Roundhouse

Saylor Innovations Public Libra

Public library lookup - description, country, coordinates, founding date and website (Wikidata)

DataLiveeip155:8453Exactvia facilitator:payAI
https://saylorinnovations.com/api/libraries/lookup
LibrariesPublic-libraryReferenceWikidata
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$15.76
Verified settled volume
1,657 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
—
Calls · 30d
Upstream's own call count for this endpoint, not ours.
—
Unique payers · 30d
Never called
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa

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.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "Payment required to access this resource.",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "memo": "saylor:libraries:lookup",
        "name": "USD Coin",
        "note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
        "version": "2",
        "facilitatorOnly": true,
        "assetTransferMethod": "eip3009"
      },
      "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 120
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "memo": "saylor:libraries:lookup",
        "session": "eyJhcnRpY2xlSWQiOiJsaWJyYXJpZXM6bG9va3VwIiwicmVmZXJlbmNlIjoiM1ZDdEpTRFV0TmY0d0drck5TNGdIaDJXSENCNTFGbkNnRmFOSGhuMzJ3MWMiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjEyMDY1MzM2MH0.CrF3N__V_byyuJp52K8iVxFeJFAEuaE9kzKbdr8CnT0",
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
        "reference": "3VCtJSDUtNf4wGkrNS4gHh2WHCB51FnCgFaNHhn32w1c"
      },
      "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
      "amount": "10000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 120
    }
  ],
  "resource": {
    "url": "https://saylorinnovations.com/api/libraries/lookup?name=New%20York%20Public%20Library",
    "tags": [
      "libraries",
      "public-library",
      "reference",
      "wikidata"
    ],
    "iconUrl": "https://saylorinnovations.com/og-image.jpg",
    "mimeType": "application/json",
    "description": "Public library lookup - description, country, coordinates, founding date and website (Wikidata)",
    "serviceName": "Saylor Innovations  Public Libra"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "name": "New York Public Library"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "name": "New York Public Library",
            "found": true,
            "source": "Wikidata (CC0)",
            "location": {
              "country": "United States",
              "latitude": 40.7127753,
              "longitude": -74.0059728,
              "administrative_area": "Manhattan"
            },
            "inception": "1895-05-23",
            "description": "public library system in New York City",
            "wikidata_id": "Q219555",
            "official_website": "https://www.nypl.org"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "POST",
                  "PUT",
                  "PATCH",
                  "DELETE",
                  "HEAD"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "name"
                ],
                "properties": {
                  "name": {
                    "type": "string",
                    "description": "required public library or library-system name; 2-120 plain-text characters (query)"
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "json"
              },
              "example": {
                "type": "object",
                "required": [
                  "found",
                  "name",
                  "wikidata_id",
                  "location",
                  "source"
                ],
                "properties": {
                  "name": {
                    "type": "string",
                    "description": "Name"
                  },
                  "found": {
                    "type": "boolean",
                    "description": "True when the lookup matched a record"
                  },
                  "query": {
                    "type": "string",
                    "description": "The query as the server interpreted it"
                  },
                  "caveat": {
                    "type": "string",
                    "description": "Caveat to keep in mind when using this result"
                  },
                  "source": {
                    "type": "string",
                    "description": "Data source the values come from"
                  },
                  "location": {
                    "type": "object",
                    "description": "Place the data refers to"
                  },
                  "inception": {
                    "type": [
                      "string",
                      "null"
                    ],
                    "description": "Date the entity was founded or created"
                  },
                  "wikipedia": {
                    "type": [
                      "string",
                      "null"
                    ],
                    "description": "Wikipedia article URL"
                  },
                  "architects": {
                    "type": "array",
                    "items": {
                      "type": "object"
                    },
                    "description": "Architects"
                  },
                  "description": {
                    "type": [
                      "string",
                      "null"
                    ],
                    "description": "Short description"
                  },
                  "wikidata_id": {
                    "type": "string",
                    "description": "Wikidata identifier"
                  },
                  "other_matches": {
                    "type": "array",
                    "items": {
                      "type": "object"
                    },
                    "description": "Other candidates that matched the query, lower ranked"
                  },
                  "official_website": {
                    "type": [
                      "string",
                      "null"
                    ],
                    "description": "Official website URL"
                  },
                  "heritage_designations": {
                    "type": "array",
                    "items": {
                      "type": "object"
                    },
                    "description": "Heritage designations"
                  }
                }
              }
            }
          }
        }
      }
    },
    "method": "GET",
    "example": {
      "name": "New York Public Library",
      "found": true,
      "source": "Wikidata (CC0)",
      "location": {
        "country": "United States",
        "latitude": 40.7127753,
        "longitude": -74.0059728,
        "administrative_area": "Manhattan"
      },
      "inception": "1895-05-23",
      "description": "public library system in New York City",
      "wikidata_id": "Q219555",
      "official_website": "https://www.nypl.org"
    },
    "license": "Wikidata CC0",
    "mimeType": "application/json",
    "freshness": "current Wikidata",
    "tokenCount": null,
    "description": "Resolve a public library, research library, or library system and return its location, coordinates, founding date, heritage designations, architects, official website, Wikipedia link, Wikidata identity, and alternate matches.",
    "inputSchema": {
      "name": "required public library or library-system name; 2-120 plain-text characters (query)"
    },
    "serviceName": "Saylor Innovations — Public Library Facts & Location Lookup",
    "instructions": "STANDARD PATH (works with stock x402 clients): send payload.transaction — a base64 partially-signed Solana transaction — and we route verify/settle through an x402 facilitator that sponsors the fee and submits it. Include the chosen accepts entry as \"accepted\" so we can match terms. ALTERNATIVE PATH (no facilitator): Pick ONE entry from accepts and use the reference and session from THAT entry — each asset has its own. USDC or USDT: send an SPL transfer of the exact amount. Native SOL (asset=So11111111111111111111111111111111111111112, extra.native=true): send that many lamports with a system transfer. Either way include extra.reference as a read-only account (Solana Pay style), then retry with PAYMENT-SIGNATURE: base64({x402Version:2, payload:{session, reference}}). If your client cannot attach a reference, send payload.signature instead (USDC only). SOL amounts are quoted live and expire in 120s; stablecoins do not move. The facilitator path verifies and settles in this request. Only the alternative self-submitted Solana path needs retries while the transfer is indexed (typically 3-4 attempts over 10-20s). On that path, a 402 saying \"payment not found on-chain yet\" means keep retrying.",
    "outputSchema": {
      "type": "object",
      "required": [
        "found",
        "query",
        "name",
        "wikidata_id",
        "location",
        "heritage_designations",
        "architects",
        "source"
      ],
      "properties": {
        "name": {
          "type": "string"
        },
        "found": {
          "type": "boolean"
        },
        "query": {
          "type": "string"
        },
        "caveat": {
          "type": "string"
        },
        "source": {
          "type": "string"
        },
        "location": {
          "type": "object"
        },
        "inception": {
          "type": [
            "string",
            "null"
          ]
        },
        "wikipedia": {
          "type": [
            "string",
            "null"
          ]
        },
        "architects": {
          "type": "array",
          "items": {
            "type": "object"
          }
        },
        "description": {
          "type": [
            "string",
            "null"
          ]
        },
        "wikidata_id": {
          "type": "string"
        },
        "other_matches": {
          "type": "array",
          "items": {
            "type": "object"
          }
        },
        "official_website": {
          "type": [
            "string",
            "null"
          ]
        },
        "heritage_designations": {
          "type": "array",
          "items": {
            "type": "object"
          }
        }
      }
    },
    "noPathTemplate": true,
    "settlementModes": [
      "facilitator-transaction",
      "self-submitted-reference"
    ],
    "typicalLatencyMs": 800
  },
  "x402Version": 2
}

Accepts

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

0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0xA2A8…fc8aa. The signed payment is good for 2 minutes.

Paid to
0xA2A8…fc8aa
USD Coin contract
0x8335…02913
Payment window
2 minutes
As published
10000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "memo": "saylor:libraries:lookup",
      "name": "USD Coin",
      "version": "2",
      "facilitatorOnly": true,
      "assetTransferMethod": "eip3009"
    },
    "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 120
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "name": "New York Public Library"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "name": "New York Public Library",
          "found": true,
          "source": "Wikidata (CC0)",
          "location": {
            "country": "United States",
            "latitude": 40.7127753,
            "longitude": -74.0059728,
            "administrative_area": "Manhattan"
          },
          "inception": "1895-05-23",
          "description": "public library system in New York City",
          "wikidata_id": "Q219555",
          "official_website": "https://www.nypl.org"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET",
                "POST",
                "PUT",
                "PATCH",
                "DELETE",
                "HEAD"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "name"
              ],
              "properties": {
                "name": {
                  "type": "string",
                  "description": "required public library or library-system name; 2-120 plain-text characters (query)"
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "json"
            },
            "example": {
              "type": "object",
              "required": [
                "found",
                "name",
                "wikidata_id",
                "location",
                "source"
              ],
              "properties": {
                "name": {
                  "type": "string",
                  "description": "Name"
                },
                "found": {
                  "type": "boolean",
                  "description": "True when the lookup matched a record"
                },
                "query": {
                  "type": "string",
                  "description": "The query as the server interpreted it"
                },
                "caveat": {
                  "type": "string",
                  "description": "Caveat to keep in mind when using this result"
                },
                "source": {
                  "type": "string",
                  "description": "Data source the values come from"
                },
                "location": {
                  "type": "object",
                  "description": "Place the data refers to"
                },
                "inception": {
                  "type": [
                    "string",
                    "null"
                  ],
                  "description": "Date the entity was founded or created"
                },
                "wikipedia": {
                  "type": [
                    "string",
                    "null"
                  ],
                  "description": "Wikipedia article URL"
                },
                "architects": {
                  "type": "array",
                  "items": {
                    "type": "object"
                  },
                  "description": "Architects"
                },
                "description": {
                  "type": [
                    "string",
                    "null"
                  ],
                  "description": "Short description"
                },
                "wikidata_id": {
                  "type": "string",
                  "description": "Wikidata identifier"
                },
                "other_matches": {
                  "type": "array",
                  "items": {
                    "type": "object"
                  },
                  "description": "Other candidates that matched the query, lower ranked"
                },
                "official_website": {
                  "type": [
                    "string",
                    "null"
                  ],
                  "description": "Official website URL"
                },
                "heritage_designations": {
                  "type": "array",
                  "items": {
                    "type": "object"
                  },
                  "description": "Heritage designations"
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-10-15 17:55Z
Last indexed by Roundhouse
2026-10-26 13:46Z
Last enriched (probe, favicon, geo)
2026-10-16 03:15Z
x402 version
2
Max timeout
120s
Liveness probe
HTTP 402
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. 30 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 Saylor Innovations  Public Libra 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=Saylor%20Innovations%20%20Public%20Libra'
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://saylorinnovations.com/api/libraries/lookup, 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. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

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