United States × Blockchain, Crypto & Web3

🇺🇸Blockchain, Crypto & Web3 in United States

64 blockchain, crypto & web3 providers in United States, publishing 808 APIs.

64 providers 808 published APIs 809 indexed documents

Blockchain, Crypto & Web3 in United States — 64 providers on the APIs.io network sit in both cohorts, and between them they publish 808 indexed APIs.

36 of the 64 publish at least one machine-readable API; 28 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: 24 minimal, 11 emerging, 10 strong, 9 developing, 5 exemplar, and 5 thin.

Leading by rating: Uphold, Solidus Labs, Didit, Gemini Trust Company, Hive Civilization, SCVD General Store, and 58 more.

Country membership reads a tag, a stated headquarters or a stated nationality. A provider lands in United States when one of its own top-level tags names the country, when its own description states a headquarters that names the country or one of its cities, or when it describes itself by nationality (“a French company”; roadmap#542, #719). Region words (“Latin American”), language uses (“French-speaking”) and a city named outside a headquarters statement are not counted, so this cell is a floor, not a census.

Providers (64)

Provider	Description	APIs	Rating
Uphold	Uphold is a multi-asset digital money platform and regulated crypto exchange that lets consumers and businesses hold, trade, send and spend more than 300 cryptocurrencies, natio...	25	exemplar
Solidus Labs	Solidus Labs is a crypto-native market-integrity and compliance technology company founded in 2018 by former Goldman Sachs engineers, headquartered in New York with offices in T...	6	exemplar
Didit	Didit is a developer-first identity verification and fraud-prevention platform that exposes one unified API for KYC (ID verification, passive/active liveness, face match and sea...	27	exemplar
Gemini Trust Company	Gemini Trust Company, LLC is a United States cryptocurrency exchange and custodian, founded in 2014 and headquartered in New York, regulated as a New York State Department of Fi...	20	exemplar
Hive Civilization	Hive Civilization (DBAs The Hivery and The Hivery IQ; Walnut Creek, California; single-founder Wyoming corporation established 2026) sells signed, independently verifiable recei...	153	exemplar
SCVD General Store	Record Creative Co. LLC is the one-person Oak City, North Carolina company that operates scvd.store — "Sean-Claude Van Damme's General Store", an evidence observatory for agenti...	91	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...	26	strong
Kraken	Kraken is one of the world's largest and longest-running cryptocurrency exchanges, founded in 2011 and headquartered in San Francisco. Kraken offers Spot and Futures trading, st...	25	strong
ALTR	ALTR is a unified data security platform that discovers, classifies, masks, tokenizes and monitors sensitive data across Snowflake, Databricks and OLTP databases (PostgreSQL, My...	69	strong
Bolt Financial	Bolt Financial, Inc. is an American commerce technology company that gives retailers a one-click, identity-powered checkout backed by a shopper account network, payments process...	13	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...	8	strong
Massive (formerly Polygon.io)	Polygon (Polygon.io, rebranded as Massive in early 2026) provides real-time and historical market data APIs across US stocks, options, indices, forex, cryptocurrencies, and futu...	70	strong
Ripple Labs	Ripple (legally Ripple Labs Inc.) is a blockchain and crypto-enabled financial infrastructure company whose developer surface spans Ripple Payments (RippleNet Server API, On-Dem...	36	strong
NovoPayment	NovoPayment is a Miami-headquartered banking-as-a-service and embedded-finance platform serving banks, fintechs, retailers and payment companies across the Americas. Its develop...	47	strong
Coinme	Coinme is a Seattle-based regulated cryptocurrency company that offers Crypto-as-a-Service (CaaS): modular API infrastructure that lets platforms embed crypto without building i...	28	strong
Hive Agent IQ	Hive Agent IQ (hiveagentiq.com) is the agent-platform brand of Hive Civilization — a single-founder Wyoming company (Stephen Rotzin) whose sibling brand thehiveryiq.com is profi...	7	developing
AltoIRA	Alto (AltoIRA) is a Nashville-based self-directed IRA platform that lets everyday investors hold alternative assets — private equity, venture funds, startups, real estate, farml...	5	developing
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...	21	developing
LVL LTD CO	LVL LTD CO is a sole-operator product lab in Cleveland, Georgia (operator Joseph Lamar Taylor; trade name, LLC registration stated as pending) that runs lvlltd.com, an agent-nat...	27	developing
Supra	Supra is a vertically integrated Layer 1 blockchain developed by the Swiss-based Entropy Foundation, combining a MultiVM execution layer (MoveVM plus an EVM) with services that ...	13	developing
Tesser	Tesser is a New York-based stablecoin payments infrastructure company that lets licensed financial institutions, banks, fintechs, and payment service providers move money across...	14	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
Coin Metrics	Coin Metrics is a Boston-based crypto financial intelligence provider founded in 2017, selling institutional-grade cryptoasset network (on-chain) data, exchange market data (tra...	19	developing
Upland	Upland (Uplandme, Inc.) is a San Francisco-based Web3 metaverse company that maps virtual property onto real-world addresses, letting players buy, sell, trade and build on token...	17	developing
Bitnomial	Bitnomial is a Chicago-based derivatives exchange company that owns and operates U.S. CFTC-regulated subsidiaries — a Designated Contract Market (exchange/DCM), a Derivatives Cl...	2	thin
DEUSPROOF	DEUSPROOF is a free public register of AI agents and a forensic notary for what they make, operated by REDGROUND BLOCKCHAIN LLC (Florida, USA) at deusproof.com. Every agent the ...	3	thin
Bastion	Bastion is a full-stack, regulated stablecoin infrastructure platform for enterprises and financial institutions. Founded in 2023 and based in Campbell, California by former a16...	1	thin
River Financial	River Financial Inc. (river.com) is a regulated U.S.-based Bitcoin brokerage and bank for long-term investors, operating under NMLS ID #1906809. Customers can buy, sell, send, a...	1	thin
Sojo Industries	Sojo Industries is a national industrial-automation and supply-chain technology company founded in 2021 and headquartered in Bristol, Pennsylvania, serving the food and beverage...	5	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	emerging
Hamsa	Hamsa (formerly HamsaPay) is a San Francisco-based financial infrastructure company "powering the Finternet." It builds the Hamsa Unified Confidential Ledger (UCL), a privacy-en...	0	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
Andalusia Labs	Andalusia Labs is an applied research laboratory headquartered in Palo Alto building internet-native economic infrastructure. Its flagship platform, OpenGDP, is the "Global Base...	0	emerging
Chaoslabs	Chaos Labs is a New York-based company building financial-intelligence and economic-security infrastructure for onchain markets. Its flagship product, Edge (Chaos Oracles), is a...	0	emerging
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
Milo Credit	Milo (formerly Milo Credit) is a Miami-based financial technology company and licensed mortgage lender that pioneered crypto-backed lending. Milo lets cryptocurrency holders acc...	0	emerging
Baxus	BAXUS is a peer-to-peer marketplace for buying, selling, trading, and storing fine and rare wine and spirits, built on the Solana blockchain. Founded in 2021 by Tzvi Wiesel and ...	1	emerging
Blockskye	Blockskye is an enterprise travel management and payments platform for large corporate travel programs, founded in 2017 and headquartered in New York. It combines a consumer-gra...	1	emerging
The Block	The Block is a New York-based digital-assets research, analysis, and news brand founded in 2018, covering cryptocurrency, blockchain, and Web3 markets. Its subscription platform...	3	emerging
Blur	Blur is a New York-based NFT marketplace and aggregator built for professional traders on Ethereum, founded by the pseudonymous "Pacman" (Tieshun Roquerre) in October 2022 and b...	0	emerging
Digital Currency Group	Digital Currency Group (DCG) is a cryptocurrency and blockchain holding and venture company founded in 2015 by Barry Silbert and headquartered in Stamford, Connecticut. DCG buil...	0	minimal
Azra Games	Azra Games is a mobile role-playing game studio founded in 2022 by Mark Otero and headquartered in Sacramento, California. The studio builds RPGs on its proprietary "RPG GameKit...	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
Republic	Republic is a New York-based fintech and private investing platform (republic.com) that lets retail and accredited investors access early-stage startups, private companies, real...	0	minimal
Theta EdgeCloud	Theta EdgeCloud is a distributed, hybrid AI and video cloud built on the Theta Network blockchain, offering on-demand GPU compute for AI model training, fine-tuning, inference, ...	0	minimal
Stickies	Stickies (stickies.wtf) was a Los Angeles-based consumer web3 company, built by BYO Labs, that made "dumb stickers and GIFs starring your favorite NFTs" — users connected a cryp...	0	minimal
Reverie	Reverie is an early-stage venture capital firm based in New York that invests at the pre-seed and seed stages in crypto and web3 companies and protocols, describing its work as ...	0	minimal
Synquote	Synquote is a decentralized crypto options trading platform that lets traders obtain options quotes directly from market makers using a request-for-quote (RFQ) model. Founded in...	0	minimal
MakersPlace	MakersPlace is a curated marketplace for authentic digital creations, letting artists mint, sell, and collect verified digital artworks (NFTs) recorded on the blockchain. Founde...	0	minimal
Core Loop	Core Loop is a game studio founded in 2020 by Vincenzo Alagna and Dan Chao, veterans of Machine Zone, GREE, and Funzio, building a modern cross-platform MMO at the intersection ...	0	minimal
EV3	Escape Velocity (EV3) is an early-stage crypto and web3 venture capital firm based in New York, co-founded by Mahesh Ramakrishnan and Salvador Gala, that backs founders building...	0	minimal
Placeholder	Placeholder is a venture capital partnership based in New York City that invests in decentralized information networks — crypto protocols and Web3 infrastructure. It was added t...	0	minimal
VeriTX	VeriTX Corp. is a veteran-owned blockchain and cybersecurity firm based in East Aurora, New York that builds trusted, tamper-evident data and supply-chain infrastructure origina...	0	minimal
Merkle	Merkle Data is a risk-management and analytics platform for crypto institutions, founded in 2017 and headquartered in New York. The platform aggregates proprietary market data (...	0	minimal
nWay	nWay is a San Francisco-based multiplayer game developer and publisher founded in 2011, known for real-time synchronous PvP titles including Power Rangers: Legacy Wars (70M+ dow...	0	minimal
Dechert	Dechert LLP is a global law firm founded in 1875 and headquartered in Philadelphia, Pennsylvania, with "more than 900 lawyers" across 22 offices in the United States, Europe, th...	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
Battlebound	Battlebound was a Los Angeles-based blockchain / play-to-earn game studio founded in May 2021 by former Riot Games technical artist Adam Hensel (pseudonym Damos), with a team dr...	0	minimal
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
Clutch Wallet	Clutch Wallet was a Los Angeles-based web3 startup building a non-custodial "social wallet" and web3 toolkit — a seedless browser extension and mobile wallet (leaning on account...	0	minimal
Slingshot	Slingshot is a self-custody, multi-chain DeFi application and wallet founded in 2020 and headquartered in San Francisco, letting retail users search, send, receive, and swap ten...	0	minimal
Topl	Topl was an impact-technology company founded in 2017 out of Rice University and based in Houston, Texas, building a proof-of-stake blockchain that let organizations prove ethic...	1	minimal
Transparent Systems	Transparent Systems (Transparent Financial Systems) was a Seattle-based fintech startup advancing financial infrastructure through on-demand, 24/7 cryptographic settlement solut...	0	minimal
Unikrn	Unikrn was an esports betting and entertainment company founded in November 2014 by Rahul Sood and Karl Flores, headquartered in Seattle and backed by investors including Mark C...	0	minimal

Indexed API documents (809)

Two numbers, both real: these providers publish 808 APIs as their own documents, which the catalog indexes split one-per-resource into 809 documents. Showing the first 200.

🇺🇸Blockchain, Crypto & Web3 in United States

Providers (64)

Indexed API documents (809)

Uphold Public API (v0)

Uphold Documentation MCP Server

Uphold Accounts API

Uphold Assets API

Uphold Authentication API

Uphold Capabilities API

Uphold Countries API

Uphold External accounts API

Uphold Files API

Uphold General API

Uphold Ingestions API

Uphold KYB API

Uphold KYC API

Uphold KYC sharing API

Uphold Metadata API

Uphold Payment API

Uphold Portfolio API

Uphold Statements API

Uphold Sumsub API

Uphold Terms of service API

Uphold Transactions API

Uphold Travel rule API

Uphold Users API

Uphold Veriff API

Uphold Webhooks API

Solidus Labs Address API

Solidus Labs Corrections API

Solidus Labs Latest API

Solidus Labs Scams API

Solidus Labs Token API

Solidus Labs Webhooks API

Didit Billing API

Didit Businesses API

Didit Case Blueprints API

Didit Cases API

Didit Customization API

Didit Questionnaires API

Didit Regulatory Reports API

Didit Report Templates API

Didit Session API

Didit Sessions API

Didit Standalone APIs API

Didit System API

Didit Transactions API

Didit Travel Rule API

Didit Users API

Didit Webhook API

Didit Workflows API

Didit AML Ongoing Monitoring API

Didit Biometric Templates API

Didit Case Assignment API

Didit Case Management API

Didit Digital ID wallets API

Didit Draft API

Didit Fraud Check API

Didit History API

Didit Networks API

Didit Publish API

Gemini WebSocket API

Gemini MCP Server

Gemini Trust Company Account Administration API

Gemini Trust Company Clearing API

Gemini Trust Company Combos API

Gemini Trust Company Derivatives API

Gemini Trust Company Fund Management API

Gemini Trust Company Instant API

Gemini Trust Company Margin Trading API

Gemini Trust Company Market Data API

Gemini Trust Company Markets API

Gemini Trust Company OAuth API

Gemini Trust Company Orders API

Gemini Trust Company Positions API

Gemini Trust Company Rewards API

Gemini Trust Company Session API

Gemini Trust Company Staking API

Gemini Trust Company Terms API

Gemini Trust Company Trading API