Agentcard
Agentcard is a Y Combinator (Summer 2026) startup building card-issuing payments infrastructure for AI agents. It issues virtual Visa cards that are funded with a fixed USD amount and close after their first charge, giving agents scoped, single-use spending power with hard budget limits and no overdraft risk. Access is available three ways over one host: a REST v2 API, a hosted Model Context Protocol (MCP) server, and first-party CLIs. There are two products: Personal (an individual gives their own agent a card, funded via Apple Pay / Google Pay) and Companies ("Connect with Agentcard" — a platform issues cards to many users through OAuth 2.1 + PKCE). The platform covers user connect, identity verification (KYC), wallet funding, withdrawals, virtual card creation, transactions, and merchant shopping (buy) with HMAC-signed webhooks and a sandbox mode split from live by credential.
Agentcard publishes 5 APIs on the APIs.io network, including Authentication API, Connect API, Identity verification API, and 2 more. Tagged areas include Company, Payments, Virtual Cards, Card Issuing, and AI Agents.
The Agentcard catalog on APIs.io includes 2 event-driven AsyncAPI specifications.
Agentcard’s developer surface includes documentation, API reference, getting-started guide, quickstart, support, engineering blog, pricing, and 32 more developer resources.
Kin Score
APIs 5
Individual APIs this provider publishes, each with its own machine-readable definition.
Agentcard Authentication API
Exchange your client credentials for a platform access token, and introspect what a token acts as.
Agentcard Connect API
Connect a user to your platform: send a one-time code, verify it, record consent, and keep the connection alive.
Agentcard Identity verification API
Verify a connected user's identity: upload their ID, submit any extra fields we ask for, then show a short face scan.
Agentcard Wallet funding API
Fund a connected user's wallet from your own UI — request a payment link, relay the phone verification code, and poll until the funds land.
Agentcard Withdrawals API
Move money out of a connected user's wallet — to a saved bank account or a crypto address on Base. Transfers are processed manually by the Agentcard team, usually within 1-3 bus...
Open Collections 6
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONAgentcard Authentication API
OPEN COLLECTIONAgentcard Authentication Connect API
OPEN COLLECTIONAgentcard Authentication Identity verification API
OPEN COLLECTIONAgentcard Authentication Wallet funding API
OPEN COLLECTIONAgentcard Authentication Withdrawals API
OPEN COLLECTIONArazzo Workflows 2
Multi-step API workflows described with the Arazzo specification.
Agentcard — connect a user and verify identity
Connect an end user, record consent, and run identity verification (KYC) end to end.
ARAZZOAgentcard — verify phone and fund wallet
Verify a user's phone, create an Apple/Google Pay funding session, and poll it to completion.
ARAZZOMCP Servers 1
Model Context Protocol servers that expose these APIs to AI agents.
agentcard-mcp.yml
MCP SERVEREvent Specifications 2
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Agentcard Webhooks
Event notifications Agentcard delivers to destinations you register in the dashboard. Every delivery is a POST with a signed envelope { id, type, created, livemode, data }. Veri...
ASYNCAPIAgentcard Webhooks
ASYNCAPISecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 5
Portal, sign-up, and the first successful call
Documentation 3
Reference material describing how the API behaves
Agent Surfaces 5
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 9
Pagination, idempotency, versioning, errors, and events
Scroll for all 9
Build 5
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 2
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 3
Properties that don't map to a standard resource type