Search / io.github.Dansgit2b/lumen-presign-check
Use before signing an EVM tx or EIP-712 message: risk flags + verdict. Informational, no simulation
v1.4.0 · active · repository · descriptor JSON · versions
protogrid{
"mcpServers": {
"lumen-presign-check": {
"type": "http",
"url": "https://lumenworks-x402-decoder.onrender.com/mcp/presign"
}
}
}claude mcp add --transport http lumen-presign-check https://lumenworks-x402-decoder.onrender.com/mcp/presign[mcp_servers.lumen-presign-check]
url = "https://lumenworks-x402-decoder.onrender.com/mcp/presign"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"lumen-presign-check": {
"type": "remote",
"url": "https://lumenworks-x402-decoder.onrender.com/mcp/presign",
"enabled": true
}
}
}{
"mcpServers": {
"lumen-presign-check": {
"type": "http",
"url": "https://lumenworks-x402-decoder.onrender.com/mcp/presign"
}
},
"deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=lumen-presign-check&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vbHVtZW53b3Jrcy14NDAyLWRlY29kZXIub25yZW5kZXIuY29tL21jcC9wcmVzaWduIn0%3D"
}{
"servers": {
"lumen-presign-check": {
"type": "http",
"url": "https://lumenworks-x402-decoder.onrender.com/mcp/presign"
}
}
}{
"mcpServers": {
"lumen-presign-check": {
"httpUrl": "https://lumenworks-x402-decoder.onrender.com/mcp/presign"
}
}
}extensions:
"lumen-presign-check":
enabled: true
name: "lumen-presign-check"
type: streamable_http
uri: "https://lumenworks-x402-decoder.onrender.com/mcp/presign"
timeout: 300
protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28protocol.statelessonly applies to 2026-07-28 serversprotocol.transportstreamable HTTPprotocol.list_ttlonly applies to 2026-07-28 serversauth.prm, auth.as_metadata, auth.cimdno remote uses OAuthauth.secret_in_urlno templated URLtools.descriptionsevery tool has a descriptiontools.description_lengthdescriptions are concisetools.schemasevery tool has an object input schematools.annotationsno tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky onestools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: x402_payment_safety_check (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); explain_before_sign (readOnlyHint, destructiveHint, idempotentHint, openWorldHint)tools.token_costabout 684 tokens to load every tooltools.api_dumptools are not a one-to-one API dumpstability.changesno tool changes in 30 daysstability.rug_pullno tool changed its meaning under the same namedeps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI packageNo tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.
Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.
+repository +namespace-matches-repo -unreachable(5 failures) +updated-10d-ago
Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.
| remote | auth | reachable | uptime 30d | p50 | protocol | last ok |
|---|---|---|---|---|---|---|
https://lumenworks-x402-decoder.onrender.com/mcp/presign streamable-http | none | no (5 failures) | 44% | 378 ms | 2025-11-25 | 2026-10-11 |
explain_before_sign | Lumen Pre-Sign Check. Use before signing any EVM transaction or EIP-712 message: returns {summary, flags[], verdict} with verdict looks_ok | review | do_not_sign_unless_intended. Flags unlimited approve/increaseAllowance, EIP-2612 Permit and Permit2 (typed data and on-chain), setApprovalForAll, unknown spender, admin calls (upgradeTo/transferOwnership), zero-price Seaport orders, long deadlines, chain mismatch and x402 payTo mismatch; decodes multicall/aggregate3 inner calls one level. Example: USDC approve(spender, 2^256-1) -> do_not_sign_unless_intended, UNLIMITED_APPROVAL. Agent policy: abort on do_not_sign_unless_intended, escalate review. Informational, not a security guarantee; looks_ok does not mean safe; no simulation. $0.002, no signup, free tier 20/h; not charged if the call errors. |
x402_payment_safety_check | FREE, deterministic pre-payment check for an x402 endpoint. Give {url} (we fetch its unpaid 402) and/or {payment_required} (402 JSON or base64 header), plus optional expected_pay_to, expected_network, max_price_usdc, listed_price_usdc, facilitator_url, client_config {max_per_call_usdc, max_daily_usdc, idempotency_key, allow_any_pay_to}. Returns verdict ok/review/do_not_pay with checks: HTTPS/health, payTo validity & mismatch, unknown asset/network, price sanity vs cap/listing, timeout/replay window, multiple payTo, unknown facilitator, missing spend caps/idempotency. Nothing is stored; inputs that look like private keys are rejected. |
Schemas: list_tools.
1 other active names share this repository: io.github.Dansgit2b/lumenworks-decoder
{
"name": "io.github.Dansgit2b/lumen-presign-check",
"title": "Lumen Pre-Sign Check",
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"remotes": [
{
"url": "https://lumenworks-x402-decoder.onrender.com/mcp/presign",
"type": "streamable-http"
}
],
"version": "1.4.0",
"repository": {
"url": "https://github.com/Dansgit2b/lumenworks-x402-api",
"source": "github"
},
"description": "Use before signing an EVM tx or EIP-712 message: risk flags + verdict. Informational, no simulation"
}