{ "data": { "a": { "slug": "financial-modeling-prep", "name": "Financial Modeling Prep", "vendor": "Financial Modeling Prep", "vendorUrl": "https://site.financialmodelingprep.com", "kind": "http-api", "category": "market-data", "summary": "Financial Modeling Prep (FMP) is a market data API for financial statements, earnings, quotes, price history, filings, news and economic series across stocks, ETFs, funds, forex and crypto. Agents call the REST endpoints under /stable or the hosted MCP server.", "url": "https://www.anchorterminal.com/tools/financial-modeling-prep", "markdownUrl": "https://www.anchorterminal.com/tools/financial-modeling-prep.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/financial-modeling-prep.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/financial-modeling-prep.json", "dns": "financial-modeling-prep.grade.anchorterminal.com", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://financialmodelingprep.com/stable", "packages": [], "auth": "api-key", "authNotes": "One API key per account, shown in the dashboard after a browser signup. The docs accept it as an `apikey` request header or as `?apikey=` in the query string. The hosted MCP server's documented address carries the key in the URL, `https://financialmodelingprep.com/mcp?apikey=KEY`; the same host also publishes OAuth 2 metadata (authorisation code with PKCE, scopes openid, email and profile) that the MCP page does not mention. No scopes, expiry or rotation guidance found.", "pricing": "freemium", "pricingNotes": "Basic plan free at 250 calls a day with end-of-day data and 5 years of history, no card stated. Personal plans Starter $29, Premium $69 and Ultimate $139 a month (about $19, $49 and $99 a month billed annually) at 300, 750 and 3,000 calls a minute, with trailing 30-day bandwidth caps of 500 MB, 20 GB, 50 GB and 150 GB. Commercial and display use need a separate licence with no public price (https://site.financialmodelingprep.com/pricing-plans, checked 2026-11-03).", "priceSummary": "$29 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the API docs, api-docs.md, pricing pages, the MCP page or the OAuth metadata (checked 2026-11-03). A call without a key returns HTTP 401 with an `Error Message` field.", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-11-03" }, "docsUrl": "https://site.financialmodelingprep.com/developer/docs", "llmsTxt": "https://site.financialmodelingprep.com/llms.txt", "capabilities": [ "market.fundamentals", "market.prices", "market.history", "market.filings", "market.news", "market.indices", "market.crypto", "data.company", "data.markets" ], "tags": [ "hosted", "freemium", "api-key", "mcp", "remote-mcp", "llms-txt", "no-card", "free-tier", "closed-source", "status-page", "stocks", "forex", "crypto", "personal-use" ], "lastRelease": "2026-11-02", "graded": true, "anchor": { "graded": true, "score": 48.7, "grade": "D", "agentReady": false, "rank": 1056, "ranked": true, "rankOf": 1349, "categoryRank": 8, "methodology": "0.7", "run": "2026-10-01", "scores": { "ergonomics": 59, "maintenance": 60, "payments": 30, "reliability": 50, "schema": 61, "security": 30, "transparency": 57 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-11-03" }, "negative": 0, "verdict": "About 199 stable REST endpoints with Markdown docs for agents, a dated changelog and a free key at 250 calls a day. The one key travels in the query string on the documented MCP address, error responses and 429 handling are undocumented, the status history could not be read, and personal plans forbid any company use.", "bestFor": "Agents doing company research on statements, ratios, DCF, filings, transcripts and calendars with one key, and US coverage on cheap plans.", "strengths": [ "api-docs.md and pricing.md give agents every stable endpoint with parameters, an example response and the plan that unlocks it", "Changelog entries dated by day through 2 November 2026", "Free Basic plan at 250 calls a day with no card stated, and plan prices published without login", "A public status page and a help centre with FAQs on keys, limits and errors", "Hosted MCP server that reuses the REST key and limits, with OAuth metadata published on the same host" ], "weaknesses": [ "The documented MCP connection URL puts the API key in the query string, and the REST docs accept `?apikey=` too", "No OpenAPI document, no documented error responses and no 429 or Retry-After guidance found", "Status page data did not load for our reader, so the incident record is unknown", "Personal plans are for individuals only; any use on behalf of a company, and any display, needs a separate agreement with no public price", "Terms name no legal entity, and the privacy policy carries no date and no retention periods" ], "agentNotes": [ "Send the key as an `apikey` header, not in the URL, and treat the MCP `?apikey=` address as a secret", "Use the /stable paths from api-docs.md; /api/v3 and /v4 are discontinued even though the FAQ still shows a v3 example", "On the free plan expect 5 results and page 0 on many list endpoints; read pricing.md before planning a crawl", "A missing or wrong key returns HTTP 401 with an `Error Message` field; stop and ask the user rather than retry", "Do not display or pass on the data in a product; personal plans forbid it" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "D", "methodology": "0.7", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 48.7 } ], "editorialScores": { "ergonomics": 59, "maintenance": 60, "payments": 30, "reliability": 50, "schema": 61, "security": 30, "transparency": 33 }, "provenanceScore": 81, "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 \"apikey: $FMP_API_KEY\" \"https://financialmodelingprep.com/stable/quote?symbol=AAPL\"", "config": { "mcpServers": { "fmp": { "url": "https://financialmodelingprep.com/mcp?apikey=YOUR_FMP_API_KEY" } } } }, "letme": { "capability": "https://letme.dev/market.fundamentals", "tool": "https://letme.dev/financial-modeling-prep" }, "area": "domain-data", "unitPrices": [ { "item": "Starter, 300 calls a minute", "unit": "month", "usd": 29, "note": "personal use, about $19 a month billed annually" }, { "item": "Premium, 750 calls a minute", "unit": "month", "usd": 69, "note": "personal use, about $49 a month billed annually" }, { "item": "Ultimate, 3,000 calls a minute", "unit": "month", "usd": 139, "note": "personal use, about $99 a month billed annually" } ], "provenance": { "legalEntity": "Financial Modeling Prep", "domain": "financialmodelingprep.com", "domainRegistered": "2018-02-19", "endpointOnVendorDomain": true, "terms": "https://site.financialmodelingprep.com/terms-of-service", "privacy": "https://site.financialmodelingprep.com/privacy-policy", "statusPage": "https://status.financialmodelingprep.com", "changelog": "https://site.financialmodelingprep.com/developer/docs/changelog", "securityTxt": "none", "checked": "2026-11-03", "notes": [ "The terms of service, last updated 1 August 2023, are written between FMP and the customer and name no legal form, address or governing law. The footer reads Financial Modeling Prep.", "The privacy policy carries no date and names Google AdSense and Google Analytics. It keeps data for as long as necessary and promises breach notice within 7 business days.", "site.financialmodelingprep.com/robots.txt allows all crawlers and disallows /contact-card/. The terms contain no clause on automated access to the website.", "RDAP gives financialmodelingprep.com a registration date of 19 February 2018 at Amazon Registrar.", "/.well-known/security.txt and /security.txt return 404 on site.financialmodelingprep.com. The footer's Trust Center link returns 404.", "The status page is an Endpoint Uptime Status page at status.financialmodelingprep.com whose data loads by script; our reader got an error instead of the uptime figures.", "The hosted MCP server's host publishes OAuth 2 metadata at /.well-known/oauth-authorization-server with a Google service-account JWKS." ], "score": 81 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/financial-modeling-prep.json", "live": { "slug": "financial-modeling-prep", "probe": { "target": "https://financialmodelingprep.com/stable", "method": "get", "lastAt": "2026-11-04T20:05:01.672715275Z", "lastOk": true, "lastStatus": 401, "lastMs": 387, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 398, "p95ms24h": 600, "samples24h": 48, "samples30d": 48, "days": [ { "date": "2026-11-04", "probes": 48, "ok": 48 } ] }, "vendorStatus": { "page": "https://status.financialmodelingprep.com", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-11-04T15:31:55.222038062Z" }, "securityTxt": { "url": "https://financialmodelingprep.com/.well-known/security.txt", "state": "unknown", "checkedAt": "2026-11-04T15:54:45.259926529Z" }, "updatedAt": "2026-11-04T20:05:01.672715275Z" } }, "answer": "Twelve Data scores 70 (BB) on agent readiness against Financial Modeling Prep's 48.7 (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": 33, "category": "reliability", "leads": "twelve-data", "name": "Reliability", "reasons": { "a": "Read with the hosted lines. A public status page at status.financialmodelingprep.com is linked from every page (20), but its figures load by script and our reader got an error, so no incident history could be read (5). Limits are published with numbers, 250 calls a day on Basic and 300, 750 and 3,000 calls a minute on paid plans, with bandwidth caps per plan (15). No 429 behaviour, Retry-After or backoff guidance was found in the docs, api-docs.md or FAQs (0). No SLA found; the terms let FMP change limits without notice (0). The stable API is generally available (10). 20 + 5 + 15 + 0 + 0 + 10 = 50.", "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": 50, "b": 83 } }, { "by": 25, "category": "ergonomics", "leads": "twelve-data", "name": "Agent ergonomics", "reasons": { "a": "The REST API is the surface graded. `limit` and `page` on list endpoints, `from` and `to` on series, and batch quote endpoints size responses, with no field selection (15 of 25). Page and limit parameters on lists and date filters on series, no cursor (15 of 20). A missing key returned 401 with an `Error Message` text field in our one test call, and no error reference exists (5 of 20). Every call is a GET read; the MCP server's annotations were not read (16 of 20). Few required parameters and sensible defaults, but no official SDK in any language (8 of 15). 15 + 15 + 5 + 16 + 8 = 59.", "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": 59, "b": 84 } }, { "by": 24, "category": "security", "leads": "twelve-data", "name": "Security \u0026 auth", "reasons": { "a": "One key per account with no scopes, accepted as a header or as `?apikey=`, and the documented MCP address carries it in the URL (20 less 10 for the query string, so 10). Every endpoint is a read (15 of 20). News, press releases, transcripts and filings are third-party text and no guidance on treating them as untrusted was found (5 of 15). No usage log or per-call record for the key holder was found (0 of 15). security.txt returns 404, the Trust Center link returns 404, and no disclosure policy, bug bounty or certification was found (0 of 20). 10 + 15 + 5 + 0 + 0 = 30.", "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": 30, "b": 54 } }, { "by": 22, "category": "schema", "leads": "twelve-data", "name": "Schema \u0026 documentation", "reasons": { "a": "No OpenAPI document was found. The MCP page says the server supplies strict parameter definitions, but the tool list needs a key and was not read (5 of 25). llms.txt links api-docs.md and pricing.md, Markdown written for agents (10). Each of the 199 endpoints in api-docs.md has a purpose paragraph and a plan marker in pricing.md, with little on when not to use it (13 of 20). Parameters are tabled with type, example and a required star, but allowed values sit in prose and no enums are given (8 of 15). Every endpoint has an example request and response; no error responses are documented anywhere we read (10 of 15). A /stable path, legacy /v3 and /v4 marked discontinued, and a changelog dated by day through 2 November 2026 (15). 5 + 10 + 13 + 8 + 10 + 15 = 61.", "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": 61, "b": 83 } }, { "by": 22, "category": "maintenance", "leads": "twelve-data", "name": "Maintenance \u0026 community", "reasons": { "a": "Read as a closed service. The changelog's newest entry is 2 November 2026 (30). Entries dated 6, 8, 12, 28 and 29 October and 2 November 2026, more than three in 90 days (20). A public changelog, a help centre, FAQs and a support address, with issues reported through a site chatbot per the FAQ (10 of 15). No official SDK; the FAQ points at third-party packages (0 of 15). No package to assess, and nothing else to show for CI or dependency health (0 of 10). 30 + 20 + 10 + 0 + 0 = 60.", "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": 60, "b": 82 } }, { "by": 10, "category": "transparency", "leads": "twelve-data", "name": "Transparency \u0026 trust", "reasons": { "a": "A closed service under terms that are clear on personal and commercial use and on display licensing, last updated 1 August 2023, but that name no legal entity, address or governing law (12 of 30). The privacy policy is undated, keeps data for as long as necessary with no periods, says no third parties receive data while naming Google AdSense and Analytics, and no DPA was found (8 of 30). The docs keep a Legacy section and api-docs.md says /v3 and /v4 are discontinued, with no notice period stated; behaviour changes such as the Economics Indicators default window appear in the dated changelog (8 of 20). Google services are the only processors named and no data location is given (5 of 20). 12 + 8 + 8 + 5 = 33.", "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": "Financial Modeling Prep", "b": "Twelve Data Pte. Ltd.", "name": "Vendor" }, { "a": "https://financialmodelingprep.com/stable", "b": "https://api.twelvedata.com", "name": "Hosted endpoint" }, { "a": "HTTP, Streamable HTTP", "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": "2026-11-02", "b": "2026-10-12", "name": "Last release" }, { "a": "couldn't be read", "b": "2026-01-01", "name": "Terms last updated" }, { "a": "couldn't be read", "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 Financial Modeling Prep's 48.7 (D), and leads in 6 of 7 scored categories.", "question": "Which is better for AI agents, Financial Modeling Prep or Twelve Data?" }, { "answer": "Financial Modeling Prep needs an API key. Twelve Data takes an API key or an OAuth sign-in.", "question": "Do Financial Modeling Prep and Twelve Data need an API key?" }, { "answer": "Yes. Financial Modeling Prep has a hosted endpoint at https://financialmodelingprep.com/stable and Twelve Data at https://api.twelvedata.com.", "question": "Can an agent call Financial Modeling Prep and Twelve Data without installing anything?" } ], "goodFor": [ { "aheadOn": null, "also": null, "goodFor": "Agents doing company research on statements, ratios, DCF, filings, transcripts and calendars with one key, and US coverage on cheap plans.", "slug": "financial-modeling-prep", "watchFor": "The documented MCP connection URL puts the API key in the query string, and the REST docs accept `?apikey=` too" }, { "aheadOn": [ "Reliability, 83 against 50", "Schema \u0026 documentation, 83 against 61", "Agent ergonomics, 84 against 59", "Security \u0026 auth, 54 against 30", "Maintenance \u0026 community, 82 against 60", "Transparency \u0026 trust, 67 against 57" ], "also": [ "Agent-ready, a grade of BB or better", "Runs on your own machine" ], "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.fundamentals", "name": "Market fundamentals" }, "others": [ { "json": "https://www.anchorterminal.com/compare/alpha-vantage-vs-financial-modeling-prep.json", "title": "Alpha Vantage vs Financial Modeling Prep", "url": "https://www.anchorterminal.com/compare/alpha-vantage-vs-financial-modeling-prep" }, { "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-financial-modeling-prep.json", "title": "Databento vs Financial Modeling Prep", "url": "https://www.anchorterminal.com/compare/databento-vs-financial-modeling-prep" }, { "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/financial-modeling-prep-vs-massive.json", "title": "Financial Modeling Prep vs Massive (formerly Polygon.io)", "url": "https://www.anchorterminal.com/compare/financial-modeling-prep-vs-massive" }, { "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-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-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/tiingo-vs-twelve-data.json", "title": "Tiingo vs Twelve Data", "url": "https://www.anchorterminal.com/compare/tiingo-vs-twelve-data" }, { "json": "https://www.anchorterminal.com/compare/financial-datasets-vs-financial-modeling-prep.json", "title": "Financial Datasets vs Financial Modeling Prep", "url": "https://www.anchorterminal.com/compare/financial-datasets-vs-financial-modeling-prep" }, { "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-finnhub.json", "title": "Financial Modeling Prep vs Finnhub", "url": "https://www.anchorterminal.com/compare/financial-modeling-prep-vs-finnhub" }, { "json": "https://www.anchorterminal.com/compare/financial-modeling-prep-vs-intrinio.json", "title": "Financial Modeling Prep vs Intrinio", "url": "https://www.anchorterminal.com/compare/financial-modeling-prep-vs-intrinio" }, { "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/eodhd-vs-financial-modeling-prep.json", "title": "EODHD vs Financial Modeling Prep", "url": "https://www.anchorterminal.com/compare/eodhd-vs-financial-modeling-prep" }, { "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-financial-modeling-prep.json", "title": "Benzinga vs Financial Modeling Prep", "url": "https://www.anchorterminal.com/compare/benzinga-vs-financial-modeling-prep" }, { "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": 33, "edge": "twelve-data", "financial-modeling-prep": 50, "key": "reliability", "name": "Reliability", "twelve-data": 83, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 22, "edge": "twelve-data", "financial-modeling-prep": 61, "key": "schema", "name": "Schema \u0026 documentation", "twelve-data": 83, "weight": 13 }, { "by": 25, "edge": "twelve-data", "financial-modeling-prep": 59, "key": "ergonomics", "name": "Agent ergonomics", "twelve-data": 84, "weight": 13 }, { "by": 24, "edge": "twelve-data", "financial-modeling-prep": 30, "key": "security", "name": "Security \u0026 auth", "twelve-data": 54, "weight": 14 }, { "by": 0, "edge": "", "financial-modeling-prep": 30, "key": "payments", "name": "Payments \u0026 pricing", "twelve-data": 30, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 22, "edge": "twelve-data", "financial-modeling-prep": 60, "key": "maintenance", "name": "Maintenance \u0026 community", "twelve-data": 82, "weight": 7 }, { "by": 10, "edge": "twelve-data", "financial-modeling-prep": 57, "key": "transparency", "name": "Transparency \u0026 trust", "twelve-data": 67, "weight": 7 } ], "summary": "Twelve Data scores 70 (BB) on agent readiness against Financial Modeling Prep's 48.7 (D), and leads in 6 of 7 scored categories. Both do market fundamentals.", "tasks": null, "tutorials": [], "verdicts": { "financial-modeling-prep": "About 199 stable REST endpoints with Markdown docs for agents, a dated changelog and a free key at 250 calls a day. The one key travels in the query string on the documented MCP address, error responses and 429 handling are undocumented, the status history could not be read, and personal plans forbid any company use.", "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/financial-modeling-prep-vs-twelve-data", "json": "https://www.anchorterminal.com/compare/financial-modeling-prep-vs-twelve-data.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/financial-modeling-prep-vs-twelve-data.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/financial-modeling-prep-vs-twelve-data.min.md" }, "markdown": "Twelve Data scores 70 (BB) on agent readiness against Financial Modeling Prep's 48.7 (D), and leads in 6 of 7 scored categories. Both do market fundamentals.\n\n- Financial Modeling Prep: grade D, 48.7/100, rank #1056 of 1349. Markdown https://www.anchorterminal.com/tools/financial-modeling-prep.md · JSON https://www.anchorterminal.com/api/v1/tools/financial-modeling-prep.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### Financial Modeling Prep (D)\n\nGood for: Agents doing company research on statements, ratios, DCF, filings, transcripts and calendars with one key, and US coverage on cheap plans.\n\nWatch for: The documented MCP connection URL puts the API key in the query string, and the REST docs accept `?apikey=` too\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 50\n- Schema \u0026 documentation, 83 against 61\n- Agent ergonomics, 84 against 59\n- Security \u0026 auth, 54 against 30\n- Maintenance \u0026 community, 82 against 60\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\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### Reliability: Twelve Data +33\n\n- Financial Modeling Prep (50): Read with the hosted lines. A public status page at status.financialmodelingprep.com is linked from every page (20), but its figures load by script and our reader got an error, so no incident history could be read (5). Limits are published with numbers, 250 calls a day on Basic and 300, 750 and 3,000 calls a minute on paid plans, with bandwidth caps per plan (15). No 429 behaviour, Retry-After or backoff guidance was found in the docs, api-docs.md or FAQs (0). No SLA found; the terms let FMP change limits without notice (0). The stable API is generally available (10). 20 + 5 + 15 + 0 + 0 + 10 = 50.\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### Agent ergonomics: Twelve Data +25\n\n- Financial Modeling Prep (59): The REST API is the surface graded. `limit` and `page` on list endpoints, `from` and `to` on series, and batch quote endpoints size responses, with no field selection (15 of 25). Page and limit parameters on lists and date filters on series, no cursor (15 of 20). A missing key returned 401 with an `Error Message` text field in our one test call, and no error reference exists (5 of 20). Every call is a GET read; the MCP server's annotations were not read (16 of 20). Few required parameters and sensible defaults, but no official SDK in any language (8 of 15). 15 + 15 + 5 + 16 + 8 = 59.\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### Security \u0026 auth: Twelve Data +24\n\n- Financial Modeling Prep (30): One key per account with no scopes, accepted as a header or as `?apikey=`, and the documented MCP address carries it in the URL (20 less 10 for the query string, so 10). Every endpoint is a read (15 of 20). News, press releases, transcripts and filings are third-party text and no guidance on treating them as untrusted was found (5 of 15). No usage log or per-call record for the key holder was found (0 of 15). security.txt returns 404, the Trust Center link returns 404, and no disclosure policy, bug bounty or certification was found (0 of 20). 10 + 15 + 5 + 0 + 0 = 30.\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### Schema \u0026 documentation: Twelve Data +22\n\n- Financial Modeling Prep (61): No OpenAPI document was found. The MCP page says the server supplies strict parameter definitions, but the tool list needs a key and was not read (5 of 25). llms.txt links api-docs.md and pricing.md, Markdown written for agents (10). Each of the 199 endpoints in api-docs.md has a purpose paragraph and a plan marker in pricing.md, with little on when not to use it (13 of 20). Parameters are tabled with type, example and a required star, but allowed values sit in prose and no enums are given (8 of 15). Every endpoint has an example request and response; no error responses are documented anywhere we read (10 of 15). A /stable path, legacy /v3 and /v4 marked discontinued, and a changelog dated by day through 2 November 2026 (15). 5 + 10 + 13 + 8 + 10 + 15 = 61.\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 +22\n\n- Financial Modeling Prep (60): Read as a closed service. The changelog's newest entry is 2 November 2026 (30). Entries dated 6, 8, 12, 28 and 29 October and 2 November 2026, more than three in 90 days (20). A public changelog, a help centre, FAQs and a support address, with issues reported through a site chatbot per the FAQ (10 of 15). No official SDK; the FAQ points at third-party packages (0 of 15). No package to assess, and nothing else to show for CI or dependency health (0 of 10). 30 + 20 + 10 + 0 + 0 = 60.\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### Transparency \u0026 trust: Twelve Data +10\n\n- Financial Modeling Prep (57): A closed service under terms that are clear on personal and commercial use and on display licensing, last updated 1 August 2023, but that name no legal entity, address or governing law (12 of 30). The privacy policy is undated, keeps data for as long as necessary with no periods, says no third parties receive data while naming Google AdSense and Analytics, and no DPA was found (8 of 30). The docs keep a Legacy section and api-docs.md says /v3 and /v4 are discontinued, with no notice period stated; behaviour changes such as the Economics Indicators default window appear in the dated changelog (8 of 20). Google services are the only processors named and no data location is given (5 of 20). 12 + 8 + 8 + 5 = 33.\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 | Financial Modeling Prep | Twelve Data | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 50 | 83 | Twelve Data +33 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 61 | 83 | Twelve Data +22 |\n| Agent ergonomics | 13% (16.2 this run) | 59 | 84 | Twelve Data +25 |\n| Security \u0026 auth | 14% (17.5 this run) | 30 | 54 | Twelve Data +24 |\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) | 60 | 82 | Twelve Data +22 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 57 | 67 | Twelve Data +10 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **48.7 · D** | **70 · BB** | |\n\n## Facts side by side\n\n| Fact | Financial Modeling Prep | Twelve Data |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Financial Modeling Prep | Twelve Data Pte. Ltd. |\n| Hosted endpoint | `https://financialmodelingprep.com/stable` | `https://api.twelvedata.com` |\n| Transports | HTTP, Streamable HTTP | 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 | 2026-11-02 | 2026-10-12 |\n| Terms last updated | couldn't be read | 2026-01-01 |\n| Privacy policy last updated | couldn't be read | 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**Financial Modeling Prep.** About 199 stable REST endpoints with Markdown docs for agents, a dated changelog and a free key at 250 calls a day. The one key travels in the query string on the documented MCP address, error responses and 429 handling are undocumented, the status history could not be read, and personal plans forbid any company use.\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### Financial Modeling Prep\n\n1. Send the key as an `apikey` header, not in the URL, and treat the MCP `?apikey=` address as a secret\n2. Use the /stable paths from api-docs.md; /api/v3 and /v4 are discontinued even though the FAQ still shows a v3 example\n3. On the free plan expect 5 results and page 0 on many list endpoints; read pricing.md before planning a crawl\n4. A missing or wrong key returns HTTP 401 with an `Error Message` field; stop and ask the user rather than retry\n5. Do not display or pass on the data in a product; personal plans forbid it\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, Financial Modeling Prep or Twelve Data?\n\nTwelve Data scores 70 (BB) on agent readiness against Financial Modeling Prep's 48.7 (D), and leads in 6 of 7 scored categories.\n\n### Do Financial Modeling Prep and Twelve Data need an API key?\n\nFinancial Modeling Prep needs an API key. Twelve Data takes an API key or an OAuth sign-in.\n\n### Can an agent call Financial Modeling Prep and Twelve Data without installing anything?\n\nYes. Financial Modeling Prep has a hosted endpoint at https://financialmodelingprep.com/stable and Twelve Data at https://api.twelvedata.com.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/financial-modeling-prep-vs-twelve-data.json, and with the fewest tokens: https://www.anchorterminal.com/compare/financial-modeling-prep-vs-twelve-data.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"financial-modeling-prep\", \"b\": \"twelve-data\"}`. From a terminal: `anchor compare financial-modeling-prep twelve-data`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/financial-modeling-prep.json and https://www.anchorterminal.com/api/v1/tools/twelve-data.json\n\n## Other comparisons with Financial Modeling Prep or Twelve Data\n\n- [Alpha Vantage vs Financial Modeling Prep](https://www.anchorterminal.com/compare/alpha-vantage-vs-financial-modeling-prep.md)\n- [Alpha Vantage vs Twelve Data](https://www.anchorterminal.com/compare/alpha-vantage-vs-twelve-data.md)\n- [Databento vs Financial Modeling Prep](https://www.anchorterminal.com/compare/databento-vs-financial-modeling-prep.md)\n- [Databento vs Twelve Data](https://www.anchorterminal.com/compare/databento-vs-twelve-data.md)\n- [Financial Modeling Prep vs Massive (formerly Polygon.io)](https://www.anchorterminal.com/compare/financial-modeling-prep-vs-massive.md)\n- [Finnhub vs Twelve Data](https://www.anchorterminal.com/compare/finnhub-vs-twelve-data.md)\n- [Intrinio vs Twelve Data](https://www.anchorterminal.com/compare/intrinio-vs-twelve-data.md)\n- [Massive (formerly Polygon.io) vs Twelve Data](https://www.anchorterminal.com/compare/massive-vs-twelve-data.md)\n- [Tiingo vs Twelve Data](https://www.anchorterminal.com/compare/tiingo-vs-twelve-data.md)\n- [Financial Datasets vs Financial Modeling Prep](https://www.anchorterminal.com/compare/financial-datasets-vs-financial-modeling-prep.md)\n- [Financial Datasets vs Twelve Data](https://www.anchorterminal.com/compare/financial-datasets-vs-twelve-data.md)\n- [Financial Modeling Prep vs Finnhub](https://www.anchorterminal.com/compare/financial-modeling-prep-vs-finnhub.md)\n- [Financial Modeling Prep vs Intrinio](https://www.anchorterminal.com/compare/financial-modeling-prep-vs-intrinio.md)\n- [Financial Modeling Prep vs Tiingo](https://www.anchorterminal.com/compare/financial-modeling-prep-vs-tiingo.md)\n- [EODHD vs Financial Modeling Prep](https://www.anchorterminal.com/compare/eodhd-vs-financial-modeling-prep.md)\n- [EODHD vs Twelve Data](https://www.anchorterminal.com/compare/eodhd-vs-twelve-data.md)\n- [Benzinga vs Financial Modeling Prep](https://www.anchorterminal.com/compare/benzinga-vs-financial-modeling-prep.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": "Financial Modeling Prep vs Twelve Data", "url": "" } ], "description": "Twelve Data scores 70 (BB) to Financial Modeling Prep's 48.7 (D) for market fundamentals. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Financial Modeling Prep D 48.7", "Twelve Data BB 70", "scores" ], "h1": "Financial Modeling Prep vs Twelve Data", "image": "https://www.anchorterminal.com/assets/og/default.png", "path": "/compare/financial-modeling-prep-vs-twelve-data", "published": "2026-10-01", "section": "tools", "title": "Financial Modeling Prep vs Twelve Data for AI agents (2026)", "toc": null, "updated": "2026-11-03", "url": "https://www.anchorterminal.com/compare/financial-modeling-prep-vs-twelve-data" }, "tokens": { "markdown": 4550, "slim": 2830 }, "version": 1 }