Saylor Innovations Law Library

Name: Saylor Innovations Law Library
Price: 0.01 USDC
Availability: InStock

U.S. case law search across federal and state court opinions (CourtListener), sortable by relevance, date or citations

SearchLiveeip155:8453Exactvia cdp

https://saylorinnovations.com/api/law/cases/search

LawLegalCase-lawUs

Calls · 30d

3↑ 11%

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 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

Last called 2026-10-20 05:21Z

—

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": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "memo": "saylor:law:cases",
        "session": "eyJhcnRpY2xlSWQiOiJsYXc6Y2FzZXMiLCJyZWZlcmVuY2UiOiI3ZnF5cUdrbTJhbTV3a0Z0VGgxWEtkeHVRdnB1Mm1lRmFCZ2tjSlF1RHJ3MiIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjozMDAwLCJleHAiOjE3OTAyOTAwNDAwMTB9.Uv0W1nuvgki51JEfRjbsKyoi7lJtvZw_Gcf3IECLYpo",
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
        "reference": "7fqyqGkm2am5wkFtTh1XKdxuQvpu2meFaBgkcJQuDrw2"
      },
      "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
      "amount": "3000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 120
    },
    {
      "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
      "extra": {
        "memo": "saylor:law:cases",
        "session": "eyJhcnRpY2xlSWQiOiJsYXc6Y2FzZXMiLCJyZWZlcmVuY2UiOiJBUG9qQVc4M2NkaWtmcnJDNjlya0NuZ2IxbkJaNlZIZlpKV2tMelJDN3FRaCIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVzOXZNRnJ6YUNFUm1KZnJGNEgyRllENEtDb05rWTExTWNDZThCZW53TllCIiwibWluQW1vdW50IjozMDAwLCJleHAiOjE3OTAyOTAwNDAwMTF9.v1wBKFiZBin0FYHRdkXKvbEStiee1vXGrSKuIV7kXEc",
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
        "reference": "APojAW83cdikfrrC69rkCngb1nBZ6VHfZJWkLzRC7qQh"
      },
      "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
      "amount": "3000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 120
    },
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "memo": "saylor:law:cases",
        "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": "0xf8A376eBF123D7252cd7b66bcD77A727a4def22f",
      "amount": "3000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 120
    },
    {
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "memo": "saylor:law:cases",
        "name": "USD Coin",
        "note": "Polygon 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": "0xf8A376eBF123D7252cd7b66bcD77A727a4def22f",
      "amount": "3000",
      "scheme": "exact",
      "network": "eip155:137",
      "maxTimeoutSeconds": 120
    },
    {
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "memo": "saylor:law:cases",
        "name": "USD Coin",
        "note": "Arbitrum 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": "0xf8A376eBF123D7252cd7b66bcD77A727a4def22f",
      "amount": "3000",
      "scheme": "exact",
      "network": "eip155:42161",
      "maxTimeoutSeconds": 120
    },
    {
      "asset": "So11111111111111111111111111111111111111112",
      "extra": {
        "memo": "saylor:law:cases",
        "note": "Native SOL: send lamports with a system transfer, not an SPL transfer. Price is quoted live and this quote expires in 120s.",
        "native": true,
        "session": "eyJhcnRpY2xlSWQiOiJsYXc6Y2FzZXMiLCJyZWZlcmVuY2UiOiI4OHBaSkRWMTRQUXpxVlcxb0hGV1ROc0pWeThYeXZjS1NScnNjMVluWHlvcSIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6bnVsbCwibWluQW1vdW50IjoyNTAyMSwiZXhwIjoxNzkwMjkwMDQwMDcyfQ.yOZGwpKbYYpYO5gIkXPjZENeV3Boiwp7qX5y0yYPJ8A",
        "reference": "88pZJDV14PQzqVW1oHFWTNsJVy8XyvcKSRrsc1YnXyoq",
        "solUsdPrice": 116.3,
        "quotedLamports": "25795"
      },
      "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
      "amount": "25021",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 120
    }
  ],
  "resource": {
    "url": "https://saylorinnovations.com/api/law/cases/search?q=qualified%20immunity%20excessive%20force",
    "tags": [
      "law",
      "legal",
      "case-law",
      "us"
    ],
    "iconUrl": "https://saylorinnovations.com/og-image.jpg",
    "mimeType": "application/json",
    "description": "Case Law Search (U.S. federal + state courts) — Legal",
    "serviceName": "Saylor Innovations Law Library"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "q": "qualified immunity excessive force"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "cases": [
              {
                "url": "https://www.courtlistener.com/opinion/112262/graham-v-connor/",
                "court": "Supreme Court of the United States",
                "snippet": "All claims that law enforcement officers have used excessive force...",
                "cited_by": 9800,
                "court_id": "scotus",
                "case_name": "Graham v. Connor",
                "citations": [
                  "490 U.S. 386"
                ],
                "date_filed": "1989-05-15"
              }
            ],
            "count": 1,
            "order": "relevance",
            "query": "qualified immunity excessive force",
            "source": "CourtListener (Free Law Project)",
            "total_matches": 12450
          }
        }
      },
      "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",
                "properties": {
                  "q": {
                    "type": "string",
                    "description": "search text; quotes and AND/OR allowed (query)"
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "json"
              },
              "example": {
                "type": "object",
                "required": [
                  "query",
                  "cases"
                ],
                "properties": {
                  "cases": {
                    "type": "array",
                    "items": {
                      "type": "object"
                    }
                  },
                  "query": {
                    "type": "string"
                  },
                  "total_matches": {
                    "type": [
                      "number",
                      "null"
                    ]
                  }
                }
              }
            }
          }
        }
      }
    },
    "method": "GET",
    "example": {
      "cases": [
        {
          "url": "https://www.courtlistener.com/opinion/112262/graham-v-connor/",
          "court": "Supreme Court of the United States",
          "snippet": "All claims that law enforcement officers have used excessive force...",
          "cited_by": 9800,
          "court_id": "scotus",
          "case_name": "Graham v. Connor",
          "citations": [
            "490 U.S. 386"
          ],
          "date_filed": "1989-05-15"
        }
      ],
      "count": 1,
      "order": "relevance",
      "query": "qualified immunity excessive force",
      "source": "CourtListener (Free Law Project)",
      "total_matches": 12450
    },
    "license": "U.S. government works: public domain; case data: CourtListener",
    "mimeType": "application/json",
    "freshness": "live",
    "freeSample": "https://saylorinnovations.com/api/law/sample",
    "tokenCount": null,
    "inputSchema": {
      "q": "search text; quotes and AND/OR allowed (query)",
      "after": "optional filed on/after YYYY-MM-DD (query)",
      "court": "optional CourtListener court ids, comma list, e.g. scotus,ca9,nysd (query)",
      "limit": "optional 1-20, default 10 (query)",
      "order": "optional relevance | newest | oldest | cited (query)",
      "before": "optional filed on/before YYYY-MM-DD (query)"
    },
    "serviceName": "Saylor Innovations Law Library",
    "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": [
        "query",
        "cases"
      ],
      "properties": {
        "cases": {
          "type": "array",
          "items": {
            "type": "object"
          }
        },
        "query": {
          "type": "string"
        },
        "total_matches": {
          "type": [
            "number",
            "null"
          ]
        }
      }
    },
    "noPathTemplate": true,
    "settlementModes": [
      "facilitator-transaction",
      "self-submitted-reference"
    ],
    "typicalLatencyMs": 1500
  },
  "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

10000units

on Polygon · exact scheme