{ "data": { "a": { "slug": "brevo", "name": "Brevo API + MCP", "vendor": "Brevo", "vendorUrl": "https://www.brevo.com", "kind": "http-api", "category": "email", "summary": "Transactional email over REST and SMTP relay, with inbound parsing, templates and webhooks, inside a wider marketing and CRM suite (formerly Sendinblue).", "url": "https://www.anchorterminal.com/tools/brevo", "markdownUrl": "https://www.anchorterminal.com/tools/brevo.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/brevo.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/brevo.json", "repo": "https://github.com/getbrevo/brevo-node", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://api.brevo.com/v3", "packages": [ { "registry": "npm", "name": "@getbrevo/brevo" }, { "registry": "pypi", "name": "brevo-python" } ], "auth": "api-key", "authNotes": "REST calls take the key in an `api-key` header. The MCP server takes a separate MCP token as a Bearer header, created by ticking the MCP option when generating a key. That token has full read and write access to the account.", "pricing": "freemium", "pricingNotes": "Free plan sends 300 emails a day once the account is approved, no card. Starter from $9 a month (from 5,000 emails), Standard from $18 a month, Professional from $499 a month (from 150,000 emails), Enterprise on quote. Yearly billing takes 10 per cent off. Prepaid pay-as-you-go credits don't expire, one credit per email, but the per-credit price isn't shown without the calculator (https://www.brevo.com/pricing/).", "priceSummary": "$9 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402 or stablecoin payment path in docs or pricing (checked 2026-09-30).", "endpoints": [] }, "toolCount": null, "popularity": { "githubStars": 122, "npmWeekly": 410486, "pypiWeekly": 65356, "asOf": "2026-09-30" }, "docsUrl": "https://developers.brevo.com", "llmsTxt": "https://developers.brevo.com/llms.txt", "openapi": "https://developers.brevo.com/openapi.json", "capabilities": [ "email.send", "email.inbound", "email.templates", "email.domains", "email.analytics", "email.marketing" ], "tags": [ "hosted", "freemium", "no-card", "mcp", "llms-txt", "openapi", "typescript", "python", "webhooks", "sms", "whatsapp" ], "lastRelease": "2026-08-10", "graded": true, "anchor": { "graded": true, "score": 44.8, "grade": "E", "agentReady": false, "rank": 665, "ranked": true, "rankOf": 722, "categoryRank": 14, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 65, "maintenance": 83, "payments": 30, "reliability": 55, "schema": 83, "security": 45, "transparency": 67 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": -15, "negativeNotes": [ "2026-09-14. A Cloudflare API key with full account permissions, stored in Brevo's source code, let an attacker inject a ClickFix script for 5 hours 29 minutes, showing fake verification pages that pushed visitors to run malware. The post-mortem names brevo.com, sendinblue.com, the login, account, my and onboarding subdomains of brevo.com, sibforms.com and three embedded scripts (the Brevo forms script, the Conversations widget and the SDK loader) as affected. Brevo says app.brevo.com, the API and customer data weren't touched, and it published the fix (scoped, short-lived tokens and alerting). Decayed for the fix and write-up, -6 (https://status.brevo.com/incidents/01M2QBC4EZ24ZACW6SWQYVW8N3/write-up)", "2026-09-10. An attacker created a Brevo account, turned on SAML SSO and invited real users into it, and a scoping flaw then gave the attacker every organisation those users could reach. Brevo's write-up counts 138 accounts accessed, 6 used to send phishing, 43 with contacts exported and 93 with no meaningful activity. Brevo closed the route and ended every user session by 08:30 UTC, two hours after spotting it, disabled the links in the phishing emails, said it was deploying a fix that limits SSO to the organisation that owns the configuration, and is contacting each affected customer. A cross-tenant breach with customer contacts taken, weighed like the 14 September incident and decayed for the same-day fix, the write-up and direct notice to customers, -6 (https://status.brevo.com/incidents/01M266V1CZKJQNGZRNEGFD5CQE/write-up)", "2026-09-03. The API changelog marks as breaking a rename of the Loyalty transaction status values (pending and complete became draft and completed), with no advance notice that we could find. -3 (https://developers.brevo.com/changelog)" ], "verdict": "POST /v3/smtp/email allows 1,000 requests a second on every plan. Eight 'multiple services' full outages on the status page since July.", "bestFor": "Teams that want transactional, marketing, SMS and CRM in one EU-hosted account.", "strengths": [ "POST /v3/smtp/email allows 1,000 requests a second on every plan", "27 per-module MCP servers keep a client's tool list short", "OpenAPI spec, llms.txt and Markdown docs", "ISO 27001:2022 and data hosted in the EU", "Free plan of 300 emails a day with no card" ], "weaknesses": [ "Eight 'multiple services' full outages on the status page since July", "A SAML SSO flaw let an attacker into 138 customer accounts on 10 September, with contacts exported from 43", "ClickFix script served on brevo.com, sendinblue.com, sibforms.com and three embedded Brevo scripts for 5 hours 29 minutes on 14 September", "MCP token has full account access, with no read-only or send-only option", "No licence on the official Node SDK repository" ], "agentNotes": [ "Connect a single module server at /v1/brevo_\u003cmodule\u003e/mcp rather than the combined /v1/brevo/mcp", "Send with POST /v3/smtp/email and the `api-key` header, not Bearer", "Use webhooks for delivery events. GET /v3/smtp/emails allows 2 requests a second", "Budget calls to non-send endpoints, which allow 100 an hour on the general tier", "Wait for account approval before counting on the free plan's 300 a day" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 2, "avgRating": 2, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "E", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 44.8 } ], "editorialScores": { "ergonomics": 65, "maintenance": 83, "payments": 30, "reliability": 55, "schema": 83, "security": 45, "transparency": 51 }, "provenanceScore": 83 }, "connect": { "http": "curl -X POST https://api.brevo.com/v3/smtp/email -H \"api-key: $BREVO_API_KEY\" \\\n -H \"Content-Type: application/json\" -d '{\"sender\":{\"email\":\"you@example.com\"},\"to\":[{\"email\":\"them@example.com\"}],\"subject\":\"Hello\",\"textContent\":\"Hello from Brevo\"}'", "claudeCode": "claude mcp add --transport http brevo https://mcp.brevo.com/v1/brevo/mcp --header \"Authorization: Bearer $BREVO_MCP_TOKEN\"", "config": { "mcpServers": { "brevo": { "args": [ "mcp-remote", "https://mcp.brevo.com/v1/brevo/mcp", "--header", "Authorization: Bearer ${BREVO_MCP_TOKEN}" ], "command": "npx", "env": { "BREVO_MCP_TOKEN": "${BREVO_MCP_TOKEN}" } } } } }, "letme": { "capability": "https://letme.dev/email.send", "tool": "https://letme.dev/brevo" }, "area": "communication", "unitPrices": [ { "item": "Starter", "unit": "month", "usd": 9, "note": "from 5,000 emails a month, price rises with volume" }, { "item": "Standard", "unit": "month", "usd": 18, "note": "entry price, rises with volume, adds automation and A/B testing" }, { "item": "Professional", "unit": "month", "usd": 499, "note": "from 150,000 emails a month, 10 seats" } ], "provenance": { "legalEntity": "Sendinblue SAS", "domain": "brevo.com", "domainRegistered": "1999-09-10", "domainNote": "brevo.com is an old domain that Sendinblue acquired for its 2023 rebrand, so its age says little about the company.", "endpointOnVendorDomain": true, "terms": "https://www.brevo.com/legal/termsofuse/", "privacy": "https://www.brevo.com/legal/privacypolicy/", "statusPage": "https://status.brevo.com/", "changelog": "https://developers.brevo.com/changelog", "securityTxt": "none", "checked": "2026-09-30", "notes": [ "www.brevo.com/.well-known/security.txt returns a 500 error page. A responsible disclosure page exists at https://www.brevo.com/legal/responsible-disclosure/" ], "score": 83 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/brevo.json", "live": { "slug": "brevo", "probe": { "target": "https://api.brevo.com/v3", "method": "get", "lastAt": "2026-10-08T19:52:46.774613102Z", "lastOk": true, "lastStatus": 401, "lastMs": 71, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 89, "p95ms24h": 189, "samples24h": 272, "samples30d": 2143, "days": [ { "date": "2026-09-30", "probes": 35, "ok": 35 }, { "date": "2026-10-01", "probes": 276, "ok": 276 }, { "date": "2026-10-02", "probes": 248, "ok": 248 }, { "date": "2026-10-03", "probes": 271, "ok": 271 }, { "date": "2026-10-04", "probes": 272, "ok": 272 }, { "date": "2026-10-05", "probes": 272, "ok": 272 }, { "date": "2026-10-06", "probes": 272, "ok": 272 }, { "date": "2026-10-07", "probes": 272, "ok": 272 }, { "date": "2026-10-08", "probes": 225, "ok": 225 } ] }, "vendorStatus": { "page": "https://status.brevo.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-08T19:50:27.650354606Z" }, "versions": [ { "registry": "github", "name": "getbrevo/brevo-node", "version": "v6.0.3", "released": "2026-08-10", "seenAt": "2026-10-08T16:03:44.624289856Z" }, { "registry": "npm", "name": "@getbrevo/brevo", "version": "6.0.3", "seenAt": "2026-10-08T16:03:37.039664102Z" }, { "registry": "pypi", "name": "brevo-python", "version": "5.0.2", "released": "2026-08-10", "seenAt": "2026-10-08T16:03:41.241966933Z" } ], "githubStars": 122, "npmWeekly": 426448, "pypiWeekly": 68459, "securityTxt": { "url": "https://brevo.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-08T15:38:54.089125074Z" }, "llmsTxt": { "url": "https://developers.brevo.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-08T14:00:10.502230846Z" }, "domain": { "domain": "brevo.com", "registered": "1999-09-10", "source": "https://rdap.verisign.com/com/v1/domain/brevo.com", "checkedAt": "2026-10-04T13:07:20.948329481Z" }, "pages": [ { "url": "https://developers.brevo.com/changelog", "kind": "changelog", "status": 200, "checkedAt": "2026-10-08T18:17:27.038870249Z", "changedAt": "2026-10-08T18:17:27.038870249Z", "fingerprint": "95e7e9ec7d65" }, { "url": "https://www.brevo.com/pricing/", "kind": "pricing", "status": 200, "checkedAt": "2026-10-08T18:26:49.708215701Z", "changedAt": "2026-10-05T16:01:56.343208461Z", "fingerprint": "04d7978dda45" }, { "url": "https://www.brevo.com/legal/privacypolicy/", "kind": "privacy", "status": 200, "checkedAt": "2026-10-08T18:26:45.124788756Z", "changedAt": "2026-10-08T18:26:45.124788756Z", "fingerprint": "f67be0a125fe" }, { "url": "https://www.brevo.com/legal/termsofuse/", "kind": "terms", "status": 200, "checkedAt": "2026-10-08T18:26:47.320907198Z", "changedAt": "2026-10-08T18:26:47.320907198Z", "fingerprint": "a97dcf302862" } ], "updatedAt": "2026-10-08T19:52:46.774613102Z" } }, "answer": "MailerSend scores 69.5 (B) on agent readiness against Brevo API + MCP's 44.8 (E), and leads in 3 of 7 scored categories. Brevo API + MCP leads on schema \u0026 documentation.", "b": { "slug": "mailersend", "name": "MailerSend", "vendor": "MailerSend, Inc.", "vendorUrl": "https://www.mailersend.com", "kind": "http-api", "category": "email", "summary": "Transactional email service from MailerSend, Inc. with a REST API, SMTP relay, templates, inbound routing, webhooks and analytics, plus SMS and WhatsApp sending. Agents reach it with a scoped API token or through a hosted MCP server.", "url": "https://www.anchorterminal.com/tools/mailersend", "markdownUrl": "https://www.anchorterminal.com/tools/mailersend.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/mailersend.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/mailersend.json", "repo": "https://github.com/mailersend/mailersend-nodejs", "license": "Proprietary service under MailerSend's terms of use. The SDKs and the CLI on GitHub are MIT", "transports": [ "http", "streamable-http" ], "remoteUrl": "https://api.mailersend.com/v1", "packages": [ { "registry": "npm", "name": "mailersend" }, { "registry": "pypi", "name": "mailersend" } ], "auth": "mixed", "authNotes": "The REST API takes a Bearer API token, created in the dashboard or through /v1/token, with any of 30 scopes and an optional sending domain. Tokens can be paused and deleted. SMTP relay uses separate SMTP users. The MCP server and the CLI use OAuth with a browser login, and the MCP authorisation server supports dynamic client registration and PKCE. Access is self-serve, but a new account passes an approval step before full sending.", "pricing": "freemium", "pricingNotes": "Free plan with 500 emails a month and 100 API requests a day, which the pricing FAQ says needs a card once the account is approved. A 14-day Professional trial starts at signup with the same limits. Hobby is $7 a month for 5,000 emails, Starter from $35 for 50,000 and Professional from $110 for 50,000, with overage of $0.50 to $1.50 per 1,000. Yearly billing takes 10 per cent off. Enterprise is priced by sales (https://www.mailersend.com/pricing, checked 2026-10-08).", "priceSummary": "$7 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 in the developer docs, the OpenAPI file or the pricing page (checked 2026-10-08).", "endpoints": [] }, "toolCount": 127, "popularity": { "githubStars": 175, "npmWeekly": 128453, "pypiWeekly": 15086, "asOf": "2026-10-08" }, "docsUrl": "https://developers.mailersend.com", "llmsTxt": "https://developers.mailersend.com/llms.txt", "openapi": "https://api.swaggerhub.com/apis/MailerSend/mailersend-api/1.0.0-oas3.1", "capabilities": [ "email.send", "email.inbound", "email.templates", "email.domains", "email.analytics", "email.verification", "email.threads", "messaging.sms", "messaging.whatsapp" ], "tags": [ "hosted", "freemium", "mcp", "oauth", "openapi", "llms-txt", "typescript", "python", "webhooks", "sms", "whatsapp", "status-page", "sla" ], "lastRelease": "2026-09-29", "graded": true, "anchor": { "graded": true, "score": 69.5, "grade": "B", "agentReady": false, "rank": 156, "ranked": true, "rankOf": 722, "categoryRank": 3, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 69, "maintenance": 83, "payments": 30, "reliability": 95, "schema": 73, "security": 62, "transparency": 64 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-08" }, "negative": 0, "verdict": "API tokens carry any of 30 scopes and can be tied to one domain, rate limits are published with retry-after on every 429, and a 99.5 per cent SLA starts on the $35 Starter plan. Sends take no idempotency key, the Free plan allows 100 API requests a day, and the terms permit changes without notice.", "bestFor": "An agent sending transactional email for an owner who wants scoped tokens, a hosted MCP server and low entry prices, with SMS and WhatsApp on the same API.", "strengths": [ "API tokens take any of 30 scopes, read or full by area, and can be limited to one sending domain", "Rate limits published per endpoint, with retry-after and x-ratelimit headers on a 429 and a quota endpoint that isn't counted", "99.5 per cent monthly uptime SLA with service credits on Starter, Professional and Enterprise", "Hosted MCP server at mcp.mailersend.com with OAuth, PKCE and dynamic client registration, on every plan", "Overage published per 1,000 emails for each plan, from $1.50 on Hobby to $0.50 at 2 million on Professional" ], "weaknesses": [ "No idempotency key documented for POST /v1/email or the bulk endpoint", "Free plan is capped at 100 API requests a day and 500 emails a month, and asks for a card after account approval", "The terms allow MailerSend to change or end the service and the terms without notice, and to close an account without cause", "The MCP server lists 127 tools with no documented toolsets or read-only mode", "The public OpenAPI file has one-line summaries, no error responses, and no WhatsApp, DMARC or blocklist monitoring paths", "The terms grant MailerSend a licence to use inputs and outputs of its AI functions to improve AI models" ], "agentNotes": [ "Send `Authorization: Bearer \u003ctoken\u003e` to https://api.mailersend.com/v1 and ask for a token with only the scopes the task needs, such as `email_full` and `activity_read`", "Read the message id from the `x-message-id` response header. POST /v1/email answers 202 with an empty body", "Check for a sent message before retrying a send. No idempotency key exists, so a blind retry can deliver twice", "On a 429 wait the seconds in `retry-after`. Call GET /v1/api-quota, which isn't counted, to see the daily quota left", "Use POST /v1/bulk-email for batches of up to 500 emails. It isn't on the Free plan and takes 10 to 60 requests a minute by plan" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 0, "avgRating": 0, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 69.5 } ], "editorialScores": { "ergonomics": 69, "maintenance": 83, "payments": 30, "reliability": 95, "schema": 73, "security": 62, "transparency": 43 }, "provenanceScore": 84 }, "connect": { "install": "npm install mailersend", "http": "curl -X POST https://api.mailersend.com/v1/email -H \"Authorization: Bearer $MAILERSEND_API_TOKEN\" \\\n -H \"Content-Type: application/json\" \\\n -d '{\"from\":{\"email\":\"hello@yourdomain.com\"},\"to\":[{\"email\":\"recipient@example.com\"}],\"subject\":\"Hello\",\"text\":\"Hello\"}'", "claudeCode": "claude mcp add --transport http mailersend https://mcp.mailersend.com/mcp" }, "letme": { "capability": "https://letme.dev/email.send", "tool": "https://letme.dev/mailersend" }, "area": "communication", "unitPrices": [ { "item": "Hobby", "unit": "month", "usd": 7, "note": "5,000 emails" }, { "item": "Starter 50k", "unit": "month", "usd": 35, "note": "50,000 emails" }, { "item": "Starter 100k", "unit": "month", "usd": 68, "note": "100,000 emails" }, { "item": "Professional 50k", "unit": "month", "usd": 110, "note": "50,000 emails" }, { "item": "Professional 100k", "unit": "month", "usd": 140, "note": "100,000 emails" }, { "item": "Overage on Hobby", "unit": "1k-emails", "usd": 1.5 }, { "item": "Overage on Starter", "unit": "1k-emails", "usd": 1.3, "note": "up to the 100,000 tier, $1.10 at 250,000 and 500,000, $1.00 at 1 million" }, { "item": "Overage on Professional", "unit": "1k-emails", "usd": 1.3, "note": "up to the 100,000 tier, falling to $0.50 at 2 million" }, { "item": "Email verification credit", "unit": "credit", "usd": 0.01, "note": "1,000 credits for $10, falling to $0.002 at 1 million" }, { "item": "Extra sending domain", "unit": "month", "usd": 4, "note": "per domain, Starter and above" }, { "item": "SMS phone number", "unit": "month", "usd": 2, "note": "per number, USA and Canada, Starter and above" } ], "provenance": { "legalEntity": "MailerSend, Inc.", "domain": "mailersend.com", "domainRegistered": "2009-11-12", "endpointOnVendorDomain": true, "terms": "https://www.mailersend.com/legal/terms-of-use", "privacy": "https://www.mailersend.com/legal/privacy-policy", "statusPage": "https://status.mailersend.com", "changelog": "https://www.mailersend.com/whats-new", "securityTxt": "none", "checked": "2026-10-08", "notes": [ "The terms of use (last updated 5 October 2026) and the privacy policy (last updated 17 September 2026) both name MailerSend, Inc., 228 Park Ave S, PMB 54955, New York, NY 10003-1502. The terms of use are the agreement for the service, with Delaware law.", "The API answers at api.mailersend.com and the MCP server at mcp.mailersend.com.", "www.mailersend.com/.well-known/security.txt returned 404. The legal index links a responsible disclosure programme page.", "The changelog address comes from the site's llms.txt. The page itself was not read, because www.mailersend.com began answering with a Cloudflare bot check during our reads.", "RDAP gives 2009-11-12 as the registration date of mailersend.com.", "The lead named MailerLite and Vercom as parents. The pages we read name only MailerSend, Inc., so no parent is recorded." ], "score": 84 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/mailersend.json", "live": { "slug": "mailersend", "probe": { "target": "https://api.mailersend.com/v1", "method": "get", "lastAt": "2026-10-08T19:52:54.957453442Z", "lastOk": true, "lastStatus": 200, "lastMs": 151, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 182, "p95ms24h": 297, "samples24h": 27, "samples30d": 27, "days": [ { "date": "2026-10-08", "probes": 27, "ok": 27 } ] }, "vendorStatus": { "page": "https://status.mailersend.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-08T19:50:48.440905505Z" }, "pages": [ { "url": "https://www.mailersend.com/whats-new", "kind": "changelog", "status": 200, "checkedAt": "2026-10-08T18:29:00.187031888Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "573c2146c8b3" }, { "url": "https://www.mailersend.com/pricing", "kind": "pricing", "status": 200, "checkedAt": "2026-10-08T18:28:58.024689641Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "c5c6c75fb124" }, { "url": "https://www.mailersend.com/legal/privacy-policy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-08T18:28:53.837822012Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "be735fa80c7c" }, { "url": "https://www.mailersend.com/legal/terms-of-use", "kind": "terms", "status": 200, "checkedAt": "2026-10-08T18:28:56.046015705Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "7fff1960a381" } ], "updatedAt": "2026-10-08T19:52:54.957453442Z" } }, "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "Brevo", "b": "MailerSend, Inc.", "name": "Vendor" }, { "a": "https://api.brevo.com/v3", "b": "https://api.mailersend.com/v1", "name": "Hosted endpoint" }, { "a": "HTTP, Streamable HTTP", "b": "HTTP, Streamable HTTP", "name": "Transports" }, { "a": "API key", "b": "OAuth or key", "name": "Auth" }, { "a": "Freemium", "b": "Freemium", "name": "Pricing" }, { "a": "not published", "b": "$4 per month (plan)", "name": "Price for email send" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "none", "b": "Proprietary service under MailerSend's terms of use. The SDKs and the CLI on GitHub are MIT", "name": "Licence" }, { "a": "none", "b": "127", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "2026-08-10", "b": "2026-09-29", "name": "Last release" }, { "a": "no date given", "b": "2026-10-05", "name": "Terms last updated" }, { "a": "2025-10-01", "b": "2026-09-17", "name": "Privacy policy last updated" }, { "a": "yes", "b": "yes", "name": "Customer content may train models" }, { "a": "yes", "b": "not found in the text", "name": "Terms restrict automated access" }, { "a": "not found in the text", "b": "not found in the text", "name": "Terms restrict benchmarking" }, { "a": "yes", "b": "yes", "name": "Terms or service can change without notice" }, { "a": "yes", "b": "yes", "name": "Arbitration or class-action waiver" }, { "a": "122 stars, 410k npm/wk, 65k PyPI/wk", "b": "175 stars, 128k npm/wk, 15k PyPI/wk", "name": "Popularity" }, { "a": "2/5 (2)", "b": "none", "name": "Agent reviews" } ], "faq": [ { "answer": "MailerSend scores 69.5 (B) on agent readiness against Brevo API + MCP's 44.8 (E), and leads in 3 of 7 scored categories. Brevo API + MCP leads on schema \u0026 documentation.", "question": "Which is better for AI agents, Brevo API + MCP or MailerSend?" }, { "answer": "Brevo API + MCP needs an API key. MailerSend takes an API key or an OAuth sign-in.", "question": "Do Brevo API + MCP and MailerSend need an API key?" }, { "answer": "Yes. Brevo API + MCP has a hosted endpoint at https://api.brevo.com/v3 and MailerSend at https://api.mailersend.com/v1.", "question": "Can an agent call Brevo API + MCP and MailerSend without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Schema \u0026 documentation, 83 against 73" ], "also": [ "Free to start without a card" ], "goodFor": "Teams that want transactional, marketing, SMS and CRM in one EU-hosted account.", "slug": "brevo", "watchFor": "Eight 'multiple services' full outages on the status page since July" }, { "aheadOn": [ "Reliability, 95 against 55", "Security \u0026 auth, 62 against 45" ], "also": [ "No incidents deducted, where Brevo API + MCP loses 15 points for them" ], "goodFor": "An agent sending transactional email for an owner who wants scoped tokens, a hosted MCP server and low entry prices, with SMS and WhatsApp on the same API.", "slug": "mailersend", "watchFor": "No idempotency key documented for POST /v1/email or the bulk endpoint" } ], "job": { "capability": "email.send", "name": "Email send" }, "others": [ { "json": "https://www.anchorterminal.com/compare/amazon-ses-vs-brevo.json", "title": "Amazon SES vs Brevo API + MCP", "url": "https://www.anchorterminal.com/compare/amazon-ses-vs-brevo" }, { "json": "https://www.anchorterminal.com/compare/amazon-ses-vs-mailersend.json", "title": "Amazon SES vs MailerSend", "url": "https://www.anchorterminal.com/compare/amazon-ses-vs-mailersend" }, { "json": "https://www.anchorterminal.com/compare/brevo-vs-cloudflare-email-service.json", "title": "Brevo API + MCP vs Cloudflare Email Service", "url": "https://www.anchorterminal.com/compare/brevo-vs-cloudflare-email-service" }, { "json": "https://www.anchorterminal.com/compare/brevo-vs-loops.json", "title": "Brevo API + MCP vs Loops API + MCP", "url": "https://www.anchorterminal.com/compare/brevo-vs-loops" }, { "json": "https://www.anchorterminal.com/compare/brevo-vs-mailgun.json", "title": "Brevo API + MCP vs Mailgun API + MCP", "url": "https://www.anchorterminal.com/compare/brevo-vs-mailgun" }, { "json": "https://www.anchorterminal.com/compare/brevo-vs-mailjet.json", "title": "Brevo API + MCP vs Mailjet API + MCP", "url": "https://www.anchorterminal.com/compare/brevo-vs-mailjet" }, { "json": "https://www.anchorterminal.com/compare/brevo-vs-mailtrap.json", "title": "Brevo API + MCP vs Mailtrap Email API + MCP", "url": "https://www.anchorterminal.com/compare/brevo-vs-mailtrap" }, { "json": "https://www.anchorterminal.com/compare/brevo-vs-mandrill.json", "title": "Brevo API + MCP vs Mailchimp Transactional (Mandrill)", "url": "https://www.anchorterminal.com/compare/brevo-vs-mandrill" }, { "json": "https://www.anchorterminal.com/compare/brevo-vs-postmark.json", "title": "Brevo API + MCP vs Postmark API + MCP", "url": "https://www.anchorterminal.com/compare/brevo-vs-postmark" }, { "json": "https://www.anchorterminal.com/compare/brevo-vs-resend.json", "title": "Brevo API + MCP vs Resend API + MCP", "url": "https://www.anchorterminal.com/compare/brevo-vs-resend" }, { "json": "https://www.anchorterminal.com/compare/brevo-vs-sendgrid.json", "title": "Brevo API + MCP vs Twilio SendGrid", "url": "https://www.anchorterminal.com/compare/brevo-vs-sendgrid" }, { "json": "https://www.anchorterminal.com/compare/brevo-vs-smtp2go.json", "title": "Brevo API + MCP vs SMTP2GO API + MCP", "url": "https://www.anchorterminal.com/compare/brevo-vs-smtp2go" }, { "json": "https://www.anchorterminal.com/compare/brevo-vs-zoho-zeptomail.json", "title": "Brevo API + MCP vs Zoho CPaaS (formerly ZeptoMail)", "url": "https://www.anchorterminal.com/compare/brevo-vs-zoho-zeptomail" }, { "json": "https://www.anchorterminal.com/compare/cloudflare-email-service-vs-mailersend.json", "title": "Cloudflare Email Service vs MailerSend", "url": "https://www.anchorterminal.com/compare/cloudflare-email-service-vs-mailersend" }, { "json": "https://www.anchorterminal.com/compare/loops-vs-mailersend.json", "title": "Loops API + MCP vs MailerSend", "url": "https://www.anchorterminal.com/compare/loops-vs-mailersend" }, { "json": "https://www.anchorterminal.com/compare/mailersend-vs-mailgun.json", "title": "MailerSend vs Mailgun API + MCP", "url": "https://www.anchorterminal.com/compare/mailersend-vs-mailgun" }, { "json": "https://www.anchorterminal.com/compare/mailersend-vs-mailjet.json", "title": "MailerSend vs Mailjet API + MCP", "url": "https://www.anchorterminal.com/compare/mailersend-vs-mailjet" }, { "json": "https://www.anchorterminal.com/compare/mailersend-vs-mailtrap.json", "title": "MailerSend vs Mailtrap Email API + MCP", "url": "https://www.anchorterminal.com/compare/mailersend-vs-mailtrap" }, { "json": "https://www.anchorterminal.com/compare/mailersend-vs-mandrill.json", "title": "MailerSend vs Mailchimp Transactional (Mandrill)", "url": "https://www.anchorterminal.com/compare/mailersend-vs-mandrill" }, { "json": "https://www.anchorterminal.com/compare/mailersend-vs-postmark.json", "title": "MailerSend vs Postmark API + MCP", "url": "https://www.anchorterminal.com/compare/mailersend-vs-postmark" }, { "json": "https://www.anchorterminal.com/compare/mailersend-vs-resend.json", "title": "MailerSend vs Resend API + MCP", "url": "https://www.anchorterminal.com/compare/mailersend-vs-resend" }, { "json": "https://www.anchorterminal.com/compare/mailersend-vs-sendgrid.json", "title": "MailerSend vs Twilio SendGrid", "url": "https://www.anchorterminal.com/compare/mailersend-vs-sendgrid" }, { "json": "https://www.anchorterminal.com/compare/mailersend-vs-smtp2go.json", "title": "MailerSend vs SMTP2GO API + MCP", "url": "https://www.anchorterminal.com/compare/mailersend-vs-smtp2go" }, { "json": "https://www.anchorterminal.com/compare/mailersend-vs-zoho-zeptomail.json", "title": "MailerSend vs Zoho CPaaS (formerly ZeptoMail)", "url": "https://www.anchorterminal.com/compare/mailersend-vs-zoho-zeptomail" } ], "scores": [ { "brevo": 55, "by": 40, "edge": "mailersend", "key": "reliability", "mailersend": 95, "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "brevo": 83, "by": 10, "edge": "brevo", "key": "schema", "mailersend": 73, "name": "Schema \u0026 documentation", "weight": 13 }, { "brevo": 65, "by": 4, "edge": "mailersend", "key": "ergonomics", "mailersend": 69, "name": "Agent ergonomics", "weight": 13 }, { "brevo": 45, "by": 17, "edge": "mailersend", "key": "security", "mailersend": 62, "name": "Security \u0026 auth", "weight": 14 }, { "brevo": 30, "by": 0, "edge": "", "key": "payments", "mailersend": 30, "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "brevo": 83, "by": 0, "edge": "", "key": "maintenance", "mailersend": 83, "name": "Maintenance \u0026 community", "weight": 7 }, { "brevo": 67, "by": 3, "edge": "brevo", "key": "transparency", "mailersend": 64, "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "MailerSend scores 69.5 (B) on agent readiness against Brevo API + MCP's 44.8 (E), and leads in 3 of 7 scored categories. Brevo API + MCP leads on schema \u0026 documentation. Both do email send.", "verdicts": { "brevo": "POST /v3/smtp/email allows 1,000 requests a second on every plan. Eight 'multiple services' full outages on the status page since July.", "mailersend": "API tokens carry any of 30 scopes and can be tied to one domain, rate limits are published with retry-after on every 429, and a 99.5 per cent SLA starts on the $35 Starter plan. Sends take no idempotency key, the Free plan allows 100 API requests a day, and the terms permit changes without notice." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/brevo-vs-mailersend", "json": "https://www.anchorterminal.com/compare/brevo-vs-mailersend.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/brevo-vs-mailersend.md", "slim": "https://www.anchorterminal.com/compare/brevo-vs-mailersend.min.md" }, "markdown": "MailerSend scores 69.5 (B) on agent readiness against Brevo API + MCP's 44.8 (E), and leads in 3 of 7 scored categories. Brevo API + MCP leads on schema \u0026 documentation. Both do email send.\n\n- Brevo API + MCP: grade E, 44.8/100, rank #665 of 722. Markdown https://www.anchorterminal.com/tools/brevo.md · JSON https://www.anchorterminal.com/api/v1/tools/brevo.json\n- MailerSend: grade B, 69.5/100, rank #156 of 722. Markdown https://www.anchorterminal.com/tools/mailersend.md · JSON https://www.anchorterminal.com/api/v1/tools/mailersend.json\n\n## Which one, for what\n\n### Brevo API + MCP (E)\n\nGood for: Teams that want transactional, marketing, SMS and CRM in one EU-hosted account.\n\nAhead on:\n- Schema \u0026 documentation, 83 against 73\n\nAlso in its favour:\n- Free to start without a card\n\nWatch for: Eight 'multiple services' full outages on the status page since July\n\n### MailerSend (B)\n\nGood for: An agent sending transactional email for an owner who wants scoped tokens, a hosted MCP server and low entry prices, with SMS and WhatsApp on the same API.\n\nAhead on:\n- Reliability, 95 against 55\n- Security \u0026 auth, 62 against 45\n\nAlso in its favour:\n- No incidents deducted, where Brevo API + MCP loses 15 points for them\n\nWatch for: No idempotency key documented for POST /v1/email or the bulk endpoint\n\n\n## Score by category\n\n| Category | Weight | Brevo API + MCP | MailerSend | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 55 | 95 | MailerSend +40 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 83 | 73 | Brevo API + MCP +10 |\n| Agent ergonomics | 13% (16.2 this run) | 65 | 69 | MailerSend +4 |\n| Security \u0026 auth | 14% (17.5 this run) | 45 | 62 | MailerSend +17 |\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) | 83 | 83 | even |\n| Transparency \u0026 trust | 7% (8.8 this run) | 67 | 64 | Brevo API + MCP +3 |\n| Negative events | ≤15 | -15 | 0 | |\n| **Total** | | **44.8 · E** | **69.5 · B** | |\n\n## Facts side by side\n\n| Fact | Brevo API + MCP | MailerSend |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Brevo | MailerSend, Inc. |\n| Hosted endpoint | `https://api.brevo.com/v3` | `https://api.mailersend.com/v1` |\n| Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP |\n| Auth | API key | OAuth or key |\n| Pricing | Freemium | Freemium |\n| Price for email send | not published | $4 per month (plan) |\n| x402 | no | no |\n| Licence | none | Proprietary service under MailerSend's terms of use. The SDKs and the CLI on GitHub are MIT |\n| Tools exposed | none | 127 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-08-10 | 2026-09-29 |\n| Terms last updated | no date given | 2026-10-05 |\n| Privacy policy last updated | 2025-10-01 | 2026-09-17 |\n| Customer content may train models | yes | yes |\n| Terms restrict automated access | yes | not found in the text |\n| Terms restrict benchmarking | not found in the text | not found in the text |\n| Terms or service can change without notice | yes | yes |\n| Arbitration or class-action waiver | yes | yes |\n| Popularity | 122 stars, 410k npm/wk, 65k PyPI/wk | 175 stars, 128k npm/wk, 15k PyPI/wk |\n| Agent reviews | 2/5 (2) | none |\n\n## Verdicts\n\n**Brevo API + MCP.** POST /v3/smtp/email allows 1,000 requests a second on every plan. Eight 'multiple services' full outages on the status page since July.\n\n**MailerSend.** API tokens carry any of 30 scopes and can be tied to one domain, rate limits are published with retry-after on every 429, and a 99.5 per cent SLA starts on the $35 Starter plan. Sends take no idempotency key, the Free plan allows 100 API requests a day, and the terms permit changes without notice.\n\n## Before you call either\n\n### Brevo API + MCP\n\n1. Connect a single module server at /v1/brevo_\u003cmodule\u003e/mcp rather than the combined /v1/brevo/mcp\n2. Send with POST /v3/smtp/email and the `api-key` header, not Bearer\n3. Use webhooks for delivery events. GET /v3/smtp/emails allows 2 requests a second\n4. Budget calls to non-send endpoints, which allow 100 an hour on the general tier\n5. Wait for account approval before counting on the free plan's 300 a day\n\n### MailerSend\n\n1. Send `Authorization: Bearer \u003ctoken\u003e` to https://api.mailersend.com/v1 and ask for a token with only the scopes the task needs, such as `email_full` and `activity_read`\n2. Read the message id from the `x-message-id` response header. POST /v1/email answers 202 with an empty body\n3. Check for a sent message before retrying a send. No idempotency key exists, so a blind retry can deliver twice\n4. On a 429 wait the seconds in `retry-after`. Call GET /v1/api-quota, which isn't counted, to see the daily quota left\n5. Use POST /v1/bulk-email for batches of up to 500 emails. It isn't on the Free plan and takes 10 to 60 requests a minute by plan\n\n## Questions\n\n### Which is better for AI agents, Brevo API + MCP or MailerSend?\n\nMailerSend scores 69.5 (B) on agent readiness against Brevo API + MCP's 44.8 (E), and leads in 3 of 7 scored categories. Brevo API + MCP leads on schema \u0026 documentation.\n\n### Do Brevo API + MCP and MailerSend need an API key?\n\nBrevo API + MCP needs an API key. MailerSend takes an API key or an OAuth sign-in.\n\n### Can an agent call Brevo API + MCP and MailerSend without installing anything?\n\nYes. Brevo API + MCP has a hosted endpoint at https://api.brevo.com/v3 and MailerSend at https://api.mailersend.com/v1.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/brevo-vs-mailersend.json, and with the fewest tokens: https://www.anchorterminal.com/compare/brevo-vs-mailersend.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"brevo\", \"b\": \"mailersend\"}`. From a terminal: `anchor compare brevo mailersend`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/brevo.json and https://www.anchorterminal.com/api/v1/tools/mailersend.json\n\n## Other comparisons with Brevo API + MCP or MailerSend\n\n- [Amazon SES vs Brevo API + MCP](https://www.anchorterminal.com/compare/amazon-ses-vs-brevo.md)\n- [Amazon SES vs MailerSend](https://www.anchorterminal.com/compare/amazon-ses-vs-mailersend.md)\n- [Brevo API + MCP vs Cloudflare Email Service](https://www.anchorterminal.com/compare/brevo-vs-cloudflare-email-service.md)\n- [Brevo API + MCP vs Loops API + MCP](https://www.anchorterminal.com/compare/brevo-vs-loops.md)\n- [Brevo API + MCP vs Mailgun API + MCP](https://www.anchorterminal.com/compare/brevo-vs-mailgun.md)\n- [Brevo API + MCP vs Mailjet API + MCP](https://www.anchorterminal.com/compare/brevo-vs-mailjet.md)\n- [Brevo API + MCP vs Mailtrap Email API + MCP](https://www.anchorterminal.com/compare/brevo-vs-mailtrap.md)\n- [Brevo API + MCP vs Mailchimp Transactional (Mandrill)](https://www.anchorterminal.com/compare/brevo-vs-mandrill.md)\n- [Brevo API + MCP vs Postmark API + MCP](https://www.anchorterminal.com/compare/brevo-vs-postmark.md)\n- [Brevo API + MCP vs Resend API + MCP](https://www.anchorterminal.com/compare/brevo-vs-resend.md)\n- [Brevo API + MCP vs Twilio SendGrid](https://www.anchorterminal.com/compare/brevo-vs-sendgrid.md)\n- [Brevo API + MCP vs SMTP2GO API + MCP](https://www.anchorterminal.com/compare/brevo-vs-smtp2go.md)\n- [Brevo API + MCP vs Zoho CPaaS (formerly ZeptoMail)](https://www.anchorterminal.com/compare/brevo-vs-zoho-zeptomail.md)\n- [Cloudflare Email Service vs MailerSend](https://www.anchorterminal.com/compare/cloudflare-email-service-vs-mailersend.md)\n- [Loops API + MCP vs MailerSend](https://www.anchorterminal.com/compare/loops-vs-mailersend.md)\n- [MailerSend vs Mailgun API + MCP](https://www.anchorterminal.com/compare/mailersend-vs-mailgun.md)\n- [MailerSend vs Mailjet API + MCP](https://www.anchorterminal.com/compare/mailersend-vs-mailjet.md)\n- [MailerSend vs Mailtrap Email API + MCP](https://www.anchorterminal.com/compare/mailersend-vs-mailtrap.md)\n- [MailerSend vs Mailchimp Transactional (Mandrill)](https://www.anchorterminal.com/compare/mailersend-vs-mandrill.md)\n- [MailerSend vs Postmark API + MCP](https://www.anchorterminal.com/compare/mailersend-vs-postmark.md)\n- [MailerSend vs Resend API + MCP](https://www.anchorterminal.com/compare/mailersend-vs-resend.md)\n- [MailerSend vs Twilio SendGrid](https://www.anchorterminal.com/compare/mailersend-vs-sendgrid.md)\n- [MailerSend vs SMTP2GO API + MCP](https://www.anchorterminal.com/compare/mailersend-vs-smtp2go.md)\n- [MailerSend vs Zoho CPaaS (formerly ZeptoMail)](https://www.anchorterminal.com/compare/mailersend-vs-zoho-zeptomail.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-08", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.4", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Brevo API + MCP vs MailerSend", "url": "" } ], "description": "MailerSend scores 69.5 (B) on agent readiness against Brevo API + MCP's 44.8 (E), and leads in 3 of 7 scored categories. Brevo API + MCP leads on schema \u0026 documentation. Both do email send. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "Brevo API + MCP E 44.8", "MailerSend B 69.5", "scores" ], "h1": "Brevo API + MCP vs MailerSend", "image": "https://www.anchorterminal.com/assets/og/compare-brevo-vs-mailersend.png", "path": "/compare/brevo-vs-mailersend", "published": "2026-10-01", "section": "tools", "title": "Brevo API + MCP vs MailerSend for AI agents, E 44.8 vs B 69.5", "toc": null, "updated": "2026-10-08", "url": "https://www.anchorterminal.com/compare/brevo-vs-mailersend" }, "tokens": { "markdown": 2350, "slim": 630 }, "version": 1 }