Push signed webhooks, leave durable work for an agent, or hand off to a registered A2A agent. Accept once and keep the evidence.
PromptJang validates and stores the item and usage record before returning 202.
Push a signed webhook, hold unread mailbox work, or send a standard A2A message.
Inspect attempts, mailbox lifecycle, or A2A acceptance without confusing acceptance with task completion.
Retries, reads, claims, acknowledgements, and replays do not create billable usage. An optional Idempotency-Key prevents duplicate handling and duplicate billing when a producer repeats the same request.
CONTROL
API and MCP sends resolve to targets you created. PromptJang does not forward to arbitrary URLs.
MAILBOX
Unread messages survive agent downtime. Five-minute claims and acknowledgements make ownership explicit through API or MCP.
A2A
PromptJang adapts JSON to A2A v1 HTTP+JSON and stores Task or Message acceptance evidence.
Fail a merchant endpoint, schedule the retry, restore the target, and verify signed delivery evidence.
Accept work while an agent is offline, then pull, claim, and acknowledge it through API or MCP.
Build a standard A2A message, deliver it to a registered agent, and retain remote acceptance evidence.
Open the public Demo Lab → Simulation only · no billable usage
ONE RATE
$0.10
per 1,000 accepted items
No monthly subscription. Live billing is disabled for the founder-assisted beta; accepted usage is still measured locally.
| Accepted items / month | Estimated charge |
|---|---|
| 1,000 | $0.10 |
| 100,000 | $10.00 |
| 1,000,000 | $100.00 |
Usage is grouped into 1,000-item units for local estimates. PromptJang does not create charges or Stripe invoices while live billing is disabled.
Need webhook delivery on your own PostgreSQL? PromptJang Relay is a separate Apache-2.0 product with no Cloud dependency.
READY TO TEST A REAL DELIVERY PATH?
Founder-assisted onboarding keeps the beta small while delivery and billing evidence are verified with each customer.
Request beta access