2s.io

payment-readyonline

payment-ready until 2026-11-16

Keyless pay-per-call API for AI agents: 316 endpoints across 95+ groups.

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2s.io ↗

Call it x402 v2

x402 v2

Base URL: https://2s.io
Payment: x402 v2, header channel

$ curl -i 'https://2s.io/api/geo/ip'

An unpaid request returns HTTP 402 with the payment terms. Sign a payment authorization, then retry with the PAYMENT-SIGNATURE header.

Endpoints 6 paid routes on 2s.io

GET/api/geo/ipBase+Sol$0.0025since 06-25

GET/api/law/case-searchBase+Sol$0.009since 06-25

GET/api/medical/icd10Base+Sol$0.0025since 06-25

GET/api/patents/searchBase+Sol$0.0045since 06-25

GET/api/vehicle/vin-decodeBase+Sol$0.006since 06-25

GET/api/wikipedia/summaryBase+Sol$0.0025since 06-25

Prices as captured in the 402 response: median $0.0035 across the 6 endpoints.

Example 402 response

Endpoints and prices

Current paid endpoints; minimum quoted prices in USD where available; first capture dates in UTC
Method	Path	Description	Price	Network	Asset	402 channel	Captured
GET	/api/geo/ip	Geolocate a single IPv4 or IPv6 address. Returns country (name + ISO code), region (name + code), city, ZIP, lat/lon, timezone, ISP, organization, and AS number + name. For bulk lookups (up to 100 IPs in one call) use /api/ipinfo/bulk instead. Lat/lon precision is city-level, not GPS.	$0.0025	Base+Sol	USDC	header	since 06-25
GET	/api/law/case-search	Search US court opinions (SCOTUS, federal circuits, state appellate/supreme · ~9M opinions). Query by free-text (party names, keywords, docket #, citation). Filter by court slug (e.g., "scotus", "ca9", "nysupct"), filing date range, and order (relevance/dateFiled-desc/dateFiled-asc/citeCount-desc). Returns clusterId, caseName, court, year, docket, reporter citations, citationCount, snippet, canonical URL. Discovery-side complement to case-verify. Backed by CourtListener (Free Law Project); underlying opinions are public domain.	$0.009	Base+Sol	USDC	header	since 06-25
GET	/api/medical/icd10	Verify and search ICD-10-CM diagnosis codes against the official US code set (FY2026, ~98k entries). Pass code (with or without the dot, e.g. E11.9 or E119) to confirm the code exists and list its more-specific child codes, or q to keyword-search code descriptions (e.g. "type 2 diabetes neuropathy"). Optional billable_only=true restricts results to codes valid for claim submission; limit caps results (1-50, default 10). Returns a verified flag, the exact match if any, and matched codes with billable status plus short and long descriptions. Data: CMS/NCHS ICD-10-CM (public domain), refreshed each US fiscal year. Use to confirm diagnosis codes are real and current before placing them in claims, prior authorizations, or clinical documents.	$0.0025	Base+Sol	USDC	header	since 06-25
GET	/api/patents/search	Search US patent applications and grants via the USPTO Open Data Portal. Query: q (required, 2+ chars), yearFrom / yearTo (optional filing-year bounds), applicationType (optional: Utility\|Design\|Plant\|Reissue), limit (1-100, default 10), offset (0-based, default 0). Returns { total, returned, offset, limit, hits[{ applicationNumber, title, applicationType, firstInventor, inventors[], applicants[], filingDate, effectiveFilingDate, status:{ code, description, updatedAt }, cpcSymbols[], uspcSymbol, url }] }. URLs link to USPTO Patent Center for the public file wrapper.	$0.0045	Base+Sol	USDC	header	since 06-25
GET	/api/vehicle/vin-decode	Decode a 17-character VIN to manufacturer-supplied vehicle metadata via NHTSA's vPIC database. Returns identity (year, make, model, trim, series, body class, manufacturer), assembly plant (city, state, country), engine (cylinders, displacement, HP, fuel type, configuration, engine model), transmission (style, speeds), and body/weight specs. Curated to the ~30 fields agents actually use from vPIC's ~140-field response. Backed by NHTSA.gov; data is public-domain US government records.	$0.006	Base+Sol	USDC	header	since 06-25
GET	/api/wikipedia/summary	Fetch a Wikipedia article summary in any of 30 supported languages. Returns title, displayTitle, lang, pageId, description, extract (plain text), extractHtml, lead image, canonical URLs, last-modified timestamp, word count, license, and an attribution string. Backed by https://<lang>.wikipedia.org/api/rest_v1/page/summary. Content is CC BY-SA 4.0 with attribution provided.	$0.0025	Base+Sol	USDC	header	since 06-25

Payment evidence

402 payload captured at 2026-09-26 12:25:19 UTC. Check evidence JSON · Measurement methodology.

{
  "error": "PAYMENT-SIGNATURE required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
      "amount": "2500",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 60
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "name": "USDC",
        "version": "1",
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
      "amount": "2500",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://2s.io/api/medical/icd10",
    "tags": [
      "public-records",
      "identifiers",
      "ai-agents",
      "us-gov-data",
      "x402",
      "upto-billing",
      "ai-gateway",
      "agent-infrastructure"
    ],
    "iconUrl": "https://2s.io/icon-512.png",
    "mimeType": "application/json",
    "description": "Verify and search ICD-10-CM diagnosis codes against the official US code set (FY2026, ~98k entries). Pass code (with or without the dot, e.g. E11.9 or E119) to confirm the code exists and list its more-specific child codes, or q to keyword-search code descriptions (e.g. \"type 2 diabetes neuropathy\"). Optional billable_only=true restricts results to codes valid for claim submission; limit caps results (1-50, default 10). Returns a verified flag, the exact match if any, and matched codes with billable status plus short and long descriptions. Data: CMS/NCHS ICD-10-CM (public domain), refreshed each US fiscal year. Use to confirm diagnosis codes are real and current before placing them in claims, prior authorizations, or clinical documents.",
    "serviceName": "2s"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "q": "xxx",
            "code": "xxx",
            "limit": 1,
            "billable_only": false
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "queryParams"
            ],
            "properties": {
              "type": {
                "const": "http"
              },
              "method": {
                "const": "GET"
              },
              "queryParams": {
                "type": "object",
                "properties": {
                  "q": {
                    "type": "string",
                    "maxLength": 120,
                    "minLength": 3,
                    "description": "Keyword search over official code descriptions (e.g. \"type 2 diabetes neuropathy\"). Every word must match. Provide either code or q, not both."
                  },
                  "code": {
                    "type": "string",
                    "maxLength": 9,
                    "minLength": 3,
                    "description": "ICD-10-CM code to verify, with or without the dot (e.g. E11.9 or E119). Returns the exact match plus more-specific child codes. Provide either code or q, not both."
                  },
                  "limit": {
                    "type": "integer",
                    "maximum": 50,
                    "minimum": 1,
                    "description": "Maximum codes returned (1-50, default 10)."
                  },
                  "billable_only": {
                    "type": "boolean",
                    "description": "When true, only return codes valid for claim submission (excludes category headers)."
                  }
                },
                "additionalProperties": false
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Other captured 402 responses (5)

Captured payload 2 of 6

{
  "error": "PAYMENT-SIGNATURE required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
      "amount": "9000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 60
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "name": "USDC",
        "version": "1",
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
      "amount": "9000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://2s.io/api/law/case-search",
    "tags": [
      "public-records",
      "identifiers",
      "ai-agents",
      "us-gov-data",
      "x402",
      "upto-billing",
      "ai-gateway",
      "agent-infrastructure"
    ],
    "iconUrl": "https://2s.io/icon-512.png",
    "mimeType": "application/json",
    "description": "Search US court opinions (SCOTUS, federal circuits, state appellate/supreme — ~9M opinions). Query by free-text (party names, keywords, docket #, citation). Filter by court slug (e.g., \"scotus\", \"ca9\", \"nysupct\"), filing date range, and order (relevance/dateFiled-desc/dateFiled-asc/citeCount-desc). Returns clusterId, caseName, court, year, docket, reporter citations, citationCount, snippet, canonical URL. Discovery-side complement to case-verify. Backed by CourtListener (Free Law Project); underlying opinions are public domain.",
    "serviceName": "2s"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "q": "xx",
            "court": "example",
            "limit": 10,
            "order": "relevance",
            "filedAfter": "2024-01-01",
            "filedBefore": "2024-01-01"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "queryParams"
            ],
            "properties": {
              "type": {
                "const": "http"
              },
              "method": {
                "const": "GET"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "q"
                ],
                "properties": {
                  "q": {
                    "type": "string",
                    "maxLength": 500,
                    "minLength": 2
                  },
                  "court": {
                    "type": "string"
                  },
                  "limit": {
                    "type": "integer",
                    "default": 10,
                    "maximum": 20,
                    "minimum": 1
                  },
                  "order": {
                    "enum": [
                      "relevance",
                      "dateFiled-desc",
                      "dateFiled-asc",
                      "citeCount-desc"
                    ],
                    "type": "string"
                  },
                  "filedAfter": {
                    "type": "string"
                  },
                  "filedBefore": {
                    "type": "string"
                  }
                },
                "additionalProperties": false
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 3 of 6

{
  "error": "PAYMENT-SIGNATURE required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
      "amount": "4500",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 60
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "name": "USDC",
        "version": "1",
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
      "amount": "4500",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://2s.io/api/patents/search",
    "tags": [
      "public-records",
      "identifiers",
      "ai-agents",
      "us-gov-data",
      "x402",
      "upto-billing",
      "ai-gateway",
      "agent-infrastructure"
    ],
    "iconUrl": "https://2s.io/icon-512.png",
    "mimeType": "application/json",
    "description": "Search US patent applications and grants via the USPTO Open Data Portal. Query: q (required, 2+ chars), yearFrom / yearTo (optional filing-year bounds), applicationType (optional: Utility|Design|Plant|Reissue), limit (1-100, default 10), offset (0-based, default 0). Returns { total, returned, offset, limit, hits[{ applicationNumber, title, applicationType, firstInventor, inventors[], applicants[], filingDate, effectiveFilingDate, status:{ code, description, updatedAt }, cpcSymbols[], uspcSymbol, url }] }. URLs link to USPTO Patent Center for the public file wrapper.",
    "serviceName": "2s"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "q": "neural network",
            "limit": 5
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "queryParams"
            ],
            "properties": {
              "type": {
                "const": "http"
              },
              "method": {
                "const": "GET"
              },
              "queryParams": {
                "required": [
                  "q"
                ],
                "properties": {
                  "q": {
                    "type": "string",
                    "description": "Free-text search across patent titles and abstracts."
                  },
                  "limit": {
                    "type": "integer",
                    "description": "1-100, default 10."
                  },
                  "offset": {
                    "type": "integer",
                    "description": "0-based page offset."
                  },
                  "yearTo": {
                    "type": "integer",
                    "description": "Latest filing year (inclusive)."
                  },
                  "yearFrom": {
                    "type": "integer",
                    "description": "Earliest filing year (inclusive)."
                  },
                  "applicationType": {
                    "type": "string",
                    "description": "Utility | Design | Plant | Reissue."
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 4 of 6

{
  "error": "PAYMENT-SIGNATURE required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
      "amount": "6000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 60
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "name": "USDC",
        "version": "1",
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
      "amount": "6000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://2s.io/api/vehicle/vin-decode",
    "tags": [
      "public-records",
      "identifiers",
      "ai-agents",
      "us-gov-data",
      "x402",
      "upto-billing",
      "ai-gateway",
      "agent-infrastructure"
    ],
    "iconUrl": "https://2s.io/icon-512.png",
    "mimeType": "application/json",
    "description": "Decode a 17-character VIN to manufacturer-supplied vehicle metadata via NHTSA's vPIC database. Returns identity (year, make, model, trim, series, body class, manufacturer), assembly plant (city, state, country), engine (cylinders, displacement, HP, fuel type, configuration, engine model), transmission (style, speeds), and body/weight specs. Curated to the ~30 fields agents actually use from vPIC's ~140-field response. Backed by NHTSA.gov; data is public-domain US government records.",
    "serviceName": "2s"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "vin": "xxxxxxxxxxxxxxxxx",
            "modelYear": 1949
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "queryParams"
            ],
            "properties": {
              "type": {
                "const": "http"
              },
              "method": {
                "const": "GET"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "vin"
                ],
                "properties": {
                  "vin": {
                    "type": "string",
                    "maxLength": 17,
                    "minLength": 17,
                    "description": "17-character VIN. Case-insensitive. Excludes letters I, O, and Q per VIN standard."
                  },
                  "modelYear": {
                    "type": "integer",
                    "maximum": 2099,
                    "minimum": 1949,
                    "description": "Optional model-year hint — disambiguates VINs where the year-digit wraps (A=1980/2010, etc.)."
                  }
                },
                "additionalProperties": false
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 5 of 6

{
  "error": "PAYMENT-SIGNATURE required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
      "amount": "2500",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 60
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "name": "USDC",
        "version": "1",
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
      "amount": "2500",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://2s.io/api/wikipedia/summary",
    "tags": [
      "public-records",
      "identifiers",
      "ai-agents",
      "us-gov-data",
      "x402",
      "upto-billing",
      "ai-gateway",
      "agent-infrastructure"
    ],
    "iconUrl": "https://2s.io/icon-512.png",
    "mimeType": "application/json",
    "description": "Fetch a Wikipedia article summary in any of 30 supported languages. Returns title, displayTitle, lang, pageId, description, extract (plain text), extractHtml, lead image, canonical URLs, last-modified timestamp, word count, license, and an attribution string. Backed by https://<lang>.wikipedia.org/api/rest_v1/page/summary. Content is CC BY-SA 4.0 with attribution provided.",
    "serviceName": "2s"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "lang": "en",
            "title": "example"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "queryParams"
            ],
            "properties": {
              "type": {
                "const": "http"
              },
              "method": {
                "const": "GET"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "title"
                ],
                "properties": {
                  "lang": {
                    "enum": [
                      "en",
                      "es",
                      "fr",
                      "de",
                      "it",
                      "pt",
                      "ru",
                      "ja",
                      "zh",
                      "ko",
                      "ar",
                      "nl",
                      "pl",
                      "tr",
                      "sv",
                      "cs",
                      "fi",
                      "da",
                      "no",
                      "el",
                      "he",
                      "hi",
                      "th",
                      "vi",
                      "uk",
                      "id",
                      "ms",
                      "ro",
                      "hu",
                      "simple"
                    ],
                    "type": "string",
                    "default": "en"
                  },
                  "title": {
                    "type": "string",
                    "maxLength": 300,
                    "minLength": 1
                  }
                },
                "additionalProperties": false
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Captured payload 6 of 6

{
  "error": "PAYMENT-SIGNATURE required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
      "amount": "2500",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 60
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "name": "USDC",
        "version": "1",
        "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F"
      },
      "payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
      "amount": "2500",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://2s.io/api/geo/ip",
    "tags": [
      "public-records",
      "identifiers",
      "ai-agents",
      "us-gov-data",
      "x402",
      "upto-billing",
      "ai-gateway",
      "agent-infrastructure"
    ],
    "iconUrl": "https://2s.io/icon-512.png",
    "mimeType": "application/json",
    "description": "Geolocate a single IPv4 or IPv6 address. Returns country (name + ISO code), region (name + code), city, ZIP, lat/lon, timezone, ISP, organization, and AS number + name. For bulk lookups (up to 100 IPs in one call) use /api/ipinfo/bulk instead. Lat/lon precision is city-level, not GPS.",
    "serviceName": "2s"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "ip": "xx"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "queryParams"
            ],
            "properties": {
              "type": {
                "const": "http"
              },
              "method": {
                "const": "GET"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "ip"
                ],
                "properties": {
                  "ip": {
                    "type": "string",
                    "maxLength": 45,
                    "minLength": 2
                  }
                },
                "additionalProperties": false
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Can I trust it score from our own monitoring

score from our own monitoring

91/100 Solid

                           │         │        │···
0                          55        75       93

                │     │    │··
0               55    75   93

#42 of 477 in Data. Bands: strong 93+, solid 75+, mixed 55+, weak below 55.

Reliability: 100% uptime 30d
Compliance: A 14/14 checks pass
Price: $0.0025 to $0.009 p31 in Data
Risk: clean no risk flag
Traction: $17.26 30d 52 buyers, top buyer 38% (address, not entity)

14/14 compliance checks

402 payload captured
accepts[] array present
payTo address recoverable
payTo at accepts[0].payTo (conformant shape)
payTo is a valid on-chain address
atomic price declared
atomic price in a sane range
asset (token) address declared
network resolves to CAIP-2
payment scheme declared
served over HTTPS
declares the current x402 version (2)
EIP-712 domain parameters present on every EVM entry
x402 v2 envelope delivered in the payment-required header

402 terms unchanged since 2026-09-26. Last up 2026-11-09.

── Site signals

homepage reachable
openapi doc
pricing page
llms.txt
robots.txt
terms page

How the score works

What the score read on this service: status online, 100% uptime 30d, 345ms response p95, x402 compliance 14 of 14, $0.0025 price against the category, on-chain traction measured. Each of those is measured, and each is published in full below.

The score comes from our own monitoring, never from reviews, operator claims, or a language model: reliability, x402 compliance, price against the category, a deterministic risk flag, and a small on-chain traction term, weighted by ranking generation 3. It is not placement anyone can buy: the paid verify tier is reported beside it and is not one of its inputs. Every component below stays published and read-only.

Bands on the 0 to 100 measured score: strong at 93 and above, solid from 75, mixed from 55, weak below 55. Price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, so the score places a service in its own field.

It is a score inside Data, and only there: price and speed are scored against the whole category field, every listing in it that carries no danger flag, the scored service included, which here means 477 listings, this one among them: the same 477 the position above is counted against. When the two differ, the field is the wider one, because a listing we have measured too little of to rank still sits in the field the price and the speed are normalized over. The same service in a different field would read differently. The same engine answers GET /api/v1/best, and asked for a different pool (the whole directory, or another filter) it returns a different number for this service under this same ranking generation. Neither is more correct: they answer different questions, and the methodology states which is which.

Settled via coinbase ($17.26, 2,349 tx). Traction is a conservative undercount; first settlement seen 2026-05-29.

All measured facts

What it does

Keyless pay-per-call API for AI agents: 316 endpoints across 95+ groups. Patents & trademarks (USPTO), legal (CourtListener), government & economy (SEC EDGAR, Census, World Bank, Federal Register), finance/markets, science & medicine (arXiv, PubMed, ICD-10, drug data), vehicles & aviation (NHTSA), geo & weather (OpenStreetMap, NWS/NOAA, USGS), business registries (GLEIF LEI), sanctions screening (OFAC), cybersecurity (CVE/KEV/EPSS), and web/data utilities. No signup, no API key: pay per request in USDC on Base or Solana via x402. Machine-readable OpenAPI, llms.txt, JSON-LD, and MCP server card.

2s.io is a listed x402 Data API. Captured payment terms name Base, Solana. Monitoring and settlement figures below describe the observations available to this directory; an unpaid HTTP 402 check does not prove that a paid call will deliver.

Assessment computed at 2026-11-08 23:34:12 UTC. Latest service check observed at 2026-11-09 02:22:22 UTC. Service data JSON · Measurement methodology.

Page rendered at 2026-11-09 02:34:09 UTC. This response time is separate from the observation and computation times attached to each measurement.

Latest endpoint observation: 2026-11-09 02:22:22 UTC. Latest price capture: 2026-08-03 19:03:04 UTC. Prices are recorded quotes, not a promise of availability. Token assets and payment terms are listed separately. Endpoint data JSON · Price history JSON · Measurement methodology.

Assessment computed at 2026-11-08 23:34:12 UTC. Uptime uses the stated daily-rollup window; response times are in milliseconds, compliance is passed/evaluated checks, and traction is a measured settlement floor. The comparison score is out of 100 within this category. Assessment JSON · Measurement methodology.

Observed daily coverage: 2026-10-11 to 2026-11-09 UTC. Daily monitoring and settlement rollups do not expose their computation time; a bucket date is not an update timestamp. Latest settlement in the assessment: 2026-10-28 03:38:25 UTC. Uptime and response JSON · Volume JSON · Buyers JSON · Measurement methodology.

Ranked from the measured category pool, refreshed at most once a minute. The comparison has no persisted computation timestamp; the assessment time above belongs to this service only. Ranking API documentation · Ranking methodology.

x402 List home · Services · Data

uptime · latest daily rollup: 100%
uptime 7d: 99.8%
uptime 30d: 100%
uptime 90d: 100%
response p95: 345ms
avg response: 327ms
total checks: 3,903

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

price (min): $0.0025
price (max): $0.009
category percentile (min): p31 in Data
category percentile (max): p15 in Data
endpoints / prices: 6 / 4
model: tiered
stability: 0%

No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.

domain age: -
registrar: -
hosting: custom
domain created: ---

Identity facts, not a risk score.

assessment volume 30d: $17.26
exact assessment volume 30d (USD): 17.255616
assessment recorded at (UTC): 2026-11-08T23:34:12.170Z
buyers 30d: 52
settlements 30d: 2,349
measured since: 2026-05-29 (start of our harvest window)
last settlement: 2026-10-28
top buyer share: 38% of 30d volume (address, not entity)
top 3 buyers share: 57% of 30d volume (addresses, not entities)
concentrated volume: no
trend 7d vs 30d: 1.52x the 30d daily rate
networks: eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
volume all-time: $131.80
settlements all-time: 39,363
median settlement 30d: $0.003
max settlement 30d: $0.15

Assessment volume uses the latest 30d assessment. Over time sums daily address snapshots, rounded to cents and refreshed separately. The two sources can differ in timing, precision and shared-address attribution. Amounts use cents for comparison; known sub-cent values keep up to 12 significant digits. The exact stored assessment value is shown above.

Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.

Top buyer share lowers the on-chain traction part of the ranking score behind this page's verdict and /best, by up to half when one address holds all 30d volume. The Recommended and Highest volume sorts of the services list do not use it; they use the Concentrated volume rule instead.

member since: 2026-06-25

Recent checks

Latest 18 unpaid HTTP checks, newest first; response times in milliseconds, observation times in UTC
Checked at (UTC)	Status	HTTP	Response	Endpoints
2026-11-09 02:22:22 UTC	Online	402	131ms	6
2026-11-09 02:05:30 UTC	Online	402	144ms	6
2026-11-09 01:49:32 UTC	Online	402	124ms	6
2026-11-09 01:33:34 UTC	Online	402	104ms	6
2026-11-09 01:17:32 UTC	Online	402	105ms	6
2026-11-09 01:01:30 UTC	Online	402	235ms	6
2026-11-09 00:45:36 UTC	Online	402	189ms	6
2026-11-09 00:29:29 UTC	Online	402	119ms	6
2026-11-09 00:13:29 UTC	Online	402	121ms	6
2026-11-08 23:56:28 UTC	Online	402	304ms	6
2026-11-08 23:40:29 UTC	Online	402	250ms	6
2026-11-08 23:24:25 UTC	Online	402	269ms	6
2026-11-08 23:08:21 UTC	Online	402	428ms	6
2026-11-08 22:52:23 UTC	Online	402	318ms	6
2026-11-08 22:36:22 UTC	Online	402	327ms	6
2026-11-08 22:20:25 UTC	Online	402	384ms	6
2026-11-08 22:04:22 UTC	Online	402	171ms	6
2026-11-08 21:47:20 UTC	Online	402	313ms	6

Changes0 in 30d

No changes recorded in the last 30 days.

all changes

Over time

On-chain volume daily snapshots, USD 30d: $17.26, peak $2.36 on 10-22

                                        $2.36                                                    
                                  ▃▃    ██                                                       
                                  ██    ██       ██                                              
                ▅▅                ██    ██       ██       ▂▂                                     
       ▁▁ ▃▃    ██                ██    ██ ▇▇ ▂▂ ██       ██                                     
       ██ ██ ▄▄ ██ ▁▁ ▁▁ ·  ▁▁ ▃▃ ██ ▁▁ ██ ██ ██ ██ ▃▃ ▃▃ ██ ▃▃ ▃▃ ▄▄ ▁▁ ▁▁ ▁▁ ▁▁ ▁▁ ▁▁ ▁▁ ▁▁ ·  
    $0

volume no data in the payload

Distinct buyers per dayDistinct buyers per day

        6  9  9  6  4  2  ·  3  4  6  6  8  6  3  9  6  5 10  8 10  6  7  2  5  5  5  3  4  1  ·

Uptime 1 of 29 completed days below 100%

       ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ▇▇ ██ ██ ██ ██ ██ ██ ██

uptime below 100%, to scale

       10-11                                     10-25                                   11-09*

Volume 30d: $17.26
Uptime: 1 of 29 completed days below 100%

Daily on-chain settlement volume in US dollars, 2026-10-11 to 2026-11-09; highest day $2.36 on 10-22; 2 days have no data in the payload; distinct buyers per day

Day    Volume             USD  Buyers
10-11                   $0.56       6
10-12                   $0.66       9
10-13                   $0.23       9
10-14                   $1.25       6
10-15                   $0.05       4
10-16                   $0.01       2
10-17  · no data
10-18                   $0.05       3
10-19                   $0.16       4
10-20                   $2.08       6
10-21                   $0.07       6
10-22                   $2.36       8
10-23                   $0.90       6
10-24                   $0.59       3
10-25                   $1.87       9
10-26                   $0.17       6
10-27                   $0.15       5
10-28                   $1.09      10
10-29                   $0.15       8
10-30                   $0.15      10
10-31                   $0.23       6
11-01                   $0.06       7
11-02                   $0.01       2
11-03                   $0.06       5
11-04                   $0.03       5
11-05                   $0.01       5
11-06                   $0.04       3
11-07                   $0.02       4
11-08                   $0.01       1
11-09* · no data

More charts

Response time daily average, ms min 142ms, avg 242ms, max 353ms

       ██ ██ ▆▆ ▆▆ ▅▅ ▆▆ ▅▅ ▅▅ ▇▇ ▆▆ ▄▄ ▅▅ ▅▅ ▅▅ ▆▆ ▅▅ ▅▅ ▅▅ ▆▆ ▄▄ ▅▅ ▅▅ ▅▅ ▆▆ ▅▅ ▆▆ ▅▅ ▅▅ ▅▅ ▃▃

10-11 to 11-09* UTC

      ██▆▆▅▆▅▅▇▆▄▅▅▅▆▅▅▅▆▄▅▅▅▆▅▆▅▅▅▃

      10-11         10-25     11-09*

Scores over time

x402 compliance low 14/14, high 14/14

       ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄

10-11 to 11-09* UTC

      ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

      10-11         10-25     11-09*

Price percentile in Data own low to high; exact values below

       ▄▄ ▄▄ ▄▄ ▁▁ ▁▁ ▁▁ ▄▄ ▄▄ ▄▄ ▁▁ ▁▁ ▁▁ ▄▄ ▁▁ ▁▁ ▁▁ ▄▄ ▄▄ ▇▇ ▇▇ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄

10-11 to 11-09* UTC

      ▄▄▄▁▁▁▄▄▄▁▁▁▄▁▁▁▄▄▇▇▄▄▄▄▄▄▄▄▄

      10-11         10-25     11-09*

Site signals present (of 6) own low to high; exact values below

       ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄ ▄▄

10-11 to 11-09* UTC

      ▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

      10-11         10-25     11-09*

       10-11                                     10-25                                   11-09*

      10-11         10-25     11-09*

Scores: one day per column, 10-11 to 11-09*, on the columns of Response time. Uptime held below 100% on some days in this window, including any partial day. Daily readings remain in the Uptime strip and Values. The checklist grew from 11 to 14 checks on 2026-07-28, before this window. Pillar lines use their own low and high. Exact dated readings are available in each readout and in Values.

Each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/2s-io/price, /scores, /volume and /buyers.

Values

* today so far, partial (UTC).

The uptime summary counts completed UTC days only. The strip, readouts and table retain today's partial reading.

Daily snapshot total, 30d: $13.02, peak $2.36 on 10-22. The visible 30d total in Traction comes from the latest assessment. These sources can differ in their window, refresh time, cent rounding and shared-address attribution.

Daily address snapshots: 2026-10-11 to 2026-11-09 UTC; * today so far, partial (UTC). Daily snapshots store cents. A recorded $0.00 with settlements cannot distinguish exact zero from volume rounded away. Lost precision is unavailable here.

Settlement volume uses the stored USD valuation of tracked payments; it is distinct from token quantities. USD-pegged assets are valued at 1 USD per token in these rollups. The measured settlement floor does not cover all payments to this service.

Assessment history last recorded at 2026-11-08 23:34:12 UTC. Each UTC day uses its last recorded run; missing readings stay unmeasured. Assessment history JSON · Measurement methodology.

Daily values, 2026-10-11 to 2026-11-09: address settlement volume in USD, distinct buyer and settlement counts, uptime percent, average response milliseconds, compliance passed/total, price percentile 0-100, site signals out of 6; UTC dates
Day	Volume	Buyers	Settlements	Uptime	Response	Compliance	Price percentile	Site signals
2026-10-11	$0.56	6	26	100%	353.49ms	14/14	p31	3/6
2026-10-12	$0.66	9	32	100%	351.26ms	14/14	p31	3/6
2026-10-13	$0.23	9	26	100%	275.67ms	14/14	p31	3/6
2026-10-14	$1.25	6	46	100%	278.67ms	14/14	p30	3/6
2026-10-15	$0.05	4	11	100%	239.77ms	14/14	p30	3/6
2026-10-16	$0.01	2	2	100%	276.50ms	14/14	p30	3/6
2026-10-17	no data	no data	no data	100%	229.71ms	14/14	p31	3/6
2026-10-18	$0.05	3	5	100%	242.07ms	14/14	p31	3/6
2026-10-19	$0.16	4	52	100%	289.30ms	14/14	p31	3/6
2026-10-20	$2.08	6	143	100%	265.21ms	14/14	p30	3/6
2026-10-21	$0.07	6	20	100%	198.30ms	14/14	p30	3/6
2026-10-22	$2.36	8	272	100%	210.10ms	14/14	p30	3/6
2026-10-23	$0.90	6	323	100%	226.82ms	14/14	p31	3/6
2026-10-24	$0.59	3	226	100%	241.83ms	14/14	p30	3/6
2026-10-25	$1.87	9	593	100%	251.34ms	14/14	p30	3/6
2026-10-26	$0.17	6	59	100%	222.78ms	14/14	p30	3/6
2026-10-27	$0.15	5	55	100%	237.71ms	14/14	p31	3/6
2026-10-28	$1.09	10	192	100%	209.46ms	14/14	p31	3/6
2026-10-29	$0.15	8	39	100%	250.25ms	14/14	p32	3/6
2026-10-30	$0.15	10	38	100%	192.70ms	14/14	p32	3/6
2026-10-31	$0.23	6	22	100%	218.03ms	14/14	p31	3/6
2026-11-01	$0.06	7	19	100%	219.93ms	14/14	p31	3/6
2026-11-02	$0.01	2	2	98.86%	230.01ms	14/14	p31	3/6
2026-11-03	$0.06	5	15	100%	264.54ms	14/14	p31	3/6
2026-11-04	$0.03	5	10	100%	216.91ms	14/14	p31	3/6
2026-11-05	$0.01	5	5	100%	279.83ms	14/14	p31	3/6
2026-11-06	$0.04	3	7	100%	233.59ms	14/14	p31	3/6
2026-11-07	$0.02	4	6	100%	217.91ms	14/14	p31	3/6
2026-11-08	$0.01	1	3	100%	205.60ms	14/14	p31	3/6
2026-11-09*	no data	no data	no data	100%	142.43ms	no data	no data	no data

Alternatives in Data

MoneyTools Tools strong 99/100 100% up 30d --- 30d

Money Reactor strong 98/100 97.3% up 30d --- 30d

CrawlWitness strong 98/100 100% up 30d --- 30d

Weather strong 98/100 99.9% up 30d --- 30d

AgentReader strong 98/100 99.7% up 30d --- 30d

5 of 476 other ranked services in Data, ordered by the same measured score.

see the whole category

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