{ "data": { "a": { "slug": "tiingo", "name": "Tiingo", "vendor": "Tiingo Inc.", "vendorUrl": "https://www.tiingo.com", "kind": "http-api", "category": "market-data", "summary": "Tiingo is a market data API from Tiingo Inc. for end-of-day and real-time US equity prices, fund fees, fundamentals, dividends and splits, news, crypto and forex, over REST and WebSocket. Agents call api.tiingo.com with an account token.", "url": "https://www.anchorterminal.com/tools/tiingo", "markdownUrl": "https://www.anchorterminal.com/tools/tiingo.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/tiingo.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/tiingo.json", "dns": "tiingo.grade.anchorterminal.com", "transports": [ "http", "websocket" ], "remoteUrl": "https://api.tiingo.com", "packages": [], "auth": "api-key", "authNotes": "One API token of about 75 characters per account, from the account page after a browser signup. The connecting guide accepts it as `?token=` in the URL or as an `Authorization: Token \u003ctoken\u003e` header; WebSocket subscriptions carry it as `authToken` in the subscribe message. The token can be rotated on the account token page (added per the changelog of 12 May 2026). No scopes or expiry found.", "pricing": "freemium", "pricingNotes": "Starter plan free at 50 requests an hour, 1,000 a day, 1 GB a month and 500 unique symbols a month, internal use only; no card requirement stated. Power plan $30 a month at 10,000 requests an hour, 100,000 a day, 40 GB and all 110,424 symbols, also internal use only. Fundamentals are a separate add-on through a third-party provider, priced by email; commercial, redistribution and white-label licences by contact (https://www.tiingo.com/pricing, checked 2026-11-03).", "priceSummary": "$30 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the documentation, llms.txt or pricing (checked 2026-11-03). A call without a token returns HTTP 403 with `{\"detail\":\"Please supply a token\"}`.", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-11-03" }, "docsUrl": "https://www.tiingo.com/documentation/general/overview", "llmsTxt": "https://www.tiingo.com/llms.txt", "capabilities": [ "market.prices", "market.history", "market.news", "market.fundamentals", "market.crypto", "data.markets" ], "tags": [ "hosted", "freemium", "api-key", "llms-txt", "status-page", "free-tier", "closed-source", "stocks", "crypto", "forex", "streaming", "personal-use" ], "lastRelease": "2026-10-09", "graded": true, "anchor": { "graded": true, "score": 46.2, "grade": "D", "agentReady": false, "rank": 1118, "ranked": true, "rankOf": 1349, "categoryRank": 9, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 56, "maintenance": 50, "payments": 30, "reliability": 60, "schema": 39, "security": 32, "transparency": 57 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "low", "date": "2026-11-03" }, "negative": 0, "verdict": "A dated changelog since 2017, a one-year support commitment after breaking changes, an Instatus status page and a free token at 1,000 requests a day. The token is documented in the URL, no OpenAPI document, error reference, SDK or MCP server exists, and the terms and privacy policy sit on a host that refused our reader.", "bestFor": "Agents that need clean US end-of-day composites with dividend and split adjustments, fund fees and news on a cheap plan, and anyone who values a long changelog.", "strengths": [ "Changelog dated by entry from 2017 to 9 October 2026, and a stated one-year support window after a breaking change", "Status page on Instatus with 13 components and a notice history", "Limits in requests an hour, a day and bandwidth a month, with no per-second throttle, and token rotation on the account page", "Free Starter token at 1,000 requests a day, and a $30 a month Power plan published without login", "llms.txt and llms-full.txt served for agents, with product routing notes" ], "weaknesses": [ "The connecting guide documents the token as `?token=` in the URL alongside the header", "No OpenAPI document, no documented error responses, no official SDK and no MCP server", "Terms and privacy policy on app.tiingo.com answered 403 to every request, so neither was read", "Both self-serve plans are internal use only; display, redistribution and white-label need a negotiated licence", "Blue Ocean ATS endpoints were down for about 10 hours on 21 October 2026, and the status history starts on 21 September 2026" ], "agentNotes": [ "Send the token as `Authorization: Token \u003ctoken\u003e`, not as `?token=` in the URL", "Ask for `format=csv` on large price pulls; the docs say CSV is 4 to 5 times faster than JSON, and bandwidth counts against the monthly cap", "Count requests an hour and a day, not per second; 50 an hour on Starter, 10,000 on Power, reset on the hour and at midnight ET", "Expect 403 `{\"detail\":\"Please supply a token\"}` without a token; other error shapes are undocumented, so log the body", "Use dashes in share classes (BRK-A), and fetch supported_tickers.zip rather than guessing symbols" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "low", "grade": "D", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 46.2 } ], "editorialScores": { "ergonomics": 56, "maintenance": 50, "payments": 30, "reliability": 60, "schema": 39, "security": 32, "transparency": 28 }, "provenanceScore": 86, "checked": { "categories": { "ergonomics": "2026-11-03", "maintenance": "2026-11-03", "payments": "2026-11-03", "reliability": "2026-11-03", "schema": "2026-11-03", "security": "2026-11-03", "transparency": "2026-11-03" }, "last": "2026-11-03", "oldest": "2026-11-03", "stale": false, "staleAfterDays": 90 } }, "connect": { "http": "curl -H \"Authorization: Token $TIINGO_TOKEN\" \"https://api.tiingo.com/tiingo/daily/aapl/prices?startDate=2025-11-03\u0026format=csv\"" }, "letme": { "capability": "https://letme.dev/market.prices", "tool": "https://letme.dev/tiingo" }, "area": "domain-data", "unitPrices": [ { "item": "Power, 10,000 requests an hour", "unit": "month", "usd": 30, "note": "internal use only, 100,000 requests a day, 40 GB a month" } ], "provenance": { "legalEntity": "Tiingo Inc.", "domain": "tiingo.com", "domainRegistered": "2011-03-04", "endpointOnVendorDomain": true, "terms": "https://app.tiingo.com/terms", "privacy": "https://app.tiingo.com/privacy", "statusPage": "https://status.tiingo.com", "changelog": "https://www.tiingo.com/documentation/general/changelog", "securityTxt": "none", "checked": "2026-11-03", "notes": [ "Tiingo Inc. appears in the copyright line of the about page, which gives Alexandria, VA. No registration number or address was found on a page we could read.", "www.tiingo.com/privacy redirects to app.tiingo.com/privacy, and app.tiingo.com/terms is the terms address; app.tiingo.com answered 403 to every request from our reader and from curl, so neither document was read.", "www.tiingo.com/robots.txt disallows only /admin. The developer programme page forbids programmatic registration or login and wrapping the login form; nothing read forbids reading the website.", "RDAP gives tiingo.com a registration date of 4 March 2011 at GoDaddy.", "/.well-known/security.txt on www.tiingo.com redirects (301) and api.tiingo.com returns 404, so none.", "The status page is Instatus at status.tiingo.com, named in llms.txt with uptime.tiingo.com as an audited uptime page." ], "score": 86 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/tiingo.json", "live": { "slug": "tiingo", "probe": { "target": "https://api.tiingo.com", "method": "get", "lastAt": "2026-11-04T20:05:30.255404738Z", "lastOk": true, "lastStatus": 200, "lastMs": 523, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 494, "p95ms24h": 587, "samples24h": 48, "samples30d": 48, "days": [ { "date": "2026-11-04", "probes": 48, "ok": 48 } ] }, "vendorStatus": { "page": "https://status.tiingo.com", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-11-04T15:32:39.454553229Z" }, "securityTxt": { "url": "https://tiingo.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-11-04T15:54:24.456607715Z" }, "updatedAt": "2026-11-04T20:05:30.255404738Z" } }, "answer": "Twelve Data scores 70 (BB) on agent readiness against Tiingo's 46.2 (D), and leads in 6 of 7 scored categories.", "b": { "slug": "twelve-data", "name": "Twelve Data", "vendor": "Twelve Data Pte. Ltd.", "vendorUrl": "https://twelvedata.com", "kind": "http-api", "category": "market-data", "summary": "Twelve Data is a market data API for prices and time series across stocks, ETFs, funds, forex, crypto and commodities, with technical indicators, fundamentals, news and filings. Agents call the REST API, the WebSocket or the hosted MCP server.", "url": "https://www.anchorterminal.com/tools/twelve-data", "markdownUrl": "https://www.anchorterminal.com/tools/twelve-data.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/twelve-data.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/twelve-data.json", "dns": "twelve-data.grade.anchorterminal.com", "repo": "https://github.com/twelvedata/mcp", "transports": [ "http", "streamable-http", "stdio", "websocket" ], "remoteUrl": "https://api.twelvedata.com", "packages": [ { "registry": "pypi", "name": "twelvedata" }, { "registry": "npm", "name": "twelvedata" } ], "auth": "mixed", "authNotes": "REST and WebSocket take an API key from the dashboard, sent as an `Authorization: apikey \u003ckey\u003e` header (the docs call it recommended) or as `?apikey=`. The hosted MCP server does not accept keys; it uses OAuth 2.1 at auth.twelvedata.com with authorisation code and PKCE, refresh tokens, Client ID Metadata Documents or dynamic client registration, one scope `twelvedata`, a required `resource` parameter and a revocation endpoint. The user signs in with a Twelve Data account. No key scopes or expiry found.", "pricing": "freemium", "pricingNotes": "Basic plan free at 8 API credits a minute and 800 a day with real-time US equities, forex and crypto, no card. Individual plans Grow from $29, Pro from $99 and Ultra from $329 a month (55, 610 and 2,584 credits a minute at the lowest tier, up to $999 for 10,946), annual billing 17 per cent less. Business plans Venture from $149 and Enterprise $1,099 a month, Enterprise+ by quote. Most endpoints cost one credit per symbol; fundamentals and analysis cost more (https://twelvedata.com/pricing.md, checked 2026-11-03).", "priceSummary": "$29 / mo", "where": "both", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the OpenAPI document, llms.txt, pricing.md, auth.md or the MCP docs (checked 2026-11-03). A call without a key returns HTTP 401 with a JSON `code`, `message` and `status`.", "endpoints": [] }, "toolCount": 27, "popularity": { "githubStars": 791, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-11-03" }, "docsUrl": "https://twelvedata.com/docs", "llmsTxt": "https://twelvedata.com/llms.txt", "openapi": "https://api.twelvedata.com/doc/swagger/openapi.json", "capabilities": [ "market.prices", "market.history", "market.fundamentals", "market.crypto", "market.indices", "market.news", "market.filings", "data.markets" ], "tags": [ "hosted", "freemium", "api-key", "oauth", "mcp", "remote-mcp", "openapi", "llms-txt", "status-page", "soc2", "sla", "no-card", "free-tier", "closed-source", "python", "typescript", "go", "java", "stocks", "forex", "crypto", "streaming", "personal-use" ], "lastRelease": "2026-10-12", "graded": true, "anchor": { "graded": true, "score": 70, "grade": "BB", "agentReady": true, "rank": 197, "ranked": true, "rankOf": 1349, "categoryRank": 2, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 84, "maintenance": 82, "payments": 30, "reliability": 83, "schema": 83, "security": 54, "transparency": 67 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-11-03" }, "negative": 0, "verdict": "A public OpenAPI 3.1 document with error responses on all 187 operations, Markdown docs and pricing for agents, a status page with two short incidents in 90 days, and an MCP server behind OAuth 2.1. The REST key still travels in the query string as a documented option, no enums are declared, and free and individual plans forbid company use.", "bestFor": "Agents that need prices and time series across many exchanges and asset classes with one contract, CSV output, and a documented error table.", "strengths": [ "OpenAPI 3.1 for 187 operations with eight documented response codes each, plus llms.txt, pricing.md and auth.md for agents", "Status page with component history, two incidents of 20 and 16 minutes in the 90 days to 3 November 2026", "Hosted MCP server on OAuth 2.1 with PKCE, resource indicators and token revocation, and 27 read-only tools in the open source", "Official SDKs for Python, Node.js, Go, Java and R, a CLI, and monthly dated product updates", "Free Basic plan at 800 credits a day with no card, and plan prices published without login" ], "weaknesses": [ "The REST docs and OpenAPI accept the key as `?apikey=` in the query string alongside the header", "No parameter in the OpenAPI document declares an enum; interval and type values are listed in Markdown only", "Free and individual plans are for internal, non-commercial use; any company, team or fund needs a business plan from $149 a month", "No Retry-After or backoff guidance on the documented 429", "The open-source MCP repository ships no licence file, and its local HTTP mode serves /mcp with no authentication by default" ], "agentNotes": [ "Send the key as `Authorization: apikey \u003ckey\u003e`, not in the URL; the hosted MCP server takes OAuth only, so never paste a key into a connector's key field", "Set `outputsize` (1 to 5,000, default 30) and `format=CSV` on time_series to keep responses small, and read `status` in the JSON body since errors come with HTTP codes and a `message`", "Count credits, not calls; most endpoints cost one credit per symbol and the Basic plan allows 8 a minute and 800 a day, with 429 when exceeded", "A 403 means the key's plan lacks the endpoint or symbol, not a bad key; check pricing.md before escalating", "Use trial symbols from twelvedata.com/exchanges to test premium data on the free plan" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "BB", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 70 } ], "editorialScores": { "ergonomics": 84, "maintenance": 82, "payments": 30, "reliability": 83, "schema": 83, "security": 54, "transparency": 50 }, "provenanceScore": 83, "checked": { "categories": { "ergonomics": "2026-11-03", "maintenance": "2026-11-03", "payments": "2026-11-03", "reliability": "2026-11-03", "schema": "2026-11-03", "security": "2026-11-03", "transparency": "2026-11-03" }, "last": "2026-11-03", "oldest": "2026-11-03", "stale": false, "staleAfterDays": 90 } }, "connect": { "install": "pip install twelvedata", "http": "curl -H \"Authorization: apikey $TWELVE_DATA_API_KEY\" \"https://api.twelvedata.com/time_series?symbol=AAPL\u0026interval=1day\u0026outputsize=30\"", "config": { "mcpServers": { "twelvedata": { "url": "https://mcp.twelvedata.com/mcp" } } } }, "letme": { "capability": "https://letme.dev/market.prices", "tool": "https://letme.dev/twelve-data" }, "area": "domain-data", "unitPrices": [ { "item": "Grow, 55 credits a minute", "unit": "month", "usd": 29, "note": "individual, internal use, lowest Grow tier" }, { "item": "Pro, 610 credits a minute", "unit": "month", "usd": 99, "note": "individual, lowest Pro tier" }, { "item": "Ultra, 2,584 credits a minute", "unit": "month", "usd": 329, "note": "individual, lowest Ultra tier" }, { "item": "Venture, 610 credits a minute", "unit": "month", "usd": 149, "note": "business, external display" }, { "item": "Enterprise, 10,946 credits a minute", "unit": "month", "usd": 1099, "note": "business, external distribution, 99.99 per cent SLA" } ], "provenance": { "legalEntity": "Twelve Data Pte. Ltd.", "domain": "twelvedata.com", "domainRegistered": "2019-07-11", "endpointOnVendorDomain": true, "terms": "https://twelvedata.com/terms", "privacy": "https://twelvedata.com/privacy", "statusPage": "https://twelvedata.isitup.cloud", "changelog": "https://twelvedata.com/news", "securityTxt": "none", "checked": "2026-11-03", "notes": [ "The terms, last updated 1 January 2026, name Twelve Data Pte. Ltd. (UEN 202006058W) under Singapore law with SIAC arbitration. Section 2.3(h) forbids automated tools used to exceed rate limits; nothing forbids reading the website.", "The privacy policy, last updated 22 September 2026, gives the Singapore address, retention of 2 years for account data, 7 years for financial records and 1 year for usage data, and names Azure, Stripe, PayPal, Cloudflare, Intercom, Segment, CookieYes, Google Analytics and Microsoft Clarity.", "twelvedata.com/robots.txt disallows /api/, /docs/search, /docs/url/convert and account paths; the docs, pricing, terms and privacy pages are allowed.", "RDAP gives twelvedata.com a registration date of 11 July 2019 at GoDaddy.", "/.well-known/security.txt and /security.txt return 404. twelvedata.com/security returns 404; the trust centre is security.twelvedata.com on SafeBase.", "The status page is hosted by Isitup at twelvedata.isitup.cloud and is linked from llms.txt. The news page carries monthly product updates and is the nearest thing to a changelog." ], "score": 83 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/twelve-data.json", "live": { "slug": "twelve-data", "probe": { "target": "https://api.twelvedata.com", "method": "get", "lastAt": "2026-11-04T20:05:31.658945822Z", "lastOk": true, "lastStatus": 404, "lastMs": 176, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 146, "p95ms24h": 219, "samples24h": 48, "samples30d": 48, "days": [ { "date": "2026-11-04", "probes": 48, "ok": 48 } ] }, "vendorStatus": { "page": "https://twelvedata.isitup.cloud", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-11-04T15:32:39.97677279Z" }, "securityTxt": { "url": "https://twelvedata.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-11-04T15:54:50.370188865Z" }, "updatedAt": "2026-11-04T20:05:31.658945822Z" } }, "edges": [ { "by": 44, "category": "schema", "leads": "twelve-data", "name": "Schema \u0026 documentation", "reasons": { "a": "No OpenAPI document or MCP server was found (0 of 25). llms.txt and llms-full.txt are served, with product routing and licence notes (10). Each documentation page states the endpoint's purpose and timing, such as prices after 5.30 pm ET with corrections to 8 pm, with little on when not to use it (12 of 20). Parameters and response fields are tabled with names and meanings, but types, defaults and allowed values are partly in prose (8 of 15). Examples in Python, Node and PHP on every page; no error responses documented (7 of 15). A changelog dated by entry since 2017 and a one-year support commitment after breaking changes, with no version in the path (12 of 15). 0 + 10 + 12 + 8 + 7 + 12 = 39.", "b": "A public OpenAPI 3.1 document covers 187 operations, every one with a description and 200, 400, 401, 403, 404, 414, 429 and 500 responses, and the MCP tools in the source carry typed inputs and annotations (25). llms.txt on the site and in the docs link Markdown pages per section, pricing.md and auth.md (10). Descriptions state purpose, plan requirement and credit cost, with little on when not to use an endpoint (16 of 20). Required parameters are marked and the Markdown lists interval, adjust and type values, but none of the 3,091 parameters in the spec declares an enum (9 of 15). Examples with a demo key on every endpoint and an error table with codes and meanings (13 of 15). No version in the path, a spec at version 0.0.1, and monthly dated product updates on the news page rather than an API changelog (10 of 15). 25 + 10 + 16 + 9 + 13 + 10 = 83." }, "scores": { "a": 39, "b": 83 } }, { "by": 32, "category": "maintenance", "leads": "twelve-data", "name": "Maintenance \u0026 community", "reasons": { "a": "Read as a closed service. The changelog's newest entry is 9 October 2026 (30). Entries dated 9 October and 8 September 2026 fall in the last 90 days, with 21 July just outside, and the status page adds a maintenance window on 28 September (12 of 20). A dated changelog, a support address and a blog, with the developer programme promising priority email support (8 of 15). No official SDK (0 of 15). No package to assess (0 of 10). 30 + 12 + 8 + 0 + 0 = 50.", "b": "Read as a closed service. The newest dated change is the product update of 12 October 2026, with the MCP repository changed on 1 October and the world-model dataset repository on 31 October (30). Monthly updates dated 12 August, 12 September and 12 October 2026 (20). A monthly changelog, a support portal, a sales contact and a Telegram channel; replies on the MCP repository's issues were not read (10 of 15). Six official SDKs and a CLI, twelvedata-python at v1.4.0 of 27 April 2026 (15). The MCP server pins its dependencies with reasons and ships tests; the Python SDK's changelog stops at version 0.1 (7 of 10). 30 + 20 + 10 + 15 + 7 = 82." }, "scores": { "a": 50, "b": 82 } }, { "by": 28, "category": "ergonomics", "leads": "twelve-data", "name": "Agent ergonomics", "reasons": { "a": "`startDate`, `endDate`, `resampleFreq`, `format=csv` and column selection on some endpoints size responses; no field selection on end-of-day prices (15 of 25). Date ranges throughout and limit and offset on news, no cursor (15 of 20). Errors are undocumented; a missing token answered 403 with a JSON `detail` field in our one test call (3 of 20). Every call is a read (16 of 20). Few required parameters, but no official SDK; the docs point to third-party packages (7 of 15). 15 + 15 + 3 + 16 + 7 = 56.", "b": "The REST API is the surface graded. `outputsize` 1 to 5,000 with a default of 30, `format=CSV`, `dp`, date ranges and batch requests size responses, and the MCP server lists 27 tools (20 of 25). Date ranges, `outputsize` and exchange, country and type filters, with no cursor pagination (15 of 20). Error codes with meanings an agent can branch on, 403 for plan limits and 429 for credits (16 of 20). Every operation is a read, and the MCP source marks tools readOnlyHint (18 of 20). Few required parameters, a demo key, and official SDKs in Python, Node.js, Go, Java and R (15). 20 + 15 + 16 + 18 + 15 = 84." }, "scores": { "a": 56, "b": 84 } }, { "by": 23, "category": "reliability", "leads": "twelve-data", "name": "Reliability", "reasons": { "a": "Read with the hosted lines. A public status page on Instatus at status.tiingo.com lists 13 components with a notice history (20). The history in the 90 days to 3 November 2026 shows a 9 hour 59 minute outage of the Blue Ocean ATS endpoints on 21 October, a WebSocket issue on 21 September and two maintenance windows, with nothing recorded before 21 September; a long outage of one niche feed rather than the core price API (15). Limits are published with numbers, 50 and 10,000 requests an hour, 1,000 and 100,000 a day and 1 GB and 40 GB a month (15). No 429, Retry-After or backoff guidance was found (0). No SLA found (0). The end-of-day, news, crypto and forex APIs are generally available, while Equity Realtime and BOATS are in beta (10). 20 + 15 + 15 + 0 + 0 + 10 = 60.", "b": "Read with the hosted lines. A public status page at twelvedata.isitup.cloud lists Price API, Fundamentals API, WebSocket and Website with uptime figures (20). Its history shows two incidents in the 90 days to 3 November 2026, 20 minutes of unavailability across the three APIs on 1 September and 16 minutes on the WebSocket on 14 October, minor only (20). Limits are published with numbers, credits a minute by plan from 8 to 10,946 and 800 a day on Basic (15). The docs document a 429 on the limit and the usage endpoint, with no Retry-After or backoff guidance; reads only (8 of 15). The terms sell a 99.9 per cent SLA with service credits, and the Enterprise plan carries 99.99 per cent (10). The REST API and MCP server are generally available (10). 20 + 20 + 15 + 8 + 10 + 10 = 83." }, "scores": { "a": 60, "b": 83 } }, { "by": 22, "category": "security", "leads": "twelve-data", "name": "Security \u0026 auth", "reasons": { "a": "One token per account with no scopes, documented as `?token=` in the URL or an Authorization header, with rotation on the account page since May 2026 (20 less 10 for the query string, plus 2 for rotation, so 12). Every endpoint is a read (15 of 20). News is third-party text and no guidance was found (5 of 15). A usage page shows hourly and daily requests and bandwidth, not a per-call log (0 of 15, no log). security.txt redirects on www and is absent on api, and no disclosure policy, bug bounty or certification was found (0 of 20). 12 + 15 + 5 + 0 + 0 = 32.", "b": "The REST key is a plain per-account key with no scopes, accepted as a header or as `?apikey=` (20 less 10 for the query string). The hosted MCP server refuses keys and uses OAuth 2.1 with PKCE, a resource indicator, refresh tokens, revocation and one scope, which lifts the credential model for that surface (18 of 30). Every operation is a read (15 of 20). Company news is third-party text and no guidance was found (5 of 15). An `/api_usage` endpoint and dashboard usage give the key holder a view of consumption, not a per-call log (6 of 15). A trust centre on SafeBase lists SOC 2, GDPR and CCPA and ten policies; no security.txt, disclosure process or bug bounty was found (10 of 20). 18 + 15 + 5 + 6 + 10 = 54." }, "scores": { "a": 32, "b": 54 } }, { "by": 10, "category": "transparency", "leads": "twelve-data", "name": "Transparency \u0026 trust", "reasons": { "a": "A closed service whose terms sit on app.tiingo.com, which answered 403 to every request, so they were not read; the pricing and documentation pages define internal, commercial and redistribution licences (8 of 30). The privacy policy is on the same host and was not read (0 of 30). The developer programme commits to a year of continued support after a breaking change, with changes posted in the changelog and emailed to registered developers, and the changelog's 9 October 2026 entry describes a changed default for prevClose (16 of 20). Equinix hosting is named on the about page, with no processor list or data location (4 of 20). 8 + 0 + 16 + 4 = 28.", "b": "A closed service under terms that name the entity, define internal use, business use and redistribution, and were last updated 1 January 2026; the MCP repository is open source but ships no licence file (15 of 30). The privacy policy of 22 September 2026 states retention periods and names its processors, the terms require data deletion within 30 days of termination, and no DPA is named (20 of 30). No deprecation policy or notice period; the terms allow changes and the monthly updates record them after the fact (3 of 20). Subprocessors are named on the privacy policy and the trust centre, with no data locations beyond transfer mechanisms (12 of 20). 15 + 20 + 3 + 12 = 50." }, "scores": { "a": 57, "b": 67 } } ], "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "Tiingo Inc.", "b": "Twelve Data Pte. Ltd.", "name": "Vendor" }, { "a": "https://api.tiingo.com", "b": "https://api.twelvedata.com", "name": "Hosted endpoint" }, { "a": "HTTP, websocket", "b": "HTTP, Streamable HTTP, stdio, websocket", "name": "Transports" }, { "a": "API key", "b": "OAuth or key", "name": "Auth" }, { "a": "Freemium", "b": "Freemium", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "none", "b": "27", "name": "Tools exposed" }, { "a": "no", "b": "yes", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "2026-10-09", "b": "2026-10-12", "name": "Last release" }, { "a": "couldn't be read", "b": "2026-01-01", "name": "Terms last updated" }, { "a": "2026-02-18", "b": "2026-09-22", "name": "Privacy policy last updated" }, { "a": "couldn't be read", "b": "not found in the text", "name": "Customer content may train models" }, { "a": "couldn't be read", "b": "not found in the text", "name": "Terms restrict automated access" }, { "a": "couldn't be read", "b": "yes", "name": "Terms restrict benchmarking" }, { "a": "couldn't be read", "b": "yes", "name": "Terms or service can change without notice" }, { "a": "couldn't be read", "b": "yes", "name": "Arbitration or class-action waiver" }, { "a": "none", "b": "791 stars", "name": "Popularity" } ], "faq": [ { "answer": "Twelve Data scores 70 (BB) on agent readiness against Tiingo's 46.2 (D), and leads in 6 of 7 scored categories.", "question": "Which is better for AI agents, Tiingo or Twelve Data?" }, { "answer": "Tiingo needs an API key. Twelve Data takes an API key or an OAuth sign-in.", "question": "Do Tiingo and Twelve Data need an API key?" }, { "answer": "Yes. Tiingo has a hosted endpoint at https://api.tiingo.com and Twelve Data at https://api.twelvedata.com.", "question": "Can an agent call Tiingo and Twelve Data without installing anything?" } ], "goodFor": [ { "aheadOn": null, "also": null, "goodFor": "Agents that need clean US end-of-day composites with dividend and split adjustments, fund fees and news on a cheap plan, and anyone who values a long changelog.", "slug": "tiingo", "watchFor": "The connecting guide documents the token as `?token=` in the URL alongside the header" }, { "aheadOn": [ "Reliability, 83 against 60", "Schema \u0026 documentation, 83 against 39", "Agent ergonomics, 84 against 56", "Security \u0026 auth, 54 against 32", "Maintenance \u0026 community, 82 against 50", "Transparency \u0026 trust, 67 against 57" ], "also": [ "Agent-ready, a grade of BB or better", "Runs on your own machine", "Free to start without a card" ], "goodFor": "Agents that need prices and time series across many exchanges and asset classes with one contract, CSV output, and a documented error table.", "slug": "twelve-data", "watchFor": "The REST docs and OpenAPI accept the key as `?apikey=` in the query string alongside the header" } ], "history": null, "job": { "capability": "market.prices", "name": "Market prices" }, "others": [ { "json": "https://www.anchorterminal.com/compare/alpha-vantage-vs-tiingo.json", "title": "Alpha Vantage vs Tiingo", "url": "https://www.anchorterminal.com/compare/alpha-vantage-vs-tiingo" }, { "json": "https://www.anchorterminal.com/compare/alpha-vantage-vs-twelve-data.json", "title": "Alpha Vantage vs Twelve Data", "url": "https://www.anchorterminal.com/compare/alpha-vantage-vs-twelve-data" }, { "json": "https://www.anchorterminal.com/compare/databento-vs-tiingo.json", "title": "Databento vs Tiingo", "url": "https://www.anchorterminal.com/compare/databento-vs-tiingo" }, { "json": "https://www.anchorterminal.com/compare/databento-vs-twelve-data.json", "title": "Databento vs Twelve Data", "url": "https://www.anchorterminal.com/compare/databento-vs-twelve-data" }, { "json": "https://www.anchorterminal.com/compare/finnhub-vs-tiingo.json", "title": "Finnhub vs Tiingo", "url": "https://www.anchorterminal.com/compare/finnhub-vs-tiingo" }, { "json": "https://www.anchorterminal.com/compare/finnhub-vs-twelve-data.json", "title": "Finnhub vs Twelve Data", "url": "https://www.anchorterminal.com/compare/finnhub-vs-twelve-data" }, { "json": "https://www.anchorterminal.com/compare/intrinio-vs-tiingo.json", "title": "Intrinio vs Tiingo", "url": "https://www.anchorterminal.com/compare/intrinio-vs-tiingo" }, { "json": "https://www.anchorterminal.com/compare/intrinio-vs-twelve-data.json", "title": "Intrinio vs Twelve Data", "url": "https://www.anchorterminal.com/compare/intrinio-vs-twelve-data" }, { "json": "https://www.anchorterminal.com/compare/massive-vs-tiingo.json", "title": "Massive (formerly Polygon.io) vs Tiingo", "url": "https://www.anchorterminal.com/compare/massive-vs-tiingo" }, { "json": "https://www.anchorterminal.com/compare/massive-vs-twelve-data.json", "title": "Massive (formerly Polygon.io) vs Twelve Data", "url": "https://www.anchorterminal.com/compare/massive-vs-twelve-data" }, { "json": "https://www.anchorterminal.com/compare/financial-datasets-vs-tiingo.json", "title": "Financial Datasets vs Tiingo", "url": "https://www.anchorterminal.com/compare/financial-datasets-vs-tiingo" }, { "json": "https://www.anchorterminal.com/compare/financial-datasets-vs-twelve-data.json", "title": "Financial Datasets vs Twelve Data", "url": "https://www.anchorterminal.com/compare/financial-datasets-vs-twelve-data" }, { "json": "https://www.anchorterminal.com/compare/financial-modeling-prep-vs-tiingo.json", "title": "Financial Modeling Prep vs Tiingo", "url": "https://www.anchorterminal.com/compare/financial-modeling-prep-vs-tiingo" }, { "json": "https://www.anchorterminal.com/compare/financial-modeling-prep-vs-twelve-data.json", "title": "Financial Modeling Prep vs Twelve Data", "url": "https://www.anchorterminal.com/compare/financial-modeling-prep-vs-twelve-data" }, { "json": "https://www.anchorterminal.com/compare/eodhd-vs-tiingo.json", "title": "EODHD vs Tiingo", "url": "https://www.anchorterminal.com/compare/eodhd-vs-tiingo" }, { "json": "https://www.anchorterminal.com/compare/eodhd-vs-twelve-data.json", "title": "EODHD vs Twelve Data", "url": "https://www.anchorterminal.com/compare/eodhd-vs-twelve-data" }, { "json": "https://www.anchorterminal.com/compare/benzinga-vs-tiingo.json", "title": "Benzinga vs Tiingo", "url": "https://www.anchorterminal.com/compare/benzinga-vs-tiingo" }, { "json": "https://www.anchorterminal.com/compare/benzinga-vs-twelve-data.json", "title": "Benzinga vs Twelve Data", "url": "https://www.anchorterminal.com/compare/benzinga-vs-twelve-data" } ], "panel": null, "scores": [ { "by": 23, "edge": "twelve-data", "key": "reliability", "name": "Reliability", "tiingo": 60, "twelve-data": 83, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 44, "edge": "twelve-data", "key": "schema", "name": "Schema \u0026 documentation", "tiingo": 39, "twelve-data": 83, "weight": 13 }, { "by": 28, "edge": "twelve-data", "key": "ergonomics", "name": "Agent ergonomics", "tiingo": 56, "twelve-data": 84, "weight": 13 }, { "by": 22, "edge": "twelve-data", "key": "security", "name": "Security \u0026 auth", "tiingo": 32, "twelve-data": 54, "weight": 14 }, { "by": 0, "edge": "", "key": "payments", "name": "Payments \u0026 pricing", "tiingo": 30, "twelve-data": 30, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 32, "edge": "twelve-data", "key": "maintenance", "name": "Maintenance \u0026 community", "tiingo": 50, "twelve-data": 82, "weight": 7 }, { "by": 10, "edge": "twelve-data", "key": "transparency", "name": "Transparency \u0026 trust", "tiingo": 57, "twelve-data": 67, "weight": 7 } ], "summary": "Twelve Data scores 70 (BB) on agent readiness against Tiingo's 46.2 (D), and leads in 6 of 7 scored categories. Both do market prices.", "tasks": null, "tutorials": [], "verdicts": { "tiingo": "A dated changelog since 2017, a one-year support commitment after breaking changes, an Instatus status page and a free token at 1,000 requests a day. The token is documented in the URL, no OpenAPI document, error reference, SDK or MCP server exists, and the terms and privacy policy sit on a host that refused our reader.", "twelve-data": "A public OpenAPI 3.1 document with error responses on all 187 operations, Markdown docs and pricing for agents, a status page with two short incidents in 90 days, and an MCP server behind OAuth 2.1. The REST key still travels in the query string as a documented option, no enums are declared, and free and individual plans forbid company use." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/tiingo-vs-twelve-data", "json": "https://www.anchorterminal.com/compare/tiingo-vs-twelve-data.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/tiingo-vs-twelve-data.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/tiingo-vs-twelve-data.min.md" }, "markdown": "Twelve Data scores 70 (BB) on agent readiness against Tiingo's 46.2 (D), and leads in 6 of 7 scored categories. Both do market prices.\n\n- Tiingo: grade D, 46.2/100, rank #1118 of 1349. Markdown https://www.anchorterminal.com/tools/tiingo.md · JSON https://www.anchorterminal.com/api/v1/tools/tiingo.json\n- Twelve Data: grade BB, 70/100, rank #197 of 1349. Markdown https://www.anchorterminal.com/tools/twelve-data.md · JSON https://www.anchorterminal.com/api/v1/tools/twelve-data.json\n- Best financial market data APIs for AI agents: https://www.anchorterminal.com/best/market-data/index.md\n- All 55 markets comparisons: https://www.anchorterminal.com/compare/market-data/index.md\n\n## Which one, for what\n\n### Tiingo (D)\n\nGood for: Agents that need clean US end-of-day composites with dividend and split adjustments, fund fees and news on a cheap plan, and anyone who values a long changelog.\n\nWatch for: The connecting guide documents the token as `?token=` in the URL alongside the header\n\n### Twelve Data (BB)\n\nGood for: Agents that need prices and time series across many exchanges and asset classes with one contract, CSV output, and a documented error table.\n\nAhead on:\n- Reliability, 83 against 60\n- Schema \u0026 documentation, 83 against 39\n- Agent ergonomics, 84 against 56\n- Security \u0026 auth, 54 against 32\n- Maintenance \u0026 community, 82 against 50\n- Transparency \u0026 trust, 67 against 57\n\nAlso in its favour:\n- Agent-ready, a grade of BB or better\n- Runs on your own machine\n- Free to start without a card\n\nWatch for: The REST docs and OpenAPI accept the key as `?apikey=` in the query string alongside the header\n\n\n## Why the edge\n\n### Schema \u0026 documentation: Twelve Data +44\n\n- Tiingo (39): No OpenAPI document or MCP server was found (0 of 25). llms.txt and llms-full.txt are served, with product routing and licence notes (10). Each documentation page states the endpoint's purpose and timing, such as prices after 5.30 pm ET with corrections to 8 pm, with little on when not to use it (12 of 20). Parameters and response fields are tabled with names and meanings, but types, defaults and allowed values are partly in prose (8 of 15). Examples in Python, Node and PHP on every page; no error responses documented (7 of 15). A changelog dated by entry since 2017 and a one-year support commitment after breaking changes, with no version in the path (12 of 15). 0 + 10 + 12 + 8 + 7 + 12 = 39.\n- Twelve Data (83): A public OpenAPI 3.1 document covers 187 operations, every one with a description and 200, 400, 401, 403, 404, 414, 429 and 500 responses, and the MCP tools in the source carry typed inputs and annotations (25). llms.txt on the site and in the docs link Markdown pages per section, pricing.md and auth.md (10). Descriptions state purpose, plan requirement and credit cost, with little on when not to use an endpoint (16 of 20). Required parameters are marked and the Markdown lists interval, adjust and type values, but none of the 3,091 parameters in the spec declares an enum (9 of 15). Examples with a demo key on every endpoint and an error table with codes and meanings (13 of 15). No version in the path, a spec at version 0.0.1, and monthly dated product updates on the news page rather than an API changelog (10 of 15). 25 + 10 + 16 + 9 + 13 + 10 = 83.\n\n### Maintenance \u0026 community: Twelve Data +32\n\n- Tiingo (50): Read as a closed service. The changelog's newest entry is 9 October 2026 (30). Entries dated 9 October and 8 September 2026 fall in the last 90 days, with 21 July just outside, and the status page adds a maintenance window on 28 September (12 of 20). A dated changelog, a support address and a blog, with the developer programme promising priority email support (8 of 15). No official SDK (0 of 15). No package to assess (0 of 10). 30 + 12 + 8 + 0 + 0 = 50.\n- Twelve Data (82): Read as a closed service. The newest dated change is the product update of 12 October 2026, with the MCP repository changed on 1 October and the world-model dataset repository on 31 October (30). Monthly updates dated 12 August, 12 September and 12 October 2026 (20). A monthly changelog, a support portal, a sales contact and a Telegram channel; replies on the MCP repository's issues were not read (10 of 15). Six official SDKs and a CLI, twelvedata-python at v1.4.0 of 27 April 2026 (15). The MCP server pins its dependencies with reasons and ships tests; the Python SDK's changelog stops at version 0.1 (7 of 10). 30 + 20 + 10 + 15 + 7 = 82.\n\n### Agent ergonomics: Twelve Data +28\n\n- Tiingo (56): `startDate`, `endDate`, `resampleFreq`, `format=csv` and column selection on some endpoints size responses; no field selection on end-of-day prices (15 of 25). Date ranges throughout and limit and offset on news, no cursor (15 of 20). Errors are undocumented; a missing token answered 403 with a JSON `detail` field in our one test call (3 of 20). Every call is a read (16 of 20). Few required parameters, but no official SDK; the docs point to third-party packages (7 of 15). 15 + 15 + 3 + 16 + 7 = 56.\n- Twelve Data (84): The REST API is the surface graded. `outputsize` 1 to 5,000 with a default of 30, `format=CSV`, `dp`, date ranges and batch requests size responses, and the MCP server lists 27 tools (20 of 25). Date ranges, `outputsize` and exchange, country and type filters, with no cursor pagination (15 of 20). Error codes with meanings an agent can branch on, 403 for plan limits and 429 for credits (16 of 20). Every operation is a read, and the MCP source marks tools readOnlyHint (18 of 20). Few required parameters, a demo key, and official SDKs in Python, Node.js, Go, Java and R (15). 20 + 15 + 16 + 18 + 15 = 84.\n\n### Reliability: Twelve Data +23\n\n- Tiingo (60): Read with the hosted lines. A public status page on Instatus at status.tiingo.com lists 13 components with a notice history (20). The history in the 90 days to 3 November 2026 shows a 9 hour 59 minute outage of the Blue Ocean ATS endpoints on 21 October, a WebSocket issue on 21 September and two maintenance windows, with nothing recorded before 21 September; a long outage of one niche feed rather than the core price API (15). Limits are published with numbers, 50 and 10,000 requests an hour, 1,000 and 100,000 a day and 1 GB and 40 GB a month (15). No 429, Retry-After or backoff guidance was found (0). No SLA found (0). The end-of-day, news, crypto and forex APIs are generally available, while Equity Realtime and BOATS are in beta (10). 20 + 15 + 15 + 0 + 0 + 10 = 60.\n- Twelve Data (83): Read with the hosted lines. A public status page at twelvedata.isitup.cloud lists Price API, Fundamentals API, WebSocket and Website with uptime figures (20). Its history shows two incidents in the 90 days to 3 November 2026, 20 minutes of unavailability across the three APIs on 1 September and 16 minutes on the WebSocket on 14 October, minor only (20). Limits are published with numbers, credits a minute by plan from 8 to 10,946 and 800 a day on Basic (15). The docs document a 429 on the limit and the usage endpoint, with no Retry-After or backoff guidance; reads only (8 of 15). The terms sell a 99.9 per cent SLA with service credits, and the Enterprise plan carries 99.99 per cent (10). The REST API and MCP server are generally available (10). 20 + 20 + 15 + 8 + 10 + 10 = 83.\n\n### Security \u0026 auth: Twelve Data +22\n\n- Tiingo (32): One token per account with no scopes, documented as `?token=` in the URL or an Authorization header, with rotation on the account page since May 2026 (20 less 10 for the query string, plus 2 for rotation, so 12). Every endpoint is a read (15 of 20). News is third-party text and no guidance was found (5 of 15). A usage page shows hourly and daily requests and bandwidth, not a per-call log (0 of 15, no log). security.txt redirects on www and is absent on api, and no disclosure policy, bug bounty or certification was found (0 of 20). 12 + 15 + 5 + 0 + 0 = 32.\n- Twelve Data (54): The REST key is a plain per-account key with no scopes, accepted as a header or as `?apikey=` (20 less 10 for the query string). The hosted MCP server refuses keys and uses OAuth 2.1 with PKCE, a resource indicator, refresh tokens, revocation and one scope, which lifts the credential model for that surface (18 of 30). Every operation is a read (15 of 20). Company news is third-party text and no guidance was found (5 of 15). An `/api_usage` endpoint and dashboard usage give the key holder a view of consumption, not a per-call log (6 of 15). A trust centre on SafeBase lists SOC 2, GDPR and CCPA and ten policies; no security.txt, disclosure process or bug bounty was found (10 of 20). 18 + 15 + 5 + 6 + 10 = 54.\n\n### Transparency \u0026 trust: Twelve Data +10\n\n- Tiingo (57): A closed service whose terms sit on app.tiingo.com, which answered 403 to every request, so they were not read; the pricing and documentation pages define internal, commercial and redistribution licences (8 of 30). The privacy policy is on the same host and was not read (0 of 30). The developer programme commits to a year of continued support after a breaking change, with changes posted in the changelog and emailed to registered developers, and the changelog's 9 October 2026 entry describes a changed default for prevClose (16 of 20). Equinix hosting is named on the about page, with no processor list or data location (4 of 20). 8 + 0 + 16 + 4 = 28.\n- Twelve Data (67): A closed service under terms that name the entity, define internal use, business use and redistribution, and were last updated 1 January 2026; the MCP repository is open source but ships no licence file (15 of 30). The privacy policy of 22 September 2026 states retention periods and names its processors, the terms require data deletion within 30 days of termination, and no DPA is named (20 of 30). No deprecation policy or notice period; the terms allow changes and the monthly updates record them after the fact (3 of 20). Subprocessors are named on the privacy policy and the trust centre, with no data locations beyond transfer mechanisms (12 of 20). 15 + 20 + 3 + 12 = 50.\n\n## Score by category\n\n| Category | Weight | Tiingo | Twelve Data | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 60 | 83 | Twelve Data +23 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 39 | 83 | Twelve Data +44 |\n| Agent ergonomics | 13% (16.2 this run) | 56 | 84 | Twelve Data +28 |\n| Security \u0026 auth | 14% (17.5 this run) | 32 | 54 | Twelve Data +22 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 30 | even |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 50 | 82 | Twelve Data +32 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 57 | 67 | Twelve Data +10 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **46.2 · D** | **70 · BB** | |\n\n## Facts side by side\n\n| Fact | Tiingo | Twelve Data |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Tiingo Inc. | Twelve Data Pte. Ltd. |\n| Hosted endpoint | `https://api.tiingo.com` | `https://api.twelvedata.com` |\n| Transports | HTTP, websocket | HTTP, Streamable HTTP, stdio, websocket |\n| Auth | API key | OAuth or key |\n| Pricing | Freemium | Freemium |\n| x402 | no | no |\n| Tools exposed | none | 27 |\n| Read-only variant documented | no | yes |\n| llms.txt | yes | yes |\n| Last release | 2026-10-09 | 2026-10-12 |\n| Terms last updated | couldn't be read | 2026-01-01 |\n| Privacy policy last updated | 2026-02-18 | 2026-09-22 |\n| Customer content may train models | couldn't be read | not found in the text |\n| Terms restrict automated access | couldn't be read | not found in the text |\n| Terms restrict benchmarking | couldn't be read | yes |\n| Terms or service can change without notice | couldn't be read | yes |\n| Arbitration or class-action waiver | couldn't be read | yes |\n| Popularity | none | 791 stars |\n\n## Verdicts\n\n**Tiingo.** A dated changelog since 2017, a one-year support commitment after breaking changes, an Instatus status page and a free token at 1,000 requests a day. The token is documented in the URL, no OpenAPI document, error reference, SDK or MCP server exists, and the terms and privacy policy sit on a host that refused our reader.\n\n**Twelve Data.** A public OpenAPI 3.1 document with error responses on all 187 operations, Markdown docs and pricing for agents, a status page with two short incidents in 90 days, and an MCP server behind OAuth 2.1. The REST key still travels in the query string as a documented option, no enums are declared, and free and individual plans forbid company use.\n\n## Before you call either\n\n### Tiingo\n\n1. Send the token as `Authorization: Token \u003ctoken\u003e`, not as `?token=` in the URL\n2. Ask for `format=csv` on large price pulls; the docs say CSV is 4 to 5 times faster than JSON, and bandwidth counts against the monthly cap\n3. Count requests an hour and a day, not per second; 50 an hour on Starter, 10,000 on Power, reset on the hour and at midnight ET\n4. Expect 403 `{\"detail\":\"Please supply a token\"}` without a token; other error shapes are undocumented, so log the body\n5. Use dashes in share classes (BRK-A), and fetch supported_tickers.zip rather than guessing symbols\n\n### Twelve Data\n\n1. Send the key as `Authorization: apikey \u003ckey\u003e`, not in the URL; the hosted MCP server takes OAuth only, so never paste a key into a connector's key field\n2. Set `outputsize` (1 to 5,000, default 30) and `format=CSV` on time_series to keep responses small, and read `status` in the JSON body since errors come with HTTP codes and a `message`\n3. Count credits, not calls; most endpoints cost one credit per symbol and the Basic plan allows 8 a minute and 800 a day, with 429 when exceeded\n4. A 403 means the key's plan lacks the endpoint or symbol, not a bad key; check pricing.md before escalating\n5. Use trial symbols from twelvedata.com/exchanges to test premium data on the free plan\n\n## Questions\n\n### Which is better for AI agents, Tiingo or Twelve Data?\n\nTwelve Data scores 70 (BB) on agent readiness against Tiingo's 46.2 (D), and leads in 6 of 7 scored categories.\n\n### Do Tiingo and Twelve Data need an API key?\n\nTiingo needs an API key. Twelve Data takes an API key or an OAuth sign-in.\n\n### Can an agent call Tiingo and Twelve Data without installing anything?\n\nYes. Tiingo has a hosted endpoint at https://api.tiingo.com and Twelve Data at https://api.twelvedata.com.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/tiingo-vs-twelve-data.json, and with the fewest tokens: https://www.anchorterminal.com/compare/tiingo-vs-twelve-data.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"tiingo\", \"b\": \"twelve-data\"}`. From a terminal: `anchor compare tiingo twelve-data`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/tiingo.json and https://www.anchorterminal.com/api/v1/tools/twelve-data.json\n\n## Other comparisons with Tiingo or Twelve Data\n\n- [Alpha Vantage vs Tiingo](https://www.anchorterminal.com/compare/alpha-vantage-vs-tiingo.md)\n- [Alpha Vantage vs Twelve Data](https://www.anchorterminal.com/compare/alpha-vantage-vs-twelve-data.md)\n- [Databento vs Tiingo](https://www.anchorterminal.com/compare/databento-vs-tiingo.md)\n- [Databento vs Twelve Data](https://www.anchorterminal.com/compare/databento-vs-twelve-data.md)\n- [Finnhub vs Tiingo](https://www.anchorterminal.com/compare/finnhub-vs-tiingo.md)\n- [Finnhub vs Twelve Data](https://www.anchorterminal.com/compare/finnhub-vs-twelve-data.md)\n- [Intrinio vs Tiingo](https://www.anchorterminal.com/compare/intrinio-vs-tiingo.md)\n- [Intrinio vs Twelve Data](https://www.anchorterminal.com/compare/intrinio-vs-twelve-data.md)\n- [Massive (formerly Polygon.io) vs Tiingo](https://www.anchorterminal.com/compare/massive-vs-tiingo.md)\n- [Massive (formerly Polygon.io) vs Twelve Data](https://www.anchorterminal.com/compare/massive-vs-twelve-data.md)\n- [Financial Datasets vs Tiingo](https://www.anchorterminal.com/compare/financial-datasets-vs-tiingo.md)\n- [Financial Datasets vs Twelve Data](https://www.anchorterminal.com/compare/financial-datasets-vs-twelve-data.md)\n- [Financial Modeling Prep vs Tiingo](https://www.anchorterminal.com/compare/financial-modeling-prep-vs-tiingo.md)\n- [Financial Modeling Prep vs Twelve Data](https://www.anchorterminal.com/compare/financial-modeling-prep-vs-twelve-data.md)\n- [EODHD vs Tiingo](https://www.anchorterminal.com/compare/eodhd-vs-tiingo.md)\n- [EODHD vs Twelve Data](https://www.anchorterminal.com/compare/eodhd-vs-twelve-data.md)\n- [Benzinga vs Tiingo](https://www.anchorterminal.com/compare/benzinga-vs-tiingo.md)\n- [Benzinga vs Twelve Data](https://www.anchorterminal.com/compare/benzinga-vs-twelve-data.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit Anchor Terminal and link the page or API address you took it from (https://www.anchorterminal.com/terms/#data)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-11-04", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.7", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run", "terms": "https://www.anchorterminal.com/terms/#data" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Tiingo vs Twelve Data", "url": "" } ], "description": "Twelve Data scores 70 (BB) to Tiingo's 46.2 (D) for market prices. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Tiingo D 46.2", "Twelve Data BB 70", "scores" ], "h1": "Tiingo vs Twelve Data", "image": "https://www.anchorterminal.com/assets/og/default.png", "path": "/compare/tiingo-vs-twelve-data", "published": "2026-10-01", "section": "tools", "title": "Tiingo vs Twelve Data for AI agents in 2026: scores and prices", "toc": null, "updated": "2026-11-03", "url": "https://www.anchorterminal.com/compare/tiingo-vs-twelve-data" }, "tokens": { "markdown": 4350, "slim": 2780 }, "version": 1 }