Can other agents read your agent card?

An agent introduces itself with a card published at /.well-known/agent-card.json. It is the only document another agent reads before deciding to call you. This tool fetches it, checks it against the specification, and shows you the detail.

Readable card, points to review

No required field is missing, but some points deserve attention.

What the card declares

Name: HostDeFi Token Risk API
Provider: HostDeFi
Agent version: 1.2.0
Protocol version: 0.3.0
Transport: JSONRPC
Endpoint: https://hostdefi.com/api/v1/a2a
Card shape: pre-v1.0
Location: standard location
Skills: 7
Response time: 152 ms

Findings

WarningCard written in the shape used before v1.0 of the protocol
NoteCard not signed: nothing attests that it comes from its authorsignatures
Noteurl moved to supportedInterfaces[0].url in v1.0url
NoteprotocolVersion moved to supportedInterfaces[].protocolVersion in v1.0protocolVersion
NotepreferredTransport moved to supportedInterfaces[0].protocolBinding in v1.0preferredTransport
NotesupportsAuthenticatedExtendedCard moved to capabilities.extendedAgentCard in v1.0supportsAuthenticatedExtendedCard

Declared skills

Free token safety scan (A2A message/send)Send a Solana mint, an EVM 0x address, or an exact token name/ticker in a text or data part; the task completes with the free scanner's structured risk read (authority state, liquidity, holder concentration, contract flags) as a data-part artifact. No payment.
- free
- token-safety
- risk
- solana
- evm
- a2a
Token safety verdictA+-F grade, score and verdict prose for a token by chain + address, or by free-form query resolved to the top-liquidity match. Solana and major EVM chains (paid via x402 HTTP or the MCP tools, not over A2A).
- crypto
- token-safety
- risk
- solana
- evm
- x402
Pre-graduation Solana signalsBundled-launch detection, curve-aware holder concentration, Token-2022 trap flags and authority state for early Solana mints (paid via x402 HTTP or the MCP tools, not over A2A).
- solana
- memecoin
- launch
- risk
- x402
Wallet portfolio auditRisk-graded verdicts for a Solana wallet's largest token holdings (up to 10) in one call (paid via x402 HTTP or the MCP tools, not over A2A).
- solana
- wallet
- portfolio
- risk
- x402
Trend-radar alertsRecent big dated movers with real market cap, as structured JSON (paid via x402 HTTP or the MCP tools, not over A2A).
- market-data
- alerts
- x402
Safety datasets and listingsDated weekly snapshot data in bulk: graded token listings per chain (Solana + major EVM), the rug/collapse gate-exit ledger, radar alert history, and the full safety-snapshot dataset in one call (paid via x402 HTTP or the MCP tools, not over A2A).
- dataset
- token-safety
- rug-pull
- solana
- evm
- x402
x402 provider-risk gradesVet an x402 seller before paying it: A-F grades from observable signals (402-spec fidelity, price sanity, payTo presence, TLS, latency, reachability) for crawled x402 resources and providers, as a dated snapshot (paid via x402 HTTP or the MCP tools, not over A2A).
- x402
- agent-economy
- trust
- risk
- dataset

Show the result

This badge follows your readings: it changes when your card changes. Paste it in your README.

Markdown

[![A2A card](https://kopass.app/a2a/badge/aHR0cHM6Ly9ob3N0ZGVmaS5jb20.svg)](https://kopass.app/a2a/validator?url=https://hostdefi.com)

HTML

<a href="https://kopass.app/a2a/validator?url=https://hostdefi.com"><img src="https://kopass.app/a2a/badge/aHR0cHM6Ly9ob3N0ZGVmaS5jb20.svg" alt="A2A card" height="20"></a>

The rules come from the protocol's specification/a2a.proto file, where every required field is marked as such. Nothing is added.

Cards read here feed the KoPass daily reading: 225 agents followed, 217 of which answered on the last pass.

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