Cryptography MCP servers

36 zero-auth developer utilities: MD5/SHA/bcrypt hashing, Base64/hex/URL encoding, UUID/password/passphrase generation, JWT decoding, JSON/YAML/XML formatting, timestamp conversion, CIDR calculator, and text tools.

Cryptographic truth infrastructure for AI agents: seal, verify, anchor, cite, audit.

Fetches receipts, genesis and accumulator snapshots for @forestrie/mcp-verify and labels provenance

MCP verification server for Forestrie receipts — offline, no backend, no key, no network

Signed, publicly logged records of what your AI agent did, with proofs anyone can check offline.

AI agent real-name identity: SM2 keypair, QR real-name link, SD-JWT VP generate/verify.

Verify PDF signatures, detect tampering, and identify PDF/A and PAdES conformance levels.

Post-quantum (ML-DSA-65/FIPS-204) agent identity + AI-decision receipts, verifiable offline.

Verifiable decision records for AI agents: signed receipts for calls to its own governed tools.

Signed, tamper-evident, offline-verifiable audit receipts for AI agent actions.

Deterministic dev utilities: UUIDs, hashes, encoding, JWT, cron, regex. No network, no API key.

Verifiable provenance for AI agents — ZK proofs over confidential documents, no plaintext exposure.

NIST Randomness Beacon v2 — signed public random pulses every 60s.

Issue verifiable credentials from AI agents for $0.10 via x402. On-chain on Celo, IPFS-pinned.

Signed time and SHA-256 witness receipts for agents, with offline verification and x402 payment.

Is this product version FIPS 140-3 validated, in NIST's queue, or expiring? From NIST CMVP data.

Free proof-of-existence attestation for digital files, MCP tools for the imgauth service.

Sigstore Rekor — the public transparency log for software signatures.

Cryptographic identity, SIGIL naming, heartbeat, and passports for AI agents.

Cryptographically verifiable receipts of an agent's delegated work, verified offline.

Cryptographic hash & HMAC MCP.

DoI score lookup, vouch event builder, and offline schnorr verify for AI agents.

Post-quantum (ML-DSA-65/Dilithium-3) proof, provenance & AI-decision receipts, paid via x402.

Generate Ethereum wallets with BIP39 mnemonics, HD paths, vanity addresses, private key backup

Sign and verify W3C Verifiable Credentials so AI agents can cryptographically authorize actions.

Neutral third-party witness: independently fetch, hash, timestamp, archive any URL or API response.

MCP server for verifying and querying vtimestamp proofs on the Verus blockchain

Signed, hash-chained provenance receipts for AI agent actions.

MCP server for creating vtimestamp proofs on the Verus blockchain via a local or remote daemon

Verify, inspect, decode, issue, and bundle PEAC receipts. Portable, offline-verifiable evidence.

Checksum MCP — CRC-32 & Adler-32.

Signs, hash-chains, and verifies compute usage receipts via an MCP server, no issuer trust required.

MCP server for hash utils ai. Features hash text, verify hash, generate uuid. From MEOK AI L...

Verifies Bernstein run receipts and hash chains; lists the shipped presets and adapters. Read-only.

A Model Context Protocol server that brings the capabilities of enigmapython library to LLMs, allowing them to encrypt and decrypt messages using historically accurate Enigma machine emulators.

Tamper-evident audit trails for AI agents — Ed25519-signed, hash-chained, EU AI Act ready.

Local-first Base64, Luhn, key-component XOR, and synthetic ISO-0 PIN block tools.

SSL/TLS scanning, free Let's Encrypt issuance, and certificate-expiry monitoring.

Model Context Protocol (MCP) server that gives AI assistants and agents cryptography tools: key generation, encryption, ML-KEM, ML-DSA signing, hashing, streaming encryption, KMS and CBOM.

CyberChef MCP server providing 28 core data transformations, ciphers, hashing, JWT decoding, representation-calibrated Shannon entropy, and multi-layer payload deobfuscation for AI coding and security agents. npx -y @noorfatima123456/cyber-chef-mcp

Local byte-wrangling toolbox: encoding (hex/Base64/Base32/Base58/Base45…), cryptographic + CRC hashing, base conversion, and CSPRNG tokens/passphrases, plus an opt-in Ethereum/EVM toolset (keccak, ABI/RLP codecs, EIP-191/712 hashing, function/event selectors, EIP-55). No network calls. uvx mcp-bytesmith.

An MCP server that exposes hashlib functionality

MCP server for ECDSA cryptography

MCP server to mount and unmount VeraCrypt containers with secure stdin password handling.

MCP server exposing cryptography library functionality

Zero-install remote MCP server for proof-of-existence file attestation.

Verifiable oracle MCP server: Platon VRF (getrandom), Chronos VDF (computevdf / verifyvdf), LUMEN reputation (getreputationscores) as agent tools. Pay-per-call over AIMarket Hub; every result independently verifiable. stdio · Python · Glama.

Etch is a signed audit chain for AI agent decisions, offline-verifiable against pinned public keys.

Production-grade cryptography toolkit with 31 MCP tools for classical, PQC, and KMS workflows.

On-chain provenance lookup for AnchorRegistry. Resolve AR-IDs, hashes, and full trees. Authless.

Capture a web source, or seal a hash you hold, into a signed receipt anyone can verify offline.

Send API keys and private files to someone else's agent, end-to-end encrypted.

Anchor a file's SHA-256 fingerprint to Bitcoin. The file never leaves the device.

Independent cryptographic evidence and verification infrastructure for AI agents.

Second opinion before an irreversible agent action; signed proofs, free verify, public ledger.

Free, no-account verification of KeyHalve-sealed documents. Read-only; never receives keys.

C2PA Watermark & Provenance MCP server. Built with c2pa-python.