{"uid":"cap_GuvhTUCcwEtHUdJT0EcYf","slug":"agent-embassy-research-paper-with-provenance-fadd68bb","name":"Agent Embassy — Research Paper with Provenance","description":"Agents pay for work and prove what happened.","url":"https://aemb.pro/v1/research/paper?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"bundle":{"type":"string","description":"Delivery tier: 'paper' ($222) or 'paper+provenance' ($444, paper plus the corpus proof pack). Defaults to 'paper'."},"paper_id":{"type":"string","description":"Catalog ID of the paper, e.g. 'the-discontinuity-20260922'. Unknown IDs are rejected"},"buyer_alias":{"type":"string","description":"Optional license display name (3-32 chars: letters, digits, . _ -). Defaults to the first 8 hex chars of the buyer wallet."},"idempotency_key":{"type":"string","description":"Idempotency key: UUID v4, client-generated, one per logical request. Replaying the same key on this tool returns the original receipt — the action is not re-run, and the first request's receipt wins even if you resend different inputs. Published example keys are rejected. Keys are scoped per tool and per payer account: a key never returns another wallet's receipt."},"prior_receipt_id":{"type":"string","description":"Optional receipt-carried tier: a prior research_paper receipt id (emb_...) for the $222 paper tier, owned by the paying wallet. When valid, buying paper+provenance costs the $222 upgrade delta instead of $444. The prior receipt's signature is verified and must belong to the payer; invalid ids are rejected with 400 before settlement. Quoted provisionally at 402 time; ownership proven at run time."}}},"responseSchema":{"type":"json","example":{"tool":"research_paper","bytes":24013,"chain":["request","authorization","action","proof","liability_boundary"],"bundle":"paper+provenance","status":"complete","account":"0x1111111111111111111111111111111111111111","paper_id":"the-discontinuity-20260922","receipt_id":"emb_pqr678","receipt_version":"embassy-receipt/2"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"222","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":"$222/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"222","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"222","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_6sG1F-l-8MF5E08xsGoju","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"222","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches a research paper along with a cryptographic provenance chain and liability boundary proof, settled via on-chain payment.","exampleAgentPrompt":"Fetch the research paper 'the-discontinuity-20260922' from Agent Embassy, pay the $222 USDC fee, and give me the full paper bundle along with the provenance chain and embassy receipt so I have proof of what happened.","exampleUseCases":[{"title":"Auditable agent research retrieval","prompt":"Retrieve the research paper 'the-discontinuity-20260922' through Agent Embassy — I need the full paper plus the provenance chain and a receipt so there's a verifiable record that my agent accessed it."},{"title":"On-chain proof of content delivery","prompt":"My agent needs to fetch a specific research paper and produce a cryptographic proof that it was delivered — use Agent Embassy to get the paper bundle with the liability boundary and receipt included."},{"title":"Automated research pipeline with payment","prompt":"As part of my research pipeline, have my agent pay for and retrieve the paper 'the-discontinuity-20260922' via Agent Embassy and store the embassy receipt and provenance chain alongside the paper content."}],"resultDescription":"Returns a JSON object containing the tool name ('research_paper'), byte size of the paper, a provenance chain array (request, authorization, action, proof, liability_boundary), a bundle description ('paper+provenance'), completion status, the agent's on-chain account address, a paper_id, a receipt_id, and a receipt_version string — giving full auditability of the transaction.","failureModes":["Insufficient USDC balance causes payment failure and no content is returned","Invalid or unknown paper_id returns an error with no bundle","On-chain authorization failure halts the action step mid-chain","Receipt generation failure may leave payment settled but proof incomplete","Network or RPC issues may cause the payment to process without a response"],"whenToPreferThis":"Choose this endpoint when your agent needs not just a research paper but a cryptographic, on-chain-verifiable proof of what happened — including authorization, delivery, and liability boundaries. It is especially suited for agentic workflows where accountability, auditability, or regulatory traceability of content retrieval matters, and where payment via USDC on-chain is acceptable or required.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-10T00:33:09.388Z","isFirstParty":false,"canonicalSlug":"agent-embassy-research-paper-with-provenance-fadd68bb"}