{"slug":"b20-activation-check-eb8858ce","name":"B20 activation check","summary":"Is B20 live on Base mainnet? Queries the Activation Registry precompile for base.b20_asset and base.b20_stablecoin (or a custom feature id). Honest pre-launch too: reports not-activated until the registry flips.","status":"live","indexable":true,"listed_since":"2026-10-25T17:52:30.009874Z","sources":[{"source":"x402_bazaar","external_id":"https://agent402.tools/api/b20-activation-check","owner_address":"0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0","seen_at":"2026-10-26T06:00:49.479261Z","removed_at":null}],"endpoints":[{"url":"https://agent402.tools/api/b20-activation-check","host":"agent402.tools","protocol":"x402","state":"live","last_probe_at":"2026-10-25T22:09:09.046029Z","last_ok_at":"2026-10-25T22:09:09.046029Z","tools_count":null,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[{"slug":"agent402-tools-4df46169","name":"agent402.tools"}],"payment_options":[],"usage":{"source":"x402_bazaar","unique_payers_30d":2,"paid_calls_30d":6,"last_paid_at":"2026-10-20T01:58:35.354Z","reported_at":"2026-10-26T06:00:49.479261Z"},"notice":"Not affiliated with addrbook — claim or request removal."}