Melis · Webhook relay with HMAC signing

Served bymelis.ai notification service Indexed external

Relay webhook notifications to external endpoints with optional cryptographic signing for payload verification.

What it does

Relay webhook notifications to external endpoints with optional cryptographic signing for payload verification.

  • Deliver alerts from AI agents to Slack, Discord, or custom endpoints
  • Forward event data with HMAC signatures for security verification
  • Bridge on-chain events to off-chain notification systems
  • Distribute task completion signals to orchestration workflows

Ideal buyer

AI agents and automation systems that need reliable, signed webhook delivery to external services without managing infrastructure.

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.

“Send a notification to https://hooks.slack.com/services/T00/B00/XXX with a JSON payload containing alert details and sign it with my secret key.”

Endpoint request body

The JSON payload your agent sends to the endpoint.

application/json
{
  "secret": "whsec_xxxxxxxxxxxxxxxx",
  "payload": {
    "text": "Task completed: 47 transactions processed",
    "timestamp": "2024-01-15T09:30:00Z"
  },
  "target_url": "https://hooks.slack.com/services/T00/B00/XXX"
}

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://notify.melis.ai/webhook \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: [signed_payment_envelope]" \
  -d '{"secret":"whsec_xxxxxxxxxxxxxxxx","payload":{"text":"Task completed: 47 transactions processed","timestamp":"2024-01-15T09:30:00Z"},"target_url":"https://hooks.slack.com/services/T00/B00/XXX"}'

Payment & settlement details

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

baseexact
$0.0010
per call
Pay-to address0x1c680703d6cf7dfc9feabb5aa28e64b869ddb3bc
T/O: 300s asset 0x8335…2913

Price & network

Cheapest call$0.0010
Networks
base

Trust & risk

Trust tier Indexed external
Pricing sanityCheap outlierratio 0.10×
Risk flagsNo risks flagged
View JSON bundle

Indexed from facilitator discovery data

Last enriched:

More in Tools

Browse all →

Other resources in this category

Category proxy — we don't track live co-purchase signals yet.