🇺🇸Blockchain, Crypto & Web3 in United States
12 blockchain, crypto & web3 providers in United States, publishing 41 APIs.
12 providers
41 published APIs
99 indexed documents
Blockchain, Crypto & Web3 in United States — 12 providers on the APIs.io network sit in both cohorts, and between them they publish 41 indexed APIs.
9 of the 12 publish at least one machine-readable API; 3 publish nothing indexed at all. That split is the first thing worth reading here — a vertical can be well represented in a market and still have almost no programmable surface.
By Kin Score band: 3 strong, 3 minimal, 2 developing, 2 thin, and 2 emerging.
Leading by rating: Cash App, Datavant, Spreedly, Shift4, ACI Worldwide, Paymentus, and 6 more.
Country membership is exact-tag only. A provider lands in United States when one of its own top-level tags names the country — there is no headquarters signal on the country axis, unlike the region axis which reads tag, provider-name pattern, and stated HQ. So this cell is a floor, not a census, and it understates by construction — a blockchain, crypto & web3 company headquartered in United States that never tags itself is counted nowhere on this axis. The region cuts read the wider signal set and will generally hold more.
Providers (12)
| Provider | Description | APIs | Rating |
|---|---|---|---|
| Cash App | Cash App is a consumer mobile-first financial services platform operated by Block, Inc. (formerly Square, Inc.), a publicly traded company. Cash App is not itself a chartered ba... | 12 | strong |
| Datavant | Datavant is a United States health-data logistics company, formed from the 2021 merger of Datavant and Ciox Health, that connects and de-identifies healthcare data across a "net... | 2 | strong |
| Spreedly | Spreedly is a United States payments orchestration platform and PCI-compliant card vault that lets merchants and platforms securely tokenize payment methods once and then transa... | 1 | strong |
| Shift4 | Shift4 (NYSE: FOUR) is a US-based integrated payments and commerce technology company headquartered in Center Valley, Pennsylvania, and a Fortune 1000 business serving restauran... | 1 | developing |
| ACI Worldwide | ACI Worldwide (NASDAQ: ACIW) is a US-headquartered payment-software company that builds real-time payment, card, merchant/eCommerce, and bill-payment technology for banks, proce... | 5 | developing |
| Paymentus | Paymentus (NYSE: PAY) is a Addison, Texas-based cloud billing and payment technology company founded in 2004 that operates one of the largest electronic bill presentment and pay... | 2 | thin |
| HealthVerity | HealthVerity is a United States life-sciences data platform, headquartered in Philadelphia, Pennsylvania, that operates what it describes as the nation's largest real-world data... | 1 | thin |
| American Express | American Express is a globally integrated payments company and card network that offers charge and credit cards, merchant acquiring, corporate payments, travel, and Membership R... | 12 | emerging |
| BNY Mellon | BNY Mellon (legal parent The Bank of New York Mellon Corporation, rebranded to "BNY" in 2024) is a US money-center bank and the world's largest custodian, overseeing roughly $50... | 5 | emerging |
| BlockFi | BlockFi was a Jersey City, New Jersey crypto-financial-services company founded in 2017 by Zac Prince and Flori Marquez that offered retail and institutional clients interest-be... | 0 | minimal |
| Chipper Cash | Chipper Cash is a pan-African fintech (legal entities Critical Ideas, Inc. and Voyse Technologies US, Inc.) operating a mobile-first cross-border money transfer, digital payment... | 0 | minimal |
| Protego Trust Bank | Protego Trust Bank is a Seattle, Washington digital-asset trust bank built for institutional clients, offering crypto-asset custody, trading, lending/borrowing and issuer servic... | 0 | minimal |
Indexed API documents (99)
Two numbers, both real: these providers publish 41 APIs as their own documents, which the catalog indexes split one-per-resource into 99 documents.
Cash App Add Cash App Pay To Your Site API
Cash App
The Add Cash App Pay To Your Site API from Cash App — 0 operation(s) for add cash app pay to your site.
Cash App API Keys API
Cash App
The apiKeys API from Cash App — 2 operation(s) for apikeys.
Cash App Balances API
Cash App
The balances API from Cash App — 2 operation(s) for balances.
Cash App Billing Agreements (Deprecated) API
Cash App
The Billing Agreements (Deprecated) API from Cash App — 0 operation(s) for billing agreements (deprecated).
Cash App Brands API
Cash App
The brands API from Cash App — 2 operation(s) for brands.
Cash App Customer Request API
Cash App
The Customer Request API API from Cash App — 0 operation(s) for customer request api.
Cash App Customers API
Cash App
The customers API from Cash App — 5 operation(s) for customers.
Cash App App Default API
Cash App
The App Default API from Cash App — 39 operation(s) for app default.
Cash App Disputes API
Cash App
The disputes API from Cash App — 8 operation(s) for disputes.
Cash App Fee Plans API
Cash App
The feePlans API from Cash App — 2 operation(s) for feeplans.
Cash App Grants Afterpay API
Cash App
The Grants Afterpay API from Cash App — 0 operation(s) for grants afterpay.
Cash App Merchants API
Cash App
The merchants API from Cash App — 2 operation(s) for merchants.
Cash App Network API
Cash App
The Network API API from Cash App — 0 operation(s) for network api.
Cash App Payments API
Cash App
The payments API from Cash App — 6 operation(s) for payments.
Cash App Payouts API
Cash App
The payouts API from Cash App — 2 operation(s) for payouts.
Cash App Refunds API
Cash App
The refunds API from Cash App — 5 operation(s) for refunds.
Cash App Request Chains API
Cash App
The requestChains API from Cash App — 1 operation(s) for requestchains.
Cash App Requests API
Cash App
The requests API from Cash App — 2 operation(s) for requests.
Cash App Webhooks API
Cash App
The Webhooks API from Cash App — 3 operation(s) for webhooks.
Datavant Configuration API
Datavant
This is an object representing account settings and default order preferences associated with your account.
Datavant Documents API
Datavant
Interact with the various documents that are collected and/or generated by Datavant through the identified patient record retrieval proce...
Datavant Oauth2 API
Datavant
The Oauth2 API from Datavant — 1 operation(s) for oauth2.
Datavant Order Queries API
Datavant
An order query is a request for medical records for a specific patient, but the exact encounter criteria are unknown and/or are flexible....
Datavant Orders API
Datavant
An order is the parent container for incoming queries. An order contains one or more queries along with other identifying information (e....
Datavant Prematch API
Datavant
The Prematch API from Datavant — 4 operation(s) for prematch.
Datavant Projects API
Datavant
A project is an optional entity that allows you to group multiple orders together and apply consistent configuration to all nested orders.
Datavant Visits API
Datavant
A visit is a record of the actions performed by Datavant to obtain charts from a specific clinic within the specified date ranges for a s...
Spreedly Access Secrets API
Spreedly
The access_secrets API from Spreedly — 2 operation(s) for access_secrets.
Spreedly Authorize API
Spreedly
The authorize API from Spreedly — 1 operation(s) for authorize.
Spreedly Capture API
Spreedly
The capture API from Spreedly — 1 operation(s) for capture.
Spreedly Card Refresher API
Spreedly
The card_refresher API from Spreedly — 3 operation(s) for card_refresher.
Spreedly Certificates API
Spreedly
The certificates API from Spreedly — 3 operation(s) for certificates.
Spreedly Claim API
Spreedly
The claim API from Spreedly — 1 operation(s) for claim.
Spreedly Composer API
Spreedly
The composer API from Spreedly — 3 operation(s) for composer.
Spreedly Credit API
Spreedly
The credit API from Spreedly — 1 operation(s) for credit.
Spreedly Environments API
Spreedly
The environments API from Spreedly — 3 operation(s) for environments.
Spreedly Events API
Spreedly
The events API from Spreedly — 2 operation(s) for events.
Spreedly Gateways API
Spreedly
The gateways API from Spreedly — 6 operation(s) for gateways.
Spreedly General Credit API
Spreedly
The general_credit API from Spreedly — 1 operation(s) for general_credit.
Spreedly Merchant Profiles API
Spreedly
The merchant_profiles API from Spreedly — 2 operation(s) for merchant_profiles.
Spreedly Network Tokenization API
Spreedly
The network_tokenization API from Spreedly — 2 operation(s) for network_tokenization.
Spreedly Payment Methods API
Spreedly
The payment_methods API from Spreedly — 12 operation(s) for payment_methods.
Spreedly Payments API
Spreedly
The payments API from Spreedly — 1 operation(s) for payments.
Spreedly Protection Events API
Spreedly
The protection_events API from Spreedly — 2 operation(s) for protection_events.
Spreedly Protection Provider API
Spreedly
The protection_provider API from Spreedly — 2 operation(s) for protection_provider.
Spreedly Purchase API
Spreedly
The purchase API from Spreedly — 2 operation(s) for purchase.
Spreedly Receivers API
Spreedly
The receivers API from Spreedly — 6 operation(s) for receivers.
Spreedly Sca Authentication API
Spreedly
The sca_authentication API from Spreedly — 1 operation(s) for sca_authentication.
Spreedly Sca Provider API
Spreedly
The sca_provider API from Spreedly — 2 operation(s) for sca_provider.
Spreedly Sub Merchants API
Spreedly
The sub_merchants API from Spreedly — 2 operation(s) for sub_merchants.
Spreedly Transactions API
Spreedly
The transactions API from Spreedly — 5 operation(s) for transactions.
Spreedly Verify API
Spreedly
The verify API from Spreedly — 1 operation(s) for verify.
Spreedly Void API
Spreedly
The void API from Spreedly — 1 operation(s) for void.
Shift4 3D Secure API
Shift4
The 3D Secure API from Shift4 — 2 operation(s) for 3d secure.
Shift4 ACH API
Shift4
The ACH API from Shift4 — 5 operation(s) for ach.
Shift4 Batches API
Shift4
The Batches API from Shift4 — 1 operation(s) for batches.
Shift4 Cards API
Shift4
The Cards API from Shift4 — 2 operation(s) for cards.
Shift4 Checkout Sessions API
Shift4
The Checkout Sessions API from Shift4 — 2 operation(s) for checkout sessions.
Shift4 Credentials API
Shift4
The Credentials API from Shift4 — 1 operation(s) for credentials.
Shift4 DCC API
Shift4
The DCC API from Shift4 — 1 operation(s) for dcc.
Shift4 Devices API
Shift4
The Devices API from Shift4 — 13 operation(s) for devices.
Shift4 Gift Cards API
Shift4
The Gift Cards API from Shift4 — 9 operation(s) for gift cards.
Shift4 Merchants API
Shift4
The Merchants API from Shift4 — 1 operation(s) for merchants.
Shift4 Mode API
Shift4
The Mode API from Shift4 — 2 operation(s) for mode.
Shift4 OCT API
Shift4
The OCT API from Shift4 — 2 operation(s) for oct.
Shift4 Payment Links API
Shift4
The Payment Links API from Shift4 — 4 operation(s) for payment links.
Shift4 Pay Pal API
Shift4
The PayPal API from Shift4 — 3 operation(s) for paypal.
Shift4 QR Payments API
Shift4
The QR Payments API from Shift4 — 4 operation(s) for qr payments.
Shift4 Reports API
Shift4
The Reports API from Shift4 — 1 operation(s) for reports.
Shift4 Risk API
Shift4
The Risk API from Shift4 — 1 operation(s) for risk.
Shift4 Rule API
Shift4
The Rule API from Shift4 — 1 operation(s) for rule.
Shift4 Tokens API
Shift4
The Tokens API from Shift4 — 5 operation(s) for tokens.
Shift4 Transactions API
Shift4
The Transactions API from Shift4 — 8 operation(s) for transactions.
Shift4 Updater API
Shift4
The Updater API from Shift4 — 2 operation(s) for updater.
ACI Open Payment Platform — Server-to-Server API
ACI Worldwide
The core RESTful payment API of the ACI Open Payment Platform (PAY.ON gateway). Server-to-Server integration lets merchants and PSPs run ...
ACI COPYandPAY
ACI Worldwide
COPYandPAY is ACI's secure, PCI-friendly embedded payments widget for merchants and integrators. It renders a hosted card and alternative...
ACI BackOffice API
ACI Worldwide
BackOffice operations on the Open Payment Platform let integrators process and manage previously authorized transactions — captures, refu...
ACI Pay By Link API
ACI Worldwide
Pay By Link lets merchants create secure, customizable hosted payment link pages and collect payments without a full checkout integration...
ACI Mobile SDK
ACI Worldwide
The ACI Mobile SDK lets developers accept payments inside native mobile apps, wrapping the Open Payment Platform's card and alternative-p...
Paymentus XOTP API
Paymentus
The XOTP (Paymentus payment) API exposes core Service Commerce operations — make payment (Sale), account inquiry, payment history, void/c...
Paymentus Authentication API
Paymentus
The Authentication API issues short-lived JWT access tokens for the XOTP payment surface. A client signs a request with a pre-shared key ...
HealthVerity Identity API
HealthVerity
Gated, enterprise real-time de-identification API named on the HealthVerity Identity Manager product page. Under the "sync on demand" mod...
American Express Token Service (AETS) API
American Express
The American Express Token Service (AETS) API allows developers to securely tokenize cardholder data, providing a layer of security for o...
American Express Enhanced Authorization (EA)
American Express
American Express Enhanced Authorization (EA) is a fraud prevention tool that helps protect cardholders and merchants from unauthorized tr...
American Express Account and Transaction API
American Express
The American Express Account and Transaction API is an open-banking service that enables regulated third-party providers to access and re...
American Express Confirmation of Funds PSD2 API
American Express
The American Express Confirmation of Funds PSD2 API is a secure and efficient service that enables regulated card-based payment instrumen...
American Express @ Work B2B API
American Express
The American Express @ Work B2B API is a suite of services that allows businesses to securely access their American Express corporate acc...
American Express Card On-Demand
American Express
American Express Card On-Demand offers customers the convenience and flexibility of instantly receiving a digital card for their American...
American Express Pay with Points
American Express
American Express Pay with Points allows cardholders to use the points they have earned through their American Express Membership Rewards ...
American Express API-Based Payment Platform
American Express
The American Express API-based Payment Platform allows eCommerce sellers and merchants to scale their business by integrating with Open B...
American Express Payment Account Reference (PAR)
American Express
Payment Account Reference (PAR) provides an aggregated view of a Card Member's account activity across different payment formats. Develop...
American Express Smart Offer Partnership
American Express
The American Express Smart Offer Partnership product provides registered partners with access to certain American Express data required t...
American Express AMEX Account Connect
American Express
AMEX Account Connect is a suite of APIs that enables eligible American Express Card Members to add their Cards on file with participating...
American Express Network Loyalty Platform
American Express
The American Express Network Loyalty Platform (the R42 Platform) is a suite of real-time Application Programming Interfaces (APIs) offere...
BNY Treasury Services API
BNY Mellon
Treasury Services API family covering payments (USD clearing, global ACH, RTP, wires, Pay by Bank), liquidity, cash management, trade fin...
BNY Asset Servicing API
BNY Mellon
Asset Servicing API family for custody, fund accounting, middle-office, and transfer-agency operations, published through the BNY Develop...
BNY Markets API
BNY Mellon
Markets API family spanning FX, securities finance, fixed income, and equities, published through the BNY Developer Marketplace. API refe...
BNY Pershing API
BNY Mellon
Pershing API family for clearing, custody, and the NetX360+ / Wove wealth platforms serving broker-dealers and RIAs, published through th...
BNY Data On-Chain
BNY Mellon
Public, smart-contract-only product that broadcasts BNY-attested fund accounting data to public blockchains for on-chain and off-chain co...
Other industries in United States
Banking & Open Banking 85
Financial Services 81
Data & Analytics 72
Education & EdTech 47
Energy 29
Healthcare 29
Digital Health & Telehealth 27
Government & Public Sector 26
Insurance 21
Venture Capital & Investing 20
Climate & Sustainability 17
Cybersecurity & Identity 17
All of United States →
Blockchain, Crypto & Web3 elsewhere
North America 62
Europe 43
Latin America 21
United Kingdom & Ireland 18
Southeast Asia 16
Africa 14
Japan & Korea 13
India & South Asia 12
DACH (Germany · Austria · Switzerland) 10
Greater China 9
Middle East 8
France & Iberia 6
All of Blockchain, Crypto & Web3 →
This page is the intersection of two independently computed cohorts:
United States and
Blockchain, Crypto & Web3. A provider appears here only when it is
already a member of both. United States membership is matched on tag,
so this is a floor rather than a census — coverage gaps show up here as small numbers, not as absent pages.
Work with this as data
Every country here is available over the APIs.io API and to AI agents over MCP. Countries is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.