How to get your MillionVerifier API usage, balance and spend programmatically

What the MillionVerifier API exposes

Call it yourself

Credential. A MillionVerifier API key, passed as the api query parameter.

curl "https://api.millionverifier.com/api/v3/credits?api=$MILLIONVERIFIER_API_KEY"

{ "credits": 48210, "bulk_credits": 48210, "renewing_credits": 0, "plan": 0 }

Gotchas

• The single-verification API takes the key as api; the bulk API takes it as key.
• bulk_credits mirrors credits. Don't add them together.
• Credits never expire.
• The bad-key response on /credits isn't documented, so check for an error field as well as the status.

How MillionVerifier charges

Prepaid credit packs — 1 credit = 1 email verification, credits never expire. Cheaper per credit at higher volume; 100 free on signup.

Free allowance. 100 on signup. On signup, no card.

At zero. 402. At 0 credits verification blocks until you buy another (non-expiring) pack.

• 160 requests per second, per org.

Or let Argus track it

Paste the key once. Argus keeps the ledger, and your coding agent reads it through the MCP server.

• Reads the MillionVerifier balance every hour and keeps the series, so you get burn per day (top-ups never count as negative spend) and days until it hits zero.
• With the SDK, itemizes each call by endpoint and prices it at MillionVerifier's per-operation rates.
• Emails you on low balance, days to zero, a spend spike, or projected overage.
• Hands all of it to your coding agent over MCP, so it can ask what a run cost or how much runway is left without leaving the editor.

> what has millionverifier cost today, and how long until it runs out?

get_overview       → millionverifier: mtd spend, burn per day, days to zero
get_request_costs  { "provider": "millionverifier", "limit": 25 }
get_advisories     → credits_low, spend_spike, rate_limit_low …

Questions

Does MillionVerifier have an API for its balance?

Yes. GET https://api.millionverifier.com/api/v3/credits?api=KEY returns your credit balance.

Can I get MillionVerifier spend per day from the API?

Not as a series. Derive it from how much the balance drops each day, ignoring top-ups.

What happens when MillionVerifier credits run out?

Requests fail with HTTP 402. At 0 credits verification blocks until you buy another (non-expiring) pack.

What key does Argus need for MillionVerifier?

A MillionVerifier API key, passed as the api query parameter.

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