{"uid":"cap_W6NLTGxkncaK2o8LRFWBp","slug":"a2a-transaction-bridge-100c2e1d","name":"A2A Transaction Bridge","description":"Bind A2A task identity to a transaction while preserving explicit authority gaps","url":"https://phion.systems/v1/paid/trust/a2a-transaction-bridge?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input","output"],"properties":{"input":{"type":"object","required":["body"],"properties":{"body":{"type":"object","additionalProperties":true}}},"output":{"type":"object","required":["example"],"properties":{"example":{"type":"object","additionalProperties":true}}}}},"responseSchema":{"type":"json"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.004","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.004/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_3SWfIZXmjgNVSjdvRqAUX","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.004","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Binds an A2A (Agent-to-Agent) task identity to a financial transaction while preserving explicit authority gaps between agents","exampleAgentPrompt":"Bind this A2A task identity to the current transaction we just initiated, and make sure the authority gaps between the calling agent and the downstream agent are explicitly preserved in the binding record.","exampleUseCases":[{"title":"Audit trail for agent-initiated payments","prompt":"We just ran an A2A task that triggered a payment — can you bind that task's identity to the transaction record so we have a clear audit trail showing which agent authorized what, with all authority gaps marked?"},{"title":"Multi-agent workflow payment accountability","prompt":"In our multi-agent pipeline, agent A delegated a subtask to agent B which triggered a transaction — bind those task identities to the transaction now, preserving the authority gap between them so we know neither agent had full authority alone."},{"title":"Compliance-ready task-transaction linkage","prompt":"For compliance purposes, I need the task identity from our A2A job to be formally bound to the outgoing transaction, with explicit notes on where authority boundaries were respected — can you set that up?"}],"resultDescription":"Returns a binding record that links the A2A task identity to the specified transaction, including annotations describing explicit authority gaps between agents involved, confirmation of the binding, and metadata about the task-transaction relationship for audit and compliance purposes.","failureModes":["Invalid or unrecognized A2A task identity returns a binding failure with task-not-found error","Transaction reference does not exist or is already bound, resulting in conflict or rejection","Authority gap specification is malformed or inconsistent, causing validation failure","Missing required fields in the empty input schema may cause unpredictable behavior","Network or service unavailability returns a 5xx error"],"whenToPreferThis":"Use this endpoint when you need to formally associate an A2A agent task identity with a financial transaction while maintaining explicit records of authority gaps — particularly important in multi-agent systems where no single agent holds full authority and auditability of delegated actions is required. Prefer this over generic logging or state-storage endpoints when the binding must carry semantic meaning about agent authority boundaries.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T06:45:31.685Z","isFirstParty":false,"canonicalSlug":"a2a-transaction-bridge-100c2e1d"}