Free Stock Market News API
A Practical Guide如何选择免费股票市场新闻 API
Find a free stock market news API, compare the limits that matter, and validate ticker-filtered JSON before building your app or agent.
查找可免费试用的股票市场新闻接口,比较额度、延迟、历史、情绪与许可,并在接入应用或 Agent 前验证按股票代码筛选的 JSON。
What a free stock market news API should deliver免费股票市场新闻 API 应完成哪些任务
This page targets stock-specific monitoring: map articles to the correct listed issuer, recognize market-moving events, control duplicates, and deliver timely alerts around trading sessions. It deliberately excludes broad macro-news comparison and Python client architecture except where those details affect ticker-event accuracy.
本页聚焦股票专属监控:把文章映射到正确的上市发行人,识别可能影响行情的事件,控制重复报道,并围绕交易时段及时告警。除非某项细节直接影响股票代码与事件准确性,否则不展开广义宏观新闻对比或 Python 客户端架构。
Require exchange-aware symbols, issuer IDs, aliases, listing dates, and handling for renamed, dual-listed, and delisted companies.
要求接口提供带交易所语义的代码、发行人 ID、别名、上市日期,并能处理更名、跨市场上市和退市公司。
Test earnings, guidance, filings, analyst actions, corporate actions, M&A, and halt-related stories with known examples.
用已知案例测试财报、指引、申报、分析师行动、公司行动、并购和停牌相关新闻。
Measure publisher-to-API delay and classify results as premarket, regular-session, after-hours, or stale carryover.
测量媒体发布到 API 收录的延迟,并把结果归为盘前、盘中、盘后或陈旧延续。
Choose a stock-news API by event and entity accuracy按公司实体与市场事件准确性选择股票新闻 API
Test ambiguous tickers and company aliases
Use symbols that collide with common words, dual-listed companies, renamed issuers, and tickers reused after delisting. A stock-news API should return exchange and issuer identifiers, not attach every text mention to a symbol through string matching alone.
Measure event coverage around the market calendar
Run fixed queries around earnings, guidance changes, SEC filings, analyst actions, dividends, splits, M&A, and trading halts. Record publisher time, ingestion time, event type, and whether the result arrived before or after the relevant session.
Separate relevance, novelty, and sentiment
An article can mention a company without being materially about it, repeat an old story, or contain mixed sentiment. Prefer distinct relevance, novelty or duplicate-group, and sentiment fields with documented scoring methods.
Preserve the primary market evidence
Distinguish SEC filings, exchange notices, issuer releases, and regulator statements from wire stories and publisher analysis. Keep both records when reporting adds useful context, but cite the primary document for factual claims such as guidance, corporate actions, or halt status.
Track corrections as events
A changed headline is not always a new story. Require stable article or cluster IDs, original and updated timestamps, and correction or retraction status. If a material correction arrives after an alert, propagate it to downstream users instead of only replacing the stored text.
Measure source and market blind spots
Compare large and small issuers, domestic and foreign listings, English and non-English sources, and quiet versus earnings-heavy weeks. High headline volume can hide weak coverage of smaller companies, local publishers, or exchange notices that matter to the intended watchlist.
测试容易混淆的股票代码与公司别名
使用与普通单词重合的代码、跨市场上市公司、已更名发行人,以及退市后被重新使用的代码。股票新闻 API 应返回交易所和发行人标识,不能只靠字符串匹配把所有文本提及都绑定到股票代码。
围绕市场日历测量事件覆盖
围绕财报、指引变化、SEC 申报、分析师评级、股息、拆并股、并购和停牌运行固定查询。记录媒体发布时间、接口收录时间、事件类型,以及结果出现在相关交易时段之前还是之后。
区分相关性、新颖性与情绪
文章可能只是顺带提到公司,也可能重复旧闻,或同时包含正负信息。应优先选择分别提供相关性、新闻新颖性或重复分组、情绪字段且说明评分方法的接口。
保留一手市场证据
区分 SEC 文件、交易所公告、公司新闻稿和监管声明,与通讯社报道及媒体分析。媒体解读具有上下文价值时可以同时保留,但涉及业绩指引、公司行动或停牌状态等事实,应优先引用原始文件。
把更正作为独立事件处理
标题变化不一定代表新文章。需要稳定的文章或新闻簇 ID、原始与更新时间,以及更正或撤稿状态。重大更正在提醒发出后到达时,应继续通知下游用户,而不是只替换数据库中的旧文本。
测量来源与市场盲区
分别测试大型与小型发行人、本地与海外上市、英文与非英文来源,以及消息清淡周与财报密集周。新闻总量很高,仍可能掩盖对小公司、本地媒体或目标自选股所需交易所公告的覆盖不足。
| Check检查项 | Questions to answer要回答的问题 | Evidence证据 |
|---|---|---|
| Entity mapping实体映射 | Ticker, exchange, issuer ID, aliases, listing dates?股票代码、交易所、发行人 ID、别名与上市日期? | Ambiguous-symbol test set歧义代码测试集 |
| Event taxonomy事件分类 | Earnings, filings, ratings, corporate actions, M&A, halts?财报、申报、评级、公司行动、并购和停牌? | Event-tag precision sample事件标签准确性样本 |
| Market timing市场时点 | Publisher and ingestion time relative to session?媒体和收录时间相对交易时段如何? | Premarket, session, and after-hours log盘前、盘中与盘后记录 |
| Relevance相关性 | Is the issuer central to the story or merely mentioned?发行人是新闻主体还是仅被提及? | Manually labeled relevance sample人工标注的相关性样本 |
| Novelty新颖性 | Are syndicated and updated copies grouped correctly?转载和更新版本是否正确分组? | Canonical story and duplicate-group IDs规范新闻与重复分组 ID |
| Alert readiness告警能力 | Stable cursor, webhook or poll cadence, correction events?稳定游标、Webhook 或轮询频率、纠正事件? | End-to-end alert replay端到端告警重放 |
Worked alert example: one event, three articles, four timestamps告警实例:一个事件、三篇报道与四个时间点
Suppose a company posts updated guidance at 07:02 ET, a wire service publishes a story at 07:05, and a partner site republishes that story at 07:11. The API ingests the issuer release at 07:04 and both media copies at 07:13. These are three article records but only one underlying guidance event. A useful pipeline preserves every source, groups the two syndicated stories under a canonical story ID, links the issuer release as primary evidence, and emits one alert whose first-known time is 07:02—not three alerts weighted as independent confirmation.
假设某公司在美东时间 07:02 发布新的业绩指引,通讯社在 07:05 发稿,合作媒体又在 07:11 转载;接口在 07:04 收录公司公告,并在 07:13 收录两篇媒体报道。系统拿到了三条文章记录,但底层只有一个指引事件。合理的处理方式是保留全部来源,把两篇转载归入同一规范新闻簇,以公司公告作为一手证据,并只生成一条告警;事件的首次可知时间应是 07:02,不能把三篇文章当作三个相互独立的确认信号。
If the company corrects the revenue range at 08:20, store that as a new version of the same event with its own source and availability time. Users who received the first alert need an explicit correction notification. For research and backtests, keep at least source_published_at, provider_ingested_at, first_seen_at, and corrected_at; choosing the earliest timestamp from a later copy would leak information and overstate alert speed.
如果公司在 08:20 更正收入区间,应把它保存为同一事件的新版本,并记录新的来源与可用时间;已经收到首次告警的用户还需要明确的更正通知。研究与回测至少应保留 source_published_at、provider_ingested_at、first_seen_at 和 corrected_at。若事后从转载记录中挑选一个更早时间回填,会造成信息泄漏,也会夸大告警速度。
Test a free stock market news API response测试免费股票市场新闻 API 的响应
Keep the API key outside source code
Load the key from an environment variable. Set a finite timeout and avoid printing secrets in logs or notebooks.
Validate status, content type, and fields
Raise on HTTP errors, confirm JSON content, and reject items that lack the minimum fields your application requires.
Handle pagination and rate limits explicitly
Follow documented cursors, respect 429 and Retry-After, deduplicate by stable URL or provider ID, and preserve source timestamps.
Normalize an auditable article record
Store issuer and security IDs, exchange, event type, source type, canonical URL, publication and ingestion timestamps, language, relevance, novelty group, and provider version. Keep optional sentiment separate and preserve the raw-response reference so an agent answer can be traced back to evidence.
Replay a realistic alert workload
Run the target watchlist through premarket, regular, and after-hours sessions for several days. Measure event recall, wrong-entity and duplicate rates, correction delay, freshness percentiles, cursor gaps, and quota headroom. Include retries and backfills in capacity calculations.
不要把 API Key 写进源码
从环境变量读取密钥,设置合理的超时时间,不要在日志或 Notebook 中输出密钥。
验证状态码、内容类型和字段
遇到 HTTP 错误时立即停止处理,确认返回内容为 JSON,并拒绝缺少应用必需字段的新闻记录。
明确处理分页和限流
遵循文档中的游标,处理 429 与 Retry-After,按固定 URL 或文章 ID 去重,并保留来源时间戳。
统一为可审计的文章记录
保存发行人和证券 ID、交易所、事件类型、来源类型、规范 URL、发布与收录时间、语言、相关性、重复新闻簇和供应商版本。情绪属于可选字段,应独立保存,并保留原始响应引用,让 Agent 回答可以回溯到证据。
重放真实的提醒负载
连续数日让目标自选股覆盖盘前、正常交易时段与盘后,测量事件召回、实体误关联率、重复率、更正延迟、新鲜度分位数、游标缺口与额度余量。容量计算还要包括重试和历史回补。
import os
import requests
url = "https://provider.example/v1/stock-news"
response = requests.get(
url,
headers={"Authorization": f"Bearer {os.environ['STOCK_NEWS_API_KEY']}"},
params={"symbols": "AAPL", "language": "en", "limit": 10},
timeout=20,
)
response.raise_for_status()
payload = response.json()
for article in payload.get("results", []):
required = {"title", "published_at", "source_url"}
if not required.issubset(article):
raise ValueError("Unexpected stock news schema")
print(article["published_at"], article["title"])The hostname and field names are illustrative so the example does not invent a QVeris or provider endpoint. Replace them with the selected provider's current documentation.
域名和字段名仅用于说明通用请求结构,避免虚构 QVeris 或服务商端点;请按所选服务商的当前文档替换。
How QVeris helps with stock market news API discoveryQVeris 如何帮助发现股票市场新闻 API 能力
QVeris helps agents discover callable capabilities and inspect their inputs and outputs. It does not guarantee that a provider is free, real-time, complete, or licensed for every use; those facts must be verified against current provider documentation.
QVeris 帮助 Agent 发现可调用能力并检查输入输出,但不保证服务商免费、实时、完整或适用于所有用途;这些事实必须以服务商当前文档为准。
- Open the QVeris tool details for financial or stock news capabilities.
- Inspect authentication, ticker parameters, result fields, and error behavior before connecting a workflow.
- Use the QVeris Python SDK documentation for the supported QVeris integration pattern.
- 在 QVeris 工具详情中搜索股票市场新闻或股票新闻能力。
- 接入工作流前检查鉴权、股票代码参数、返回字段和错误行为。
- 参考 QVeris Python SDK 文档了解受支持的接入方式。
FAQ
Yes. Some services expose a free tier or trial. Compare quota, delay, history, fields, supported markets, attribution, and commercial-use rules before choosing one.
Send an authenticated request, pass a ticker or query, check the HTTP status, validate JSON fields, and handle pagination and rate limits.
Many finance-specific APIs expose ticker filters, but symbol formats and exchange mapping differ. Confirm parameters and test a known symbol in the current documentation.
Sometimes. Free history is often limited by date range, result count, or delayed access. Do not assume that a free current-news endpoint includes an archive.
Some return sentiment, entities, or relevance scores; others return raw articles only. Check field definitions, confidence, methodology, and supported languages.
RSS can suit permitted headline monitoring, but an API is usually easier for ticker filters, pagination, normalized JSON, history, and structured enrichment.
有些服务提供免费套餐或试用。选择前应比较配额、延迟、历史、字段、市场覆盖、署名和商用规则。
发送经过身份验证的请求,传入股票代码或查询词,检查 HTTP 状态,验证 JSON 字段,并处理分页和限流。
很多金融专用 API 支持按股票代码筛选,但代码格式和交易所映射各不相同。应根据当前文档确认参数,并使用已知代码测试。
有时可以。免费历史数据通常受日期范围、结果数量或访问延迟限制,不能假设当前新闻端点同时提供完整档案。
有些 API 返回情绪、实体或相关性分数,另一些只返回原始文章。应检查字段定义、置信度、计算方法和支持的语言。
RSS 适合在许可范围内监控标题;如需股票代码筛选、分页、标准化 JSON、历史数据和结构化增强字段,API 通常更方便。
Authoritative references权威参考资料
Provider plans change. Use current documentation as evidence and treat this page as an evaluation workflow, not a promise about a specific free allowance.
服务商套餐会变化,应以当前文档为证据;本页提供评估流程,不承诺某个具体免费额度长期有效。
