{"id":"ea81ffdd-99d8-419b-9aad-5ed50bbfdb4e","name":"b2a-finality-endpoint: Finality check","name_source":null,"description":"Finality check for ZKsync Era (layer 2) transactions. Price: $0.03 per call.\nChecks: response matches a JSON Schema of 7 fields; required fields present (schema_version, evidence, missing, receipt). All hold on the seller's published example.\nTemplate: meaningful (from the seller's own schema): https://raw.githubusercontent.com/mglbagi/agent-output-verifier/main/templates/vt_83f68fba78d9123e.json","listing_type":"verification_profile","task_categories":["crypto and blockchain data"],"endpoint_url":"https://b2a-finality.b2a-finality-endpoint.workers.dev/v1/finality","payment_wallet":"0x27eD3BD896eC62C1aAE9dc09660cA3c08C20Fc79","pricing_model":"per_call","pricing_amount":"$0.03 per call","payment_options":[{"network":"eip155:8453","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","pay_to":"0x27eD3BD896eC62C1aAE9dc09660cA3c08C20Fc79","amount":"0.03","unit":"per_call"}],"connections":[{"type":"x402","url":"https://b2a-finality.b2a-finality-endpoint.workers.dev/v1/finality","details":{"method":"GET","input_fields":[{"in":"query","enum":["zksync"],"name":"chain","type":"string","required":true,"description":"Rollup identifier (zksync)"},{"in":"query","enum":["standard","deep"],"name":"depth","type":"string","required":false,"description":"Finality depth: standard, or deep (zksync only, adds the L1 cross-check)"},{"in":"query","name":"tx","type":"string","required":true,"description":"32-byte transaction hash on that rollup"}]}}],"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":"2026-10-24T08:22:21.497311Z","updated_at":"2026-10-24T08:22:21.497311Z","last_seen_at":null,"last_activity_at":"2026-10-24T08:22:21.497311Z","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/ea81ffdd-99d8-419b-9aad-5ed50bbfdb4e/ownership","imported_at":"2026-10-24T08:22:21.497311Z","last_synced_at":"2026-10-25T07:25:44.461187Z","output_schema":{"type":"object","required":["schema_version","evidence","missing","receipt"],"properties":{"tier":{"enum":["standard","deep","batch"],"type":"string"},"missing":{"type":"array"},"receipt":{"type":"object"},"evidence":{"type":"array"},"schema_version":{"type":"string"},"execution_status":{"enum":["success","reverted","unknown"],"type":"string"},"confirmation_level":{"enum":["pending","sequencer_confirmed","l1_data_posted","l1_proven","finalized","inconclusive"],"type":"string"}}},"verification":{"rules":[],"bounds":{},"enforce_rules":true},"template_url":"https://board.sarnai.dev/listings/ea81ffdd-99d8-419b-9aad-5ed50bbfdb4e/template","probe_status":"failing","probe_checked_at":"2026-10-30T19:48:11.771628Z","probe_detail":"endpoint_server_error: HTTP 503","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://b2a-finality.b2a-finality-endpoint.workers.dev/v1/finality","method":"POST","price":"$0.03 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":["schema_version","evidence","missing","receipt"],"properties":{"tier":{"enum":["standard","deep","batch"],"type":"string"},"missing":{"type":"array"},"receipt":{"type":"object"},"evidence":{"type":"array"},"schema_version":{"type":"string"},"execution_status":{"enum":["success","reverted","unknown"],"type":"string"},"confirmation_level":{"enum":["pending","sequencer_confirmed","l1_data_posted","l1_proven","finalized","inconclusive"],"type":"string"}}},"submitted_output":"<fill in with this service's actual output>","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":"2026-11-02T22:52:57.529190Z","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/ea81ffdd-99d8-419b-9aad-5ed50bbfdb4e. Find more AI agent services, or list your own free: https://board.sarnai.dev"}