🇬🇧Blockchain, Crypto & Web3 in United Kingdom
15 blockchain, crypto & web3 providers in United Kingdom, publishing 18 APIs.
15 providers
18 published APIs
30 indexed documents
Blockchain, Crypto & Web3 in United Kingdom — 15 providers on the APIs.io network sit in both cohorts, and between them they publish 18 indexed APIs.
8 of the 15 publish at least one machine-readable API; 7 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: 5 developing, 4 emerging, 4 minimal, 1 exemplar, and 1 thin.
Leading by rating: AlgoVoi, Trust Payments, Ramp Network, Cardstream, Finage, BitFury, and 9 more.
Country membership reads a tag or a stated headquarters. A provider lands in United Kingdom when one of its own top-level tags names the country, or when its own description states a headquarters that names the country or one of its cities (roadmap#542, #719). A description that calls a company by its nationality, or names a city in a phrase that is not a headquarters statement, is not counted, so this cell is a floor, not a census.
Providers (15)
| Provider | Description | APIs | Rating |
|---|---|---|---|
| AlgoVoi | AlgoVoi (AlgoVoi Ltd, UK; founder Christopher Hopley) builds compliance-aware, offline-verifiable payment and evidence infrastructure for AI agents across twelve mainnet chains,... | 5 | exemplar |
| Trust Payments | Trust Payments is a London-headquartered payment gateway and processor (formerly Secure Trading / SecureTrading) operating across the United Kingdom, Europe, and the United Stat... | 2 | developing |
| Ramp Network | Ramp Network (Ramp Swaps Ltd) is a London-headquartered fiat-to-crypto on-ramp and off-ramp provider that lets wallets, dApps, exchanges and consumer apps embed crypto purchase,... | 2 | developing |
| Cardstream | Cardstream is an independent United Kingdom payment gateway providing a white-label payment platform that banks, PSPs, ISOs, acquirers and software companies resell under their ... | 4 | developing |
| Finage | Finage is a London-based real-time and historical market data provider covering US and global stocks, forex, cryptocurrencies, CFD indices, ETFs, bonds, and company fundamentals... | 1 | developing |
| BitFury | Bitfury Group is a blockchain technology company founded in 2011 as one of the earliest Bitcoin mining hardware makers and full-cycle infrastructure providers, and now operating... | 1 | developing |
| Thought Machine | Thought Machine is a London-headquartered cloud-native core banking technology company founded in 2014 by Paul Taylor, with offices in New York and Singapore. It builds Vault Co... | 2 | thin |
| Globacap | Globacap is a London-based private capital markets technology company, founded in 2017, that builds workflow-automation software-as-a-service for issuance, share register manage... | 0 | emerging |
| Tranched | Tranched is a London-based fintech building an embedded, on-chain securitisation platform that connects fintech lenders and loan originators directly to professional investors. ... | 0 | emerging |
| Eunice | Eunice is a London-based AI fintech building institutional-grade due diligence and monitoring infrastructure for digital assets and private markets. Its platform automates token... | 0 | emerging |
| Improbable | Improbable (Improbable Worlds Ltd) is a London-based technology company and venture builder. Founded in 2012, it originally built SpatialOS, a distributed simulation and network... | 0 | emerging |
| Calastone | Calastone operates the world's largest global funds network, connecting asset managers, distributors, custodians and platforms to automate and digitalize the investment funds ma... | 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 |
| EXMO | Cryptocurrencies exchange based in UK | 1 | minimal |
| Fnality International | Fnality International is a London-headquartered financial market infrastructure company that builds and operates distributed-ledger wholesale payment systems settling in tokenis... | 0 | minimal |
Indexed API documents (30)
Two numbers, both real: these providers publish 18 APIs as their own documents, which the catalog indexes split one-per-resource into 30 documents.
AlgoVoi Pay (Payable Core) API
AlgoVoi
Tenant-free, pay-per-call verification rail (OpenAPI 3.1.0 "AlgoVoi Payable Core" 1.0.0, 17 operations). No account and no API key: each ...
AlgoVoi Gateway API
AlgoVoi
The multi-tenant payment gateway (OpenAPI 3.1.0 "AlgoVoi Gateway" 1.0.0-phase1c, 115 operations, 99 schemas) at api.algovoi.co.uk: hosted...
AlgoVoi RFC 9421 Clinic (Verifiable-Comms Agent) API
AlgoVoi
Free, anonymous, verify-only service at agents.algovoi.co.uk (OpenAPI 3.1.0 "AlgoVoi Verifiable-Comms Agent" 0.1.0, 9 operations): verify...
AlgoVoi Agent Trust Bench API
AlgoVoi
Open, provider-neutral x402 research surface (OpenAPI 3.1.0 "AlgoVoi Agent Trust Bench" 0.1.0, 7 operations, servers[] https://agent-trus...
AlgoVoi Audit Verifier API
AlgoVoi
Stateless reference verifier for AlgoVoi selective-disclosure audit bundles at verify.algovoi.co.uk (OpenAPI 3.1.0 "AlgoVoi Audit Verifie...
AlgoVoi MCP Server
AlgoVoi
Model Context Protocol access to AlgoVoi three ways. A hosted anonymous Streamable HTTP endpoint at https://agents.algovoi.co.uk/mcp (alg...
Trust Payments Webservices API
Trust Payments
Server-to-server JSON API (the Secure Trading Payment Platform / STPP) for card processing and management on the TRU Connect gateway. Sup...
Trust Payments Payouts API
Trust Payments
Payout / disbursement capability exposed through the Webservices API, used to send funds out (for example refunds beyond original transac...
Ramp Network Host API
Ramp Network
Public REST API used alongside the Ramp Instant widget. Exposes available on-ramp assets and prices, off-ramp assets and prices, supporte...
Ramp Instant SDK and Widget
Ramp Network
Client-side integration surface for Ramp Network. The Ramp Instant SDK renders the Ramp widget in overlay, embedded, hosted, mobile or au...
Cardstream Gateway - Hosted Integration
Cardstream
Hosted Payment Pages (HPP) integration. The merchant's browser POSTs a URL-encoded request to the Gateway, which collects and processes t...
Cardstream Gateway - Direct Integration
Cardstream
Server-to-server integration. The merchant collects payment details on its own secure server and sends a URL-encoded HTTP POST directly t...
Cardstream Gateway - Batch Integration
Cardstream
An enhancement to the Direct Integration that submits multiple transactions in a single multipart/mixed HTTP POST. The Gateway queues the...
Cardstream Hosted Payment Fields
Cardstream
A client-side library where only the individual input fields that collect sensitive cardholder data are hosted by the Gateway while the r...
Finage WebSocket Market Data Stream
Finage
Real-time streaming trades and quotes for US stocks, global stocks, forex, crypto, CFD indices, and ETFs over per-customer WebSocket URLs...
Finage Bonds API
Finage
The Bonds API from Finage — 1 operation(s) for bonds.
Finage Canadian Stocks API
Finage
The Canadian Stocks API from Finage — 2 operation(s) for canadian stocks.
Finage Crypto API
Finage
The Crypto API from Finage — 6 operation(s) for crypto.
Finage Forex API
Finage
The Forex API from Finage — 6 operation(s) for forex.
Finage Fundamentals API
Finage
The Fundamentals API from Finage — 40 operation(s) for fundamentals.
Finage Indian Stocks API
Finage
The Indian Stocks API from Finage — 2 operation(s) for indian stocks.
Finage Indices API
Finage
The Indices API from Finage — 3 operation(s) for indices.
Finage Russian Stocks API
Finage
The Russian Stocks API from Finage — 2 operation(s) for russian stocks.
Finage UK Stocks API
Finage
The UK Stocks API from Finage — 2 operation(s) for uk stocks.
Finage US Stocks API
Finage
The US Stocks API from Finage — 5 operation(s) for us stocks.
Finage ET Fs API
Finage
The ETFs API from Finage — 3 operation(s) for etfs.
Exonum Node HTTP API
BitFury
The HTTP surface an Exonum node serves. The explorer service exposes REST endpoints under /api/explorer (blocks, block, transactions, cal...
Thought Machine Vault Core API
Thought Machine
Vault Core is Thought Machine's cloud-native core banking engine. Its API surface spans a REST Core API for external integrations (channe...
Thought Machine Vault Payments API
Thought Machine
Vault Payments is Thought Machine's cloud-native payments processing platform, able to run card, instant, batch clearing and cross-border...
EXMO
EXMO
Cryptocurrencies exchange based in UK
Other industries in United Kingdom
Artificial Intelligence 123
Financial Technology 111
Payments & Money Movement 107
Financial Services 97
Banking & Open Banking 91
Healthcare 49
Data & Analytics 47
Insurance 46
Digital Health & Telehealth 45
Real Estate 43
Education & EdTech 42
Climate & Sustainability 40
All of United Kingdom →
Blockchain, Crypto & Web3 elsewhere
North America 65
Europe 36
Latin America 19
United Kingdom & Ireland 15
Southeast Asia 11
India & South Asia 9
DACH (Germany · Austria · Switzerland) 8
Japan & Korea 8
France & Iberia 7
Greater China 7
Africa 6
Middle East 5
All of Blockchain, Crypto & Web3 →
This page is the intersection of two independently computed cohorts:
United Kingdom and
Blockchain, Crypto & Web3. A provider appears here only when it is
already a member of both. United Kingdom membership is matched on tag, stated HQ,
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.