Roundhouse AI

Academic Evidence Pack

Find 3-10 scholarly candidates for a question or topic. Returns DOI/OpenAlex IDs, authors, year, venue, source URLs, citation context, open-access location, and known retraction/correction warnings. JSON only. Does not claim that a paper proves a statement.

SearchLiveeip155:8453Exactvia cdp
https://aep-api.fly.dev/v1/evidence-pack
ResearchAcademicCitationsEvidenceIntegrity
Calls · 30d
2↑ 7.7%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 20 snapshots so far.
$0.03
Verified settled volume
1 settlements proven x402 by their on-chain EIP-3009 marker.
$0.030
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-11 10:08Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x3bc7011b2ad12c89e768e27c6c27b6548bfc53f5

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.03USDC≈ $0.03 USD
on Base · exact scheme

Pay 0.03 USDC on Base to 0x3bc7…c53f5. The signed payment is good for 1 minute.

Paid to
0x3bc7…c53f5
USD Coin contract
0x8335…02913
Payment window
1 minute
As published
30000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x3bc7011b2ad12c89e768e27c6c27b6548bfc53f5",
    "amount": "30000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "limit": 5,
          "query": "Does retrieval-augmented generation reduce hallucinations?",
          "from_year": 2022,
          "open_access_only": false,
          "exclude_known_retracted": false
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "stats": {
            "cache": "miss",
            "latency_ms": 2140,
            "duplicates_removed": 1,
            "filtered_retracted": 0,
            "candidates_retrieved": 15
          },
          "papers": [
            {
              "type": "article",
              "year": 2024,
              "title": "…",
              "venue": "…",
              "access": {
                "is_oa": true,
                "source": "openalex",
                "license": "cc-by",
                "best_url": "https://…",
                "confidence": "reported",
                "retrieved_at": "…"
              },
              "authors": [
                {
                  "name": "…",
                  "orcid": null
                }
              ],
              "integrity": {
                "note": "No update records found on checked sources. This is not proof of validity.",
                "status": "none_found",
                "updates": [],
                "sources_checked": [
                  "openalex",
                  "crossref"
                ]
              },
              "relevance": {
                "rank": 1,
                "score": 0.87,
                "reason": "provider relevance; DOI; complete metadata; recent"
              },
              "provenance": {
                "title": {
                  "source": "openalex",
                  "retrieved_at": "…"
                }
              },
              "identifiers": {
                "doi": "10.xxxx/…",
                "openalex": "W…"
              },
              "source_urls": [
                "https://doi.org/10.xxxx/…",
                "https://openalex.org/W…"
              ],
              "impact_context": {
                "note": "Citation count is impact context from one provider, not a quality score.",
                "source": "openalex",
                "retrieved_at": "…",
                "citation_count": 42
              }
            }
          ],
          "request": {
            "id": "req_…",
            "filters": {
              "limit": 5,
              "to_year": null,
              "from_year": 2022,
              "open_access_only": false,
              "exclude_known_retracted": false
            },
            "price_usd": "0.03",
            "retrieved_at": "2026-09-01T12:00:00.000Z",
            "normalized_query": "retrieval-augmented generation reduce hallucinations"
          },
          "warnings": [
            "Candidate evidence only; relevance and citation count do not establish truth or quality. A missing integrity warning does not prove a paper is sound."
          ],
          "partial_failures": []
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "query"
              ],
              "properties": {
                "limit": {
                  "type": "integer",
                  "default": 5,
                  "maximum": 10,
                  "minimum": 3
                },
                "query": {
                  "type": "string",
                  "maxLength": 500,
                  "minLength": 8,
                  "description": "Question, claim, or research topic."
                },
                "fields": {
                  "type": "array",
                  "items": {
                    "enum": [
                      "papers",
                      "relevance",
                      "impact_context",
                      "access",
                      "integrity",
                      "provenance"
                    ],
                    "type": "string"
                  },
                  "description": "Optional response minimization."
                },
                "to_year": {
                  "type": "integer"
                },
                "from_year": {
                  "type": "integer"
                },
                "open_access_only": {
                  "type": "boolean",
                  "default": false
                },
                "exclude_known_retracted": {
                  "type": "boolean",
                  "default": false,
                  "description": "Default keeps retracted records but marks them; true filters them."
                }
              },
              "additionalProperties": false
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-11 10:08Z
Last indexed by Roundhouse
2026-09-24 21:00Z
Last enriched (probe, favicon, geo)
2026-09-12 14:15Z
x402 version
2
Max timeout
60s
Liveness probe
HTTP 404
Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 20 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service Academic Evidence Pack and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Academic%20Evidence%20Pack'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://aep-api.fly.dev/v1/evidence-pack, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.