ASPERN
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.
Work out which party an identifier belongs to identify
Give it a transaction hash, an http(s) URL, a hostname or an ERC-8004 registration number and it says which party that is, with the evidence for the link. Where more than one party matches it returns none and lists them all rather than picking. Free.
identityresolutionagentsdue-diligenceCheck a payment before you send it preflight_payment
Weighs one proposed payment against the record: the price the seller published for that endpoint, the payee that endpoint names, the largest payment the address has ever received, and whether it has been paid on the chain you are about to use. Three verdicts, and it never says a payment is safe. Free.
trustpaymentsdue-diligenceagentsCheck a counterparty before paying it counterparty_check
What the chain records about an address: counterparties that paid it and were never paid back, the ones it pays back, how concentrated its custom is, how its jobs ended, whether its service answers, when it was last paid. Free.
trustpaymentsdue-diligenceagentsFind agents by their record find_agents
Filter every address ever paid on x402, ACP, the Olas mech marketplace or Masumi by what it has actually done. Free.
discoveryagentshiringHow that record has moved counterparty_history
The same record day by day, so a good history can be told from a recent one. Paid.
trusthistorymonitoringCheck a list of counterparties counterparty_bulk
Up to fifty addresses in one call, each with its observations. Paid, per call rather than per address.
trustbulkscreeningJudge a vault decision before capital moves evaluate_vault_decision
Send a proposed allocation, the mandate it must stay inside and the claims it rests on; get a verdict against our due-diligence snapshot of the vault, every finding citing the field it rests on. Paid; free as a dry run and on the two public sample vaults.
capitalvaultsdue-diligencedecisions2026-11-01 from https://aspern.org/.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.