0xArchive
Make your first API call, then explore REST, WebSocket, SDKs, schemas, Hyperliquid L4, and Lighter L3 market data.
AgentCard object — a capabilities object, a declared protocolVersion, and a well-formed skills array.
An A2A client finds this agent by fetching the well-known path on the provider's own host. That is what makes an agent card different from every other agent artifact in this catalog: it is provider-published by construction — it cannot be derived, generated, or reconstructed on a provider's behalf.
https://docs.0xarchive.io/
· transport HTTP+JSON
non-standard supportedInterfaces
0xarchive-market-data
Choose 0xArchive venue families, endpoints, freshness checks, and response envelopes for route-safe market-data workflows.
0xarchive-openapi
Generate route-safe 0xArchive clients, typed examples, and API reference checks from the pinned live OpenAPI contract.
0xarchive-websocket
Build 0xArchive WebSocket subscriptions, replay flows, gap handling, and order-book reconstruction workflows.
2026-09-01 from https://docs.0xarchive.io/.well-known/agent-card.json,
HTTP 200. The body was saved verbatim and is the sole source for
everything on this page — no field is inferred.
View the captured card.
Providers change what they serve; if this card has moved or changed shape,
the provider profile carries the
current state as of the last build.
Work with this as data
Every agent card here is available over the APIs.io API and to AI agents over MCP. A2A Agent Cards is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.