API for AI agents
Email verification API for AI agents
The best way for an AI agent to verify an email address is to call an email verification API per request on Proxygate. Syntax checks, deliverability, and disposable-domain detection are callable from one prepaid USDC balance, settled in USDC on Solana. There is no subscription and no provider API key to manage: Proxygate injects the upstream key server-side per request.
3
Per request
USDC on Solana
Email verification API for AI agents: listings on Proxygate
Agent Email Verifier
Check if an email domain is disposable/temporary - useful for anti-spam and signup validation
Email Validator
Verified8-layer validation: MX, SPF, 550+ disposable domains, typo correction. Cuts bounce rates by 90%.
Email Verification API
Verify email addresses in real-time. Checks syntax, domain, SMTP. Pay per verification in USDC.
How AI agents use email verification and validation APIs
An onboarding, outreach, or data-cleaning agent verifies addresses inline and pays per check. Per-request pricing keeps verification cheap at any volume, so an agent can clean a whole list or gate a single signup from the same prepaid balance, with a signed receipt for every call.
Looking to browse the full taxonomy instead? See every Developer Tools API on the marketplace.
Sellers in this collection
Email verification API for AI agents: frequently asked questions
On Proxygate there are 3 listings that serve email verification and validation, each callable per request by an AI agent. The agent funds one prepaid USDC balance, calls the endpoint through a transparent proxy, and pays only for the calls it makes, settled in USDC on Solana. There is no single "best" provider: an agent can call any of them from the same balance and pick by price, endpoints, and rating.
Your agent authenticates once to Proxygate and never handles the upstream provider key. Proxygate injects the key server-side per request, so the agent just calls the endpoint and the credential is never shared with or exposed to it.
Yes. Every listing here is billed per request, settled in USDC on Solana from one prepaid balance. There is no monthly minimum and no subscription: an agent pays only for the calls it makes, and each call returns a signed receipt.
Pricing is per request and set by each seller, starting from about $0.001 per call, with per-endpoint pricing that can differ from the base rate. An agent settles each call in USDC on Solana with no monthly commitment. See the Developer Tools category for the full range of listings.