Reads spot prices from the Chainlink price feed to produce signed reference quotes for covered calls on tokenized stock (strike near 20 delta, premium, expiry, validity window).
Quotes and verifies covered-call pricing for Coinbase-issued tokenized stock (TSLAc on Base), and reports live state of the Kerne covered-call vault holding that asset.
Provides signed reference quotes for one-week covered calls on tokenized Tesla stock (TSLAc): spot, realized volatility, strike, premium and expiry, plus the associated vault's epoch, deposit cap, total assets and open/closed status.
This server has a remotely hosted endpoint. Open its connector listing for connection details, authentication requirements, and setup instructions:
Read-only Kerne data on Base as a Model Context Protocol server: signed proof of reserves for kUSD, a signed reference quote for a covered call on a tokenized stock, a quote checker, and live vault state. Remote, no key, no account, nothing to install.
https://kerne.fi/api/mcpStreamable HTTP. Stateless. Read-only: nothing this server offers can move funds.
Claude Code:
claude mcp add --transport http kerne https://kerne.fi/api/mcpAnything that reads a config file:
{
"mcpServers": {
"kerne": {
"type": "http",
"url": "https://kerne.fi/api/mcp"
}
}
}Registry name: io.github.kerne-protocol/honesty-index. The name is historical
(see the last section). Registry names cannot be renamed, and a second name would
list the same endpoint twice, so the entry keeps it.
Related MCP server: smx-mcp
Tool | What it returns |
| The latest signed proof of reserves for kUSD, the Kerne stablecoin on Base: outstanding kUSD, the USDC held in each PSM contract, the solvency ratio, the skUSD share price and the hedge account, read on chain at one pinned block and signed every 15 minutes by a key that holds no funds. The server checks the hash and the signer and says whether they checked. |
| The latest signed reference quote for a one week covered call on TSLAc (Coinbase tokenized Tesla stock on Base): spot from the Chainlink feed, realized volatility, a strike near 20 delta, the premium, the expiry and how long the quote is valid. A reference price only: not an offer, not advice, not for US persons, and nothing executes from it. |
| Checks a quote: the hash against the signed string, both signatures (EIP-191 over the document, EIP-712 over the on-chain Quote struct) against the published signer, expiry, and whether the price round it is bound to is still the latest. No arguments checks the latest quote; or pass a quote someone else gave you. |
| The covered call vault for TSLAc on Base, read live in one call pinned to one block: epoch, whether an epoch is live, whether sales are paused, deposit cap, total assets, the limits it enforces, the keeper, the latest price round, and what currently stops an epoch from opening. The vault is unaudited. |
No resources and no prompts. Two tools take an optional include_signed_bytes
flag that returns the exact signed string, so you can check the signature
yourself instead of trusting the server's check.
These are in the server's instructions too.
A signed result can be stale. Every signed result says whether its
signature checked and how old it is. Treat verified: false or
is_fresh: false as not current.
A quote is not a trade. get_stock_quote is a reference price. Nothing
executes from it, and get_vault_state says whether deposits are open at
all (read deposits_open).
This file describes a live server, and a live server can quietly stop matching its documentation. So check it:
node probe.mjsIt runs the real handshake against the real endpoint, lists what is actually
offered, makes one real call, and exits non-zero if the live tool list and the
table above have drifted apart in either direction. No dependencies, Node 20 or
later. It runs in CI here daily for the same reason. Its user agent says
kerne-selftest, so the endpoint's public usage counts
(kerne.fi/api/mcp/usage) leave it out.
server.json is the registry descriptor. probe.mjs is the check above. The
server itself runs on kerne.fi rather than as a package here, because it is a
remote server: there is nothing for you to run.
Until 2026-10-28 this endpoint served the Kerne Honesty Index: six tools
(list_rows, get_board, get_row, get_methodology, get_corrections,
get_right_of_reply) over an hourly board of advertised versus realized
stablecoin yield. Those tools are retired, because the collector behind the
board was deleted with its server on that date. Calling one now returns a tool
error that says so. Version 2.0.0 of the registry entry describes the server as
it is today.
MIT licensed.
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
Loading tool schema changelog…
This server cannot be deployed
Pay-per-call crypto data over x402 (USDC on Base). Hosted, no wallet or key held by the server.
Signed BNB Chain reads (balances, tokens, NFTs, prices, TapeOut names) with verifiable receipts
Public Peer activity, receipts, seller rates and liquidity on Base. Read-only; no key or wallet.
On-chain receipts, balances, tx status and address activity, pay-per-call via x402 USDC on Base.
