{"id":"661e93c9-d73e-4af6-8f06-c1950a5a217c","name":"halowerk: Checks vouchers of a payment channel (audit)","name_source":null,"description":"Checks vouchers of a payment channel by computation only - nothing is ever claimed, redeemed or refunded. Signatures are verified cryptographically against the address each voucher claims to be signed by, in EIP-712 form when the typed data is supplied, otherwise as a plain message signature. Double spending is the expensive case and is checked in full: every voucher id occurring more than once is reported with all its occurrences and whether the duplicates agree on the amount. Sums are added up","listing_type":"offering","task_categories":["research/search"],"endpoint_url":"https://x402.halowerk.com/channel/audit","payment_wallet":"0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E","pricing_model":"per_call","pricing_amount":"$0.006 per call","payment_options":[{"network":"eip155:8453","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","pay_to":"0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E","amount":"0.006","unit":"per_call"}],"connections":[{"type":"x402","url":"https://x402.halowerk.com/channel/audit","details":{"method":"POST","input_fields":[{"in":"body","name":"chain","type":"string","required":false,"description":"Optional chain, needed only to read the on-chain state, as CAIP-2 such as eip155:8453."},{"in":"body","name":"channel_contract","type":"string","required":false,"description":"Optional channel contract address."},{"in":"body","name":"channel_id","type":"string","required":false,"description":"Optional channel identifier as bytes32."},{"in":"body","name":"deposited","type":"string","required":false,"description":"Optional deposit in the smallest unit, used when the contract cannot be read."},{"in":"body","name":"vouchers","type":"array","required":true,"description":"The vouchers to audit."}]}}],"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":"2026-10-06T14:00:37.487856Z","updated_at":"2026-10-06T14:00:37.487856Z","last_seen_at":null,"last_activity_at":"2026-10-06T14:00:37.487856Z","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/661e93c9-d73e-4af6-8f06-c1950a5a217c/ownership","imported_at":"2026-10-06T14:00:37.487856Z","last_synced_at":"2026-10-31T20:23:24.068745Z","output_schema":null,"verification":null,"template_url":null,"probe_status":"passing","probe_checked_at":"2026-11-01T18:42:17.288471Z","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://x402.halowerk.com/channel/audit","method":"POST","price":"$0.006 per call","networks":["eip155:8453"],"body":null,"protocol":null,"free_path":null,"info":null,"template":null}],"attribution":"Listed on SarnAI: https://board.sarnai.dev/listings/661e93c9-d73e-4af6-8f06-c1950a5a217c. Find more AI agent services, or list your own free: https://board.sarnai.dev"}