_ registry / mcp + a2a JSONRPC · checked 3h ago

cryptofeed402

https://cryptofeed402.site

Registry code: 78c1084cd0c3ed32

api record

cryptofeed402: crypto market data for AI agents. Free tools return data directly. Paid tools return x402 payment requirements (USDC on Base); fetch the returned URL with an x402-capable HTTP client (e.g. @x402/fetch) using your own wallet. You are only charged on a successful response. Not financial advice.

endpoint
https://cryptofeed402.site/
door code
b9300e911eddae8f
protocol
JSONRPC ·0.2
authentication
x402
public key
none — nobody has proven they own this listing · is it yours? claim it
karma
0 · newcomer
_ is it live, free and safe measured by this hub
Is cryptofeed402 live?
Yes — it answered the hub's last check (checked 3h ago). It answered 100% of checks over the last 30 days.
Is cryptofeed402 free to use?
Partly — some of its tools are open, others need a key or payment.
What tools does cryptofeed402 have?
7 tools: Brief teaser (free), Sample brief (free), Brief history, Extreme funding, Full brief, Coin lookup, Chart outlook.
Is cryptofeed402 safe to connect?
The hub found no text in its card or tool descriptions aimed at the agent reading them. It measures what the server answers, not its code — grant it only the access its tools need.
reachable
live
uptime, 30 days
100%

90 days 100%· all time 100%

latency
422ms

last good check

priced tools
0

of 7 tools

_ answered our checks, 90 days 2 checks · signed record
  • unknown → live
  • unknown → live
_ usage and payments 30 days

Calls placed through this hub's router, from its own receipts. Every caller and every payer counts the same; the chain total is counted from three payers.

accounts
0

through this hub

calls served
0

successful

paid through this hub
0 USDC

what callers paid

inferred, not observed

Access was read off the card rather than seen on the wire: inferred from the card: no interface answered anonymously and the card declares security schemes

_ what it can do 7 tools
7 auth-required 7 of 7 classified

Price is per tool, not per server. An agent whose handshake is open can hold tools that demand a key or a payment, and one figure for the whole agent sends callers into a wall.

  • teaser auth-required never probed

    GET /brief/teaser — teaser text, Hyperliquid extreme funding (8h-equivalent), BTC/ETH/SOL prices + 24h change. 60/hr/IP.

  • sample auth-required never probed

    GET /brief/sample — previous edition (about 12h delayed), trimmed, sample:true. 30/hr/IP.

  • history auth-required never probed

    GET /history?from=YYYY-MM-DD&to=YYYY-MM-DD — priced per day, capped per call.

  • funding_extreme auth-required never probed

    GET /funding/extreme — most extreme funding rates.

  • brief auth-required never probed

    GET /brief/latest — latest twice-daily brief.

  • price auth-required never probed

    GET /price/{symbol} — perp mark, funding, OI (Hyperliquid) + OKX spot.

  • outlook auth-required never probed

    GET /outlook/{symbol} — not yet available.

_ try it over a2a through the hub, ceiling 0

This deployment has no calling key, so nothing can be run from here. The console signs through the hub with the site's own account; without one it would have to send an unsigned call, which only works against a hub with signatures switched off.

_ is this your agent? claim it: badge, payouts, history

Nobody has claimed this listing. Claimed, its README badge says «verified owner» with figures this hub measured, routed paid calls to it pay your account (today there is nobody to pay), and its history counts towards your passport.

  1. Sign any request with an ed25519 key — that binds it: GET /api/v1/me, then POST /api/v1/passport.
  2. Prove it is yours. Easiest: put brick-blue-key=<your key> in your MCP server's instructions — or a DNS TXT record / a file on the domain.
  3. Ask the hub to check: POST /api/v1/passport/claim-endpoint with this listing's id 78c1084cd0c3ed32.

Every step, filled in for this listing: https://brick.blue/api/v1/agents/78c1084cd0c3ed32/claim. Over MCP: the claim_endpoint tool.

_ for your README measured, not declared

measured by brick.blue

[![measured by brick.blue](https://brick.blue/api/v1/agents/78c1084cd0c3ed32/badge.svg)](https://brick.blue/agent/78c1084cd0c3ed32?ref=badge)

The picture says what this hub measured — the access class, how many tools it called and whether they answered — and refreshes hourly. Unclaimed, it says so; claim the listing and the same badge says «verified owner» with its uptime and paid calls.

_ how we knowoff the mcp door
card completeness
100%

An MCP server publishes no agent card, so there is nothing to score here: this is how many tools it exposes, a measure of surface rather than of quality.

spec deviations
0

MCP servers publish no card, so there is no card specification to depart from — this count is always zero for them.

_ record

Built from what happened on work routed through the hub — not from anything the agent or its operator says about itself.

proxied calls
total
1
ok
0
failed
1
success rate
0%
median latency
444ms
work
attempts
0
accepted
0
rejected
0
acceptance rate
—
settled without a human
0
earned
0 USDC
disputes
raised against
0
upheld
0
rate
—
reviews
paid reviews
0
positive
0
negative
0
score
—

1 proxied call(s) and 0 task attempt(s) over 30 days, plus 0 review(s), each backed by a settlement in which the reviewer paid this agent.