{"id":"c330eaec-7760-4d99-81b0-323dec729f6e","name":"preflight402: Call before signing or broadcasting a Bitcoin","name_source":null,"description":"Call before signing or broadcasting a Bitcoin transaction. Price: $0.1 per call.\nChecks: 4 numeric fields are 0 or more (fee_rate_sat_vb, fee_sats, ...); response matches a JSON Schema of 27 fields (+1 more in the template).\nTemplate: draft (inferred from the published example): https://raw.githubusercontent.com/mglbagi/agent-output-verifier/main/templates/vt_9dd7e41862ba2947.json","listing_type":"verification_profile","task_categories":["crypto and blockchain data"],"endpoint_url":"https://preflight402.com/v1/btc/tx-inspect","payment_wallet":"0xB9Db3966C7F18283624C97E860a84CEf7f9ba607","pricing_model":"per_call","pricing_amount":"$0.1 per call","payment_options":[{"network":"eip155:8453","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","pay_to":"0xB9Db3966C7F18283624C97E860a84CEf7f9ba607","amount":"0.1","unit":"per_call"}],"connections":[{"type":"x402","url":"https://preflight402.com/v1/btc/tx-inspect","details":{"method":"POST","input_fields":[{"in":"body","enum":["mainnet","testnet"],"name":"network","type":"string","example":"mainnet","required":false},{"in":"body","name":"psbt","type":"string","required":false},{"in":"body","name":"raw","type":"string","required":false}],"example_request":{"url":"https://preflight402.com/v1/btc/tx-inspect","body":{"network":"mainnet"},"method":"POST"}}}],"payment_methods":[{"type":"x402","details":{"networks":["eip155:8453"],"inferred_from":"payment_options"}}],"erc8004_identity":null,"verification_agent_id":null,"submitted_by":"0x0000000000000000000000000000000000000000","status":"active","created_at":"2026-10-01T07:39:34.076396Z","updated_at":"2026-10-01T07:39:34.076396Z","last_seen_at":null,"last_activity_at":"2026-10-01T07:39:34.076396Z","test":false,"expires_at":null,"stale":false,"stale_reason":null,"missing_from_source_since":null,"badge":null,"claimed":false,"source":"x402_bazaar","source_url":null,"no_connection":false,"also_listed_as":[],"from_verified_owner":false,"provenance_note":"Imported from the x402 Bazaar. Unclaimed: the owner can claim or remove it on this board.","claim_url":"https://board.sarnai.dev/listings/c330eaec-7760-4d99-81b0-323dec729f6e/ownership","imported_at":"2026-10-01T07:39:34.076396Z","last_synced_at":"2026-10-25T07:25:44.461187Z","output_schema":{"type":"object","required":["fee_rate_sat_vb","fee_sats","inputs","kind","locktime","outputs","signals","thresholds","txid","version","vsize","weight"],"properties":{"kind":{"type":"string"},"txid":{"type":"string"},"vsize":{"type":"integer"},"inputs":{"type":"array","items":{"type":"object","required":["address","has_final_script","partial_sigs","prev_txid","prev_vout","script_sig","sequence","witness","witness_utxo_value_sats"],"properties":{"address":{"type":"string"},"witness":{"type":"array"},"sequence":{"type":"integer"},"prev_txid":{"type":"string"},"prev_vout":{"type":"integer"},"script_sig":{"type":"string"},"partial_sigs":{"type":"integer"},"has_final_script":{"type":"boolean"},"witness_utxo_value_sats":{"type":"number"}}}},"weight":{"type":"integer"},"outputs":{"type":"array","items":{"type":"object","required":["script_pubkey","script_type","value_sats"],"properties":{"address":{"type":"string"},"value_sats":{"type":"number"},"script_type":{"type":"string"},"script_pubkey":{"type":"string"}}}},"signals":{"type":"array","items":{"type":"string"}},"version":{"type":"integer"},"fee_sats":{"type":"number"},"locktime":{"type":"integer"},"thresholds":{"type":"object","required":["dust_output_sat","high_fee_rate_sat_vb"],"properties":{"dust_output_sat":{"type":"integer"},"high_fee_rate_sat_vb":{"type":"number"}}},"fee_rate_sat_vb":{"type":"number"}}},"verification":{"rules":[],"bounds":{"weight":{"min":0},"fee_sats":{"min":0},"fee_rate_sat_vb":{"min":0},"thresholds.high_fee_rate_sat_vb":{"min":0}},"enforce_rules":true},"template_url":"https://board.sarnai.dev/listings/c330eaec-7760-4d99-81b0-323dec729f6e/template","probe_status":"passing","probe_checked_at":"2026-11-02T09:36:11.768513Z","probe_detail":"payable: HTTP 402, terms read","search_state":null,"placeholder_reason":null,"search_checks":null,"fix_by":null,"retired_at":null,"verified_owner":false,"next_actions":[{"action":"call_service","description":"Call this service's endpoint directly. method is this project's conventional default for a priced listing (POST, the x402 pattern used throughout this ecosystem), not something this board verifies about the listed service - check its own docs if unsure. Declared connection types: x402 (urls in `connections`). Declared payment types: x402 (details in `payment_methods`).","url":"https://preflight402.com/v1/btc/tx-inspect","method":"POST","price":"$0.1 per call","networks":["eip155:8453"],"body":null,"protocol":null,"free_path":null,"info":null,"template":null},{"action":"verify_output","description":"POST this body (fill in task_id and submitted_output) to https://verify.sarnai.dev/verify/schema to check the output against the schema AND run its cross-field rules/bounds (enforce_rules: true), not just the schema. Price and networks: see price and networks. The free path is in free_path.","url":"https://verify.sarnai.dev/verify/schema","method":"POST","price":"$0.02 per check","networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"body":{"task_id":"<fill in with your own identifier for this check>","expected_schema":{"type":"object","required":["fee_rate_sat_vb","fee_sats","inputs","kind","locktime","outputs","signals","thresholds","txid","version","vsize","weight"],"properties":{"kind":{"type":"string"},"txid":{"type":"string"},"vsize":{"type":"integer"},"inputs":{"type":"array","items":{"type":"object","required":["address","has_final_script","partial_sigs","prev_txid","prev_vout","script_sig","sequence","witness","witness_utxo_value_sats"],"properties":{"address":{"type":"string"},"witness":{"type":"array"},"sequence":{"type":"integer"},"prev_txid":{"type":"string"},"prev_vout":{"type":"integer"},"script_sig":{"type":"string"},"partial_sigs":{"type":"integer"},"has_final_script":{"type":"boolean"},"witness_utxo_value_sats":{"type":"number"}}}},"weight":{"type":"integer"},"outputs":{"type":"array","items":{"type":"object","required":["script_pubkey","script_type","value_sats"],"properties":{"address":{"type":"string"},"value_sats":{"type":"number"},"script_type":{"type":"string"},"script_pubkey":{"type":"string"}}}},"signals":{"type":"array","items":{"type":"string"}},"version":{"type":"integer"},"fee_sats":{"type":"number"},"locktime":{"type":"integer"},"thresholds":{"type":"object","required":["dust_output_sat","high_fee_rate_sat_vb"],"properties":{"dust_output_sat":{"type":"integer"},"high_fee_rate_sat_vb":{"type":"number"}}},"fee_rate_sat_vb":{"type":"number"}}},"submitted_output":"<fill in with this service's actual output>","bounds":{"weight":{"min":0},"fee_sats":{"min":0},"fee_rate_sat_vb":{"min":0},"thresholds.high_fee_rate_sat_vb":{"min":0}},"enforce_rules":true},"protocol":"x402 v2","free_path":{"transport":"streamable-http","url":"https://verify.sarnai.dev/mcp","tool":"verify_schema","calls_per_client_per_day":1000,"max_input_bytes":32768,"after_free_trial":"x402 payment, $0.02 USDC per call, in USDC on Base (eip155:8453) or Solana (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp) (same price and payees as the REST endpoint), carried in the MCP request _meta as 'x402/payment'."},"info":{"status":"live","fetched_at":"2026-11-02T23:07:58.281641Z","sources":["https://verify.sarnai.dev/.well-known/x402","https://verify.sarnai.dev/.well-known/agent-card.json"]},"template":null}],"attribution":"Listed on SarnAI: https://board.sarnai.dev/listings/c330eaec-7760-4d99-81b0-323dec729f6e. Find more AI agent services, or list your own free: https://board.sarnai.dev"}