{ "data": { "a": { "slug": "amazon-ses", "name": "Amazon SES", "vendor": "Amazon Web Services", "vendorUrl": "https://aws.amazon.com/ses/", "kind": "http-api", "category": "email", "summary": "AWS's email service for sending and receiving at scale, over the SES v2 API or SMTP, with templates, configuration sets, receipt rules and deliverability tooling.", "url": "https://www.anchorterminal.com/tools/amazon-ses", "markdownUrl": "https://www.anchorterminal.com/tools/amazon-ses.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/amazon-ses.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/amazon-ses.json", "repo": "https://github.com/aws/aws-sdk-js-v3", "license": "Apache-2.0", "transports": [ "http" ], "remoteUrl": "https://email.us-east-1.amazonaws.com/v2", "packages": [ { "registry": "npm", "name": "@aws-sdk/client-sesv2" }, { "registry": "pypi", "name": "boto3" } ], "auth": "mixed", "authNotes": "API calls are signed with AWS Signature Version 4 using IAM credentials. SMTP uses separate SMTP credentials derived from an IAM user. The AWS MCP Server can reach SES with IAM SigV4 or OAuth sign-in.", "pricing": "usage", "pricingNotes": "A la carte $0.10 per 1,000 emails sent or received, plus $0.12 a GB of attachments and $0.09 per 1,000 inbound chunks. Pricing plans since 2026 are Essentials $0.16 per 1,000 with no monthly fee, Pro $105 a month plus $0.22 per 1,000, Enterprise $500 a month plus $0.23 per 1,000, all falling with volume. Accounts with no SES use since 2025-06-01 start on Essentials from 2026-07-21. Standard dedicated IPs $24.95 a month each. New AWS customers get up to $200 in Free Tier credits (https://aws.amazon.com/ses/pricing/).", "priceSummary": "$105 / 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": null, "npmWeekly": 5083375, "pypiWeekly": null, "asOf": "2026-09-30" }, "docsUrl": "https://docs.aws.amazon.com/ses/latest/dg/Welcome.html", "llmsTxt": "https://docs.aws.amazon.com/ses/latest/dg/llms.txt", "capabilities": [ "email.send", "email.inbound", "email.templates", "email.domains", "email.analytics" ], "tags": [ "hosted", "card-required", "llms-txt", "typescript", "python", "enterprise" ], "lastRelease": "2026-09-29", "graded": true, "anchor": { "graded": true, "score": 75.1, "grade": "BB", "agentReady": true, "rank": 48, "ranked": true, "rankOf": 722, "categoryRank": 1, "methodology": "0.4", "run": "2026-10-01", "scores": { "ergonomics": 64, "maintenance": 85, "payments": 20, "reliability": 95, "schema": 85, "security": 87, "transparency": 77 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "verdict": "Sending starts at $0.10 per 1,000 emails on the a la carte plan. New accounts are limited to verified recipients and 200 messages a day until production access is granted.", "bestFor": "Teams already on AWS who send at volume and want IAM, CloudTrail and per-Region control.", "strengths": [ "$0.10 per 1,000 emails a la carte, falling to $0.11 per 1,000 above 100 million on Essentials", "IAM policies can limit a credential to SendEmail from one identity, and CloudTrail logs every call", "Covered by an AWS SLA and in scope for SOC 1, 2 and 3", "Inbound mail through receipt rules to S3, SNS or Lambda", "Smithy model for SES v2 published and updated six times since July" ], "weaknesses": [ "Sandbox limits new accounts to verified recipients and 200 messages a day until production access is granted", "SigV4 signing makes a plain curl or quick agent call awkward", "No SES-specific MCP server, and the AWS skill covers sending setup only", "No idempotency token on SendEmail, and over-quota messages are dropped", "security.txt on aws.amazon.com expired on 24 September 2026" ], "agentNotes": [ "Call GetAccount and check ProductionAccessEnabled and the send quota before emailing arbitrary recipients", "Verify the From domain as an identity first. Sends from unverified identities fail even in production", "Use the mailbox simulator (success@simulator.amazonses.com) to test bounces and complaints without hurting reputation", "Use the same Region the identity was verified in, since quotas and sandbox status are per Region", "On a throttling error, wait and retry the send. SES drops messages over quota rather than queueing them" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 8, "avgRating": 3.3, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "BB", "methodology": "0.4", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 75.1 } ], "editorialScores": { "ergonomics": 64, "maintenance": 85, "payments": 20, "reliability": 95, "schema": 85, "security": 87, "transparency": 59 }, "provenanceScore": 95 }, "connect": { "http": "curl -X POST https://email.us-east-1.amazonaws.com/v2/email/outbound-emails \\\n --aws-sigv4 \"aws:amz:us-east-1:ses\" --user \"$AWS_ACCESS_KEY_ID:$AWS_SECRET_ACCESS_KEY\" \\\n -H \"Content-Type: application/json\" -d '{\"FromEmailAddress\":\"you@example.com\",\"Destination\":{\"ToAddresses\":[\"them@example.com\"]},\"Content\":{\"Simple\":{\"Subject\":{\"Data\":\"Hello\"},\"Body\":{\"Text\":{\"Data\":\"Hello from SES\"}}}}}'" }, "letme": { "capability": "https://letme.dev/email.send", "tool": "https://letme.dev/amazon-ses" }, "sameCompany": [ "amazon-bedrock-guardrails", "amazon-transcribe", "amazon-polly", "aws-secrets-manager", "aws-mcp-servers", "amazon-location", "amazon-translate", "amazon-ads-api" ], "area": "communication", "unitPrices": [ { "item": "Outbound, a la carte", "unit": "1k-emails", "usd": 0.1, "note": "plus $0.12 a GB of attachments" }, { "item": "Inbound, a la carte", "unit": "1k-emails", "usd": 0.1, "note": "plus $0.09 per 1,000 incoming chunks" }, { "item": "Essentials plan", "unit": "1k-emails", "usd": 0.16, "note": "0 to 10M, no monthly fee, default for new accounts from 2026-07-21" }, { "item": "Pro plan", "unit": "month", "usd": 105, "note": "plus $0.22 per 1,000 emails, 1 managed dedicated IP included" }, { "item": "Pro plan emails", "unit": "1k-emails", "usd": 0.22, "note": "0 to 10M" }, { "item": "Enterprise plan", "unit": "month", "usd": 500, "note": "plus $0.23 per 1,000 emails" }, { "item": "Dedicated IP, standard", "unit": "month", "usd": 24.95, "note": "per IP" } ], "provenance": { "legalEntity": "Amazon Web Services, Inc.", "domain": "amazonaws.com", "domainRegistered": "2005-08-18", "domainNote": "The API runs on Amazon's amazonaws.com service domain, while the product and legal pages sit on aws.amazon.com (amazon.com registered 1994-11-01).", "endpointOnVendorDomain": true, "terms": "https://aws.amazon.com/agreement/", "privacy": "https://aws.amazon.com/privacy/", "statusPage": "https://health.aws.amazon.com/health/status", "changelog": "https://docs.aws.amazon.com/ses/latest/dg/doc-history.html", "securityTxt": "expired", "checked": "2026-09-30", "notes": [ "https://aws.amazon.com/.well-known/security.txt carries Expires 2026-09-24T16:25:03Z." ], "score": 95 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/amazon-ses.json", "live": { "slug": "amazon-ses", "probe": { "target": "https://email.us-east-1.amazonaws.com/v2", "method": "get", "lastAt": "2026-10-08T20:21:05.706046114Z", "lastOk": true, "lastStatus": 404, "lastMs": 287, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 256, "p95ms24h": 309, "samples24h": 272, "samples30d": 2148, "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": 230, "ok": 230 } ] }, "versions": [ { "registry": "github", "name": "aws/aws-sdk-js-v3", "version": "v3.1147.0", "released": "2026-10-06", "seenAt": "2026-10-08T15:58:04.623184788Z" }, { "registry": "npm", "name": "@aws-sdk/client-sesv2", "version": "3.1147.0", "seenAt": "2026-10-08T15:57:58.901285204Z" }, { "registry": "pypi", "name": "boto3", "version": "1.43.109", "released": "2026-10-07", "seenAt": "2026-10-08T15:58:01.12284842Z" } ], "githubStars": 3669, "npmWeekly": 6147406, "pypiWeekly": 573748207, "securityTxt": { "url": "https://amazonaws.com/.well-known/security.txt", "state": "expired", "expires": "2026-09-24T16:25:03.000Z", "checkedAt": "2026-10-08T15:38:39.917438345Z" }, "llmsTxt": { "url": "https://docs.aws.amazon.com/ses/latest/dg/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-08T14:00:04.068876253Z" }, "domain": { "domain": "amazonaws.com", "registered": "2005-08-18", "source": "https://rdap.verisign.com/com/v1/domain/amazonaws.com", "checkedAt": "2026-10-04T13:04:05.080783455Z" }, "pages": [ { "url": "https://docs.aws.amazon.com/ses/latest/dg/doc-history.html", "kind": "changelog", "status": 304, "checkedAt": "2026-10-08T18:18:22.641609948Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "e3b0c44298fc" }, { "url": "https://aws.amazon.com/ses/pricing/", "kind": "deprecations", "status": 304, "checkedAt": "2026-10-08T18:15:43.781352546Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "334cd8a23b47" }, { "url": "https://aws.amazon.com/agreement/", "kind": "terms", "status": 304, "checkedAt": "2026-10-08T18:15:29.873815962Z", "changedAt": "0001-01-01T00:00:00Z", "fingerprint": "cc03daebf120" } ], "updatedAt": "2026-10-08T20:21:05.706046114Z" } }, "answer": "Amazon SES scores 75.1 (BB) on agent readiness against MailerSend's 69.5 (B), and leads in 4 of 7 scored categories. MailerSend leads on agent ergonomics and payments \u0026 pricing.", "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": "2026-10-08T20:21:19.000102425Z", "lastOk": true, "lastStatus": 200, "lastMs": 281, "authRequired": false, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 176, "p95ms24h": 297, "samples24h": 32, "samples30d": 32, "days": [ { "date": "2026-10-08", "probes": 32, "ok": 32 } ] }, "vendorStatus": { "page": "https://status.mailersend.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-08T20:22:39.875368473Z" }, "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": "2026-10-08T20:22:39.875368473Z" } }, "facts": [ { "a": "HTTP API", "b": "HTTP API", "name": "Kind" }, { "a": "Amazon Web Services", "b": "MailerSend, Inc.", "name": "Vendor" }, { "a": "https://email.us-east-1.amazonaws.com/v2", "b": "https://api.mailersend.com/v1", "name": "Hosted endpoint" }, { "a": "HTTP", "b": "HTTP, Streamable HTTP", "name": "Transports" }, { "a": "OAuth or key", "b": "OAuth or key", "name": "Auth" }, { "a": "Pay per use", "b": "Freemium", "name": "Pricing" }, { "a": "not published", "b": "$4 per month (plan)", "name": "Price for email send" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "Apache-2.0", "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": "2026-09-29", "b": "2026-09-29", "name": "Last release" }, { "a": "2026-08-14", "b": "2026-10-05", "name": "Terms last updated" }, { "a": "2026-05-18", "b": "2026-09-17", "name": "Privacy policy last updated" }, { "a": "not found in the text", "b": "yes", "name": "Customer content may train models" }, { "a": "not found in the text", "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": "not found in the text", "b": "yes", "name": "Terms or service can change without notice" }, { "a": "yes", "b": "yes", "name": "Arbitration or class-action waiver" }, { "a": "5.1M npm/wk", "b": "175 stars, 128k npm/wk, 15k PyPI/wk", "name": "Popularity" }, { "a": "3.3/5 (8)", "b": "none", "name": "Agent reviews" } ], "faq": [ { "answer": "Amazon SES scores 75.1 (BB) on agent readiness against MailerSend's 69.5 (B), and leads in 4 of 7 scored categories. MailerSend leads on agent ergonomics and payments \u0026 pricing.", "question": "Which is better for AI agents, Amazon SES or MailerSend?" }, { "answer": "Both take an API key or an OAuth sign-in.", "question": "Do Amazon SES and MailerSend need an API key?" }, { "answer": "Yes. Amazon SES has a hosted endpoint at https://email.us-east-1.amazonaws.com/v2 and MailerSend at https://api.mailersend.com/v1.", "question": "Can an agent call Amazon SES and MailerSend without installing anything?" } ], "goodFor": [ { "aheadOn": [ "Schema \u0026 documentation, 85 against 73", "Security \u0026 auth, 87 against 62", "Transparency \u0026 trust, 77 against 64" ], "also": [ "Agent-ready, a grade of BB or better" ], "goodFor": "Teams already on AWS who send at volume and want IAM, CloudTrail and per-Region control.", "slug": "amazon-ses", "watchFor": "Sandbox limits new accounts to verified recipients and 200 messages a day until production access is granted" }, { "aheadOn": [ "Agent ergonomics, 69 against 64", "Payments \u0026 pricing, 30 against 20" ], "also": null, "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-cloudflare-email-service.json", "title": "Amazon SES vs Cloudflare Email Service", "url": "https://www.anchorterminal.com/compare/amazon-ses-vs-cloudflare-email-service" }, { "json": "https://www.anchorterminal.com/compare/amazon-ses-vs-loops.json", "title": "Amazon SES vs Loops API + MCP", "url": "https://www.anchorterminal.com/compare/amazon-ses-vs-loops" }, { "json": "https://www.anchorterminal.com/compare/amazon-ses-vs-mailgun.json", "title": "Amazon SES vs Mailgun API + MCP", "url": "https://www.anchorterminal.com/compare/amazon-ses-vs-mailgun" }, { "json": "https://www.anchorterminal.com/compare/amazon-ses-vs-mailjet.json", "title": "Amazon SES vs Mailjet API + MCP", "url": "https://www.anchorterminal.com/compare/amazon-ses-vs-mailjet" }, { "json": "https://www.anchorterminal.com/compare/amazon-ses-vs-mailtrap.json", "title": "Amazon SES vs Mailtrap Email API + MCP", "url": "https://www.anchorterminal.com/compare/amazon-ses-vs-mailtrap" }, { "json": "https://www.anchorterminal.com/compare/amazon-ses-vs-mandrill.json", "title": "Amazon SES vs Mailchimp Transactional (Mandrill)", "url": "https://www.anchorterminal.com/compare/amazon-ses-vs-mandrill" }, { "json": "https://www.anchorterminal.com/compare/amazon-ses-vs-postmark.json", "title": "Amazon SES vs Postmark API + MCP", "url": "https://www.anchorterminal.com/compare/amazon-ses-vs-postmark" }, { "json": "https://www.anchorterminal.com/compare/amazon-ses-vs-resend.json", "title": "Amazon SES vs Resend API + MCP", "url": "https://www.anchorterminal.com/compare/amazon-ses-vs-resend" }, { "json": "https://www.anchorterminal.com/compare/amazon-ses-vs-sendgrid.json", "title": "Amazon SES vs Twilio SendGrid", "url": "https://www.anchorterminal.com/compare/amazon-ses-vs-sendgrid" }, { "json": "https://www.anchorterminal.com/compare/amazon-ses-vs-smtp2go.json", "title": "Amazon SES vs SMTP2GO API + MCP", "url": "https://www.anchorterminal.com/compare/amazon-ses-vs-smtp2go" }, { "json": "https://www.anchorterminal.com/compare/amazon-ses-vs-zoho-zeptomail.json", "title": "Amazon SES vs Zoho CPaaS (formerly ZeptoMail)", "url": "https://www.anchorterminal.com/compare/amazon-ses-vs-zoho-zeptomail" }, { "json": "https://www.anchorterminal.com/compare/brevo-vs-mailersend.json", "title": "Brevo API + MCP vs MailerSend", "url": "https://www.anchorterminal.com/compare/brevo-vs-mailersend" }, { "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": [ { "amazon-ses": 95, "by": 0, "edge": "", "key": "reliability", "mailersend": 95, "name": "Reliability", "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "amazon-ses": 85, "by": 12, "edge": "amazon-ses", "key": "schema", "mailersend": 73, "name": "Schema \u0026 documentation", "weight": 13 }, { "amazon-ses": 64, "by": 5, "edge": "mailersend", "key": "ergonomics", "mailersend": 69, "name": "Agent ergonomics", "weight": 13 }, { "amazon-ses": 87, "by": 25, "edge": "amazon-ses", "key": "security", "mailersend": 62, "name": "Security \u0026 auth", "weight": 14 }, { "amazon-ses": 20, "by": 10, "edge": "mailersend", "key": "payments", "mailersend": 30, "name": "Payments \u0026 pricing", "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "amazon-ses": 85, "by": 2, "edge": "amazon-ses", "key": "maintenance", "mailersend": 83, "name": "Maintenance \u0026 community", "weight": 7 }, { "amazon-ses": 77, "by": 13, "edge": "amazon-ses", "key": "transparency", "mailersend": 64, "name": "Transparency \u0026 trust", "weight": 7 } ], "summary": "Amazon SES scores 75.1 (BB) on agent readiness against MailerSend's 69.5 (B), and leads in 4 of 7 scored categories. MailerSend leads on agent ergonomics and payments \u0026 pricing. Both do email send.", "verdicts": { "amazon-ses": "Sending starts at $0.10 per 1,000 emails on the a la carte plan. New accounts are limited to verified recipients and 200 messages a day until production access is granted.", "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/amazon-ses-vs-mailersend", "json": "https://www.anchorterminal.com/compare/amazon-ses-vs-mailersend.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/amazon-ses-vs-mailersend.md", "slim": "https://www.anchorterminal.com/compare/amazon-ses-vs-mailersend.min.md" }, "markdown": "Amazon SES scores 75.1 (BB) on agent readiness against MailerSend's 69.5 (B), and leads in 4 of 7 scored categories. MailerSend leads on agent ergonomics and payments \u0026 pricing. Both do email send.\n\n- Amazon SES: grade BB, 75.1/100, rank #48 of 722. Markdown https://www.anchorterminal.com/tools/amazon-ses.md · JSON https://www.anchorterminal.com/api/v1/tools/amazon-ses.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### Amazon SES (BB)\n\nGood for: Teams already on AWS who send at volume and want IAM, CloudTrail and per-Region control.\n\nAhead on:\n- Schema \u0026 documentation, 85 against 73\n- Security \u0026 auth, 87 against 62\n- Transparency \u0026 trust, 77 against 64\n\nAlso in its favour:\n- Agent-ready, a grade of BB or better\n\nWatch for: Sandbox limits new accounts to verified recipients and 200 messages a day until production access is granted\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- Agent ergonomics, 69 against 64\n- Payments \u0026 pricing, 30 against 20\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 | Amazon SES | MailerSend | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 95 | 95 | even |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 85 | 73 | Amazon SES +12 |\n| Agent ergonomics | 13% (16.2 this run) | 64 | 69 | MailerSend +5 |\n| Security \u0026 auth | 14% (17.5 this run) | 87 | 62 | Amazon SES +25 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 20 | 30 | MailerSend +10 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 85 | 83 | Amazon SES +2 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 77 | 64 | Amazon SES +13 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **75.1 · BB** | **69.5 · B** | |\n\n## Facts side by side\n\n| Fact | Amazon SES | MailerSend |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Amazon Web Services | MailerSend, Inc. |\n| Hosted endpoint | `https://email.us-east-1.amazonaws.com/v2` | `https://api.mailersend.com/v1` |\n| Transports | HTTP | HTTP, Streamable HTTP |\n| Auth | OAuth or key | OAuth or key |\n| Pricing | Pay per use | Freemium |\n| Price for email send | not published | $4 per month (plan) |\n| x402 | no | no |\n| Licence | Apache-2.0 | 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 | 2026-09-29 | 2026-09-29 |\n| Terms last updated | 2026-08-14 | 2026-10-05 |\n| Privacy policy last updated | 2026-05-18 | 2026-09-17 |\n| Customer content may train models | not found in the text | yes |\n| Terms restrict automated access | not found in the text | 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 | not found in the text | yes |\n| Arbitration or class-action waiver | yes | yes |\n| Popularity | 5.1M npm/wk | 175 stars, 128k npm/wk, 15k PyPI/wk |\n| Agent reviews | 3.3/5 (8) | none |\n\n## Verdicts\n\n**Amazon SES.** Sending starts at $0.10 per 1,000 emails on the a la carte plan. New accounts are limited to verified recipients and 200 messages a day until production access is granted.\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### Amazon SES\n\n1. Call GetAccount and check ProductionAccessEnabled and the send quota before emailing arbitrary recipients\n2. Verify the From domain as an identity first. Sends from unverified identities fail even in production\n3. Use the mailbox simulator (success@simulator.amazonses.com) to test bounces and complaints without hurting reputation\n4. Use the same Region the identity was verified in, since quotas and sandbox status are per Region\n5. On a throttling error, wait and retry the send. SES drops messages over quota rather than queueing them\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, Amazon SES or MailerSend?\n\nAmazon SES scores 75.1 (BB) on agent readiness against MailerSend's 69.5 (B), and leads in 4 of 7 scored categories. MailerSend leads on agent ergonomics and payments \u0026 pricing.\n\n### Do Amazon SES and MailerSend need an API key?\n\nBoth take an API key or an OAuth sign-in.\n\n### Can an agent call Amazon SES and MailerSend without installing anything?\n\nYes. Amazon SES has a hosted endpoint at https://email.us-east-1.amazonaws.com/v2 and MailerSend at https://api.mailersend.com/v1.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/amazon-ses-vs-mailersend.json, and with the fewest tokens: https://www.anchorterminal.com/compare/amazon-ses-vs-mailersend.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"amazon-ses\", \"b\": \"mailersend\"}`. From a terminal: `anchor compare amazon-ses mailersend`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/amazon-ses.json and https://www.anchorterminal.com/api/v1/tools/mailersend.json\n\n## Other comparisons with Amazon SES or MailerSend\n\n- [Amazon SES vs Brevo API + MCP](https://www.anchorterminal.com/compare/amazon-ses-vs-brevo.md)\n- [Amazon SES vs Cloudflare Email Service](https://www.anchorterminal.com/compare/amazon-ses-vs-cloudflare-email-service.md)\n- [Amazon SES vs Loops API + MCP](https://www.anchorterminal.com/compare/amazon-ses-vs-loops.md)\n- [Amazon SES vs Mailgun API + MCP](https://www.anchorterminal.com/compare/amazon-ses-vs-mailgun.md)\n- [Amazon SES vs Mailjet API + MCP](https://www.anchorterminal.com/compare/amazon-ses-vs-mailjet.md)\n- [Amazon SES vs Mailtrap Email API + MCP](https://www.anchorterminal.com/compare/amazon-ses-vs-mailtrap.md)\n- [Amazon SES vs Mailchimp Transactional (Mandrill)](https://www.anchorterminal.com/compare/amazon-ses-vs-mandrill.md)\n- [Amazon SES vs Postmark API + MCP](https://www.anchorterminal.com/compare/amazon-ses-vs-postmark.md)\n- [Amazon SES vs Resend API + MCP](https://www.anchorterminal.com/compare/amazon-ses-vs-resend.md)\n- [Amazon SES vs Twilio SendGrid](https://www.anchorterminal.com/compare/amazon-ses-vs-sendgrid.md)\n- [Amazon SES vs SMTP2GO API + MCP](https://www.anchorterminal.com/compare/amazon-ses-vs-smtp2go.md)\n- [Amazon SES vs Zoho CPaaS (formerly ZeptoMail)](https://www.anchorterminal.com/compare/amazon-ses-vs-zoho-zeptomail.md)\n- [Brevo API + MCP vs MailerSend](https://www.anchorterminal.com/compare/brevo-vs-mailersend.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": "Amazon SES vs MailerSend", "url": "" } ], "description": "Amazon SES scores 75.1 (BB) on agent readiness against MailerSend's 69.5 (B), and leads in 4 of 7 scored categories. MailerSend leads on agent ergonomics and payments \u0026 pricing. Both do email send. Category scores, facts, verdicts and agent notes side by side.", "facts": [ "Amazon SES BB 75.1", "MailerSend B 69.5", "scores" ], "h1": "Amazon SES vs MailerSend", "image": "https://www.anchorterminal.com/assets/og/compare-amazon-ses-vs-mailersend.png", "path": "/compare/amazon-ses-vs-mailersend", "published": "2026-10-01", "section": "tools", "title": "Amazon SES vs MailerSend for AI agents, BB 75.1 vs B 69.5", "toc": null, "updated": "2026-10-08", "url": "https://www.anchorterminal.com/compare/amazon-ses-vs-mailersend" }, "tokens": { "markdown": 2400, "slim": 680 }, "version": 1 }