AgentMail · Reply to Inbox Message

Served byAgentMail | Email Inbox API for AI Agents Indexed external

Send replies to specific messages within an AgentMail inbox by inbox and message ID.

What it does

Send replies to specific messages within an AgentMail inbox by inbox and message ID.

  • Automate email response workflows for customer support agents
  • Trigger contextual replies based on message content analysis
  • Manage threaded conversations in agent-operated inboxes

Ideal buyer

AI agents requiring programmatic email reply capabilities for autonomous communication.

Use with AXON

Run this through your governed agent wallet.

  1. 01
    Bootstrap AXON once with npx @axon402/init.
  2. 02
    Use the AXON runtime MCP tools to search_x402_services or inspect_x402_offer for this service.
  3. 03
    Quote, test-buy, then run the governed paid fetch through AXON.

Send this

Prompt for your agent

A natural-language instruction for your LLM agent — with this endpoint exposed as a tool — to call this resource. Not sent to the endpoint; the endpoint consumes the JSON body below.

Pasting this prompt into a raw ChatGPT or unconfigured agent will notexecute the paid endpoint flow. Run it through an agent with the AXON runtime / MCP tools exposed (see “Use with AXON” above) so the 402 challenge, quote, and governed fetch are handled for you.

“Reply to message 12345 in inbox abc123 with a confirmation response.”

Endpoint request body

The JSON payload your agent sends to the endpoint.

application/json
{
  "body": "Thank you for your message. We will process this shortly.",
  "inbox_id": "abc123",
  "message_id": "12345"
}

Advanced HTTP details

For integrators who need the raw protocol surface. Most agents should use AXON above instead of calling these directly.

curl fallback

curl https://x402.api.agentmail.to/v0/inboxes/%7Binbox_id%7D/messages/%7Bmessage_id%7D/reply \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: [signed_payment_envelope]" \
  -d '{"body":"Thank you for your message. We will process this shortly.","inbox_id":"abc123","message_id":"12345"}'

Payment & settlement details

Raw on-chain settlement parameters. AXON above handles these automatically through quote / test-buy / governed fetch.

baseexact
$0.010
per call
Pay-to address0x6e3184c204e596ded89e8a5693b602097f4ab687
T/O: 300s asset 0x8335…2913
solanaexact
$0.010
per call
Pay-to address7r4e5dwNS68MDaxbw7N8jbzHq7RCMBp9z6smHFH4NXWw
T/O: 300s asset EPjFWd…Dt1v

Price & network

Cheapest call$0.010
Networks
basesolana

Trust & risk

Trust tier Indexed external
Risk flagsNo risks flagged
View JSON bundle

Indexed from facilitator discovery data

Last enriched:

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