Watt
POST https://watt.area21.io/v1/chat/completions
Listed in Coinbase x402 Bazaar
OpenAI-compatible chat completions: Qwen3.5 4B, Qwen3 1.7B and 0.6B on Watt's own fleet. Pay per call in USDC; the price is the messages' tokens plus max_tokens, estimated before it is served.
Warnings
Price mismatch The live price differs from the catalogue listing.
Other endpoints from watt.area21.io
The same service's other paid functions that Hagglyai tracks, each with its own price. Functions outside Hagglyai's categories are not listed.
| Endpoint | Category | Price per call |
|---|---|---|
| GET /v1/chat/completions | LLM inference | $0.001 |
| GET /v1/embeddings | LLM inference | $0.001 |
| POST /v1/embeddings | LLM inference | $0.001 |
How to buy
This endpoint takes pay-per-call payments over x402. Call it once without paying to see its live price; any x402 client then pays and retries automatically.
curl -i -X POST "https://watt.area21.io/v1/chat/completions"
# HTTP/1.1 402 Payment Required: price, asset and payTo are in the responseEstimated calls per day
Paid calls to watt.area21.io's tracked endpoints each day, estimated from the 30-day totals the x402 catalogues report. Each bar is the change in that 30-day total since the day before, plus the calls that left the 30-day window (taken as an average day). It is an estimate: Hagglyai does not measure or pay for these calls.
No usage reported for any of 4 tracked endpoints. Unknown usage is left out, not counted as zero.
Compared with other providers
Coverage matters: a provider whose endpoints report more of their usage can rank higher.
| # | Provider | Reported 30-day calls | Coverage |
|---|---|---|---|
| 1 | blockrun.ai | 94,043 | 30 of 36 endpoints |
| 2 | x402.orthogonal.com | 5,257 | 191 of 252 endpoints |
| 3 | api.gondola-ai.com | 4,424 | 1 of 3 endpoints |
| 4 | agent402.tools | 3,668 | 145 of 229 endpoints |
| 5 | api.surplusintelligence.ai | 1,487 | 1 of 2 endpoints |
| 6 | api.losbeto.xyz | 1,370 | 21 of 108 endpoints |
| 7 | vaaya.ai | 1,136 | 36 of 71 endpoints |
| 8 | api.strale.io | 575 | 33 of 36 endpoints |