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 30 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...
Arazzo Workflows 3
Multi-step API workflows described with the Arazzo specification.
_Index
ARAZZOAgentcard — 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 1
Properties that don't map to a standard resource type