Tavily Search

https://api.sandbase.ai/v1/api/tavily/search

AI-optimized web search for agents and RAG: ranked results with titles, URLs and relevant content, depth control, news and finance topics, domain filters and an optional generated answer.

Price
$0.01USD / callFirst 100 calls per day free (shared per organization)
Method
POST
Response
JSON
Parameters
1 required · 7 optional
Production route

Try the model

Playground

Open playground
Input
The search query.
Depth of search. 'advanced' returns more comprehensive results. Allowed values: basic, advanced.
120
Maximum number of results to return. Range: 1 to 20.
Topic category to focus the search. Allowed values: general, news, finance.
Include an LLM-generated answer summarizing the results.
Include the full raw page content for each result.
Only include results from these domains.
Exclude results from these domains.
OutputExample
Responseoutputs · 6.3 KB · 76 lines
[
  {
    "answer": null,
    "follow_up_questions": null,
    "images": [],
    "query": "手性钙钛矿 圆偏振拉曼 手性声子 谱学",
    "request_id": "fe5b9736-01fb-42b2-9b8b-a39592ae7002",
    "response_time": 0.81,
    "results": [
      {
        "content": "文章概述:  近日,北京师范大学的张文凯教授团队以R/S-α-甲基苄胺(R/S-MBA)为手性配体制备了手性钙钛矿(R/S-MBA)2PbI4,并以外消旋体钙钛矿(Rac-MBA)2PbI4为对照,结合圆偏振瞬态吸收(circularly polarized transient absorption, CTA)光谱、泵浦光强依赖和温度依赖实验,深入探究了手性钙钛矿激子自旋弛豫时间延长的物理机制。研究发现,手性钙钛矿相较外消旋体展现出更高的初始自旋极化率:(手性钙钛矿(R/S-MBA)2PbI4为11.3%/11.6%,外消旋体(Rac-MBA)2PbI4仅6.9%)和显著延长的自旋弛豫寿命(手性钙钛矿可达427/497 ps,外消旋体仅22 [...] 文章概述:  近日,北京师范大学的张文凯教授团队以R/S-α-甲基苄胺(R/S-MBA)为手性配体制备了手性钙钛矿(R/S-MBA)2PbI4,并以外消旋体钙钛矿(Rac-MBA)2PbI4为对照,结合圆偏振瞬态吸收(circularly polarized transient absorption, CTA)光谱、泵浦光强依赖和温度依赖实验,深入探究了手性钙钛矿激子自旋弛豫时间延长的物理机制。研究发现,手性钙钛矿相较外消旋体展现出更高的初始自旋极化率:(手性钙钛矿(R/S-MBA)2PbI4为11.3%/11.6%,外消旋体(Rac-MBA)2PbI4仅6.9%)和显著延长的自旋弛豫寿命(手性钙钛矿可达427/497 ps,外消旋体仅22 [...] 近日,北京师范大学的张文凯教授团队以R/S-α-甲基苄胺(R/S-MBA)为手性配体制备了手性钙钛矿(R/S-MBA)2PbI4,并以外消旋体钙钛矿(Rac-MBA)2PbI4为对照,结合圆偏振瞬态吸收(circularly polarized transient absorption, CTA)光谱、泵浦光强依赖和温度依赖实验,深入探究了手性钙钛矿激子自旋弛豫时间延长的物理机制。研究发现,手性钙钛矿相较外消旋体展现出更高的初始自旋极化率:(手性钙钛矿(R/S-MBA)2PbI4为11.3%/11.6%,外消旋体(Rac-MBA)2PbI4仅6.9%)和显著延长的自旋弛豫寿命(手性钙钛矿可达427/497 ps,外消旋体仅22 ps)。通过结合温度依赖实验、对相干光学声子振荡的分析,证实手性钙钛矿具有更强的激子-声子耦合作用,其黄昆-里斯因子高于外消旋体,这种强耦合效应能诱导更强的动态极化子屏蔽效应,弱化激子中电子-空穴的库仑相互作用,从而实现自旋弛豫时间的延长。该研究揭示了晶格手性调控自旋弛豫的核心机制,为通过调控钙钛矿手性实现自旋弛豫寿命的控制提供了重要实验依据和理论指导。",
        "id": "4f61ca-00",
        "raw_content": null,
        "score": 0.7004242,
        "title": "AOM | 北京师范大学张文凯团队:晶格手性通过增强激子-声子耦合延长二维钙钛矿中激子的退极化时间—论文—科学网",
        "url": "https://news.sciencenet.cn/htmlpaper/2026/8/2026817101520646154394.shtm"
      },
      {
        "content": "将手性有机阳离子引入到钙钛矿量子阱中,赋予了二维钙钛矿本征手性,使钙钛矿圆偏振光探测成为了可能。然而,二维钙钛矿的强电子-声子耦合,导致材料的",
        "id": "52ea47-01",
        "raw_content": null,
        "score": 0.6350646,
        "title": "袁明鉴课题组:手性准二维钙钛矿圆偏振光电探测器 - 南开大学化学学院",
        "url": "https://chem.nankai.edu.cn/2020/0301/c24075a359161/page.htm"
      },
      {
        "content": "手性声子(chiral phonon)是携带角动量的晶格集体振动模式。当原子位移在一个振动周期内沿椭圆(包括圆)轨迹运动时,声子具有非零的声子角动量L_ph != 0",
        "id": "ab16cf-02",
        "raw_content": null,
        "score": 0.5463757,
        "title": "手性声子的非弹性中子散射诊断偏振态、手性方向与声子磁矩",
        "url": "https://developer.cloud.tencent.com/article/2723167"
      },
      {
        "content": "手性是指一个物体不能与其镜像重合,其来源于材料本征的反转对称结构。通过在钙钛矿无机框架中插入手性分子,可以获得手性钙钛矿。根据无机卤素八面体与手性有机长链阳离子的空间分布,手性钙钛矿可以具有三维、二维和一维等结构。手性钙钛矿结合了杂化钙钛矿材料优异的光学、电学和光电特性以及手性分子的手性特征,具有优异的圆二色性(circular dichroism,CD)、圆偏振光致发光(circularly polarized photoluminescence,CPL)、铁电性、自旋、二次谐波等特性。图 1展示了不同维度手性钙钛矿的结构和性能。手性钙钛矿为新一代光电和自旋器件应用设计和发展提供了完美的材料支撑,在光学信息处理、量子光学、生物探测等领域展现出巨大的应用潜力[16, 23‐25]。\n\n  ## 图 1\n\n   \n\n  图 1.   手性钙钛矿的晶体结构和优异特性\n\n  Figure 1.   Crystal structures and outstanding behaviors of chiral perovskite [...] of (iso‐BA)2PbI4, (BA)2PbI4, (S‐MBA)2PbI4, (iso‐BA)2PbI4/WSe2, (BA)2PbI4/WSe2, (S‐MBA)2PbI4/WSe2, and monolayer WSe2; (f) CPL spectra of (S‐MBA)2PbI4/WSe2 heterostructure excited by σ- or σ+ [...] between the two Rashba‐split bands, chiral perovskites are promising for chiro‐spintronic and chiro‐optoelectronic applications. Chiral perovskites can be sorted as one‐dimensional, two‐dimensional, and three‐dimensional structures according to the space distributions of organic and inorganic components. This work demonstrates the crystal structure, and optical and optoelectronic properties of chiral perovskite of different dimensionalities, including the circular dichroism, the",
        "id": "244b9e-03",
        "raw_content": null,
        "score": 0.5379402,
        "title": "手性钙钛矿的结构维度与光电特性",
        "url": "http://www.ccspublishing.org.cn/article/doi/10.11862/CJIC.2022.133"
      },
      {
        "content": "手性(Chirality)是自然界中一种普遍存在的非对称属性: 手性声子则是一类特殊的圆偏振晶格振动模式,携带非零角动量,类似于电磁波中的圆偏振光。 加速偏振",
        "id": "f3435e-04",
        "raw_content": null,
        "score": 0.46599558,
        "title": "关联物质研究中心:手性声子的对称性分类理论与材料数据库",
        "url": "https://physics.zju.edu.cn/2026/0430/c69694a3157802/page.htm"
      },
      {
        "content": "手性二维钙钛矿是一类具有非中心对称结构的低维钙钛矿材料,兼具低维钙钛矿和手性材料的优点,可用于产生非线性光学效应.通过高压技术可以实现低维钙钛矿各种光学性质的",
        "id": "55b9a3-05",
        "raw_content": null,
        "score": 0.27178755,
        "title": "高压调控手性二维钙钛矿光学性质",
        "url": "https://www.opticsjournal.net/Articles/OJ1d4177c69697dd27/FullText"
      },
      {
        "content": "摘要:手性二维钙钛矿是一类具有非中心对称结构的低维钙钛矿材料,兼具低维钙钛矿和手性材料. 的优点,可用于产生非线性光学效应。通过高压技术可以实现低维钙钛矿各种",
        "id": "c252b9-06",
        "raw_content": null,
        "score": 0.25368112,
        "title": "[PDF] 高压调控手性二维钙钛矿光学性质 - Researching",
        "url": "https://www.researching.cn/ArticlePdf/m00018/2022/51/7/20220211.pdf"
      },
      {
        "content": "Advanced Search\n\nEurekAlert! Science News   A service of the American Association for the Advancement of Science\n\nEurekAlert! Science News   A service of the American Association for the Advancement of Science\n\n Home\n News Releases\n Multimedia\n Meetings\n\n Login\n Register\n\nNews Release\n\n# 绘制手性钙钛矿的纳米级“自旋图像”\n\nPeer-Reviewed Publication\n\nScience China Press\n\n绘制手性钙钛矿调控电子自旋图像 \n\nimage: 借助开尔文探针力显微镜,科研团队可视化展示了手性钙钛矿如何调控电子自旋,为下一代自旋电子学器件的设计提供新思路。 view more\n\nCredit: ©《中国科学》杂志社 [...] 手性卤化物钙钛矿因其能够调控电子自旋而备受关注,这一特性被称为手性诱导自旋选择效应(CISS)。借助该效应,这类材料能够在室温下同时调控电荷、自旋和光学特性,因此在光电-自旋电子学领域展现出巨大潜力。通过利用半导体中载流子的自旋自由度,有望显著提升信息存储与传输效率,尤其在量子计算和类脑计算等前沿领域,受控的自旋极化电流有望推动信息处理方式的革命性变革。\n\n然而,尽管手性钙钛矿展现出广阔前景,CISS效应在微观尺度上的研究依然面临挑战。传统表征方法虽能检测该效应,却难以揭示其材料的空间分布特征。\n\n为突破这一瓶颈,中国科学院宁波材料技术与工程研究所、香港科技大学以及美国国家可再生能源实验室的研究团队联合开发了一套自制的开尔文探针力显微镜(KPFM)系统。该系统能够在不同磁场条件下扫描同一区域的手性钙钛矿薄膜,从而获得纳米级的“自旋图像”,清晰呈现CISS效应的强度与空间均匀性。\n\n研究同时发现,在手性钙钛矿与金属电极界面处会形成自旋-肖特基结。在这种界面结构中,电子的传输势垒会因自旋取向的不同而发生变化,为理解界面自旋相关过程提供了新的物理图景。 [...] 进一步分析表明,薄膜的手性分子、厚度以及制备工艺等因素都会影响自旋选择效应的强度。此外,研究人员还观察到薄膜内部存在纳米级空间不均匀性,揭示其可能是限制器件性能的重要因素。\n\n这项工作建立了一种无损、定量的手性钙钛矿自旋选择效应表征方法,并为深入理解其纳米尺度机理提供了新框架。研究结果不仅揭示了材料设计中的关键考量,也为手性钙钛矿在未来自旋电子学和光电子学器件中的优化应用奠定了基础。\n\n---\n\n#### Journal\n\nNational Science Review\n\n#### DOI\n\n10.1093/nsr/nwaf295\n\nDisclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.",
        "id": "3a160d-07",
        "raw_content": null,
        "score": 0.19260046,
        "title": "绘制手性钙钛矿的纳米级“自旋图像” | EurekAlert!",
        "url": "https://www.eurekalert.org/news-releases/1100058?language=chinese"
      }
    ]
  }
]

Examples

Select an example to load its inputs and result into the playground.

Model card

Specifications

Pricing

Base price
$0.01 / run
Daily free calls
First 100 calls per day free (shared per organization)

Request & response

Method
POST
Request body
application/json
Response
application/json
Execution
sync

Parameters

query
string · required
search_depth
string (basic, advanced) · optional
max_results
integer · optional
topic
string (general, news, finance) · optional
include_answer
boolean · optional
include_raw_content
boolean · optional
include_domains
array · optional
exclude_domains
array · optional

Access

Provider
Tavily
API
Platform API
Base URL
https://api.sandbase.ai
Endpoint
/v1/api/tavily/search
Authentication
Bearer API key

API README

Tavily Search API

Tavily returns search results already cleaned for LLMs: each result has a title, URL, relevant content snippet and score. Optionally get a short generated answer or the raw page content.

Use cases

  • Give agents real-time web access.
  • Build RAG pipelines on fresh sources.
  • Research news or financial topics.

Request

curl -X POST "https://api.sandbase.ai/v1/api/tavily/search" \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"query": "OpenAI Codex documentation", "max_results": 3}'

Parameters

NameTypeRequiredDescription
querystringYesThe search query.
topicstringNoTopic category to focus the search.
max_resultsintegerNoMaximum number of results to return.
search_depthstringNoDepth of search. 'advanced' returns more comprehensive results.
include_answerbooleanNoInclude an LLM-generated answer summarizing the results.
exclude_domainsarrayNoExclude results from these domains.
include_domainsarrayNoOnly include results from these domains.
include_raw_contentbooleanNoInclude the full raw page content for each result.

Example response

Real response for the request above, trimmed to the main fields. User names and long IDs are masked.

{
  "query": "OpenAI Codex documentation",
  "results": [
    {
      "title": "Documentation and implementation of Open AI's new Codex model - API -…",
      "url": "https://community.openai.com/t/documentation-and-implementation-of-op…",
      "content": "# Documentation and implementation of Open AI's new Codex model  Hi,  I am look…",
      "score": 0.8624794
    }
  ],
  "response_time": 1.18
}

Notes

  • search_depth: basic or advanced (more comprehensive).
  • Set include_answer to true for an LLM-generated summary.

Start building

Send your first request

Platform API endpoint with unified authentication and usage tracking.

Production API
Platform API endpoint
https://api.sandbase.ai/v1/api/tavily/search
Authorization header
Authorization: Bearer $SANDBASE_API_KEY
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
  -X POST "https://api.sandbase.ai/v1/api/tavily/search" \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  --data-binary @- <<'SANDBASE_JSON'
{
  "query": "手性钙钛矿 圆偏振拉曼 手性声子 谱学",
  "topic": "general",
  "max_results": 8,
  "search_depth": "basic",
  "include_answer": true,
  "include_domains": [
    "openai.com"
  ],
  "include_raw_content": false
}
SANDBASE_JSON
)
printf '%s\n' "$result"

Explore more

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Questions

FAQ

How do I use the Tavily Search API?

Send a POST request to https://api.sandbase.ai/v1/api/tavily/search with your SandBase API key in the Authorization header (Bearer) and the parameters as a JSON body. You can also try it in the Playground on this page without writing code.

How much does the Tavily Search API cost?

$0.01 per call. Every organization gets 100 free calls per UTC day, shared across eligible SandBase APIs including this one; after that each call is billed at this price from your SandBase balance. There is no subscription.

What parameters does the Tavily Search API accept?

Required: query (string). Optional: search_depth (one of basic, advanced), max_results (integer), topic (one of general, news, finance), include_answer (boolean), include_raw_content (boolean) and include_domains (array) and 1 more. The Parameters table and the Playground on this page list every field.

What does the Tavily Search API return?

A JSON response returned in the same HTTP request (synchronous). The README on this page includes a sample response.

Do I need a Tavily developer account or API key?

No. Tavily Search runs through SandBase, so one SandBase API key covers this endpoint and every other API and model in the catalog. You do not need to apply for Tavily API access separately.