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Browse traits, filter 10,000 punks, view listings and bids, generate Merkle proofs, and access bid pricing for CryptoPunks NFTs.
Do not connect
A critical issue was found. Do not connect this server as-is.
Scanned 1 month ago Due for re-check
A server can change after it's graded. Re-run the automated scan to refresh this report.
This grade is deterministic and reproducible: the same server surface always yields the same grade under a given algorithm version. It is a real automated assessment computed by the MCPGrade engine from what the probe actually observed — not a fabricated or opinion score. It is not a manual human pentest, so it can miss context-specific risks.
Every signal below was measured directly by the automated probe. The grade is derived only from evidence like this — nothing is assumed.
The lightyear-cryptopunks MCP server exposes 11 tools, focused primarily on general-purpose capabilities. Its published description reads: "Browse traits, filter 10,000 punks, view listings and bids, generate Merkle proofs, and access bid pricing for CryptoPunks NFTs". It communicates over Streamable HTTP using the 2025-06-18 protocol revision, and does not require authorization to connect. MCPGrade currently rates lightyear-cryptopunks F — a critical issue was found and the server should not be connected as-is. Its most notable findings include "Cross-tool shadowing" and "Cross-tool shadowing". This report is a deterministic, reproducible automated assessment: the same observed surface always yields the same grade under a given algorithm version, and it is refreshed as new scans arrive and free to read — but it is not a substitute for a manual human security review. Always re-check lightyear-cryptopunks's advertised tools, transport security, and authorization posture before connecting an autonomous agent or sharing sensitive context with it.
Add lightyear-cryptopunks to an MCP client using the endpoint below. Review the grade and findings above before granting an autonomous agent access.
MCP endpoint
https://punks.lightyear.build/api/mcpStreamable HTTP transport. This is the MCP endpoint, not a website — paste it into your MCP client server list rather than a browser.
Captured passively during the read-only scan. Click any value to find servers that match it.
The tools this server advertises via tools/list — names, purposes, and the parameters each accepts, exactly as enumerated read-only.
List all CryptoPunk type categories with their counts. Rate limit: 10 per 10 min (read bucket — shared with browse_traits, get_punk_details, get_listings, get_floor_price, get_bids_for_punk, get_bids_
List all CryptoPunk traits with their counts. Optionally filter by type to see how many punks of that type have each trait. Rate limit: 10 per 10 min (read bucket — shared with browse_types, get_punk_
Filter CryptoPunks by type and traits. Returns matching punk IDs and their Merkle root. Rate limit: 5 per 10 min (compute bucket — shared with compute_merkle_root, resolve_merkle_root).
Get metadata for specific CryptoPunks: type, traits with rarity percentages, and permalink. Rate limit: 10 per 10 min (read bucket — shared with browse_types, browse_traits, get_listings, get_floor_pr
Compute the Merkle root for a set of CryptoPunk IDs. The root matches the on-chain Solady MerkleProofLib encoding used by the Stash contract. Rate limit: 5 per 10 min (compute bucket — shared with fil
Get currently listed CryptoPunks from the native marketplace. By default returns only publicly buyable listings (excludes restricted onlySellTo and zero-value entries); pass `includeRestricted: true`
Get the current floor ask price from the native CryptoPunks marketplace. Excludes restricted (onlySellTo) and zero-value listings. Returns `totalActive` (same denominator as get_listings). Rate limit:
Get pending EIP-712 bids that include a specific CryptoPunk. Returns bids from the CryptoPunks Bids API. Rate limit: 10 per 10 min (read bucket — shared with browse_types, browse_traits, get_punk_deta
Get pending EIP-712 bids matching a specific Merkle root. Useful for seeing competition on a trait-based bid set. Rate limit: 10 per 10 min (read bucket — shared with browse_types, browse_traits, get_
Analyze market data and recommend a bid price range for a CryptoPunk trait selection. Combines floor price, competing bids, and set composition into actionable guidance. `composition` lists only the t
Reverse-engineer a Merkle root back to its punk IDs and inferred trait selection. ONLY works for roots that already have at least one bid in the CryptoPunks Bids API — this tool looks bids up by root,
Sorted worst-first. Each finding shows its severity, what it means, its OWASP MCP Top-10 mapping, and a recommended fix — the check id links to the exact methodology row that produced it.
tool: browse_types
A tool description tries to alter the model’s use of another tool.
t — shared with browse_traits, get_punk_details, get_listings, get_floor_pricRecommendationDescriptions must describe only their own tool.
tool: browse_traits
A tool description tries to alter the model’s use of another tool.
t — shared with browse_types, get_punk_details, get_listings, get_floor_pricRecommendationDescriptions must describe only their own tool.
tool: filter_punks
A tool description tries to alter the model’s use of another tool.
t — shared with compute_merkle_root, resolve_merkle_root).RecommendationDescriptions must describe only their own tool.
tool: get_punk_details
A tool description tries to alter the model’s use of another tool.
t — shared with browse_types, browse_traits, get_listings, get_floor_price,RecommendationDescriptions must describe only their own tool.
tool: compute_merkle_root
A tool description tries to alter the model’s use of another tool.
t — shared with filter_punks, resolve_merkle_root).RecommendationDescriptions must describe only their own tool.
tool: get_listings
A tool description tries to alter the model’s use of another tool.
t — shared with browse_types, browse_traits, get_punk_details, get_floor_priRecommendationDescriptions must describe only their own tool.
tool: get_floor_price
A tool description tries to alter the model’s use of another tool.
t — shared with browse_types, browse_traits, get_punk_details, get_listings,RecommendationDescriptions must describe only their own tool.
tool: get_bids_for_punk
A tool description tries to alter the model’s use of another tool.
t — shared with browse_types, browse_traits, get_punk_details, get_listings,RecommendationDescriptions must describe only their own tool.
tool: get_bids_for_merkle_root
A tool description tries to alter the model’s use of another tool.
t — shared with browse_types, browse_traits, get_punk_details, get_listings,RecommendationDescriptions must describe only their own tool.
tool: resolve_merkle_root
A tool description tries to alter the model’s use of another tool.
t — shared with filter_punks, compute_merkle_root).RecommendationDescriptions must describe only their own tool.
The server accepts tool enumeration (and likely invocation) with no authentication.
RecommendationRequire OAuth 2.1 authorization for any server exposing non-public tools.
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