30 tagged cryptography, measured the same way as everything else here.
Browse within: blockchain 14ethereum 8post-quantum 8cli 6defi 6nextjs 6bip39 5crypto 5cryptocurrency 5
emiliaprotocol/emilia-protocol
MCP server Claude CodeCodexCursor +2
Exact-action approval for consequential agent actions: request, track, and verify signed receipts. Runs locally from the @emilia-protocol/mcp-server npm package. Needs 3 environment variables to run.
nirholas/ethereum-wallet-toolkit
MCP server Claude CodeCodexCursor +2
One of 5 in server.json
MCP Server for Ethereum transaction building, signing, and serialization. Runs locally from the transaction-mcp-server Python package.
SkyShannonProver/shannon-prover
MCP server Claude CodeCodexCursor +2
MCP server "shannon-prover" as configured in SkyShannonProver/shannon-prover. Runs locally from the shannon-prover Python package.
MCP server Claude CodeCodexCursor +2
Zero-dependency Web Crypto & AI Agent MCP Server (AES-256-GCM, RSA-4096, PQC, Signatures). Runs locally from the webcrypt npm package.
MCP server Claude CodeCodexCursor +2
Scan code for quantum-vulnerable cryptography and get NIST post-quantum migration guidance. Runs locally from the @quantakrypto/mcp npm package.
sundsoffice-tech/ai-audit-trail
MCP server Claude CodeCodexCursor +2
Cryptographically verifiable audit trail for AI systems — Ed25519 signed, hash-chained Decision Receipts with ISO 42001 / NIST AI RMF compliance mappings. Runs locally from the ai-audit-trail Python package.
MCP server Claude CodeCodexCursor +2
Give an agent a wallet. Pays for x402 resources within hard limits. Base + USDC, gasless. Runs locally from the x402-trinity npm package. Needs 6 environment variables to run.
ZohaibCodez/discrete-structures-ai-platform
MCP server Claude CodeCodexCursor +2
MCP server for Discrete Mathematics: Boolean Logic, Algorithms, Number Theory, Cryptography. 21 AI-ready tools for education and research. Runs locally from the discrete-structures-mcp Python package.
MCP server Claude CodeCodexCursor +2
Cryptographic identity for AI agents: W3C DIDs, Verifiable Credentials, post-quantum crypto. Runs locally from the @astracipher/core npm package.
MCP server Claude CodeCodexCursor +2
Ed25519-signed receipts for every AI agent action. Local-first, verifiable, no server required. Runs locally from the @agent-receipts/mcp-server npm package.
MCP server Claude CodeCodexCursor +2
MCP server "post-quantum-mcp" as configured in scottdhughes/post-quantum-mcp. Runs locally from the post-quantum-mcp Python package.
MCP server Claude CodeCodexCursor +2
Security testing toolkit for MCP servers and AI agents. Runs locally from the mcp-witness Python package.
MCP server Claude CodeCodexCursor +2
A local cryptographic inventory for developers and AI agents that carries verifiable coverage and its own limits inside the CBOM. Runs locally from the qrp-mcp Python package.
MCP server Claude CodeCodexCursor +2
Loads signed ALTWEB context capsules — refuses unsigned, tampered, or untrusted by default. Runs locally from the altweb-context npm package. Needs 1 environment variable to run.
Fulcrum-Enterprises/verify-proof
MCP server Claude CodeCodexCursor +2
MCP server "verify-proof" as configured in Fulcrum-Enterprises/verify-proof. Launched with verify-proof-mcp.
MCP server Claude CodeCodexCursor +2
One of 6 in
BridgeGuard MCP Server - Cross-chain bridge security audit tools for AI coding agents. Scan bri... Runs locally from the bridgeguard-mcp npm package.
MCP server Claude CodeCodexCursor +2
Trust tools for agent-to-agent dealings — prove, vet, and bind with verifiable evidence (MCP server). Runs locally from the synpareia-trust-mcp Python package. Needs 4 environment variables to run.
attestedintelligence/aga-mcp-server
MCP server Claude CodeCodexCursor +2
Verifiable decision records for AI agents: signed receipts for calls to its own governed tools. Runs locally from the @attested-intelligence/aga-mcp-server npm package. Needs 2 environment variables to run.
MCP server Claude CodeCodexCursor +2
MCP server "bardo", hosted remotely at bardo.id, as configured in calebe/bardo.
MCP server Claude CodeCodexCursor +2
Two-key JSON seal/open. Cloak needs a live license. Open is keys-only. Runs locally from the json-chamber-mcp npm package.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: