The email infrastructure
for autonomous vendor communication.
Developers building vendor agents need primitives to send purchase orders, negotiate terms via threaded email, and track responses across suppliers. Mailgent provides the email API so your agent can manage vendor relationships at scale without manual coordination.
API Primitives used
mail.sendSend purchase orders
Deliver POs, RFQs, and order confirmations to vendors from a dedicated procurement agent identity.
mail.replyNegotiate terms
Reply in-thread to negotiate pricing, delivery schedules, minimum order quantities, and payment terms with vendors.
mail.list_messagesTrack vendor responses
Monitor for vendor replies — order confirmations, shipping updates, and invoice submissions.
mail.get_threadLoad negotiation history
Retrieve the full thread to understand pricing history, agreed terms, and outstanding items.
Vendor communication scales linearly with supplier count.
Every supplier relationship requires a constant flow of emails — purchase orders, delivery confirmations, pricing negotiations, and quality updates. As your supplier base grows from ten to a hundred, procurement teams spend more time writing routine emails than negotiating better deals or finding new suppliers.
Developers building vendor agents need email primitives that send structured messages, carry threaded negotiations, and track responses across multiple suppliers. Mailgent provides mail.send for outbound, mail.reply for negotiations, mail.list_messages for tracking, and mail.get_thread for context.
How to build it.
mail.sendSend purchase orders
Your agent sends POs and RFQs to vendors using mail.send, including item details, quantities, and required delivery dates. Each message goes from a professional procurement identity.
mail.replyTrack and negotiate
The agent monitors for vendor responses with mail.list_messages. When a vendor counters on price or delivery, it replies in-thread using mail.reply based on your negotiation parameters.
mail.get_threadConfirm and close
Once terms are agreed, the agent sends confirmation, labels the thread with the agreed terms using mail.update_labels, and archives the negotiation for reference.
Example prompt
“Send RFQs to our three packaging suppliers for 10,000 units. Compare their responses on price and lead time. Reply to the best offer requesting a 5% volume discount. Notify procurement of the final terms.”
What developers build.
RFQ management
Build agents that send requests for quotes to multiple vendors, compare responses, and shortlist based on price, quality, and lead time.
Order tracking
Build agents that email vendors for shipping updates, parse tracking numbers and ETAs from replies, and alert your operations team when deliveries are delayed.
Contract renewal
Build agents that notify vendors of upcoming contract renewals well in advance, negotiate updated terms and pricing via email, and flag agreements that need legal review.
Quality issue communication
Build agents that notify vendors of quality issues with supporting evidence, request corrective action plans, and track resolution progress via threaded email.
Why not use a procurement platform?
Procurement platforms assume your vendors will log into a portal. Most vendors — especially smaller ones — prefer email. They are not going to create an account on your platform to confirm a $500 order. Email is the universal protocol for business communication.
Mailgent gives you email primitives that work with every vendor. mail.send delivers structured requests, mail.reply carries negotiations, and mail.get_thread maintains the full history. Your agent speaks the language vendors already use.
Procurement identity
Vendor emails go from a dedicated agent identity. Supplier communications are isolated from internal mail.
Negotiation records
Every email thread is preserved. Full audit trail of what was quoted, negotiated, and agreed.
Access controls
The vendor agent can only access procurement-related threads. It cannot read financial or HR communications.