudflare Turnstile — 1 operation(s) for verification.34.6Decentro Verification APIThe Verification API from Decentro — 1 operation(s) for verification.34.0Candid Charity Check APIReal-time nonprofit verification and compliance screening used for due diligence, donation compliance, and ...33.3Mailgun Email Validation APIREST API for verifying email addresses in real time, bulk list validation, and deliverability scoring to re...33.0Guru REST APIREST API for managing cards, collections, boards, board sections, folders, users, groups, tags, webhooks, a...32.2Yodlee Verification APIVerification API32.1Farcaster Verifications APIThe Verifications API from Farcaster — 1 operation(s) for verifications.31.8Envestnet Verification APIVerification API31.6BMO Account Validation APIValidates third-party accounts before a transaction is created, reducing failed or misdirected payments. Se...31.0Live Identity APIIdentity verification suite including Live Identity Captcha and Live Identity Verify for confirming a real,...30.8Number Verification APIVerifies phone numbers in real time against the operator network for identity confirmation, fraud preventio...30.8World ID Verify APIServer-side verification endpoint that checks a World ID proof against the action and signal the client use...30.3BizVerify Verification APIThe Verification API from BizVerify — 2 operation(s) for verification.29.4Airstack Verifications APIThe Verifications API from Airstack — 1 operation(s) for verifications.29.1Glean verification APIThe verification API from Glean — 3 operation(s) for verification.29.1Interac Hub Verification APIThe Interac Hub is an HTTP API that simplifies digital identity verification. Relying parties obtain verifi...29.1TransUnion Verification APIUsed to verify one or more PASSporT JSON Web Tokens (or Identity headers). Also, referred to as the STI Ver...28.0TUF Repository SpecificationThe TUF specification defines the structure of update repositories including the root, targets, snapshot, a...28.0CoreLogic Australia Owner Verification APIProperty owner verification services. Named and hosted in the environment-details guide and excluded from t...27.6
Emerging 4 Early or largely undocumented
Open Zwitch Verification APIIdentity and account-validation suite used during merchant onboarding, KYB, and pre-payout checks. Endpoint...25.6RBC Validation APIPartner-gated Business Banking informational API for validating account or payment details prior to initiat...20.5Active SubscriberConfirms whether an MSISDN is currently an active Vodafone subscriber. Available in UK.13.8Klippa DocHorizon (Doxis AI.dp) APIFlagship REST API for end-to-end document AI — OCR, classification, extraction, conversion (JSON/XML/PDF/CS...13.4
Minimal 2 Almost no public developer surface
Phreesia Insurance Eligibility Verification APIReal-time insurance eligibility and benefits verification at or before check-in, returning coverage, copay,...9.2Clearwave Eligibility APIMulti-factor insurance eligibility and benefits verification run automatically as part of check-in, returni...6.7

Companies reaching this through an API (94)

These companies publish an API, specification or operation carrying “Verification” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

Accredify Accurate Background AgeChecker.Net Airstack Android Argyle BizVerify BMO Financial Group Candid Capy Inc. Checkr Clearwave Cloudflare Cloudflare Turnstile CoreLogic Australia CyberSource Decentro Descope dLocal Email Verifier API Envestnet Equipmentwatch Farcaster Fenergo Finicity Finix Finix Payments Fintecture Fiserv Fyno Glean Google Chrome Google reCAPTCHA Griffin Guru Hopae, Inc. JFrog Kickbox Kita Knotch Kodex KPN LianLian Global LinkedIn Logto Mailgun Mastercard MetaMap Moniepoint nCino
Show all 94 companies ↓
Neynar Nhost Nookal npm Okra Open (open.money) Orange Pact Paystack Persona Phreesia Plivo Polygon ID Prelude Refinitiv Riskified Routescan (Snowtrace) Royal Bank of Canada Scotiabank Seshat Markets Shufti Pro Sift Sift Sorsa State Farm Stripe TabaPay Token.io TraceLink Transmit Security TransUnion Trulioo Trusona Unified.to Unifonic University of California, Santa Barbara Verisoul Verituity Veterans Affairs Vodafone Wise World (Worldcoin) Worldpay Yodlee

Score breakdown

Frequency
64.3
log-scaled weighted occurrences
Breadth
1.2
spread across providers
Quality lift
39.6
mean composite of providers using it
Cohesion
8.0
strength of nearest seed neighbor

Related tags

KYC 21 co-occurrences Fraud Prevention 17 co-occurrences Identity Verification 16 co-occurrences Identity 34 co-occurrences Payouts 13 co-occurrences SMS 15 co-occurrences Verify 7 co-occurrences OTP 7 co-occurrences

Where this tag comes from

Provider tag42
Api tag114
Openapi tag64
Openapi op tag185

Cohort brief

Auto-generated

The 42 providers in the APIs.io catalog tagged Verification, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
42
all scored
Mean Kin Score
34.9
+10.9 vs catalog 24
Mean Agent Readiness
18.5
+6.1 vs catalog 12.4
Spread
6.3–92.1
median 35.3 · σ 20.2
How the 42 split by band
Exemplar 3Strong 5Developing 6Thin 15Emerging 6Minimal 7
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Contract Quality 35.3 20.1 +15.2 42
Operational Transparency 25.1 14 +11.1 42
Access Clarity 35.5 26.5 +9 42
Developer Ergonomics 32.1 23.4 +8.7 42
Discoverability 66.2 61 +5.2 42
Contract Governance 10.5 6.5 +4 42

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes
ArtifactThis cohortCatalogDifference
MCP server (any) 12% 10% +2
MCP server (first-party) 10% 13% -3
Agent Skills 0% 0% 0
OAuth scopes 14% 11% +3
Security 100% 96% +4
Arazzo workflows 5% 2% +3
Governance rules 31% 13% +18

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score
  1. 1 Messagebird 92.1
  2. 2 Svix 80.4
  3. 3 Twilio 73.5
  4. 4 Aervik Labs 57.7
  5. 5 Sinch 57.2
  6. 6 Telstra 55.1
  7. 7 Truework 55.1
  8. 8 Doximity 54.6
  9. 9 Goodstack 51.8
  10. 10 Vonage 51
Top by Agent Readiness
  1. 1 Messagebird 68.9
  2. 2 CharityAPI 51.7
  3. 3 Svix 49.4
  4. 4 Goodstack 41.5
  5. 5 Twilio 40.2
  6. 6 Abstract API Phone Validation 35.4
  7. 7 Doximity 34.7
  8. 8 ProofDraw 33.2
  9. 9 Truework 32.8
  10. 10 Sinch 29.1
All 42 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 20 September 2026, across 27620 providers, using the same computation served by the APIs.io cohort API. Briefs are published for rosters of 5 or more scored providers; below that a distribution is not meaningful.

Work with this as data

Every tag 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 tags

7 MCP tools reach this
  • find_tagsBrowse and filter every tag in the catalog.
  • get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
  • cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
  • cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
  • 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 tag 
curl "https://apis.io/api/v1/tags/verification"
All tags 
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/verification"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/verification/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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