FastAF

Live 402 challenge

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

{
  "docs": "https://fastaf.co/docs/#x402",
  "error": "payment_required",
  "price": {
    "usd": "0.003000",
    "asset": "USDC",
    "credits": 5,
    "network": "eip155:8453"
  },
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x05B75e13f071A09A26B50a18Ce5BD02a0755d76F",
      "amount": "3000",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://api.fastaf.co/x402/v1/search",
      "description": "Web search API for AI agents: ranked results as JSON (title, url, snippet) with positions. Supports keyword search, country and language targeting for source discovery, fact-finding and research. Provided by Web search. Price: $0.003000 USDC per successful call. Promo through 2026-11-09 inclusive; then $0.005 (manual price restoration). Prepaid credit costs are unchanged.",
      "maxAmountRequired": "3000",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.fastaf.co/x402/v1/search",
    "tags": [
      "data",
      "scraping",
      "web-data",
      "api",
      "agents"
    ],
    "docsUrl": "https://fastaf.co/apis/google-serp-api/",
    "iconUrl": "https://fastaf.co/favicon.ico",
    "website": "https://fastaf.co",
    "homepage": "https://fastaf.co",
    "mimeType": "application/json",
    "openApiUrl": "https://api.fastaf.co/openapi.json",
    "description": "Web search API for AI agents: ranked results as JSON (title, url, snippet) with positions. Supports keyword search, country and language targeting for source discovery, fact-finding and research. Provided by Web search. Price: $0.003000 USDC per successful call. Promo through 2026-11-09 inclusive; then $0.005 (manual price restoration). Prepaid credit costs are unchanged.",
    "serviceName": "FastAF"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "query": "best espresso machine for home",
            "country": "us",
            "language": "en"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "organic_results": [
              {
                "link": "https://example.com/guides/espresso-machines",
                "title": "Best espresso machines for home brewing",
                "snippet": "Compare compact espresso machines by pressure, grinder and milk-steaming features.",
                "position": 1
              }
            ],
            "search_information": {
              "query_displayed": "best espresso machine for home"
            }
          }
        },
        "docsUrl": "https://fastaf.co/apis/google-serp-api/",
        "website": "https://fastaf.co",
        "homepage": "https://fastaf.co",
        "openApiUrl": "https://api.fastaf.co/openapi.json"
      },
      "schema": {
        "type": "object",
        "title": "Web search",
        "$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"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "examples": [
                  {
                    "query": "best espresso machine for home",
                    "country": "us",
                    "language": "en"
                  }
                ],
                "required": [
                  "query"
                ],
                "properties": {
                  "cr": {
                    "type": "string",
                    "maxLength": 8192,
                    "description": "Restrict documents by country: countryFR or countryFR|countryDE. Omitted: no explicit country restriction (unlike country, which localizes the search). No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "lr": {
                    "type": "string",
                    "maxLength": 8192,
                    "description": "Document-language filter: lang_en or a pipe-separated list such as lang_en|lang_fr. Omitted: no explicit language restriction. No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "si": {
                    "type": "string",
                    "maxLength": 8192,
                    "description": "Opaque Google cached-search/knowledge-panel tab token; may override other filters except page/results. No default. No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "ibp": {
                    "type": "string",
                    "maxLength": 8192,
                    "description": "Google layout/expansion expression, e.g. gwp;0,7 for a ludocid lookup. Omitted: standard results layout. No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "tbs": {
                    "type": "string",
                    "maxLength": 8192,
                    "description": "Google filter expression, e.g. qdr:d for the past day or qdr:w for the past week. Omitted: no explicit time/advanced filter. No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "uds": {
                    "type": "string",
                    "maxLength": 8192,
                    "description": "Opaque Google results-filter token copied from a Google search URL. Omitted: no extra token filter; do not invent a token. No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "html": {
                    "type": "boolean",
                    "description": "Return raw source HTML instead of parsed JSON when true; true/false, default false. No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "lsig": {
                    "type": "string",
                    "maxLength": 8192,
                    "description": "Opaque Google local-listing signature used with a business/knowledge-panel lookup; copy from a Google URL. No default. No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "nfpr": {
                    "type": "string",
                    "maxLength": 8192,
                    "description": "Spelling correction: string 1 excludes automatically corrected queries; 0 allows them (default 0). No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "page": {
                    "type": "integer",
                    "minimum": 0,
                    "description": "Zero-based Google results page, integer 0-100; default 0. Each page is a separate request. No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "safe": {
                    "type": "string",
                    "maxLength": 8192,
                    "description": "Adult-content filter: active enables SafeSearch; off disables it (default off). No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "uule": {
                    "type": "string",
                    "maxLength": 8192,
                    "description": "Google's encoded geographic search token, copied from a Google URL. Omit for no explicit token; do not combine with location where supported. No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "kgmid": {
                    "type": "string",
                    "maxLength": 8192,
                    "description": "Google Knowledge Graph entity ID, e.g. /m/09c7w0; may override other search filters except page/results. No default. No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "query": {
                    "type": "string",
                    "examples": [
                      "best espresso machine for home"
                    ],
                    "maxLength": 8192,
                    "description": "Required Google search text; supports operators such as site:example.com and intitle:coffee. No default. No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "domain": {
                    "type": "string",
                    "maxLength": 8192,
                    "description": "Google host to search, e.g. google.com or google.co.uk; default google.com. No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "filter": {
                    "type": "string",
                    "maxLength": 8192,
                    "description": "Duplicate/omitted-result filtering: string 1 enables it (default); 0 includes similar and normally omitted results. No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "country": {
                    "type": "string",
                    "examples": [
                      "us"
                    ],
                    "maxLength": 8192,
                    "description": "Two-letter search country code, e.g. us, uk or fr; default us. Localizes results, not a scrape proxy selection. No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "ludocid": {
                    "type": "string",
                    "maxLength": 8192,
                    "description": "Google business listing CID as a decimal string, copied from a Google local result. Omitted: no specific business selected. No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "results": {
                    "type": "integer",
                    "maximum": 100,
                    "minimum": 1,
                    "description": "Maximum results retained by FastAF, integer 1-100. Omit for the full returned page. Google supplies up to 10 per page; use page for more, not a larger results value. No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "language": {
                    "type": "string",
                    "examples": [
                      "en"
                    ],
                    "maxLength": 8192,
                    "description": "Result/interface language code, e.g. en, es, fr or de; default en. Use lr, where supported, to restrict document languages. No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "location": {
                    "type": "string",
                    "maxLength": 8192,
                    "description": "City-level search origin, e.g. Austin, Texas, United States; omit for source-default location. Cannot be combined with uule. No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "mob_search": {
                    "type": "boolean",
                    "description": "Request mobile rather than desktop Google results; true/false, default false. FastAF does not add a mobile surcharge. No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "deep_scrape": {
                    "type": "boolean",
                    "description": "Fetch content from organic-result destination pages as well as the SERP; true/false, default false. Use with advance_search=false; no FastAF surcharge. No additional credits; 5 per request, or 10 with advance_search=true."
                  },
                  "advance_search": {
                    "type": "boolean",
                    "description": "Include advanced Google result features/snippets when true; true/false, default false. False: 5 credits; true: 10 credits per request."
                  }
                },
                "description": "Keyword web search with country and language targeting; query is required.",
                "additionalProperties": false
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "properties": {
                  "organic_results": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "properties": {
                        "link": {
                          "type": "string"
                        },
                        "title": {
                          "type": "string"
                        },
                        "snippet": {
                          "type": "string"
                        },
                        "position": {
                          "type": "number"
                        }
                      },
                      "additionalProperties": true
                    }
                  },
                  "search_information": {
                    "type": "object",
                    "properties": {
                      "query_displayed": {
                        "type": "string"
                      }
                    },
                    "additionalProperties": true
                  }
                },
                "description": "Google SERP JSON. organic_results contains ranked title, link and snippet fields; search_information describes the query. Other Google result blocks may also appear.",
                "additionalProperties": true
              }
            }
          },
          "docsUrl": {
            "type": "string",
            "format": "uri"
          },
          "website": {
            "type": "string",
            "format": "uri"
          },
          "homepage": {
            "type": "string",
            "format": "uri"
          },
          "openApiUrl": {
            "type": "string",
            "format": "uri"
          }
        },
        "description": "Web search API for AI agents: ranked results as JSON (title, url, snippet) with positions. Supports keyword search, country and language targeting for source discovery, fact-finding and research.",
        "x-tool-slug": "web_search"
      },
      "metadata": {
        "provider": {
          "name": "FastAF",
          "docsUrl": "https://fastaf.co/apis/google-serp-api/",
          "website": "https://fastaf.co",
          "homepage": "https://fastaf.co",
          "openApiUrl": "https://api.fastaf.co/openapi.json",
          "description": "FastAF: Web data for AI agents, pay per call in USDC via x402, no account: Google search, Maps, News, Shopping, Scholar, Jobs, AI Mode, Amazon, eBay, Walmart, Zillow, YouTube transcripts, public LinkedIn/X profiles, scraping and screenshots."
        }
      },
      "routeTemplate": "/x402/v1/serp"
    }
  },
  "how_to_pay": "Use the PAYMENT-REQUIRED header with an x402 v2 client (PAYMENT-SIGNATURE), or the JSON body with an x402 v1 client (X-PAYMENT). Settled only if the request succeeds.",
  "with_a_key": "Or create a free account at https://fastaf.co/signup: 2 free calls after you verify your email, then prepaid credits.",
  "x402Version": 1,
  "error_details": {
    "code": "payment_required",
    "message": "Payment is required for this request."
  }
}

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"
    },
    "payTo": "0x05B75e13f071A09A26B50a18Ce5BD02a0755d76F",
    "amount": "2000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "query": "best espresso machine for home",
          "country": "us",
          "language": "en"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "organic_results": [
            {
              "link": "https://example.com/guides/espresso-machines",
              "title": "Best espresso machines for home brewing",
              "snippet": "Compare compact espresso machines by pressure, grinder and milk-steaming features.",
              "position": 1
            }
          ],
          "search_information": {
            "query_displayed": "best espresso machine for home"
          }
        }
      },
      "docsUrl": "https://fastaf.co/apis/google-serp-api/",
      "website": "https://fastaf.co",
      "homepage": "https://fastaf.co",
      "openApiUrl": "https://api.fastaf.co/openapi.json"
    },
    "schema": {
      "type": "object",
      "title": "Web search",
      "$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"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "examples": [
                {
                  "query": "best espresso machine for home",
                  "country": "us",
                  "language": "en"
                }
              ],
              "required": [
                "query"
              ],
              "properties": {
                "cr": {
                  "type": "string",
                  "maxLength": 8192,
                  "description": "Restrict documents by country: countryFR or countryFR|countryDE. Omitted: no explicit country restriction (unlike country, which localizes the search)."
                },
                "lr": {
                  "type": "string",
                  "maxLength": 8192,
                  "description": "Document-language filter: lang_en or a pipe-separated list such as lang_en|lang_fr. Omitted: no explicit language restriction."
                },
                "si": {
                  "type": "string",
                  "maxLength": 8192,
                  "description": "Opaque Google cached-search/knowledge-panel tab token; may override other filters except page/results. No default."
                },
                "ibp": {
                  "type": "string",
                  "maxLength": 8192,
                  "description": "Google layout/expansion expression, e.g. gwp;0,7 for a ludocid lookup. Omitted: standard results layout."
                },
                "tbs": {
                  "type": "string",
                  "maxLength": 8192,
                  "description": "Google filter expression, e.g. qdr:d for the past day or qdr:w for the past week. Omitted: no explicit time/advanced filter."
                },
                "uds": {
                  "type": "string",
                  "maxLength": 8192,
                  "description": "Opaque Google results-filter token copied from a Google search URL. Omitted: no extra token filter; do not invent a token."
                },
                "html": {
                  "type": "boolean",
                  "description": "Return raw source HTML instead of parsed JSON when true; true/false, default false."
                },
                "lsig": {
                  "type": "string",
                  "maxLength": 8192,
                  "description": "Opaque Google local-listing signature used with a business/knowledge-panel lookup; copy from a Google URL. No default."
                },
                "nfpr": {
                  "type": "string",
                  "maxLength": 8192,
                  "description": "Spelling correction: string 1 excludes automatically corrected queries; 0 allows them (default 0)."
                },
                "page": {
                  "type": "integer",
                  "minimum": 0,
                  "description": "Zero-based Google results page, integer 0-100; default 0. Each page is a separate request."
                },
                "safe": {
                  "type": "string",
                  "maxLength": 8192,
                  "description": "Adult-content filter: active enables SafeSearch; off disables it (default off)."
                },
                "uule": {
                  "type": "string",
                  "maxLength": 8192,
                  "description": "Google's encoded geographic search token, copied from a Google URL. Omit for no explicit token; do not combine with location where supported."
                },
                "kgmid": {
                  "type": "string",
                  "maxLength": 8192,
                  "description": "Google Knowledge Graph entity ID, e.g. /m/09c7w0; may override other search filters except page/results. No default."
                },
                "query": {
                  "type": "string",
                  "examples": [
                    "best espresso machine for home"
                  ],
                  "maxLength": 8192,
                  "description": "Required Google search text; supports operators such as site:example.com and intitle:coffee. No default."
                },
                "domain": {
                  "type": "string",
                  "maxLength": 8192,
                  "description": "Google host to search, e.g. google.com or google.co.uk; default google.com."
                },
                "filter": {
                  "type": "string",
                  "maxLength": 8192,
                  "description": "Duplicate/omitted-result filtering: string 1 enables it (default); 0 includes similar and normally omitted results."
                },
                "country": {
                  "type": "string",
                  "examples": [
                    "us"
                  ],
                  "maxLength": 8192,
                  "description": "Two-letter search country code, e.g. us, uk or fr; default us. Localizes results, not a scrape proxy selection."
                },
                "ludocid": {
                  "type": "string",
                  "maxLength": 8192,
                  "description": "Google business listing CID as a decimal string, copied from a Google local result. Omitted: no specific business selected."
                },
                "results": {
                  "type": "integer",
                  "maximum": 100,
                  "minimum": 1,
                  "description": "Maximum results retained by FastAF, integer 1-100. Omit for the full returned page. Google supplies up to 10 per page; use page for more, not a larger results value."
                },
                "language": {
                  "type": "string",
                  "examples": [
                    "en"
                  ],
                  "maxLength": 8192,
                  "description": "Result/interface language code, e.g. en, es, fr or de; default en. Use lr, where supported, to restrict document languages."
                },
                "location": {
                  "type": "string",
                  "maxLength": 8192,
                  "description": "City-level search origin, e.g. Austin, Texas, United States; omit for source-default location. Cannot be combined with uule."
                },
                "mob_search": {
                  "type": "boolean",
                  "description": "Request mobile rather than desktop Google results; true/false, default false. FastAF does not add a mobile surcharge."
                },
                "deep_scrape": {
                  "type": "boolean",
                  "description": "Fetch content from organic-result destination pages as well as the SERP; true/false, default false. Use with advance_search=false; no FastAF surcharge."
                },
                "advance_search": {
                  "type": "boolean",
                  "description": "Include advanced Google result features/snippets when true; true/false, default false."
                }
              },
              "description": "Keyword web search with country and language targeting; query is required.",
              "additionalProperties": false
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "properties": {
                "organic_results": {
                  "type": "array",
                  "items": {
                    "type": "object",
                    "properties": {
                      "link": {
                        "type": "string"
                      },
                      "title": {
                        "type": "string"
                      },
                      "snippet": {
                        "type": "string"
                      },
                      "position": {
                        "type": "number"
                      }
                    },
                    "additionalProperties": true
                  }
                },
                "search_information": {
                  "type": "object",
                  "properties": {
                    "query_displayed": {
                      "type": "string"
                    }
                  },
                  "additionalProperties": true
                }
              },
              "description": "Google SERP JSON. organic_results contains ranked title, link and snippet fields; search_information describes the query. Other Google result blocks may also appear.",
              "additionalProperties": true
            }
          }
        },
        "docsUrl": {
          "type": "string",
          "format": "uri"
        },
        "website": {
          "type": "string",
          "format": "uri"
        },
        "homepage": {
          "type": "string",
          "format": "uri"
        },
        "openApiUrl": {
          "type": "string",
          "format": "uri"
        }
      },
      "description": "Web search API for AI agents: ranked results as JSON (title, url, snippet) with positions. Supports keyword search, country and language targeting for source discovery, fact-finding and research.",
      "x-tool-slug": "web_search"
    },
    "metadata": {
      "provider": {
        "name": "FastAF",
        "docsUrl": "https://fastaf.co/apis/google-serp-api/",
        "website": "https://fastaf.co",
        "homepage": "https://fastaf.co",
        "openApiUrl": "https://api.fastaf.co/openapi.json",
        "description": "FastAF: Web data for AI agents, pay per call in USDC via x402, no account: Google search, Maps, News, Shopping, Scholar, Jobs, AI Mode, Amazon, eBay, Walmart, Zillow, YouTube transcripts, public LinkedIn/X profiles, scraping and screenshots."
      }
    },
    "routeTemplate": "/x402/v1/serp"
  }
}

Provenance

Seen in the source catalog

2026-10-26 17:30Z

Last indexed by Roundhouse

2026-10-26 20:20Z

Last enriched (probe, favicon, geo)

2026-10-26 12:46Z

x402 version

2

Max timeout

300s

Liveness probe

HTTP 402