Library of Congress JSON/YAML API · 馆藏资料请求

支持的 loc.gov 馆藏页面可通过 fo=json 或 fo=yaml 读取结构化响应，并按搜索、集合、item/resource 端点和查询条件访问。仅整理请求指南，未执行 API 查询。

Source statements below remain in their published language. Collection, contributor reports and a provider's identity are separate; this page does not certify quality, current availability or permission to execute.

Stable ID: cap-cbb410cfe25f2f11e40bf36b
Card version: 2
Updated: 2026-10-24T18:20:20.7401972+00:00
Ownership state: unclaimed
Processing: unknown
Evidence level: unknown
Business execution: unknown

Keep this fixed version · Original public source · Complete machine record

Published description

官方基址模板为 https://www.loc.gov/{endpoint}/?fo=json，文档列 /search、/{format}、/collections、/collections/{collection} 以及 /item、/resource，并给 q 与 fa 组合的 photos 示例。并非每个 loc.gov 子站都由该 API 实现；文档明确列举 nls、publish、aba、rr、pictures 等不提供同种 API 响应的范围。此页是请求构造指南，完整返回 schema、分页、费用和访问政策需要相应子文档。

Inputs

适用的官方 endpoint
fo=json 或 fo=yaml 输出格式
按端点支持的 q、fa 等查询条件

Outputs

支持站点的 JSON 或 YAML 响应
相应搜索、集合、item 或 resource 资料
具体字段和分页结构未在此请求页完整定义

Invocation and authentication

Provider's original entry

{
  "authentication": {
    "kind": "unknown",
    "notes": "\u8BF7\u6C42\u793A\u4F8B\u672A\u5E26 key\uFF0C\u4F46\u672C\u9875\u6CA1\u6709\u660E\u786E\u5B8C\u6574\u8BA4\u8BC1\u548C\u8BBF\u95EE\u653F\u7B56\uFF1B\u672A\u5B9E\u9645\u6D4B\u8BD5\u533F\u540D\u8C03\u7528\u3002"
  },
  "command": null,
  "entry_url": "https://www.loc.gov/search/?fo=json",
  "kind": "http_api",
  "method": "GET",
  "requirements": [
    "\u4F7F\u7528\u6587\u6863\u652F\u6301\u7684 endpoint \u4E0E\u683C\u5F0F\u53C2\u6570",
    "\u6309 API Endpoints/Parameters \u7684\u5B9E\u9645\u5B9A\u4E49\u6784\u9020\u67E5\u8BE2",
    "\u6838\u5BF9\u5177\u4F53\u9986\u85CF\u6216\u6570\u5B57\u8D44\u6E90\u7684\u4F7F\u7528\u6743\u5229"
  ]
}

Commands and request examples are documentation only; this page does not execute them. Confirm external installation, disclosure and fees separately.

Third-party pricing and data handling

{
  "model": "unknown",
  "notes": "\u672C\u8BF7\u6C42\u9875\u6CA1\u6709\u786E\u8BA4\u6536\u8D39\u3001\u6570\u5B57\u901F\u7387\u3001\u6BCF\u65E5\u989D\u5EA6\u6216\u5B8C\u6574\u518D\u4F7F\u7528\u653F\u7B56\uFF0C\u4E0D\u80FD\u7531\u516C\u5F00\u793A\u4F8B\u63A8\u5B9A\u65E0\u9650\u5236\u3002",
  "source_url": null
}

{
  "location": "provider_server",
  "notes": "\u67E5\u8BE2\u6761\u4EF6\u53D1\u9001\u81F3 Library of Congress\uFF1B\u8FD4\u56DE\u5143\u6570\u636E\u4E0E\u539F\u59CB\u5185\u5BB9/\u56FE\u50CF\u7684\u6743\u5229\u9700\u8981\u5206\u522B\u6838\u5BF9\uFF0C\u67E5\u8BE2\u4FDD\u7559\u653F\u7B56\u672C\u9875\u672A\u8BF4\u660E\u3002"
}

Unknown is not a claim that a service is free, anonymous, private or unavailable.

Limitations

未检索 API、取得馆藏数据、下载原件或图像。
不能把任意 loc.gov 页面加 fo=json 都当作可用 API，多个子站明确不适用。
搜索/集合与 item/resource 端点的契约应分别核对。
结构化数据可读取不等于全部馆藏已数字化或全部内容可自由再发布。
当前仅依据请求指南，不声明查询结果完整或服务已连通。

Unknowns

当前认证、数字限额、完整返回 schema 与分页待核对。
特定资源的版权、完整性和数字化范围未验证。
实际响应、检索质量和当前可用性未测试。

Fixed profiles, conditions and evidence

Read state: not_checked; review state: unknown. Do not combine different profiles.

资料与来源声明不等于本站实测；未列出的条件仍未知。

结构化配方只按公开声明检查约束与接口，不执行任务或授予权限；缺失记录保持未知，接口兼容不证明实际成功。

Contributor-reported verification

{
  "checked_at": "2026-10-24T18:14:59.9381216\u002B00:00",
  "checks_performed": [
    "\u6765\u6E90HTTPS\u54CD\u5E94\u53EF\u8BFB\u53D6"
  ],
  "evidence_urls": [
    "https://www.loc.gov/apis/json-and-yaml/requests/"
  ],
  "level": "documentation_only",
  "not_verified": [
    "\u529F\u80FD\u3001\u9274\u6743\u3001\u5B89\u88C5\u3001\u8F93\u51FA\u8D28\u91CF\u3001\u957F\u671F\u53EF\u7528\u6027\u5747\u672A\u7531\u672C\u7AD9\u6D4B\u8BD5\u3002"
  ],
  "outcome": "not_tested",
  "reported_by": "contributor",
  "software_version": null,
  "test_summary": "\u4EC5\u8BFB\u53D6\u516C\u5F00\u6765\u6E90\uFF1B\u672A\u8C03\u7528\u6240\u8FF0\u5DE5\u5177\u3002"
}

Connection, installation, execution, output checks and user acceptance are different stages. This is not a commercial call or income receipt.

Dynamic observations and corrections

null

null

Add a public correction or observation

Submit only facts you may disclose, without private tasks, customer data or credentials. Corrections are proposals; observations are conditional contributor reports, not automatically verified facts, commercial calls or income.

Propose a sourced summary correction

Report a conditional public observation

Complete fixed public record and original source fields

This is the existing public read projection, not a translated or rewritten snapshot. Dynamic observations, where present, remain labelled separately from evidence.

{
  "author_name": null,
  "availability": "unknown",
  "callability": "documentation_only",
  "category": "development",
  "data_handling": {
    "location": "provider_server",
    "notes": "\u67E5\u8BE2\u6761\u4EF6\u53D1\u9001\u81F3 Library of Congress\uFF1B\u8FD4\u56DE\u5143\u6570\u636E\u4E0E\u539F\u59CB\u5185\u5BB9/\u56FE\u50CF\u7684\u6743\u5229\u9700\u8981\u5206\u522B\u6838\u5BF9\uFF0C\u67E5\u8BE2\u4FDD\u7559\u653F\u7B56\u672C\u9875\u672A\u8BF4\u660E\u3002"
  },
  "description": "\u5B98\u65B9\u57FA\u5740\u6A21\u677F\u4E3A https://www.loc.gov/{endpoint}/?fo=json\uFF0C\u6587\u6863\u5217 /search\u3001/{format}\u3001/collections\u3001/collections/{collection} \u4EE5\u53CA /item\u3001/resource\uFF0C\u5E76\u7ED9 q \u4E0E fa \u7EC4\u5408\u7684 photos \u793A\u4F8B\u3002\u5E76\u975E\u6BCF\u4E2A loc.gov \u5B50\u7AD9\u90FD\u7531\u8BE5 API \u5B9E\u73B0\uFF1B\u6587\u6863\u660E\u786E\u5217\u4E3E nls\u3001publish\u3001aba\u3001rr\u3001pictures \u7B49\u4E0D\u63D0\u4F9B\u540C\u79CD API \u54CD\u5E94\u7684\u8303\u56F4\u3002\u6B64\u9875\u662F\u8BF7\u6C42\u6784\u9020\u6307\u5357\uFF0C\u5B8C\u6574\u8FD4\u56DE schema\u3001\u5206\u9875\u3001\u8D39\u7528\u548C\u8BBF\u95EE\u653F\u7B56\u9700\u8981\u76F8\u5E94\u5B50\u6587\u6863\u3002",
  "inputs": [
    "\u9002\u7528\u7684\u5B98\u65B9 endpoint",
    "fo=json \u6216 fo=yaml \u8F93\u51FA\u683C\u5F0F",
    "\u6309\u7AEF\u70B9\u652F\u6301\u7684 q\u3001fa \u7B49\u67E5\u8BE2\u6761\u4EF6"
  ],
  "invocation": {
    "authentication": {
      "kind": "unknown",
      "notes": "\u8BF7\u6C42\u793A\u4F8B\u672A\u5E26 key\uFF0C\u4F46\u672C\u9875\u6CA1\u6709\u660E\u786E\u5B8C\u6574\u8BA4\u8BC1\u548C\u8BBF\u95EE\u653F\u7B56\uFF1B\u672A\u5B9E\u9645\u6D4B\u8BD5\u533F\u540D\u8C03\u7528\u3002"
    },
    "command": null,
    "entry_url": "https://www.loc.gov/search/?fo=json",
    "kind": "http_api",
    "method": "GET",
    "requirements": [
      "\u4F7F\u7528\u6587\u6863\u652F\u6301\u7684 endpoint \u4E0E\u683C\u5F0F\u53C2\u6570",
      "\u6309 API Endpoints/Parameters \u7684\u5B9E\u9645\u5B9A\u4E49\u6784\u9020\u67E5\u8BE2",
      "\u6838\u5BF9\u5177\u4F53\u9986\u85CF\u6216\u6570\u5B57\u8D44\u6E90\u7684\u4F7F\u7528\u6743\u5229"
    ]
  },
  "limitations": [
    "\u672A\u68C0\u7D22 API\u3001\u53D6\u5F97\u9986\u85CF\u6570\u636E\u3001\u4E0B\u8F7D\u539F\u4EF6\u6216\u56FE\u50CF\u3002",
    "\u4E0D\u80FD\u628A\u4EFB\u610F loc.gov \u9875\u9762\u52A0 fo=json \u90FD\u5F53\u4F5C\u53EF\u7528 API\uFF0C\u591A\u4E2A\u5B50\u7AD9\u660E\u786E\u4E0D\u9002\u7528\u3002",
    "\u641C\u7D22/\u96C6\u5408\u4E0E item/resource \u7AEF\u70B9\u7684\u5951\u7EA6\u5E94\u5206\u522B\u6838\u5BF9\u3002",
    "\u7ED3\u6784\u5316\u6570\u636E\u53EF\u8BFB\u53D6\u4E0D\u7B49\u4E8E\u5168\u90E8\u9986\u85CF\u5DF2\u6570\u5B57\u5316\u6216\u5168\u90E8\u5185\u5BB9\u53EF\u81EA\u7531\u518D\u53D1\u5E03\u3002",
    "\u5F53\u524D\u4EC5\u4F9D\u636E\u8BF7\u6C42\u6307\u5357\uFF0C\u4E0D\u58F0\u660E\u67E5\u8BE2\u7ED3\u679C\u5B8C\u6574\u6216\u670D\u52A1\u5DF2\u8FDE\u901A\u3002"
  ],
  "outputs": [
    "\u652F\u6301\u7AD9\u70B9\u7684 JSON \u6216 YAML \u54CD\u5E94",
    "\u76F8\u5E94\u641C\u7D22\u3001\u96C6\u5408\u3001item \u6216 resource \u8D44\u6599",
    "\u5177\u4F53\u5B57\u6BB5\u548C\u5206\u9875\u7ED3\u6784\u672A\u5728\u6B64\u8BF7\u6C42\u9875\u5B8C\u6574\u5B9A\u4E49"
  ],
  "pricing": {
    "model": "unknown",
    "notes": "\u672C\u8BF7\u6C42\u9875\u6CA1\u6709\u786E\u8BA4\u6536\u8D39\u3001\u6570\u5B57\u901F\u7387\u3001\u6BCF\u65E5\u989D\u5EA6\u6216\u5B8C\u6574\u518D\u4F7F\u7528\u653F\u7B56\uFF0C\u4E0D\u80FD\u7531\u516C\u5F00\u793A\u4F8B\u63A8\u5B9A\u65E0\u9650\u5236\u3002",
    "source_url": null
  },
  "provider_claimed": false,
  "record_kind": "public_source",
  "representative_queries": [],
  "sources": [
    {
      "basis": "public_record",
      "checked_at": "2026-10-24T18:14:59.9381216\u002B00:00",
      "title": "Making API Requests | JSON/YAML for LoC.gov | APIs at the Library of Congress | Library of Congress",
      "url": "https://www.loc.gov/apis/json-and-yaml/requests/"
    }
  ],
  "summary": "\u652F\u6301\u7684 loc.gov \u9986\u85CF\u9875\u9762\u53EF\u901A\u8FC7 fo=json \u6216 fo=yaml \u8BFB\u53D6\u7ED3\u6784\u5316\u54CD\u5E94\uFF0C\u5E76\u6309\u641C\u7D22\u3001\u96C6\u5408\u3001item/resource \u7AEF\u70B9\u548C\u67E5\u8BE2\u6761\u4EF6\u8BBF\u95EE\u3002\u4EC5\u6574\u7406\u8BF7\u6C42\u6307\u5357\uFF0C\u672A\u6267\u884C API \u67E5\u8BE2\u3002",
  "tags": [
    "Library of Congress",
    "\u9986\u85CF\u6570\u636E",
    "JSON/YAML",
    "HTTP API",
    "\u68C0\u7D22"
  ],
  "terms_url": null,
  "title": "Library of Congress JSON/YAML API \u00B7 \u9986\u85CF\u8D44\u6599\u8BF7\u6C42",
  "unknowns": [
    "\u5F53\u524D\u8BA4\u8BC1\u3001\u6570\u5B57\u9650\u989D\u3001\u5B8C\u6574\u8FD4\u56DE schema \u4E0E\u5206\u9875\u5F85\u6838\u5BF9\u3002",
    "\u7279\u5B9A\u8D44\u6E90\u7684\u7248\u6743\u3001\u5B8C\u6574\u6027\u548C\u6570\u5B57\u5316\u8303\u56F4\u672A\u9A8C\u8BC1\u3002",
    "\u5B9E\u9645\u54CD\u5E94\u3001\u68C0\u7D22\u8D28\u91CF\u548C\u5F53\u524D\u53EF\u7528\u6027\u672A\u6D4B\u8BD5\u3002"
  ],
  "verification": {
    "checked_at": "2026-10-24T18:14:59.9381216\u002B00:00",
    "checks_performed": [
      "\u6765\u6E90HTTPS\u54CD\u5E94\u53EF\u8BFB\u53D6"
    ],
    "evidence_urls": [
      "https://www.loc.gov/apis/json-and-yaml/requests/"
    ],
    "level": "documentation_only",
    "not_verified": [
      "\u529F\u80FD\u3001\u9274\u6743\u3001\u5B89\u88C5\u3001\u8F93\u51FA\u8D28\u91CF\u3001\u957F\u671F\u53EF\u7528\u6027\u5747\u672A\u7531\u672C\u7AD9\u6D4B\u8BD5\u3002"
    ],
    "outcome": "not_tested",
    "reported_by": "contributor",
    "software_version": null,
    "test_summary": "\u4EC5\u8BFB\u53D6\u516C\u5F00\u6765\u6E90\uFF1B\u672A\u8C03\u7528\u6240\u8FF0\u5DE5\u5177\u3002"
  },
  "schema_version": "navonavo.capability.v1",
  "service_id": "cap-cbb410cfe25f2f11e40bf36b",
  "version": 2,
  "source_url": "https://www.loc.gov/apis/json-and-yaml/requests/",
  "ownership_state": "unclaimed",
  "submitted_by": {
    "kind": "importer",
    "name": "NAVONAVO public material importer"
  },
  "submitter_identity_verified": false,
  "source_check": {
    "url": "https://www.loc.gov/apis/json-and-yaml/requests/",
    "final_url": "https://www.loc.gov/apis/json-and-yaml/requests/",
    "status_code": 200,
    "title": "Making API Requests | JSON/YAML for LoC.gov | APIs at the Library of Congress | Library of Congress",
    "description": "How to craft a request to the JSON/YAML API for loc.gov",
    "checked_at": "2026-10-24T18:14:59.9381216\u002B00:00",
    "warnings": [
      "\u6765\u6E90\u53EF\u8BFB\u53D6\u53EA\u8BC1\u660E\u672C\u6B21\u8D44\u6599\u8BFB\u53D6\uFF0C\u4E0D\u662F\u529F\u80FD\u3001\u8EAB\u4EFD\u6216\u957F\u671F\u53EF\u7528\u6027\u8BA4\u8BC1\u3002"
    ]
  },
  "created_at": "2026-10-24T18:15:02.6592146\u002B00:00",
  "updated_at": "2026-10-24T18:20:20.7401972\u002B00:00",
  "read_url": "https://navonavo.com/api/v1/capabilities/cap-cbb410cfe25f2f11e40bf36b?version=2",
  "page_url": "https://navonavo.com/capabilities/cap-cbb410cfe25f2f11e40bf36b?version=2",
  "verification_scope": "verification\u4E3A\u6295\u7A3F\u8005\u4E0A\u62A5\uFF1Bsource_check\u4EC5\u4E3A\u672C\u7AD9\u6765\u6E90\u8BFB\u53D6\uFF0C\u4E0D\u5347\u7EA7\u4E3A\u529F\u80FD\u9A8C\u8BC1\u6216\u5B98\u65B9\u8BA4\u8BC1\u3002",
  "library_material": {
    "organization": "organized",
    "semantic_state": "classified",
    "semantic_category": "\u6587\u5316\u4E0E\u56FE\u4E66\u8D44\u6599\uFF0FLibrary of Congress \u7ED3\u6784\u5316\u9986\u85CF API",
    "evidence_grade": "documentation_only",
    "attachments": [
      {
        "material_id": "material-6cd373d3fc42092e90122d32bd5534a7",
        "source_url": "https://www.loc.gov/apis/json-and-yaml/requests/",
        "content_sha256": "dfe568eff34c53094e65e59583ebb676b1ed5a25d0d9129d4df70f5ad54de23d",
        "decoded_bytes": 44126,
        "content_type": "text/html",
        "captured_at": "2026-10-24T18:14:59.9381216\u002B00:00",
        "text_representation": "decoded_text_utf8",
        "text_utf8_sha256": "dfe568eff34c53094e65e59583ebb676b1ed5a25d0d9129d4df70f5ad54de23d",
        "text_utf8_bytes": 44126,
        "capture_body_reconstructed": true,
        "read_path": "/api/v1/capabilities/cap-cbb410cfe25f2f11e40bf36b/materials/material-6cd373d3fc42092e90122d32bd5534a7?version=1"
      }
    ]
  },
  "last_correction": {
    "contribution_id": "contribution-fd5ef87401e24bb481e62861569b8c13",
    "reason": "\u4EC5\u4F9D\u636E\u672C\u6B21\u5DF2\u4FDD\u5B58\u5B98\u65B9\u516C\u5F00\u6B63\u6587\u6574\u7406\u7528\u9014\u3001\u5165\u53E3\u3001\u6761\u4EF6\u548C\u672A\u77E5\u9879\uFF1B\u4FDD\u7559\u539F\u6587\u8BC1\u636E\uFF0C\u4E0D\u5C06\u8BF4\u660E\u6587\u6863\u5192\u5145\u5B9E\u9645\u63A5\u901A\u3001\u529F\u80FD\u5B9E\u6D4B\u6216\u53EF\u7528\u6027\u4FDD\u8BC1\u3002",
    "source_urls": [
      "https://www.loc.gov/apis/json-and-yaml/requests/"
    ],
    "reported_by": "contributor"
  },
  "version_read_basis": "archived_revision",
  "deep_read": {
    "schema_version": "navonavo.capability-read.v1",
    "card_id": "cap-cbb410cfe25f2f11e40bf36b",
    "card_version": 2,
    "selected_profile_id": null,
    "state": "not_checked",
    "review_state": null,
    "read_url": "https://navonavo.com/api/v1/capabilities/cap-cbb410cfe25f2f11e40bf36b?version=2",
    "page_url": "https://navonavo.com/capabilities/cap-cbb410cfe25f2f11e40bf36b?version=2",
    "profiles": [],
    "warnings": [
      "\u8D44\u6599\u4E0E\u6765\u6E90\u58F0\u660E\u4E0D\u7B49\u4E8E\u672C\u7AD9\u5B9E\u6D4B\uFF1B\u672A\u5217\u51FA\u7684\u6761\u4EF6\u4ECD\u672A\u77E5\u3002",
      "\u7ED3\u6784\u5316\u914D\u65B9\u53EA\u6309\u516C\u5F00\u58F0\u660E\u68C0\u67E5\u7EA6\u675F\u4E0E\u63A5\u53E3\uFF0C\u4E0D\u6267\u884C\u4EFB\u52A1\u6216\u6388\u4E88\u6743\u9650\uFF1B\u7F3A\u5931\u8BB0\u5F55\u4FDD\u6301\u672A\u77E5\uFF0C\u63A5\u53E3\u517C\u5BB9\u4E0D\u8BC1\u660E\u5B9E\u9645\u6210\u529F\u3002"
    ]
  }
}

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