Presend MCP Server

Check a crypto address against the OFAC sanctions list (EVM)

{
  "type": "object",
  "properties": {
    "address": {
      "type": "string",
      "description": "EVM address (0x + 40 hex chars) or Cosmos SDK bech32 address to check against the OFAC SDN sanctions list."
    }
  },
  "required": [
    "address"
  ]
}

Check which AI crawlers are allowed by robots.txt

{
  "type": "object",
  "properties": {
    "domain": {
      "type": "string",
      "description": "Domain to check, e.g. example.com. robots.txt is fetched from https://<domain>/robots.txt."
    }
  },
  "required": [
    "domain"
  ]
}

Encode or decode Base64

{
  "type": "object",
  "properties": {
    "action": {
      "type": "string",
      "description": "Either \\\"encode\\\" or \\\"decode\\\"."
    },
    "text": {
      "type": "string",
      "description": "Text to encode, or Base64 string to decode."
    }
  },
  "required": [
    "action",
    "text"
  ]
}

Convert color formats

{
  "type": "object",
  "properties": {
    "hex": {
      "type": "string",
      "description": "Hex color code, e.g. #ff0000 or ff0000. Provide exactly one of hex, rgb, or hsl."
    },
    "rgb": {
      "type": "string",
      "description": "RGB color, e.g. 255,0,0. Provide exactly one of hex, rgb, or hsl."
    },
    "hsl": {
      "type": "string",
      "description": "HSL color, e.g. 0,100%,50%. Provide exactly one of hex, rgb, or hsl."
    }
  },
  "required": []
}

Convert between JSON and CSV (GET)

{
  "type": "object",
  "properties": {
    "direction": {
      "type": "string",
      "description": "Either \\\"csv-to-json\\\" or \\\"json-to-csv\\\"."
    },
    "data": {
      "type": "string",
      "description": "The CSV or JSON text to convert, matching the chosen direction."
    }
  },
  "required": [
    "direction",
    "data"
  ]
}

Direct CVE/GHSA vulnerability lookup by identifier

{
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "description": "CVE, GHSA, or other OSV-native identifier, e.g. CVE-2021-44228."
    }
  },
  "required": [
    "id"
  ]
}

DNS record lookup (A, AAAA, CNAME, MX, TXT, NS)

{
  "type": "object",
  "properties": {
    "domain": {
      "type": "string",
      "description": "Domain to look up, e.g. example.com."
    },
    "type": {
      "type": "string",
      "description": "Narrow to a single record type. Omit to get all 6 at once."
    }
  },
  "required": [
    "domain"
  ]
}

Detect disposable email domains

{
  "type": "object",
  "properties": {
    "email": {
      "type": "string",
      "description": "Email address to check against a list of known disposable/temporary email domains."
    }
  },
  "required": [
    "email"
  ]
}

Domain email anti-spoofing check (SPF/DMARC/DKIM)

{
  "type": "object",
  "properties": {
    "domain": {
      "type": "string",
      "description": "Domain to check SPF, DKIM, and DMARC records for, e.g. example.com."
    }
  },
  "required": [
    "domain"
  ]
}

Validate an email address

{
  "type": "object",
  "properties": {
    "email": {
      "type": "string",
      "description": "Email address to validate for correct syntax and a resolvable domain."
    }
  },
  "required": [
    "email"
  ]
}

Combined email verification

{
  "type": "object",
  "properties": {
    "email": {
      "type": "string",
      "description": "Email address to run through combined syntax, disposable-domain, and MX-record checks."
    }
  },
  "required": [
    "email"
  ]
}

Fetch a domain's favicon URL

{
  "type": "object",
  "properties": {
    "domain": {
      "type": "string",
      "description": "Domain to fetch the favicon URL for, e.g. example.com."
    }
  },
  "required": [
    "domain"
  ]
}

Validate an IBAN (ISO 7064 mod-97 checksum)

{
  "type": "object",
  "properties": {
    "iban": {
      "type": "string",
      "description": "IBAN to validate. Spaces are ignored."
    }
  },
  "required": [
    "iban"
  ]
}

Get caller IP geolocation

{
  "type": "object",
  "properties": {},
  "required": []
}

IP reputation check against a curated list of known spam/hijacker netblocks

{
  "type": "object",
  "properties": {
    "ip": {
      "type": "string",
      "description": "IPv4 address to check against a curated list of known spam/hijacker netblocks."
    }
  },
  "required": [
    "ip"
  ]
}

Decode a JWT

{
  "type": "object",
  "properties": {
    "token": {
      "type": "string",
      "description": "The JWT to decode. Decodes header and payload only -- does not verify the signature (use /jwt-verify for that)."
    }
  },
  "required": [
    "token"
  ]
}

Verify a JWT's cryptographic signature

{
  "type": "object",
  "properties": {
    "token": {
      "type": "string",
      "description": "The JWT to verify. Checks the cryptographic signature -- use /jwt-decode if you only need to read the header and payload."
    },
    "secret": {
      "type": "string",
      "description": "Required for HS256/384/512."
    },
    "jwk": {
      "type": "object",
      "description": "Public key in JWK format, for RS/PS/ES algorithms."
    },
    "jwks_url": {
      "type": "string",
      "description": "URL to a JWKS document; the key is matched by the token's \"kid\" header."
    }
  },
  "required": [
    "token"
  ]
}

Extract Open Graph / Twitter Card metadata from a URL

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "URL to extract title, description, and Open Graph / Twitter Card metadata from."
    }
  },
  "required": [
    "url"
  ]
}

Detect a suspicious npm package maintainer change

{
  "type": "object",
  "properties": {
    "ecosystem": {
      "type": "string",
      "description": "Currently only \\\"npm\\\" is supported."
    },
    "package": {
      "type": "string",
      "description": "Package name, e.g. lodash"
    }
  },
  "required": [
    "ecosystem",
    "package"
  ]
}

Generate a secure password

{
  "type": "object",
  "properties": {
    "length": {
      "type": "string",
      "description": "Desired password length. Defaults to a reasonable secure length if omitted."
    },
    "symbols": {
      "type": "string",
      "description": "Whether to include symbol characters. 1 for yes, 0 for no."
    },
    "uppercase": {
      "type": "string",
      "description": "Whether to include uppercase letters. 1 for yes, 0 for no."
    },
    "numbers": {
      "type": "string",
      "description": "Whether to include numeric digits. 1 for yes, 0 for no."
    },
    "exclude_ambiguous": {
      "type": "string",
      "description": "Whether to exclude visually ambiguous characters (e.g. 0/O, 1/l). 1 for yes, 0 for no."
    }
  },
  "required": []
}

Check if a password has been breached

{
  "type": "object",
  "properties": {
    "password": {
      "type": "string",
      "description": "Password to check against known data-breach corpora. Checked via k-anonymity (only a partial hash prefix is sent) -- the full password is never transmitted."
    }
  },
  "required": [
    "password"
  ]
}

Combined password strength + breach check

{
  "type": "object",
  "properties": {
    "password": {
      "type": "string",
      "description": "Password to evaluate for strength (length, character variety, common patterns)."
    },
    "check_breach": {
      "type": "boolean",
      "description": "Whether to also check the password against known data-breach corpora via k-anonymity. true or false."
    }
  },
  "required": [
    "password"
  ]
}

Validate and format a phone number

{
  "type": "object",
  "properties": {
    "number": {
      "type": "string",
      "description": "Phone number to validate and format, ideally in E.164 format (e.g. +14155552671)."
    },
    "country": {
      "type": "string",
      "description": "ISO 3166-1 alpha-2 country code (e.g. US, FR), used to interpret a number with no leading +."
    }
  },
  "required": [
    "number"
  ]
}

Full redirect chain trace

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "URL to follow the full redirect chain for, hop by hop."
    }
  },
  "required": [
    "url"
  ]
}

GitHub repository health signals

{
  "type": "object",
  "properties": {
    "repo": {
      "type": "string",
      "description": "GitHub repository in owner/name format, e.g. lodash/lodash."
    }
  },
  "required": [
    "repo"
  ]
}

Audit a CometBFT RPC endpoint (health, peers, unsafe-method exposure)

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "Base URL of a CometBFT RPC endpoint to audit, e.g. https://rpc.cosmos.network:443."
    }
  },
  "required": [
    "url"
  ]
}

Audit HTTP security headers

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "URL to audit HTTP security headers for (CSP, HSTS, X-Frame-Options, etc.)."
    }
  },
  "required": [
    "url"
  ]
}

Combined security posture report

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "URL to run a combined security posture check against (headers, reputation, and related signals)."
    }
  },
  "required": [
    "url"
  ]
}

Passive subdomain discovery

{
  "type": "object",
  "properties": {
    "domain": {
      "type": "string",
      "description": "Domain to passively discover subdomains for via Certificate Transparency logs, e.g. example.com."
    }
  },
  "required": [
    "domain"
  ]
}

Combined supply-chain risk check (maintainer-change + vulnerability + typosquat + repo-health)

{
  "type": "object",
  "properties": {
    "ecosystem": {
      "type": "string",
      "description": "Package ecosystem, e.g. npm. maintainer-change-check only runs for npm."
    },
    "package": {
      "type": "string",
      "description": "Package name to check."
    }
  },
  "required": [
    "ecosystem",
    "package"
  ]
}

Text similarity via SimHash (1 or 2 texts)

{
  "type": "object",
  "properties": {
    "texts": {
      "type": "array",
      "description": "1 text (hash only) or 2 texts (compare). Max 200,000 characters each."
    }
  },
  "required": [
    "texts"
  ]
}

Convert timestamps

{
  "type": "object",
  "properties": {
    "unix": {
      "type": "string",
      "description": "Unix timestamp (seconds since epoch) to convert to a human-readable date. Provide either unix or date, not both."
    },
    "date": {
      "type": "string",
      "description": "Date/time string to convert to a Unix timestamp. Provide either unix or date, not both."
    }
  },
  "required": []
}

Decode a raw signed Cosmos SDK transaction (protobuf)

{
  "type": "object",
  "properties": {
    "tx": {
      "type": "string",
      "description": "Base64-encoded Cosmos SDK TxRaw protobuf bytes, as returned by a chain's CometBFT RPC /block or /tx_search endpoints."
    }
  },
  "required": [
    "tx"
  ]
}

Package name typosquatting check

{
  "type": "object",
  "properties": {
    "ecosystem": {
      "type": "string",
      "description": "Package ecosystem, e.g. npm or PyPI."
    },
    "package": {
      "type": "string",
      "description": "Package name to check for likely typosquatting of a well-known package in the given ecosystem."
    }
  },
  "required": [
    "ecosystem",
    "package"
  ]
}

Clean a single URL

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "URL to strip tracking parameters from (utm_*, fbclid, gclid, and similar)."
    }
  },
  "required": [
    "url"
  ]
}

Check URL against malware/phishing database

{
  "type": "object",
  "properties": {
    "url": {
      "type": "string",
      "description": "URL to check against known phishing/malware URL databases."
    }
  },
  "required": [
    "url"
  ]
}

Parse a User-Agent string

{
  "type": "object",
  "properties": {
    "ua": {
      "type": "string",
      "description": "User-Agent string to parse. If omitted, the request's own User-Agent header is parsed instead."
    }
  },
  "required": []
}

Generate UUIDs

{
  "type": "object",
  "properties": {
    "count": {
      "type": "string",
      "description": "Number of UUIDs (v4) to generate. Defaults to 1 if omitted."
    }
  },
  "required": []
}

Validate an EU VAT number via the official VIES service

{
  "type": "object",
  "properties": {
    "country": {
      "type": "string",
      "description": "2-letter EU country code (EL for Greece, XI for Northern Ireland). Optional if vat includes the prefix."
    },
    "vat": {
      "type": "string",
      "description": "VAT number, with or without the country prefix."
    }
  },
  "required": [
    "vat"
  ]
}

Package vulnerability check (OSV.dev)

{
  "type": "object",
  "properties": {
    "ecosystem": {
      "type": "string",
      "description": "Package ecosystem, e.g. npm, PyPI, Go, crates.io, Maven, RubyGems, Packagist, or NuGet."
    },
    "package": {
      "type": "string",
      "description": "Package name to check against OSV.dev for known CVEs."
    },
    "version": {
      "type": "string",
      "description": "Omit to check all versions of the package."
    }
  },
  "required": [
    "ecosystem",
    "package"
  ]
}

Domain registration lookup (WHOIS via RDAP)

{
  "type": "object",
  "properties": {
    "domain": {
      "type": "string",
      "description": "Domain to look up registration details for via RDAP, e.g. example.com."
    }
  },
  "required": [
    "domain"
  ]
}