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api.
Regional Greenhouse Gas Initiative (RGGI) CO2 allowance auctions: auction number and date, quantity offered, Cost Containment Reserve sold, quantity sold, clearing price (USD per allowance) and total proceeds, latest first, from RGGI's public auction results table. Quarterly auctions only; secondary-market prices are not included.
Live
Last successful check: 26 Oct 2026, 07:39 UTC.
- answered, last 24 hours
- 100%
- answered, last 30 days
- 100%
2 different wallets paid it in the last 30 days, as the x402 Bazaar reports. Payments
How addrbook checks →Connect
https:x402: an unpaid request gets a 402 with the price and pay-to wallet. addrbook never pays.
Who's behind it
- Listed by
- x402 Bazaarlast seen UTC
- Wallets named
- 0xb8491f953e6860d3b5840b73c60883ff099ceafanamed by x402 Bazaar
- Listed since
Payments
- different wallets paid it, last 30 days
- 2
- paid calls, last 30 days
- 2
- last paid call (UTC)
As the x402 Bazaar reports, from payments Coinbase's facilitator settled. Read . addrbook has not counted these payments itself.
How it asks to be paid
| Network | Price | Paid in | Settled by | Pays to |
|---|---|---|---|---|
| Base | $0.002 | USDC | Per request | 0xb8491f953e6860d3b5840b73c60883ff099ceafa |
| Solana | $0.002 | USDC | Per request | J8vnmBx4pS1X7UUBTfz1yWBKiw69Dj2yRGRHDaXBRdhR |
| Arc | $0.002 | USDC | Per request | 0xa4751fcaa83c9669cfe507bb6807507729839be3 |
| Polygon | $0.002 | USDC | Per request | 0xb8491f953e6860d3b5840b73c60883ff099ceafa |
| Arbitrum | $0.002 | USDC | Per request | 0xb8491f953e6860d3b5840b73c60883ff099ceafa |
| Monad | 2000smallest units | “USDC”not a Circle contract | Per request | 0xb8491f953e6860d3b5840b73c60883ff099ceafa |
| World Chain | $0.002 | USDC | Per request | 0xb8491f953e6860d3b5840b73c60883ff099ceafa |
| Optimism | $0.002 | USDC | Per request | 0xb8491f953e6860d3b5840b73c60883ff099ceafa |
| Celo | $0.002 | USDC | Per request | 0xb8491f953e6860d3b5840b73c60883ff099ceafa |
| Stellar | 20000smallest units | A tokennot a Circle contract | Per request | GBIX2M7HNL2G2VYU5KZ446OSN55ZWHS3WBEUP4JTLS6R34VXIGTDOAFI |
| XRP Ledger | — | A tokennot a Circle contract | Per request | rDxNZCDfLxUzeMWGGwsY3sjQT8eoZCf8UJ |
| XRP Ledger | 1562smallest units | A tokennot a Circle contract | Per request | rDxNZCDfLxUzeMWGGwsY3sjQT8eoZCf8UJ |
From its own 402 answer at UTC. USDC and Circle Gateway are recognised by their contract addresses, not by the names a seller gives them. How payments are read
Its 402 answer asks to be paid at a wallet that none of its listings name.
Checks by endpoint
| Host | Protocol | State | Last checked (UTC) | Last answered (UTC) | 24 hours | 30 days | Tools |
|---|---|---|---|---|---|---|---|
| api. | x402 | Live | 100% | 100% | — |
Also listed as
Other entries that share an endpoint with this one.