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Overview

grantex verify is a single command that lets any developer paste a grant token and instantly see everything about it: who issued it, scopes, expiry, delegation chain, revocation status. Works as a standalone tool — no Grantex account needed. 
npm install -g @grantex/cli

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Usage

# Basic verify (offline, no auth needed)
grantex verify eyJhbGciOiJSUzI1NiIs...

# Verbose: show full JWT header + claims
grantex verify eyJ... --verbose

# Check live revocation status (requires network)
grantex verify eyJ... --check-revocation

# Machine-readable JSON output
grantex verify eyJ... --json

# Verify from file
grantex verify --file ./token.jwt

# Verify against specific JWKS URL
grantex verify eyJ... --jwks https://api.grantex.dev/.well-known/jwks.json

# Verify offline with local JWKS file
grantex verify eyJ... --jwks-file ./jwks.json

# Read token from stdin pipe
echo "eyJ..." | grantex verify --stdin

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Output

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Default (Pretty)

  Grantex Grant Token
  ───────────────────────────────────────────

  Status         ✓ Valid
  Grant ID       grnt_01HXYZ
  Agent DID      did:grantex:ag_01HXYZ (travel-booker)
  Principal      user_abc @ acme.com

  Issued         Apr 3, 2026 09:00 UTC (4h ago)
  Expires        Apr 4, 2026 09:00 UTC (in 20h)

  Scopes (3)
  ├ calendar:read
  ├ email:send:max_10  (6 remaining)
  └ payments:initiate:max_500  (₹500 cap)

  Delegation
  └ depth: 0 (direct grant, no sub-delegation)

  Signature      RS256 ✓  kid: grantex-2026-01
  Revocation     ○ Not checked (use --check-revocation)

  ─────────────────────────────────────────────
  Verified in 2ms (offline)

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JSON Output (--json)

{
  "valid": true,
  "grantId": "grnt_01HXYZ",
  "agentDID": "did:grantex:ag_01HXYZ",
  "principalDID": "did:grantex:user_01HABC",
  "issuedAt": "2026-04-03T09:00:00Z",
  "expiresAt": "2026-04-04T09:00:00Z",
  "scopes": ["calendar:read", "email:send:max_10", "payments:initiate:max_500"],
  "delegationDepth": 0,
  "signatureValid": true,
  "algorithm": "RS256",
  "keyId": "grantex-2026-01",
  "revocationStatus": "not_checked",
  "verifiedInMs": 2,
  "errors": []
}

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Verbose (--verbose)

Includes everything above plus raw JWT header and claims: 
  JWT Header
  {
    "alg": "RS256",
    "kid": "grantex-2026-01",
    "typ": "JWT"
  }

  JWT Claims
  {
    "iss": "https://api.grantex.dev",
    "sub": "ag_01HXYZ",
    "agt": "did:grantex:ag_01HXYZ",
    "dev": "dev_acme",
    "scp": ["calendar:read", "email:send:max_10"],
    "iat": 1743674400,
    "exp": 1743760800,
    "jti": "grnt_01HXYZ",
    "delegationDepth": 0
  }

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Error States

Expired token: 
  Status         ✗ Expired
  Expired        2h ago (Apr 3, 2026 08:00 UTC)

  ✗ This token cannot be used.
  To issue a new grant: grantex authorize --agent ag_01HABC
Invalid signature: 
  Status         ✗ Invalid Signature

  ⚠ WARNING: This token may have been tampered with.
  The RS256 signature does not match any key in the JWKS.

  ✗ Do not accept this token.

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Options

FlagDescription
--verboseShow full JWT header and claims JSON
--jsonOutput machine-readable JSON (for scripting)
--check-revocationMake a network call to check live revocation status
--jwks <url>Verify against a specific JWKS URL
--jwks-file <path>Verify offline using a local JWKS JSON file
--file <path>Read token from a file instead of CLI argument
--stdinRead token from stdin (for piping)
CommandDescription
grantex decode <token>Decode JWT without signature verification (like jwt.io)
grantex audit inspect <file>View entries in an offline audit log (JSONL)
grantex audit verify <file>Verify hash chain integrity of an audit log
grantex registry lookup <did>Look up an organization in the Trust Registry
grantex init gemmaScaffold a new Gemma 4 + Grantex project

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Exit Codes

CodeMeaning
0Token is valid
1Token is invalid (expired, bad signature, malformed)
2Usage error (missing arguments)