AlgoVoi
AlgoVoi (AlgoVoi Ltd, UK; founder Christopher Hopley) builds compliance-aware, offline-verifiable payment and evidence infrastructure for AI agents across twelve mainnet chains, answering all four agent-payment protocols — x402, A2A, MPP and AP2 — from one settlement core. It runs two hosted doors: AlgoVoi Pay at pay.algovoi.co.uk, a tenant-free rail that charges 0.01 USDC per call with no account or API key (payment is the credential) and returns an Ed25519 receipt anyone can verify offline, and the multi-tenant Gateway at api.algovoi.co.uk (Bearer key + X-Tenant-Id, hosted checkout, recurring authorities, sanctions screening, hash-chained audit trail, Stripe-shaped signed webhooks). Around them sit an anonymous RFC 9421 signing clinic reachable over REST, A2A and a hosted MCP server, the Agent Trust Bench (187 adversarial x402 research profiles), an audit-bundle verifier, five OpenAPI 3.1 contracts, A2A agent cards on five hosts, a published Agent Skill, llms.txt on four hosts, did:web identities, and a large Apache-2.0 reference layer on npm and PyPI (RFC 9421 signer/verifier, JCS substrate, receipt formats, an MCP server). Self-hosted products (Payment Rails, Verifiable Compliance Suite, post-quantum Reseal and Evidence Auditor) sell on perpetual licences paid in USDC.
AlgoVoi publishes 38 API contracts indexed on the APIs.io network, including A2a API, Agent Auth API, AlgoVoi Audit Verifier API, and 35 more. Tagged areas include Payments, Agentic Commerce, x402, A2A, and MCP.
The AlgoVoi catalog on APIs.io includes 1 event-driven AsyncAPI specification.
AlgoVoi’s developer surface includes documentation, API reference, getting-started guide, support, pricing, signup flow, changelog, and 59 more developer resources.
What this lets a business do 2
Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →
What people ask AlgoVoi 38
The questions people put to an LLM, and the jobs they hand an agent, that AlgoVoi's APIs answer — each one linked to the operation that does it. Generated by API Evangelist
Showing 12 of 38 APIs with phrasing — see every API.
Kin Score
Standards implemented 1
Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.
APIs 38
Individual APIs this provider publishes, each with its own machine-readable definition.
AlgoVoi A2a API
The A2a API from AlgoVoi — 12 operation(s) for a2a.
AlgoVoi Agent Auth API
The agent-auth API from AlgoVoi — 2 operation(s) for agent-auth.
AlgoVoi AlgoVoi Audit Verifier API
The AlgoVoi Audit Verifier API from AlgoVoi — 1 operation(s) for algovoi audit verifier.
AlgoVoi AlgoVoi Verifiable Comms Agent API
The AlgoVoi Verifiable Comms Agent API from AlgoVoi — 1 operation(s) for algovoi verifiable comms agent.
AlgoVoi Ap2 API
The Ap2 API from AlgoVoi — 7 operation(s) for ap2.
AlgoVoi Atb License API
The atb-license API from AlgoVoi — 1 operation(s) for atb-license.
AlgoVoi Bazaar API
The bazaar API from AlgoVoi — 1 operation(s) for bazaar.
AlgoVoi Checkout API
The checkout API from AlgoVoi — 17 operation(s) for checkout.
AlgoVoi Compliance API
The compliance API from AlgoVoi — 5 operation(s) for compliance.
AlgoVoi Customers API
The Customers API from AlgoVoi — 1 operation(s) for customers.
AlgoVoi Discovery API
Resource discovery and manifest endpoints
AlgoVoi Health API
The Health API from AlgoVoi — 1 operation(s) for health.
AlgoVoi Mandate API
The mandate API from AlgoVoi — 1 operation(s) for mandate.
AlgoVoi Mandate Portal API
The mandate-portal API from AlgoVoi — 3 operation(s) for mandate-portal.
AlgoVoi Mesh Federation API
The mesh-federation API from AlgoVoi — 2 operation(s) for mesh-federation.
AlgoVoi Meta API
Service metadata and health
AlgoVoi Mpp API
The mpp API from AlgoVoi — 6 operation(s) for mpp.
AlgoVoi Payable A2a API
The payable-a2a API from AlgoVoi — 1 operation(s) for payable-a2a.
AlgoVoi Payable API
The payable API from AlgoVoi — 6 operation(s) for payable.
AlgoVoi Payable Identity API
The payable-identity API from AlgoVoi — 1 operation(s) for payable-identity.
AlgoVoi Payment Links API
The Payment Links API from AlgoVoi — 1 operation(s) for payment links.
AlgoVoi Payouts API
The Payouts API from AlgoVoi — 1 operation(s) for payouts.
AlgoVoi Profiles API
Payable and free bench profiles
AlgoVoi Public API
The public API from AlgoVoi — 1 operation(s) for public.
AlgoVoi Public Resource API
The public-resource API from AlgoVoi — 1 operation(s) for public-resource.
AlgoVoi Recurr API
The recurr API from AlgoVoi — 6 operation(s) for recurr.
AlgoVoi Recurr Public API
The recurr-public API from AlgoVoi — 2 operation(s) for recurr-public.
AlgoVoi Recurring API
The recurring API from AlgoVoi — 7 operation(s) for recurring.
AlgoVoi Recurring Contracts API
The recurring-contracts API from AlgoVoi — 1 operation(s) for recurring-contracts.
AlgoVoi Recurring Hosted Auth API
The recurring-hosted-auth API from AlgoVoi — 2 operation(s) for recurring-hosted-auth.
AlgoVoi Resources API
The resources API from AlgoVoi — 1 operation(s) for resources.
AlgoVoi Signup API
The signup API from AlgoVoi — 2 operation(s) for signup.
AlgoVoi Subscriptions API
The Subscriptions API from AlgoVoi — 6 operation(s) for subscriptions.
AlgoVoi Suite Store API
The suite-store API from AlgoVoi — 4 operation(s) for suite-store.
AlgoVoi Verify API
The Verify API from AlgoVoi — 6 operation(s) for verify.
AlgoVoi .well Known API
The .well Known API from AlgoVoi — 2 operation(s) for .well known.
AlgoVoi X402 API
The x402 API from AlgoVoi — 2 operation(s) for x402.
AlgoVoi X402 Protected API
The x402-protected API from AlgoVoi — 1 operation(s) for x402-protected.
Scroll for all 38
MCP Servers 2
Model Context Protocol servers that expose these APIs to AI agents.
AlgoVoi MCP Server
MCP SERVERAlgoVoi MCP Server
MCP SERVERPricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Algovoi Co Uk Rate Limits
RATE LIMITSEvent Specifications 1
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Algovoi Co Uk Webhooks
ASYNCAPIOpenAPI Overlays 43
Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.
Algovoi Co Uk A2A Api Phrasing Overlay
GENERATEDAlgovoi Co Uk Agent Trust Bench Overlay
UNRECORDEDAlgovoi Co Uk Ap2 Api Phrasing Overlay
GENERATEDAlgovoi Co Uk Audit Verifier Overlay
UNRECORDEDAlgovoi Co Uk Clinic Overlay
UNRECORDEDAlgovoi Co Uk Gateway Overlay
UNRECORDEDAlgovoi Co Uk Meta Api Phrasing Overlay
GENERATEDAlgovoi Co Uk Mpp Api Phrasing Overlay
GENERATEDAlgovoi Co Uk Pay Overlay
UNRECORDEDAlgovoi Co Uk X402 Api Phrasing Overlay
GENERATEDScroll for all 43
Security Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Algovoi Co Uk Authentication
http-bearer/apiKey(header)/payment-as-auth(x402)/payment-as-auth(mpp)/hmac-webhook-signature/session-token/none · 9 schemes
SECURITYAgentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 5
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 15
MCP servers, agent skills, and machine-readable catalogs
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Design & Contract 8
Pagination, idempotency, versioning, errors, and events
Scroll for all 8
Build 5
SDKs, sample code, and the tooling you integrate with
Access & Security 8
Authentication, authorization, and security posture
Scroll for all 8
Operate 5
Status, limits, changes, and where to get help
Commercial 5
Pricing, plans, and the legal terms of use
Company 1
The organization behind the API
Other 12
Properties that don't map to a standard resource type
Scroll for all 12
Source (apis.yml)
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.