grant-search.46-224-157-88.sslip.io

Live 402 challenge

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

{
  "help": {
    "mcp": "https://grant-search.46-224-157-88.sslip.io/mcp",
    "bulk": {
      "note": "Buy one complete data slice instead of many paged searches. The free catalog gives the price, the row count, the source date, and the licence of each slice.",
      "catalog": "https://grant-search.46-224-157-88.sslip.io/v1/snapshots"
    },
    "docs": "https://grant-search.46-224-157-88.sslip.io/llms.txt",
    "client": {
      "note": "We serve x402 protocol version 2. Use @x402/fetch version 2 or later. The unscoped x402-fetch 1.x is a version-1 client. It does not work here.",
      "python": "pip install x402  # then x402.http.clients.wrapHttpxWithPayment",
      "example": "import { wrapFetchWithPaymentFromConfig } from \"@x402/fetch\";\nimport { ExactEvmScheme } from \"@x402/evm\";\nimport { privateKeyToAccount } from \"viem/accounts\";\nconst account = privateKeyToAccount(\"0xYOURKEY\");\nconst pay = wrapFetchWithPaymentFromConfig(fetch, {\n  schemes: [{ network: \"eip155:8453\", client: new ExactEvmScheme(account) }],\n});\nconst res = await pay(\"https://grant-search.46-224-157-88.sslip.io/v1/search-metered\", { method: \"GET\" });",
      "install": "npm i @x402/fetch @x402/evm viem",
      "network": "eip155:8453"
    },
    "contact": "kramerhans2570@agentcard.email",
    "how_to_pay": "Send the Payment-Signature header with the x402 payment payload.",
    "free_routes": [
      "https://grant-search.46-224-157-88.sslip.io/health",
      "https://grant-search.46-224-157-88.sslip.io/healthz",
      "https://grant-search.46-224-157-88.sslip.io/llms.txt",
      "https://grant-search.46-224-157-88.sslip.io/openapi.json",
      "https://grant-search.46-224-157-88.sslip.io/v1/coverage",
      "https://grant-search.46-224-157-88.sslip.io/v1/snapshots"
    ]
  },
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2",
        "facilitatorAddress": "0xa32cCda98ba7529705a059Bd2d213Da8de10d101",
        "assetTransferMethod": "permit2"
      },
      "payTo": "0x276efA09388fB1578A6c415B8F90D26fdfCe0CF2",
      "amount": "20000",
      "scheme": "upto",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://grant-search.46-224-157-88.sslip.io/v1/search-metered",
      "description": "Search current U.S. federal grants with query, agency, statuses, closing_within_days, minimum_award_ceiling, and a limit from 1 to 10. Receive the grant fields from /v1/search plus usage payment fields. x402 upto authorizes limit times $0.002 and settles $0.002 per returned record.",
      "outputSchema": {
        "type": "object",
        "required": [
          "query",
          "source_hit_count",
          "candidates_evaluated",
          "result_count",
          "partial_results",
          "retrieved_at",
          "source",
          "source_api",
          "results",
          "usage"
        ]
      },
      "maxAmountRequired": "20000",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://grant-search.46-224-157-88.sslip.io/v1/search-metered",
    "mimeType": "application/json",
    "description": "Search current U.S. federal grants with query, agency, statuses, closing_within_days, minimum_award_ceiling, and a limit from 1 to 10. Receive the grant fields from /v1/search plus usage payment fields. x402 upto authorizes limit times $0.002 and settles $0.002 per returned record.",
    "serviceName": "Federal Grant Search API"
  },
  "extensions": {
    "eip2612GasSponsoring": {
      "info": {
        "version": "1",
        "description": "The facilitator accepts EIP-2612 gasless Permit to Permit2 canonical contract."
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "from",
          "asset",
          "spender",
          "amount",
          "nonce",
          "deadline",
          "signature",
          "version"
        ],
        "properties": {
          "from": {
            "type": "string",
            "pattern": "^0x[a-fA-F0-9]{40}$",
            "description": "The address of the sender."
          },
          "asset": {
            "type": "string",
            "pattern": "^0x[a-fA-F0-9]{40}$",
            "description": "The address of the ERC-20 token contract."
          },
          "nonce": {
            "type": "string",
            "pattern": "^[0-9]+$",
            "description": "The current EIP-2612 nonce of the sender."
          },
          "amount": {
            "type": "string",
            "pattern": "^[0-9]+$",
            "description": "The amount to approve (uint256)."
          },
          "spender": {
            "type": "string",
            "pattern": "^0x[a-fA-F0-9]{40}$",
            "description": "The address of the spender (Canonical Permit2)."
          },
          "version": {
            "type": "string",
            "pattern": "^[0-9]+(\\.[0-9]+)*$",
            "description": "Schema version identifier."
          },
          "deadline": {
            "type": "string",
            "pattern": "^[0-9]+$",
            "description": "The timestamp at which the signature expires."
          },
          "signature": {
            "type": "string",
            "pattern": "^0x[a-fA-F0-9]+$",
            "description": "The 65-byte concatenated signature (r, s, v) as a hex string."
          }
        }
      }
    }
  },
  "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.

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "facilitatorAddress": "0x59B7Ebc67a3d627FABAF06768c818638452Ae704",
      "assetTransferMethod": "permit2"
    },
    "payTo": "0x276efA09388fB1578A6c415B8F90D26fdfCe0CF2",
    "scheme": "upto",
    "network": "eip155:8453",
    "outputSchema": {
      "type": "object",
      "required": [
        "query",
        "source_hit_count",
        "candidates_evaluated",
        "result_count",
        "partial_results",
        "retrieved_at",
        "source",
        "source_api",
        "results",
        "usage"
      ]
    },
    "maxAmountRequired": "20000"
  }
]

Provenance

Seen in the source catalog

—

Last indexed by Roundhouse

2026-09-19 14:15Z

Last enriched (probe, favicon, geo)

2026-09-19 14:45Z

x402 version

2

Max timeout

—

Liveness probe

HTTP 402