Web search & extraction网页搜索与提取
For current policies, product changes, public research, and source-grounded answers.适合最新政策、产品变化、公开研究与有来源依据的回答。
Select for: citations, domain filters, freshness重点：引用、域名过滤、时效性
Capability-first field guide按能力选型的实战指南
Best APIs to Use with Doubao for AI Workflows适合豆包 AI 工作流的最佳 API
The best API is the one that supplies the missing capability—fresh evidence, private knowledge, or a controlled action—through a narrow schema your application can validate.真正合适的 API，应当补足豆包缺少的能力：最新证据、私有知识或可控操作，并通过应用能够校验的窄 Schema 接入。
Start with one read-only tool. Add web search for current facts, retrieval for internal knowledge, business-system APIs for records, communications APIs for drafted messages, or market-data APIs for time-sensitive analysis. Keep credentials and execution outside the model.先从一个只读工具开始。最新事实用搜索，内部知识用检索，业务记录用企业系统 API，消息草稿用通信 API，时效分析用市场数据；密钥和实际执行始终留在模型之外。
The shortlist能力清单
Five API roles worth adding to Doubao最值得接入豆包的五类 API
These are capability categories, not a universal vendor ranking. Choose only the categories that change a measurable workflow outcome.以下按能力分类，并非放之四海而皆准的厂商排名。只有当某项能力能改善可衡量结果时，才值得接入。
RAG & vector retrievalRAG 与向量检索
For manuals, policies, tickets, and controlled private corpora that prompts cannot hold.适合手册、制度、工单，以及 Prompt 无法承载的受控私有语料。
Select for: metadata filters, ACLs, reranking重点：元数据过滤、ACL、重排Business systems业务系统
For CRM, ERP, support, inventory, and project records—read first, write with approval.适合 CRM、ERP、客服、库存与项目记录；先读后写，写入需批准。
Select for: scopes, idempotency, audit logs重点：权限范围、幂等、审计日志Email & messaging邮件与消息
For drafting, routing, and sending notifications after a person confirms recipient and content.用于起草、路由和发送通知；收件人与正文应由人工确认。
Select for: preview, templates, delivery state重点：预览、模板、投递状态Market & domain data市场与行业数据
For quotes, filings, risk checks, weather, logistics, or other time-sensitive structured facts.适合行情、公告、风险核查、天气、物流等时效性结构化事实。
Select for: timestamps, provenance, coverage重点：时间戳、来源、覆盖范围
Concrete candidates具体候选项
APIs that pair well with Doubao—by workflow按工作流选择适合豆包的 API
“Best” depends on the missing capability and operating boundary. The candidates below are useful starting points, not an absolute ranking. Verify regional availability, pricing, data rights, and current limits before committing.“最佳”取决于缺失能力和运行边界。以下是有代表性的起点，而非绝对排名；正式选型前需核对区域可用性、价格、数据权利及当前限制。
Tavily Search API
WEB EVIDENCE网页证据A practical fit when Doubao must answer questions using current web sources. Its documented search endpoint supports domain and date controls, result limits, and optional parsed content.适合让豆包基于最新网页来源回答问题。官方搜索端点支持域名与日期控制、结果上限及可选解析内容。
- Best for: research briefs, monitoring, cited answers适合：研究简报、监控、有引用的回答
- Check: source quality, response size, freshness filters检查：来源质量、响应大小、时效过滤
Pinecone Database API
PRIVATE RAG私有 RAGA managed option for storing and querying retrieval records when Doubao needs grounded access to manuals, policies, or knowledge bases. Keep document permissions in metadata and enforce them before retrieval.当豆包需要基于手册、制度或知识库作答时，可用于托管检索记录。文档权限应进入元数据，并在检索前强制执行。
- Best for: semantic retrieval, tenant-isolated corpora适合：语义检索、租户隔离语料
- Check: namespace design, metadata filters, deletion lifecycle检查：Namespace、元数据过滤、删除生命周期
Slack Web API
TEAM ACTIONS团队协作Useful for reading permitted workspace context or sending an approved summary. Treat every post as a consequential write: show the channel, recipient, and final message before execution.适合读取获准的工作区上下文，或发送已经批准的摘要。每次发送都应视为高影响写入：执行前展示频道、收件人和最终正文。
- Best for: support triage, incident briefs, handoffs适合：客服分流、事故简报、工作交接
- Check: app scopes, workspace installation, retry semantics检查：应用权限、工作区安装、重试语义
Alpha Vantage API
MARKET DATA市场数据A possible starting point for market-data prototypes and structured quote lookups. Never describe a quote as real time without checking the endpoint, subscription, market, timestamp, and licensing terms.可作为市场数据原型和结构化行情查询的起点。未核对端点、订阅、市场、时间戳和许可条款前，不应把行情描述为实时。
- Best for: quote summaries, indicators, research prototypes适合：行情摘要、指标、研究原型
- Check: delay, rate limits, exchange and commercial rights检查：延迟、频率限制、交易所与商业使用权
What about CRM, ERP, email, weather, or local Chinese services?CRM、ERP、邮件、天气或中国本地服务怎么办？
Use the same selection test: does the API expose the exact task, return structured evidence, support least-privilege credentials, and behave predictably under timeout? If the provider or endpoint may change by region, search the QVeris capability directory by the job you need instead of hard-coding a brand too early.沿用同一套判断：API 是否提供准确任务能力、返回结构化证据、支持最小权限凭据，并在超时情况下表现可预测？如果服务商或端点会因区域变化，可先按任务在 QVeris 能力目录中检索，避免过早绑定品牌。
Decision matrix决策矩阵
Match the API to the job—not the demo按任务选 API，不按 Demo 选
| Workflow need工作流需求 | Best first API role首选 API 角色 | Required control必备控制 | Success evidence成功证据 |
|---|---|---|---|
| Answer a current question回答最新问题 | Search + page extraction搜索 + 网页提取 | Allowed domains, result cap, source date域名白名单、结果上限、来源日期 | Claims map to reachable sources结论能映射到可访问来源 |
| Answer from internal policy依据内部制度回答 | Permission-aware retrieval感知权限的检索 | Document ACL, tenant filter, chunk IDs文档 ACL、租户过滤、片段 ID | No unauthorized document appears不出现越权文档 |
| Summarize a customer account汇总客户账户 | Read-only CRM只读 CRM | Exact account ID, field allowlist精确账户 ID、字段白名单 | Summary traces to record IDs摘要可追溯到记录 ID |
| Send a follow-up发送跟进消息 | Messaging API消息 API | Preview, approval, idempotency key预览、批准、幂等键 | One approved delivery with status仅一次已批准投递并有状态 |
| Analyze a live market event分析实时市场事件 | Domain data + filings行业数据 + 公告 | Timestamp, venue, licensing boundary时间戳、市场、许可边界 | Inputs remain dated and attributable输入包含日期且来源明确 |
Implementation pattern实现模式
Doubao proposes; your application decides豆包提出调用，应用负责决策
Volcano Engine's official Ark documentation demonstrates tool calling. The safe production interpretation is that a model-generated call is structured intent—not permission to execute.火山方舟官方文档给出了工具调用方式。生产环境中应把模型生成的调用理解为“结构化意图”，而不是执行授权。
Declare narrow tools声明窄工具
Expose a task verb such as get_order_status, not an unrestricted HTTP client.暴露 get_order_status 这类任务动作，而不是无限制 HTTP 客户端。
Validate arguments校验参数
Reject unknown fields, untrusted destinations, oversized values, and missing identity context.拒绝未知字段、不可信目的地、超长值以及缺失的身份上下文。
Authorize and execute授权并执行
Apply user and tenant policy, then call the API with server-held credentials and bounded retries.先应用用户与租户策略，再使用服务端密钥和有限重试调用 API。
Return evidence返回证据
Send compact structured results, source IDs, timestamps, and explicit error states back to the model.把精简结构化结果、来源 ID、时间戳及明确错误状态返回模型。
const proposal = await doubao.respond({ messages, tools:
[get_order_status] }); if (proposal.tool_call) { const args =
schema.parse(proposal.arguments); policy.authorize(user,
"orders:read", args.order_id); const result = await
orders.getStatus(args, { timeout: 5000, requestId }); return
doubao.respond({ messages: [...messages, proposal, result],
instruction: "Cite record ID and retrieved_at" }); }
Tool contract工具契约
Design the schema before choosing the vendor先设计 Schema，再选择服务商
A Doubao workflow becomes easier to test when the model sees a stable business function while the provider-specific adapter stays behind it. This keeps prompts unchanged if you replace a search, CRM, or market-data vendor.让豆包看到稳定的业务函数，把服务商适配器藏在其后，工作流会更容易测试。未来替换搜索、CRM 或市场数据服务商时，无需重写 Prompt。
| Contract element契约要素 | Good pattern推荐模式 | Avoid避免 |
|---|---|---|
| Name名称 |
search_approved_sources,
get_customer_summary
|
call_api, run_request |
| Arguments参数 | Enums, bounded strings, explicit IDs, date ranges枚举、限长字符串、明确 ID、日期范围 | Arbitrary URLs, free-form SQL, model-selected recipients任意 URL、自由 SQL、由模型选择收件人 |
| Result结果 | Stable fields plus source_id and retrieved_at稳定字段并包含 source_id、retrieved_at | Raw unbounded HTML or undocumented provider payloads无限长原始 HTML 或未记录的服务商负载 |
| Errors错误 | Typed retryable, denied, not-found, and unknown states明确区分可重试、拒绝、未找到和未知状态 | Returning every failure as an empty result把所有失败都返回为空结果 |
The adapter should also normalize units, time zones, identifiers, and pagination. Give Doubao only the fields needed for the decision; retain the full provider response in controlled logs when policy permits.适配器还应统一单位、时区、标识符和分页。只把完成决策所需字段交给豆包；在策略允许时，将完整服务商响应保留在受控日志中。
Production controls生产控制
What separates a useful tool from a risky endpoint好工具与高风险端点的分界
Least privilege最小权限
Use workflow identities and read-only scopes first. Never place API keys in prompts or retrieved text.优先使用工作流专用身份和只读权限，绝不把 API Key 放进 Prompt 或检索文本。
Prompt-injection boundaryPrompt Injection 边界
Treat pages, documents, emails, and API responses as data; they cannot rewrite tool policy.网页、文档、邮件和 API 响应都只是数据，不能改写工具策略。
Cost & latency budgets成本与延迟预算
Cap tool calls, records, payload size, retries, and total wall-clock time per request.限制每次请求的工具调用数、记录数、负载、重试和总耗时。
Idempotent writes幂等写入
A timeout is an unknown state. Reconcile by request ID before retrying a write.超时代表状态未知；任何写入重试前，都应按请求 ID 核对远端状态。
Human approval人工批准
Preview and approve messages, payments, deletion, deployment, and any consequential change.消息、支付、删除、部署及其他高影响变更，都应先预览再批准。
Traceable evidence可追溯证据
Log tool name, normalized inputs, policy decision, source, result ID, time, and reviewer action—without secrets.记录工具名、标准化输入、策略决策、来源、结果 ID、时间与审核动作，但不记录密钥。
Worked patterns场景示例
Two stacks that make the boundaries visible两种边界清晰的工作流组合
Evidence brief证据简报
A researcher asks about a recent regulatory change. Search is restricted to regulator domains; extraction preserves URL and publication date; Doubao synthesizes only retrieved evidence; a validator rejects unsupported claims.研究员询问近期监管变化。搜索仅允许监管机构域名；提取环节保留 URL 与发布日期；豆包只综合已获取证据；校验器拒绝无来源结论。
SEARCH → EXTRACT → SYNTHESIZE → VERIFY
Customer follow-up客户跟进
A rep selects one account. A read-only CRM tool returns allowed fields; Doubao drafts a message; the rep confirms recipient and copy; the mail API sends once with an idempotency key and records delivery state.销售选择一个客户账户。只读 CRM 工具返回允许字段；豆包起草消息；销售确认收件人与正文；邮件 API 使用幂等键仅发送一次，并记录投递状态。
READ → DRAFT → APPROVE → SEND → RECONCILE
Evaluation playbook评估流程
Validate one Doubao API workflow in four phases分四阶段验证一个豆包 API 工作流
Do not start by connecting every candidate. Use one repeatable task with known answers and failure cases, then promote the integration only when the evidence supports it.不要一开始就连接所有候选 API。先选择一个有已知答案和失败样例的可重复任务，只有证据充分时才推进集成。
Define the outcome定义结果
Write the decision the workflow must support, acceptable sources, freshness window, forbidden actions, and a no-tool baseline.明确要支持的决策、可接受来源、时效窗口、禁止动作，并建立无工具基线。
Test the contract测试契约
Run valid, missing, oversized, ambiguous, unauthorized, and prompt-injected inputs against the schema and policy layer.用有效、缺失、超长、含糊、越权及 Prompt Injection 输入测试 Schema 与策略层。
Measure end to end端到端测量
Record task accuracy, citation validity, tool-selection precision, latency, provider errors, retries, and total cost per completed task.记录任务准确性、引用有效性、工具选择精度、延迟、服务商错误、重试和单任务总成本。
Set a release gate设置上线门槛
Require owners for credentials and incidents, documented rollback, alert thresholds, audit retention, and approval for consequential writes.明确密钥与事故负责人、回滚方式、告警阈值、审计留存，并对高影响写入设置批准。
Score the workflow, not the API in isolation评估工作流，而不是孤立评估 API
An API with strong standalone relevance can still be a poor Doubao tool if its schema is unstable, responses are too large, errors are ambiguous, or the required permissions exceed the task. Keep separate scores for answer quality, controllability, operational reliability, and data rights. Do not average away a security failure.即使某个 API 独立检索效果很好，如果 Schema 不稳定、响应过大、错误含糊或权限超过任务需要，它仍可能不是合适的豆包工具。应分别评分答案质量、可控性、运行可靠性和数据权利，不能用平均分掩盖安全失败。
Failure modes失败模式
What breaks first—and how to fix the boundary常见故障及边界修复方式
Doubao chooses the wrong tool豆包选错工具Descriptions overlap or expose provider jargon.工具描述重叠，或充满服务商术语。Rename by business intent, separate read and write tools, and
add contrasting examples.按业务意图命名，拆分读写工具，并加入对比例子。
Answers cite stale evidence答案引用过期证据Retrieval lacks timestamps or mixes cached and live
data.检索缺少时间戳，或混用缓存和实时数据。Require retrieved_at and source dates; reject records outside
the task freshness window.要求 retrieved_at
与来源日期，拒绝超出任务时效窗口的记录。
A timeout causes duplicate writes超时造成重复写入The application retries before reconciling remote
state.应用未核对远端状态便直接重试。Use idempotency keys and query by request ID before any
consequential retry.使用幂等键；任何高影响重试前先按请求 ID 查询。
RAG leaks another tenant's recordRAG 泄露其他租户记录Authorization is applied after vector retrieval.在向量检索后才做授权判断。Apply tenant and document ACL filters before retrieval and
test negative cases continuously.检索前应用租户和文档 ACL，并持续测试负面样例。
Costs grow without better answers成本上升但答案未改善Too many results, verbose payloads, or repeated calls.结果过多、负载冗长或重复调用。Cap results, normalize responses, cache only stable data, and
stop the loop when evidence is sufficient.限制结果数、标准化响应、仅缓存稳定数据，并在证据充分时终止循环。
When one provider is enough—and when routing helps何时单一服务商足够，何时需要能力路由
Direct REST or SDK integration is usually simplest for one stable API with strict latency or compliance needs. When the workflow needs changing capabilities across providers, a routing layer can discover candidates, inspect schemas and operating signals, then call a selected tool. QVeris documents this as a Discover → Inspect → Call loop. You can browse matching capabilities in the QVeris tool directory before wiring a Doubao tool adapter.对于单一、稳定且延迟或合规要求严格的 API，REST 或 SDK 直连通常最简单。如果工作流需要跨服务商动态选择能力，路由层可以先发现候选项、检查 Schema 与运行信号，再调用选定工具。QVeris 将其定义为 Discover → Inspect → Call 循环。你可以先在 QVeris 工具目录查找匹配能力，再为豆包接入工具适配层。
FAQ
Questions about APIs for Doubao豆包外部 API 常见问题
Can Doubao call external APIs?豆包能调用外部 API 吗？
Models available through Volcano Engine Ark can produce structured tool calls when tools are declared. Your application should validate the arguments, authorize the action, execute the API, and return the result. Support can vary by model and endpoint, so check the current official documentation.通过火山方舟提供的模型，可在声明工具后生成结构化工具调用。应用应负责参数校验、操作授权、API 执行和结果回传。不同模型与端点的支持情况可能不同，应以最新官方文档为准。
What is the best first API for a Doubao workflow?豆包工作流最适合先接哪个 API？
Start with one read-only API that supplies evidence the model cannot reliably know, such as current official information or a narrowly scoped internal record. Measure whether it improves answer accuracy or task completion before adding more tools.先接入一个只读 API，提供模型无法可靠掌握的证据，例如最新官方信息或范围明确的内部记录。先衡量它是否改善答案准确性或任务完成率，再增加其他工具。
Should I expose an entire provider API to Doubao?是否应该把服务商的整套 API 暴露给豆包？
No. Wrap broad APIs in a small set of task-specific functions with strict schemas. A smaller tool surface improves selection, limits accidental access, and makes evaluation practical.不应该。应把宽泛 API 封装成少量任务专用函数，并使用严格 Schema。更小的工具面有助于准确选择、限制意外访问，也更容易评测。
Do I need MCP to use APIs with Doubao?豆包接 API 必须使用 MCP 吗？
No. Direct REST or SDK integration is often the cleanest choice for one application-owned API. MCP can help when the same tool definitions need to be reused across compatible clients, but it does not replace authorization, validation, or business policy.不必须。对于由单个应用维护的 API，REST 或 SDK 直连往往更清晰。当同一组工具定义需要跨兼容客户端复用时，可考虑 MCP；但它不能替代授权、校验与业务策略。
How should I compare API providers?应该如何比较 API 服务商？
Use a task-specific test set and compare coverage, source provenance, schema stability, latency, failure behavior, authorization controls, regional availability, licensing, and total cost. Avoid choosing from a generic leaderboard that does not match your workflow.用贴合任务的测试集比较覆盖范围、来源可追溯性、Schema 稳定性、延迟、失败语义、授权控制、区域可用性、许可和总成本。不要依赖与实际工作流无关的通用排行榜。
Official references官方参考资料
Product behavior should be rechecked before production deployment: Volcano Engine Ark tool calling, Ark ChatCompletions API reference, and QVeris API and SDK documentation.上线前应重新核对产品行为：火山方舟工具调用、方舟 ChatCompletions API 参考以及 QVeris API 与 SDK 文档。