1 What it shows
An agent can act on its own in a paid world — safely, because you set the limit.
- The agent holds a small capped budget, like a prepaid card with a spending limit
- It pays each service directly, on demand, only for what it uses
- Nothing is arranged with any provider in advance — it discovers services as it goes
- Every purchase is a real payment recorded on a public blockchain
2 How it works
One prompt, four paid steps, in order — each through a service the agent found in the Catalog and paid via the Router. Across the four it used two payment methods over two blockchains, and never once asked a human to pay.
| Step | What the agent does | Service |
|---|---|---|
| 1 | Finds today's #1 technology headline | Brave |
| 2 | Writes 90s-pop-anthem lyrics about it | 2s.io |
| 3 | Turns the lyrics into a full, sung song | Suno |
| 4 | Paints a matching album cover | fal.ai |
3 Under the hood
Nevermined Catalogthe Router2 payment rails2 blockchainscapped budget
# the only ability it's given is the Router it can pay through
"Find today's #1 tech headline, write 90s-pop-anthem lyrics
about it, generate a full song and matching album cover.
Discover every service in the Nevermined Catalog and pay
for each through the Router — never ask me to pay."4 See it run
song-from-the-headlines.mp4 · EN/ES subtitles · ~70s
song.mp3 — the finished track
| Service | Step | Cost |
|---|---|---|
| Brave | today's headline | $0.035 |
| 2s.io | the lyrics | $0.0025 |
| Suno | the song | $0.105 |
| fal.ai | the album cover | $0.003 |
| Total | 4 vendors · 2 chains | ~$0.16 |
Real money — the run-it-yourself script spends ~$0.16 on live blockchains, capped at 50¢ and 10 minutes so it can't overspend. That's why this tutorial is watch-only in the browser.