{"domain":"bitcoin-mempool-congestion.hergertsynthora.com","count":1,"changes":[{"captured_at":"2026-07-20T18:07:20","card_hash":"94acdb20e19effd71e8a5bbe7b471bb194b9da3574082919ae9adab7cec11fcf","previous_card_hash":null,"diff":{"skills_added":[{"id":"bitcoin_mempool_congestion","name":"bitcoin mempool congestion","description":"Returns the live Bitcoin mempool backlog: pending transaction count, total vsize, aggregate fees and a full fee-rate histogram from mempool.space. Powers autonomous agents and agent-to-agent schedulers that time broadcasts around network congestion and estimate clearing time by fee band. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.","tags":["bitcoin","mempool","congestion","x402","synthora","m2m","a2a"],"inputModes":["application/json"],"outputModes":["application/json"]}],"skills_removed":[],"skills_changed":[],"fields_changed":[{"field":"name","before":null,"after":"Returns the live Bitcoin mempool backlog"},{"field":"description","before":null,"after":"Returns the live Bitcoin mempool backlog: pending transaction count, total vsize, aggregate fees and a full fee-rate histogram from mempool.space. Powers autonomous agents and agent-to-agent schedulers that time broadcasts around network congestion and estimate clearing time by fee band. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure."},{"field":"version","before":null,"after":"1.0.0"},{"field":"protocolVersion","before":null,"after":"0.3.0"},{"field":"url","before":null,"after":"https://bitcoin-mempool-congestion.hergertsynthora.com/service"},{"field":"preferredTransport","before":null,"after":"HTTP+JSON"}],"other_changed":true,"is_empty":false,"human_summary":"added 1 skill · name ∅ → Returns the live Bitcoin mempool backlog · description ∅ → Returns the live Bitcoin mempool backlog · version ∅ → 1.0.0 · protocolVersion ∅ → 0.3.0 · url ∅ → https://bitcoin-mempool-congestion.herge · preferredTransport ∅ → HTTP+JSON"}}]}