← Protocol index
Resource / 255
healthy2s.
Fetch the authoritative text of any section of the US Code of Federal Regulations by title and section number — for example title 12, section 1026.43 returns Regulation Z’s ability-to-repay standards. Returns the canonical citation, section heading, full plain text, Federal Register source credit, the as-of date, and a link to the official eCFR page. An optional date parameter (YYYY-MM-DD) retrieves the historical text in force on that date, back to 2017. Data from the Electronic Code of Federal Regulations (US GPO / Office of the Federal Register), public domain, updated daily — verify regulatory citations against the authoritative source instead of relying on model memory.
Payment requirements / accepts[]
2 options
| State | Network | Scheme | Atomic amount | Asset | payTo / untrusted |
|---|---|---|---|---|---|
| active | eip155:8453 | exact | 4500 | 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | 0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5 |
| active | solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp | exact | 4500 | EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v | TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn |
All advertised payment options are stored. Base (`eip155:8453`) is the operational network for ranking and canaries; non-Base options remain visible for transparency.
Probe evidence
1 recent
healthy 2026-08-12 22:00:02 UTC GET · HTTP 402 · 35ms · accepts 2 · base 1 ok
Accepts snapshot
[
{
"amount": "4500",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"assetTransferMethod": null,
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 60,
"network": "eip155:8453",
"payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
"paymentFlow": null,
"raw": {
"amount": "4500",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 60,
"max_timeout_seconds": 60,
"network": "eip155:8453",
"payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
"pay_to": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
"scheme": "exact"
},
"scheme": "exact"
},
{
"amount": "4500",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"assetTransferMethod": null,
"extra": {
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
"name": "USDC",
"version": "1"
},
"maxTimeoutSeconds": 60,
"network": "solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp",
"payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
"paymentFlow": null,
"raw": {
"amount": "4500",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
"name": "USDC",
"version": "1"
},
"maxTimeoutSeconds": 60,
"max_timeout_seconds": 60,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
"pay_to": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
"scheme": "exact"
},
"scheme": "exact"
}
]
PaymentRequired raw
{
"accepts": [
{
"amount": "4500",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 60,
"network": "eip155:8453",
"payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
"scheme": "exact"
},
{
"amount": "4500",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
"name": "USDC",
"version": "1"
},
"maxTimeoutSeconds": 60,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
"scheme": "exact"
}
],
"error": "PAYMENT-SIGNATURE required",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"date": "2024-01-01",
"section": "12345678",
"title": 1
},
"type": "http"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"properties": {
"method": {
"const": "GET"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"date": {
"description": "Optional point-in-time date (YYYY-MM-DD). Returns the text in force on that date; coverage starts 2017-01-03. Defaults to the latest available text.",
"type": "string"
},
"section": {
"description": "Section identifier as \"part.section\", e.g. \"1026.43\" or \"240.10b-5\". The part is the digits before the dot.",
"type": "string"
},
"title": {
"description": "CFR title number, 1-50 (e.g. 12 for Banks and Banking, 40 for Protection of Environment).",
"maximum": 50,
"minimum": 1,
"type": "integer"
}
},
"required": [
"title",
"section"
],
"type": "object"
},
"type": {
"const": "http"
}
},
"required": [
"type",
"method",
"queryParams"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"resource": {
"description": "Fetch the authoritative text of any section of the US Code of Federal Regulations by title and section number — for example title 12, section 1026.43 returns Regulation Z’s ability-to-repay standards. Returns the canonical citation, section heading, full plain text, Federal Register source credit, the as-of date, and a link to the official eCFR page. An optional date parameter (YYYY-MM-DD) retrieves the historical text in force on that date, back to 2017. Data from the Electronic Code of Federal Regulations (US GPO / Office of the Federal Register), public domain, updated daily — verify regulatory citations against the authoritative source instead of relying on model memory.",
"iconUrl": "https://2s.io/icon-512.png",
"mimeType": "application/json",
"serviceName": "2s",
"tags": [
"public-records",
"identifiers",
"ai-agents",
"us-gov-data",
"x402",
"upto-billing",
"ai-gateway",
"agent-infrastructure"
],
"url": "https://2s.io/api/law/cfr-section"
},
"x402Version": 2
}
Response headers
{
"access-control-allow-headers": "Authorization, Content-Type",
"access-control-allow-methods": "GET, POST, OPTIONS",
"access-control-allow-origin": "*",
"access-control-max-age": "86400",
"age": "0",
"cache-control": "public, max-age=0, must-revalidate",
"content-security-policy": "default-src 'none'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; font-src 'self'; connect-src 'self'; frame-ancestors 'none'; base-uri 'none'",
"content-type": "application/json",
"date": "Wed, 12 Aug 2026 22:00:02 GMT",
"payment-required": "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",
"permissions-policy": "geolocation=(), camera=(), microphone=()",
"referrer-policy": "no-referrer",
"server": "Vercel",
"strict-transport-security": "max-age=63072000; includeSubDomains; preload",
"transfer-encoding": "chunked",
"x-content-type-options": "nosniff",
"x-frame-options": "DENY",
"x-matched-path": "/api/law/cfr-section",
"x-payment-requirements": "x402",
"x-vercel-cache": "MISS",
"x-vercel-id": "iad1::iad1::lkqh5-1786572002227-55869d7db665"
}
Response body
{
"accepts": [
{
"amount": "4500",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 60,
"network": "eip155:8453",
"payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
"scheme": "exact"
},
{
"amount": "4500",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
"name": "USDC",
"version": "1"
},
"maxTimeoutSeconds": 60,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
"scheme": "exact"
}
],
"error": "PAYMENT-SIGNATURE required",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"date": "2024-01-01",
"section": "12345678",
"title": 1
},
"type": "http"
},
"output": {
"example": {
"items": [
{
"asOfDate": "example",
"citation": "example",
"heading": "example",
"part": "example",
"section": "example",
"sourceCredit": "example",
"text": "example",
"title": 1,
"truncated": false,
"url": "example"
}
],
"ok": true,
"source": {
"license": "example",
"provider": "example",
"url": "example"
},
"total": 1
},
"schema": {
"additionalProperties": false,
"properties": {
"items": {
"items": {
"additionalProperties": false,
"properties": {
"asOfDate": {
"description": "Date (yyyy-mm-dd) the returned text reflects.",
"type": "string"
},
"citation": {
"description": "Canonical citation, e.g. \"12 CFR 1026.43\".",
"type": "string"
},
"heading": {
"description": "Official section heading.",
"type": "string"
},
"part": {
"description": "Part identifier (digits before the dot).",
"type": "string"
},
"section": {
"description": "Full section identifier.",
"type": "string"
},
"sourceCredit": {
"description": "Federal Register source credit (citation history), when present.",
"nullable": true,
"type": "string"
},
"text": {
"description": "Plain-text body of the section.",
"type": "string"
},
"title": {
"description": "CFR title number.",
"type": "integer"
},
"truncated": {
"description": "True if text was cut at the response cap (rare, giant sections only).",
"type": "boolean"
},
"url": {
"description": "Official eCFR page for the section.",
"type": "string"
}
},
"required": [
"citation",
"title",
"part",
"section",
"heading",
"text",
"sourceCredit",
"asOfDate",
"truncated",
"url"
],
"type": "object"
},
"type": "array"
},
"ok": {
"enum": [
true
],
"type": "boolean"
},
"source": {
"additionalProperties": false,
"properties": {
"license": {
"type": "string"
},
"provider": {
"type": "string"
},
"url": {
"type": "string"
}
},
"required": [
"provider",
"url",
"license"
],
"type": "object"
},
"total": {
"description": "Total matching rows upstream; null when unknown.",
"nullable": true,
"type": "integer"
}
},
"required": [
"ok",
"items",
"total",
"source"
],
"type": "object"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"properties": {
"method": {
"const": "GET"
},
"queryParams": {
"additionalProperties": false,
"properties": {
"date": {
"description": "Optional point-in-time date (YYYY-MM-DD). Returns the text in force on that date; coverage starts 2017-01-03. Defaults to the latest available text.",
"type": "string"
},
"section": {
"description": "Section identifier as \"part.section\", e.g. \"1026.43\" or \"240.10b-5\". The part is the digits before the dot.",
"type": "string"
},
"title": {
"description": "CFR title number, 1-50 (e.g. 12 for Banks and Banking, 40 for Protection of Environment).",
"maximum": 50,
"minimum": 1,
"type": "integer"
}
},
"required": [
"title",
"section"
],
"type": "object"
},
"type": {
"const": "http"
}
},
"required": [
"type",
"method",
"queryParams"
],
"type": "object"
},
"output": {
"additionalProperties": false,
"properties": {
"items": {
"items": {
"additionalProperties": false,
"properties": {
"asOfDate": {
"description": "Date (yyyy-mm-dd) the returned text reflects.",
"type": "string"
},
"citation": {
"description": "Canonical citation, e.g. \"12 CFR 1026.43\".",
"type": "string"
},
"heading": {
"description": "Official section heading.",
"type": "string"
},
"part": {
"description": "Part identifier (digits before the dot).",
"type": "string"
},
"section": {
"description": "Full section identifier.",
"type": "string"
},
"sourceCredit": {
"description": "Federal Register source credit (citation history), when present.",
"nullable": true,
"type": "string"
},
"text": {
"description": "Plain-text body of the section.",
"type": "string"
},
"title": {
"description": "CFR title number.",
"type": "integer"
},
"truncated": {
"description": "True if text was cut at the response cap (rare, giant sections only).",
"type": "boolean"
},
"url": {
"description": "Official eCFR page for the section.",
"type": "string"
}
},
"required": [
"citation",
"title",
"part",
"section",
"heading",
"text",
"sourceCredit",
"asOfDate",
"truncated",
"url"
],
"type": "object"
},
"type": "array"
},
"ok": {
"enum": [
true
],
"type": "boolean"
},
"source": {
"additionalProperties": false,
"properties": {
"license": {
"type": "string"
},
"provider": {
"type": "string"
},
"url": {
"type": "string"
}
},
"required": [
"provider",
"url",
"license"
],
"type": "object"
},
"total": {
"description": "Total matching rows upstream; null when unknown.",
"nullable": true,
"type": "integer"
}
},
"required": [
"ok",
"items",
"total",
"source"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"resource": {
"description": "Fetch the authoritative text of any section of the US Code of Federal Regulations by title and section number — for example title 12, section 1026.43 returns Regulation Z’s ability-to-repay standards. Returns the canonical citation, section heading, full plain text, Federal Register source credit, the as-of date, and a link to the official eCFR page. An optional date parameter (YYYY-MM-DD) retrieves the historical text in force on that date, back to 2017. Data from the Electronic Code of Federal Regulations (US GPO / Office of the Federal Register), public domain, updated daily — verify regulatory citations against the authoritative source instead of relying on model memory.",
"iconUrl": "https://2s.io/icon-512.png",
"mimeType": "application/json",
"serviceName": "2s",
"tags": [
"public-records",
"identifiers",
"ai-agents",
"us-gov-data",
"x402",
"upto-billing",
"ai-gateway",
"agent-infrastructure"
],
"url": "https://2s.io/api/law/cfr-section"
},
"x402Version": 2
}
Request headers
{
"accept": "*/*",
"user-agent": "Fetch402Bot/0.1 (+https://fetch402.com/crawler; contact: crawler@fetch402.com)"
}
Machine contract
Schemas.
InputJSON
{
"method": "GET",
"queryParams": {
"date": "2024-01-01",
"section": "12345678",
"title": 1
},
"type": "http"
}
OutputJSON
{}