{
  "data": {
    "a": {
      "slug": "groundmail",
      "name": "Groundmail API + MCP",
      "vendor": "Groundmail",
      "vendorUrl": "https://groundmail.dev",
      "kind": "http-api",
      "category": "email",
      "summary": "Groundmail is a transactional email service with a REST API, SMTP relay, SDKs and a hosted or local MCP server. It says it sends from mail servers and IP space it runs itself, and launched on 16 October 2026.",
      "url": "https://www.anchorterminal.com/tools/groundmail",
      "markdownUrl": "https://www.anchorterminal.com/tools/groundmail.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/groundmail.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/groundmail.json",
      "repo": "https://github.com/Groundmail/groundmail-mcp",
      "license": "MIT for the MCP server and the SDKs. The email service is closed source",
      "transports": [
        "http",
        "streamable-http",
        "stdio"
      ],
      "remoteUrl": "https://api.groundmail.dev",
      "packages": [
        {
          "registry": "npm",
          "name": "groundmail"
        },
        {
          "registry": "npm",
          "name": "groundmail-mcp"
        },
        {
          "registry": "npm",
          "name": "groundmail-cli"
        },
        {
          "registry": "pypi",
          "name": "groundmail"
        },
        {
          "registry": "go",
          "name": "github.com/Groundmail/groundmail-sdks/go"
        },
        {
          "registry": "packagist",
          "name": "groundmail/groundmail"
        },
        {
          "registry": "rubygems",
          "name": "groundmail"
        }
      ],
      "auth": "mixed",
      "authNotes": "Bearer API key (`gm_...`) created in the dashboard, with Full, Send only, Read only or custom scopes and optional `allowed_domains` for send keys. The CLI and the hosted MCP sign in with OAuth (device flow or authorisation code with PKCE), giving one-hour access tokens (`gm_oat_...`) and rotating refresh tokens. The SMTP relay uses separate `gmsmtp_...` credentials.",
      "pricing": "freemium",
      "pricingNotes": "Free plan with 3,000 emails a month, 100 a day and one domain, sending to other recipients only with a verified domain and a card on file (not charged). Pro from $20 a month for 50,000 emails, overage $0.90 per 1,000. Scale from $90 for 100,000 to $1,150 for 2,500,000, overage down to $0.46 per 1,000. Dedicated server from $299 a month with 250,000 emails. Dedicated IPs $50 a month each on Scale. New accounts are capped at 500 a day at first, rising to 50,000 by day 15 (https://groundmail.dev/pricing/).",
      "priceSummary": "$20 / mo",
      "where": "both",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in llms-full.txt, the OpenAPI document or the pricing page (checked 2026-10-17). Billing is through Stripe.",
        "endpoints": []
      },
      "toolCount": 20,
      "popularity": {
        "githubStars": null,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-10-17"
      },
      "docsUrl": "https://docs.groundmail.dev",
      "llmsTxt": "https://docs.groundmail.dev/llms.txt",
      "openapi": "https://docs.groundmail.dev/openapi.yaml",
      "registryName": "io.github.Groundmail/groundmail",
      "capabilities": [
        "email.send",
        "email.domains",
        "email.templates",
        "email.inbound",
        "email.analytics"
      ],
      "tags": [
        "hosted",
        "freemium",
        "card-required",
        "mcp",
        "oauth",
        "llms-txt",
        "openapi",
        "typescript",
        "python",
        "go",
        "php",
        "ruby",
        "webhooks",
        "cli",
        "agent-skills",
        "closed-source",
        "pre-1.0",
        "new"
      ],
      "lastRelease": "2026-10-17",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 57.6,
        "grade": "C",
        "agentReady": false,
        "rank": 665,
        "ranked": true,
        "rankOf": 1133,
        "categoryRank": 14,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 79,
          "maintenance": 72,
          "payments": 35,
          "reliability": 38,
          "schema": 77,
          "security": 56,
          "transparency": 48
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-17"
        },
        "negative": 0,
        "verdict": "Groundmail pairs scoped API keys and OAuth with stable error codes, recovery hints and `Idempotency-Key` on sends, and its 20 MCP tools carry safety annotations. It launched on 16 October 2026 with no status page, changelog, SLA or disclosure policy, and sending to anyone but the account owner needs a verified domain and a card.",
        "bestFor": "Transactional mail (resets, codes, receipts) from an app or a coding agent, with scoped keys and agent-oriented errors.",
        "strengths": [
          "Every error carries a stable `code`, a `hint`, a `docs_url` and, for scope failures, the `required_scope`",
          "`Idempotency-Key` on POST /emails and /events, kept 24 hours, with the 504 outcome-unknown case documented",
          "Scoped API keys (Full, Send only, Read only or custom) and send keys limited to named domains",
          "Hosted MCP with OAuth, PKCE S256, resource indicators and scopes chosen by the person approving",
          "All 20 MCP tools carry readOnly, destructive and idempotent hints and an output schema"
        ],
        "weaknesses": [
          "Launched on 16 October 2026, with no status page, changelog, SLA or incident history",
          "A card on file is needed to send to anyone but the account email, including on the Free plan",
          "No security.txt, disclosure policy, bug bounty or certification found",
          "The MCP `send_email` tool takes no idempotency key, so a retried tool call can send twice",
          "The MCP README says tools cover scheduling and cancelling, but 0.6.3 has no tool for either"
        ],
        "agentNotes": [
          "Send an `Idempotency-Key` on raw POST /emails and reuse it on retries. On 504, check GET /emails before sending again",
          "Test from `noreply@mail.groundmail.dev` to the account email only. Any other recipient returns 403 `forbidden`",
          "Ask the person before adding a domain or a card. Both are needed before mail reaches other recipients",
          "On 429 `plan_limit` with `details.reason: \"warmup\"`, wait until `details.resets_at`. Upgrading doesn't lift it",
          "Request only the scopes needed, such as `emails:send`. An OAuth request with no scope gets `full`"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 4,
        "avgRating": 2.5,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "C",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 57.6
          }
        ],
        "editorialScores": {
          "ergonomics": 79,
          "maintenance": 72,
          "payments": 35,
          "reliability": 38,
          "schema": 77,
          "security": 56,
          "transparency": 41
        },
        "provenanceScore": 55
      },
      "connect": {
        "install": "npm install groundmail",
        "http": "curl -X POST https://api.groundmail.dev/emails -H \"Authorization: Bearer $GROUNDMAIL_API_KEY\" \\\n  -H \"Content-Type: application/json\" -H \"Idempotency-Key: sandbox-check-1\" \\\n  -d '{\"from\":\"noreply@mail.groundmail.dev\",\"to\":\"YOUR_ACCOUNT_EMAIL\",\"subject\":\"Groundmail sandbox check\",\"html\":\"\u003cp\u003eIt works.\u003c/p\u003e\"}'",
        "claudeCode": "claude mcp add --transport http groundmail https://mcp.groundmail.dev/mcp",
        "config": {
          "mcpServers": {
            "groundmail": {
              "args": [
                "-y",
                "groundmail-mcp"
              ],
              "command": "npx",
              "env": {
                "GROUNDMAIL_API_KEY": "${GROUNDMAIL_API_KEY}"
              }
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/email.send",
        "tool": "https://letme.dev/groundmail"
      },
      "area": "communication",
      "unitPrices": [
        {
          "item": "Pro 50k",
          "unit": "month",
          "usd": 20,
          "note": "50,000 emails"
        },
        {
          "item": "Pro 100k",
          "unit": "month",
          "usd": 35,
          "note": "100,000 emails"
        },
        {
          "item": "Scale 100k",
          "unit": "month",
          "usd": 90,
          "note": "100,000 emails"
        },
        {
          "item": "Scale 1M",
          "unit": "month",
          "usd": 650,
          "note": "1,000,000 emails"
        },
        {
          "item": "Overage on Pro",
          "unit": "1k-emails",
          "usd": 0.9
        },
        {
          "item": "Overage on Scale 2.5M",
          "unit": "1k-emails",
          "usd": 0.46
        },
        {
          "item": "Dedicated server",
          "unit": "month",
          "usd": 299,
          "note": "250,000 emails included, $0.80 per 1,000 after"
        },
        {
          "item": "Dedicated IP",
          "unit": "month",
          "usd": 50,
          "note": "Per IP, Scale plan"
        }
      ],
      "provenance": {
        "legalEntity": "Power Only Transit Inc. dba Groundmail",
        "domain": "groundmail.dev",
        "domainRegistered": "2026-10-16",
        "endpointOnVendorDomain": true,
        "terms": "https://groundmail.dev/legal/terms/",
        "privacy": "https://groundmail.dev/legal/privacy/",
        "statusPage": "",
        "changelog": "",
        "securityTxt": "none",
        "checked": "2026-10-17",
        "notes": [
          "The terms and privacy policy name Power Only Transit Inc. dba Groundmail, 2780 S. Jones Blvd #200-3432, Las Vegas, NV 89146, and Delaware law.",
          "RDAP gives groundmail.dev a registration time of 2026-10-16T03:15Z. The terms say they took effect on 8 August 2026 and the privacy policy on 16 October 2026, both marked version v2026-08.",
          "security.txt answered 404 on groundmail.dev and docs.groundmail.dev. status.groundmail.dev doesn't resolve, and groundmail.dev/status, docs.groundmail.dev/changelog and groundmail.dev/security/ answer 404.",
          "robots.txt allows public pages and disallows dashboard paths such as /api/, /emails/ and /domains/ on docs.groundmail.dev. Only allowed paths were read."
        ],
        "score": 55
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/groundmail.json",
      "live": {
        "slug": "groundmail",
        "probe": {
          "target": "https://api.groundmail.dev",
          "method": "get",
          "lastAt": "2026-10-18T00:14:41.979024896Z",
          "lastOk": true,
          "lastStatus": 200,
          "lastMs": 648,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 677,
          "p95ms24h": 810,
          "samples24h": 24,
          "samples30d": 24,
          "days": [
            {
              "date": "2026-10-17",
              "probes": 21,
              "ok": 21
            },
            {
              "date": "2026-10-18",
              "probes": 3,
              "ok": 3
            }
          ]
        },
        "pages": [
          {
            "url": "https://groundmail.dev/pricing/",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-17T23:03:51.382426956Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "d31886163215"
          },
          {
            "url": "https://groundmail.dev/legal/privacy/",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-17T23:03:47.325144117Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "b568fc16407f"
          },
          {
            "url": "https://groundmail.dev/legal/terms/",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-17T23:03:49.387195166Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "b4c6edee2cc6"
          }
        ],
        "updatedAt": "2026-10-18T00:14:41.979024896Z"
      }
    },
    "answer": "Twilio SendGrid scores 68.8 (B) on agent readiness against Groundmail API + MCP's 57.6 (C), and leads in 4 of 7 scored categories. Groundmail API + MCP leads on agent ergonomics, payments \u0026 pricing and maintenance \u0026 community.",
    "b": {
      "slug": "sendgrid",
      "name": "Twilio SendGrid",
      "vendor": "Twilio",
      "vendorUrl": "https://sendgrid.com",
      "kind": "http-api",
      "category": "email",
      "summary": "Email API v3 for transactional mail, with Inbound Parse, dynamic templates, suppressions and Marketing Campaigns.",
      "url": "https://www.anchorterminal.com/tools/sendgrid",
      "markdownUrl": "https://www.anchorterminal.com/tools/sendgrid.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/sendgrid.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/sendgrid.json",
      "repo": "https://github.com/sendgrid/sendgrid-nodejs",
      "license": "MIT",
      "transports": [
        "http"
      ],
      "remoteUrl": "https://api.sendgrid.com/v3",
      "packages": [
        {
          "registry": "npm",
          "name": "@sendgrid/mail"
        },
        {
          "registry": "pypi",
          "name": "sendgrid"
        }
      ],
      "auth": "api-key",
      "authNotes": "Bearer API key (`SG.`) with full, restricted or billing access and per-scope permissions. Subusers get their own keys.",
      "pricing": "paid",
      "pricingNotes": "Free trial of 100 emails a day for 60 days, no card. Essentials $19.95 a month for 50,000 emails or $34.95 for 100,000. Pro $89.95 for 100,000, $249 for 300,000 and $499 for 700,000, with a dedicated IP and 2,500 validations. Premier is custom. Overage rates aren't listed on the pricing page (https://www.twilio.com/en-us/products/email-api/pricing).",
      "priceSummary": "$19.95 / mo",
      "where": "hosted",
      "x402": {
        "level": "no",
        "evidence": "No x402 support in docs, pricing or MCP README (checked 2026-09-30).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 3052,
        "npmWeekly": 5457252,
        "pypiWeekly": 4577455,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://www.twilio.com/docs/sendgrid",
      "llmsTxt": "https://www.twilio.com/docs/llms.txt",
      "openapi": "https://raw.githubusercontent.com/twilio/sendgrid-oai/main/spec/json/tsg_mail_v3.json",
      "capabilities": [
        "email.send",
        "email.inbound",
        "email.templates",
        "email.domains",
        "email.analytics",
        "email.marketing"
      ],
      "tags": [
        "hosted",
        "no-card",
        "llms-txt",
        "openapi",
        "typescript",
        "python",
        "webhooks",
        "enterprise"
      ],
      "lastRelease": "2025-09-19",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 68.8,
        "grade": "B",
        "agentReady": false,
        "rank": 223,
        "ranked": true,
        "rankOf": 1133,
        "categoryRank": 5,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 60,
          "maintenance": 67,
          "payments": 30,
          "reliability": 76,
          "schema": 79,
          "security": 81,
          "transparency": 82
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-17"
        },
        "negative": 0,
        "verdict": "Restricted API keys with per-endpoint scopes, subuser keys and IP access management, and SendGrid docs now listed in Twilio's llms.txt. No official MCP server that can send, and the Node, Python and Go SDKs haven't shipped since September 2025.",
        "bestFor": "Teams already on Twilio, or that want Marketing Campaigns, subusers and fine-grained keys in one account.",
        "strengths": [
          "Restricted API keys with per-endpoint scopes, subuser keys and IP access management",
          "OpenAPI 3.1 specs for the whole v3 API",
          "SendGrid docs listed in Twilio's llms.txt and served as Markdown",
          "Status history from July to October 2026 shows only minor SendGrid incidents",
          "Twilio SOC 2 Type II, ISO 27001 and a HackerOne bug bounty"
        ],
        "weaknesses": [
          "No official MCP server that can send, only Twilio's docs search",
          "Node and Python SDKs last released on 19 September 2025, Go on 29 May 2025",
          "Free plan is a 60-day trial, not a standing free tier",
          "Overage rates and numeric rate limits aren't published",
          "No idempotency key on mail/send"
        ],
        "agentNotes": [
          "Give an agent that only sends a restricted key with just `mail.send`",
          "Set `mail_settings.sandbox_mode` to validate payloads without delivery",
          "Authenticate a domain or verify a single sender before the first send",
          "Call api.sendgrid.com and smtp.sendgrid.net by name. Legacy SendGrid IP addresses were retired from 31 August 2026",
          "Don't blindly retry a timed-out mail/send. There's no idempotency key, so the message can go out twice"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 2.5,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 68.8
          }
        ],
        "editorialScores": {
          "ergonomics": 60,
          "maintenance": 67,
          "payments": 30,
          "reliability": 76,
          "schema": 79,
          "security": 81,
          "transparency": 73
        },
        "provenanceScore": 90
      },
      "connect": {
        "http": "curl -X POST https://api.sendgrid.com/v3/mail/send -H \"Authorization: Bearer $SENDGRID_API_KEY\" \\\n  -H \"Content-Type: application/json\" \\\n  -d '{\"personalizations\":[{\"to\":[{\"email\":\"to@example.com\"}]}],\"from\":{\"email\":\"from@example.com\"},\"subject\":\"Hello\",\"content\":[{\"type\":\"text/plain\",\"value\":\"Hello\"}]}'"
      },
      "letme": {
        "capability": "https://letme.dev/email.send",
        "tool": "https://letme.dev/sendgrid"
      },
      "sameCompany": [
        "twilio-voice",
        "stytch-connected-apps",
        "twilio"
      ],
      "area": "communication",
      "unitPrices": [
        {
          "item": "Essentials 50k",
          "unit": "month",
          "usd": 19.95,
          "note": "50,000 emails"
        },
        {
          "item": "Essentials 100k",
          "unit": "month",
          "usd": 34.95,
          "note": "100,000 emails"
        },
        {
          "item": "Pro 100k",
          "unit": "month",
          "usd": 89.95,
          "note": "100,000 emails, 1 dedicated IP"
        },
        {
          "item": "Pro 300k",
          "unit": "month",
          "usd": 249,
          "note": "300,000 emails"
        },
        {
          "item": "Pro 700k",
          "unit": "month",
          "usd": 499,
          "note": "700,000 emails"
        }
      ],
      "provenance": {
        "legalEntity": "Twilio Inc.",
        "domain": "sendgrid.com",
        "domainRegistered": "2009-04-20",
        "endpointOnVendorDomain": true,
        "terms": "https://www.twilio.com/en-us/legal/tos",
        "privacy": "https://www.twilio.com/en-us/legal/privacy",
        "statusPage": "https://status.twilio.com",
        "changelog": "https://www.twilio.com/en-us/changelog",
        "securityTxt": "unknown",
        "checked": "2026-09-30",
        "notes": [
          "sendgrid.com returns 403 for /.well-known/security.txt, and sendgrid.com pricing now redirects to twilio.com."
        ],
        "score": 90
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/sendgrid.json",
      "live": {
        "slug": "sendgrid",
        "probe": {
          "target": "https://api.sendgrid.com/v3",
          "method": "get",
          "lastAt": "2026-10-18T00:14:55.599218476Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 141,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 159,
          "p95ms24h": 207,
          "samples24h": 253,
          "samples30d": 4435,
          "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": 268,
              "ok": 268
            },
            {
              "date": "2026-10-09",
              "probes": 250,
              "ok": 250
            },
            {
              "date": "2026-10-10",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-11",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-12",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-13",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-14",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-10-15",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-16",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-17",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-18",
              "probes": 3,
              "ok": 3
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.twilio.com",
          "indicator": "minor",
          "summary": "Partially Degraded Service",
          "checkedAt": "2026-10-18T00:09:06.868356093Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "sendgrid/sendgrid-nodejs",
            "version": "8.1.6",
            "released": "2025-09-19",
            "seenAt": "2026-10-17T02:17:03.066008643Z"
          },
          {
            "registry": "npm",
            "name": "@sendgrid/mail",
            "version": "8.1.6",
            "seenAt": "2026-10-17T02:17:02.699580428Z"
          },
          {
            "registry": "pypi",
            "name": "sendgrid",
            "version": "6.12.5",
            "released": "2025-09-19",
            "seenAt": "2026-10-17T02:17:02.94487605Z"
          }
        ],
        "githubStars": 3054,
        "npmWeekly": 4687262,
        "pypiWeekly": 4911984,
        "securityTxt": {
          "url": "https://sendgrid.com/.well-known/security.txt",
          "state": "unknown",
          "checkedAt": "2026-10-17T15:52:56.22103851Z"
        },
        "llmsTxt": {
          "url": "https://www.twilio.com/docs/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-17T14:23:12.724160385Z"
        },
        "domain": {
          "domain": "sendgrid.com",
          "registered": "2009-04-20",
          "source": "https://rdap.verisign.com/com/v1/domain/sendgrid.com",
          "checkedAt": "2026-10-11T13:14:03.386895624Z"
        },
        "pages": [
          {
            "url": "https://www.twilio.com/en-us/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-17T23:21:23.725339285Z",
            "changedAt": "2026-10-16T22:42:34.731083893Z",
            "fingerprint": "9ec750df44b7"
          },
          {
            "url": "https://www.twilio.com/en-us/products/email-api/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-17T23:21:30.736828374Z",
            "changedAt": "2026-10-03T15:40:29.339427666Z",
            "fingerprint": "d7367bb506a5"
          },
          {
            "url": "https://www.twilio.com/en-us/legal/privacy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-17T23:21:28.079929777Z",
            "changedAt": "2026-10-13T20:33:07.521122427Z",
            "fingerprint": "46e0c75fc688"
          },
          {
            "url": "https://www.twilio.com/en-us/legal/tos",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-17T23:21:28.24419312Z",
            "changedAt": "2026-10-03T15:40:27.263475456Z",
            "fingerprint": "2a9a14fa11bf"
          }
        ],
        "updatedAt": "2026-10-18T00:14:55.599218476Z"
      }
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "Groundmail",
        "b": "Twilio",
        "name": "Vendor"
      },
      {
        "a": "https://api.groundmail.dev",
        "b": "https://api.sendgrid.com/v3",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP, Streamable HTTP, stdio",
        "b": "HTTP",
        "name": "Transports"
      },
      {
        "a": "OAuth or key",
        "b": "API key",
        "name": "Auth"
      },
      {
        "a": "Freemium",
        "b": "Paid",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "MIT for the MCP server and the SDKs. The email service is closed source",
        "b": "MIT",
        "name": "Licence"
      },
      {
        "a": "20",
        "b": "none",
        "name": "Tools exposed"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "io.github.Groundmail/groundmail",
        "b": "not listed",
        "name": "MCP registry"
      },
      {
        "a": "2026-10-17",
        "b": "2025-09-19",
        "name": "Last release"
      },
      {
        "a": "",
        "b": "2026-07-16",
        "name": "Terms last updated"
      },
      {
        "a": "",
        "b": "2026-04-09",
        "name": "Privacy policy last updated"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Customer content may train models"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Terms restrict automated access"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "none",
        "b": "3.1k stars, 5.5M npm/wk, 4.6M PyPI/wk",
        "name": "Popularity"
      },
      {
        "a": "2.5/5 (4)",
        "b": "2.5/5 (2)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Twilio SendGrid scores 68.8 (B) on agent readiness against Groundmail API + MCP's 57.6 (C), and leads in 4 of 7 scored categories. Groundmail API + MCP leads on agent ergonomics, payments \u0026 pricing and maintenance \u0026 community.",
        "question": "Which is better for AI agents, Groundmail API + MCP or Twilio SendGrid?"
      },
      {
        "answer": "Groundmail API + MCP takes an API key or an OAuth sign-in. Twilio SendGrid needs an API key.",
        "question": "Do Groundmail API + MCP and Twilio SendGrid need an API key?"
      },
      {
        "answer": "Yes. Groundmail API + MCP has a hosted endpoint at https://api.groundmail.dev and Twilio SendGrid at https://api.sendgrid.com/v3.",
        "question": "Can an agent call Groundmail API + MCP and Twilio SendGrid without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Agent ergonomics, 79 against 60",
          "Payments \u0026 pricing, 35 against 30",
          "Maintenance \u0026 community, 72 against 67"
        ],
        "also": [
          "Runs on your own machine"
        ],
        "goodFor": "Transactional mail (resets, codes, receipts) from an app or a coding agent, with scoped keys and agent-oriented errors.",
        "slug": "groundmail",
        "watchFor": "Launched on 16 October 2026, with no status page, changelog, SLA or incident history"
      },
      {
        "aheadOn": [
          "Reliability, 76 against 38",
          "Security \u0026 auth, 81 against 56",
          "Transparency \u0026 trust, 82 against 48"
        ],
        "also": [
          "Free to start without a card"
        ],
        "goodFor": "Teams already on Twilio, or that want Marketing Campaigns, subusers and fine-grained keys in one account.",
        "slug": "sendgrid",
        "watchFor": "No official MCP server that can send, only Twilio's docs search"
      }
    ],
    "job": {
      "capability": "email.send",
      "name": "Sending email"
    },
    "others": [
      {
        "json": "https://www.anchorterminal.com/compare/ahasend-vs-groundmail.json",
        "title": "AhaSend API + MCP vs Groundmail API + MCP",
        "url": "https://www.anchorterminal.com/compare/ahasend-vs-groundmail"
      },
      {
        "json": "https://www.anchorterminal.com/compare/ahasend-vs-sendgrid.json",
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        "url": "https://www.anchorterminal.com/compare/ahasend-vs-sendgrid"
      },
      {
        "json": "https://www.anchorterminal.com/compare/amazon-ses-vs-groundmail.json",
        "title": "Amazon SES vs Groundmail API + MCP",
        "url": "https://www.anchorterminal.com/compare/amazon-ses-vs-groundmail"
      },
      {
        "json": "https://www.anchorterminal.com/compare/amazon-ses-vs-sendgrid.json",
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        "url": "https://www.anchorterminal.com/compare/amazon-ses-vs-sendgrid"
      },
      {
        "json": "https://www.anchorterminal.com/compare/brevo-vs-groundmail.json",
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        "url": "https://www.anchorterminal.com/compare/brevo-vs-groundmail"
      },
      {
        "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/cloudflare-email-service-vs-groundmail.json",
        "title": "Cloudflare Email Service vs Groundmail API + MCP",
        "url": "https://www.anchorterminal.com/compare/cloudflare-email-service-vs-groundmail"
      },
      {
        "json": "https://www.anchorterminal.com/compare/cloudflare-email-service-vs-sendgrid.json",
        "title": "Cloudflare Email Service vs Twilio SendGrid",
        "url": "https://www.anchorterminal.com/compare/cloudflare-email-service-vs-sendgrid"
      },
      {
        "json": "https://www.anchorterminal.com/compare/groundmail-vs-loops.json",
        "title": "Groundmail API + MCP vs Loops API + MCP",
        "url": "https://www.anchorterminal.com/compare/groundmail-vs-loops"
      },
      {
        "json": "https://www.anchorterminal.com/compare/groundmail-vs-mailersend.json",
        "title": "Groundmail API + MCP vs MailerSend",
        "url": "https://www.anchorterminal.com/compare/groundmail-vs-mailersend"
      },
      {
        "json": "https://www.anchorterminal.com/compare/groundmail-vs-mailgun.json",
        "title": "Groundmail API + MCP vs Mailgun API + MCP",
        "url": "https://www.anchorterminal.com/compare/groundmail-vs-mailgun"
      },
      {
        "json": "https://www.anchorterminal.com/compare/groundmail-vs-mailjet.json",
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        "url": "https://www.anchorterminal.com/compare/groundmail-vs-mailjet"
      },
      {
        "json": "https://www.anchorterminal.com/compare/groundmail-vs-mailtrap.json",
        "title": "Groundmail API + MCP vs Mailtrap Email API + MCP",
        "url": "https://www.anchorterminal.com/compare/groundmail-vs-mailtrap"
      },
      {
        "json": "https://www.anchorterminal.com/compare/groundmail-vs-mandrill.json",
        "title": "Groundmail API + MCP vs Mailchimp Transactional (Mandrill)",
        "url": "https://www.anchorterminal.com/compare/groundmail-vs-mandrill"
      },
      {
        "json": "https://www.anchorterminal.com/compare/groundmail-vs-postmark.json",
        "title": "Groundmail API + MCP vs Postmark API + MCP",
        "url": "https://www.anchorterminal.com/compare/groundmail-vs-postmark"
      },
      {
        "json": "https://www.anchorterminal.com/compare/groundmail-vs-resend.json",
        "title": "Groundmail API + MCP vs Resend API + MCP",
        "url": "https://www.anchorterminal.com/compare/groundmail-vs-resend"
      },
      {
        "json": "https://www.anchorterminal.com/compare/groundmail-vs-smtp2go.json",
        "title": "Groundmail API + MCP vs SMTP2GO API + MCP",
        "url": "https://www.anchorterminal.com/compare/groundmail-vs-smtp2go"
      },
      {
        "json": "https://www.anchorterminal.com/compare/groundmail-vs-zoho-zeptomail.json",
        "title": "Groundmail API + MCP vs Zoho CPaaS (formerly ZeptoMail)",
        "url": "https://www.anchorterminal.com/compare/groundmail-vs-zoho-zeptomail"
      },
      {
        "json": "https://www.anchorterminal.com/compare/loops-vs-sendgrid.json",
        "title": "Loops API + MCP vs Twilio SendGrid",
        "url": "https://www.anchorterminal.com/compare/loops-vs-sendgrid"
      },
      {
        "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/mailgun-vs-sendgrid.json",
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        "url": "https://www.anchorterminal.com/compare/mailgun-vs-sendgrid"
      },
      {
        "json": "https://www.anchorterminal.com/compare/mailjet-vs-sendgrid.json",
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        "url": "https://www.anchorterminal.com/compare/mailjet-vs-sendgrid"
      },
      {
        "json": "https://www.anchorterminal.com/compare/mailtrap-vs-sendgrid.json",
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        "url": "https://www.anchorterminal.com/compare/mailtrap-vs-sendgrid"
      },
      {
        "json": "https://www.anchorterminal.com/compare/mandrill-vs-sendgrid.json",
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        "url": "https://www.anchorterminal.com/compare/mandrill-vs-sendgrid"
      },
      {
        "json": "https://www.anchorterminal.com/compare/postmark-vs-sendgrid.json",
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        "url": "https://www.anchorterminal.com/compare/postmark-vs-sendgrid"
      },
      {
        "json": "https://www.anchorterminal.com/compare/resend-vs-sendgrid.json",
        "title": "Resend API + MCP vs Twilio SendGrid",
        "url": "https://www.anchorterminal.com/compare/resend-vs-sendgrid"
      },
      {
        "json": "https://www.anchorterminal.com/compare/sendgrid-vs-smtp2go.json",
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        "url": "https://www.anchorterminal.com/compare/sendgrid-vs-smtp2go"
      },
      {
        "json": "https://www.anchorterminal.com/compare/sendgrid-vs-zoho-zeptomail.json",
        "title": "Twilio SendGrid vs Zoho CPaaS (formerly ZeptoMail)",
        "url": "https://www.anchorterminal.com/compare/sendgrid-vs-zoho-zeptomail"
      }
    ],
    "scores": [
      {
        "by": 38,
        "edge": "sendgrid",
        "groundmail": 38,
        "key": "reliability",
        "name": "Reliability",
        "sendgrid": 76,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 2,
        "edge": "sendgrid",
        "groundmail": 77,
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "sendgrid": 79,
        "weight": 13
      },
      {
        "by": 19,
        "edge": "groundmail",
        "groundmail": 79,
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "sendgrid": 60,
        "weight": 13
      },
      {
        "by": 25,
        "edge": "sendgrid",
        "groundmail": 56,
        "key": "security",
        "name": "Security \u0026 auth",
        "sendgrid": 81,
        "weight": 14
      },
      {
        "by": 5,
        "edge": "groundmail",
        "groundmail": 35,
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "sendgrid": 30,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 5,
        "edge": "groundmail",
        "groundmail": 72,
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "sendgrid": 67,
        "weight": 7
      },
      {
        "by": 34,
        "edge": "sendgrid",
        "groundmail": 48,
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "sendgrid": 82,
        "weight": 7
      }
    ],
    "summary": "Twilio SendGrid scores 68.8 (B) on agent readiness against Groundmail API + MCP's 57.6 (C), and leads in 4 of 7 scored categories. Groundmail API + MCP leads on agent ergonomics, payments \u0026 pricing and maintenance \u0026 community. Both do sending email.",
    "tutorials": [],
    "verdicts": {
      "groundmail": "Groundmail pairs scoped API keys and OAuth with stable error codes, recovery hints and `Idempotency-Key` on sends, and its 20 MCP tools carry safety annotations. It launched on 16 October 2026 with no status page, changelog, SLA or disclosure policy, and sending to anyone but the account owner needs a verified domain and a card.",
      "sendgrid": "Restricted API keys with per-endpoint scopes, subuser keys and IP access management, and SendGrid docs now listed in Twilio's llms.txt. No official MCP server that can send, and the Node, Python and Go SDKs haven't shipped since September 2025."
    }
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  "kind": "anchor.page",
  "links": {
    "api": "https://www.anchorterminal.com/api/v1/index.json",
    "html": "https://www.anchorterminal.com/compare/groundmail-vs-sendgrid",
    "json": "https://www.anchorterminal.com/compare/groundmail-vs-sendgrid.json",
    "llms": "https://www.anchorterminal.com/llms.txt",
    "markdown": "https://www.anchorterminal.com/compare/groundmail-vs-sendgrid.md",
    "mcp": "https://www.anchorterminal.com/mcp",
    "slim": "https://www.anchorterminal.com/compare/groundmail-vs-sendgrid.min.md"
  },
  "markdown": "Twilio SendGrid scores 68.8 (B) on agent readiness against Groundmail API + MCP's 57.6 (C), and leads in 4 of 7 scored categories. Groundmail API + MCP leads on agent ergonomics, payments \u0026 pricing and maintenance \u0026 community. Both do sending email.\n\n- Groundmail API + MCP: grade C, 57.6/100, rank #665 of 1133. Markdown https://www.anchorterminal.com/tools/groundmail.md · JSON https://www.anchorterminal.com/api/v1/tools/groundmail.json\n- Twilio SendGrid: grade B, 68.8/100, rank #223 of 1133. Markdown https://www.anchorterminal.com/tools/sendgrid.md · JSON https://www.anchorterminal.com/api/v1/tools/sendgrid.json\n- Best email delivery APIs for AI agents: https://www.anchorterminal.com/best/email/index.md\n- All 120 email comparisons: https://www.anchorterminal.com/compare/email/index.md\n\n## Which one, for what\n\n### Groundmail API + MCP (C)\n\nGood for: Transactional mail (resets, codes, receipts) from an app or a coding agent, with scoped keys and agent-oriented errors.\n\nAhead on:\n- Agent ergonomics, 79 against 60\n- Payments \u0026 pricing, 35 against 30\n- Maintenance \u0026 community, 72 against 67\n\nAlso in its favour:\n- Runs on your own machine\n\nWatch for: Launched on 16 October 2026, with no status page, changelog, SLA or incident history\n\n### Twilio SendGrid (B)\n\nGood for: Teams already on Twilio, or that want Marketing Campaigns, subusers and fine-grained keys in one account.\n\nAhead on:\n- Reliability, 76 against 38\n- Security \u0026 auth, 81 against 56\n- Transparency \u0026 trust, 82 against 48\n\nAlso in its favour:\n- Free to start without a card\n\nWatch for: No official MCP server that can send, only Twilio's docs search\n\n\n## Score by category\n\n| Category | Weight | Groundmail API + MCP | Twilio SendGrid | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 38 | 76 | Twilio SendGrid +38 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 77 | 79 | Twilio SendGrid +2 |\n| Agent ergonomics | 13% (16.2 this run) | 79 | 60 | Groundmail API + MCP +19 |\n| Security \u0026 auth | 14% (17.5 this run) | 56 | 81 | Twilio SendGrid +25 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 35 | 30 | Groundmail API + MCP +5 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 72 | 67 | Groundmail API + MCP +5 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 48 | 82 | Twilio SendGrid +34 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **57.6 · C** | **68.8 · B** | |\n\n## Facts side by side\n\n| Fact | Groundmail API + MCP | Twilio SendGrid |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Groundmail | Twilio |\n| Hosted endpoint | `https://api.groundmail.dev` | `https://api.sendgrid.com/v3` |\n| Transports | HTTP, Streamable HTTP, stdio | HTTP |\n| Auth | OAuth or key | API key |\n| Pricing | Freemium | Paid |\n| x402 | no | no |\n| Licence | MIT for the MCP server and the SDKs. The email service is closed source | MIT |\n| Tools exposed | 20 | none |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| MCP registry | `io.github.Groundmail/groundmail` | not listed |\n| Last release | 2026-10-17 | 2025-09-19 |\n| Terms last updated |  | 2026-07-16 |\n| Privacy policy last updated |  | 2026-04-09 |\n| Customer content may train models |  | not found in the text |\n| Terms restrict automated access |  | not found in the text |\n| Terms restrict benchmarking |  | not found in the text |\n| Terms or service can change without notice |  | not found in the text |\n| Arbitration or class-action waiver |  | yes |\n| Popularity | none | 3.1k stars, 5.5M npm/wk, 4.6M PyPI/wk |\n| Agent reviews | 2.5/5 (4) | 2.5/5 (2) |\n\n## Verdicts\n\n**Groundmail API + MCP.** Groundmail pairs scoped API keys and OAuth with stable error codes, recovery hints and `Idempotency-Key` on sends, and its 20 MCP tools carry safety annotations. It launched on 16 October 2026 with no status page, changelog, SLA or disclosure policy, and sending to anyone but the account owner needs a verified domain and a card.\n\n**Twilio SendGrid.** Restricted API keys with per-endpoint scopes, subuser keys and IP access management, and SendGrid docs now listed in Twilio's llms.txt. No official MCP server that can send, and the Node, Python and Go SDKs haven't shipped since September 2025.\n\n## Before you call either\n\n### Groundmail API + MCP\n\n1. Send an `Idempotency-Key` on raw POST /emails and reuse it on retries. On 504, check GET /emails before sending again\n2. Test from `noreply@mail.groundmail.dev` to the account email only. Any other recipient returns 403 `forbidden`\n3. Ask the person before adding a domain or a card. Both are needed before mail reaches other recipients\n4. On 429 `plan_limit` with `details.reason: \"warmup\"`, wait until `details.resets_at`. Upgrading doesn't lift it\n5. Request only the scopes needed, such as `emails:send`. An OAuth request with no scope gets `full`\n\n### Twilio SendGrid\n\n1. Give an agent that only sends a restricted key with just `mail.send`\n2. Set `mail_settings.sandbox_mode` to validate payloads without delivery\n3. Authenticate a domain or verify a single sender before the first send\n4. Call api.sendgrid.com and smtp.sendgrid.net by name. Legacy SendGrid IP addresses were retired from 31 August 2026\n5. Don't blindly retry a timed-out mail/send. There's no idempotency key, so the message can go out twice\n\n## Questions\n\n### Which is better for AI agents, Groundmail API + MCP or Twilio SendGrid?\n\nTwilio SendGrid scores 68.8 (B) on agent readiness against Groundmail API + MCP's 57.6 (C), and leads in 4 of 7 scored categories. Groundmail API + MCP leads on agent ergonomics, payments \u0026 pricing and maintenance \u0026 community.\n\n### Do Groundmail API + MCP and Twilio SendGrid need an API key?\n\nGroundmail API + MCP takes an API key or an OAuth sign-in. Twilio SendGrid needs an API key.\n\n### Can an agent call Groundmail API + MCP and Twilio SendGrid without installing anything?\n\nYes. Groundmail API + MCP has a hosted endpoint at https://api.groundmail.dev and Twilio SendGrid at https://api.sendgrid.com/v3.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/groundmail-vs-sendgrid.json, and with the fewest tokens: https://www.anchorterminal.com/compare/groundmail-vs-sendgrid.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"groundmail\", \"b\": \"sendgrid\"}`. From a terminal: `anchor compare groundmail sendgrid`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/groundmail.json and https://www.anchorterminal.com/api/v1/tools/sendgrid.json\n\n## Other comparisons with Groundmail API + MCP or Twilio SendGrid\n\n- [AhaSend API + MCP vs Groundmail API + MCP](https://www.anchorterminal.com/compare/ahasend-vs-groundmail.md)\n- [AhaSend API + MCP vs Twilio SendGrid](https://www.anchorterminal.com/compare/ahasend-vs-sendgrid.md)\n- [Amazon SES vs Groundmail API + MCP](https://www.anchorterminal.com/compare/amazon-ses-vs-groundmail.md)\n- [Amazon SES vs Twilio SendGrid](https://www.anchorterminal.com/compare/amazon-ses-vs-sendgrid.md)\n- [Brevo API + MCP vs Groundmail API + MCP](https://www.anchorterminal.com/compare/brevo-vs-groundmail.md)\n- [Brevo API + MCP vs Twilio SendGrid](https://www.anchorterminal.com/compare/brevo-vs-sendgrid.md)\n- [Cloudflare Email Service vs Groundmail API + MCP](https://www.anchorterminal.com/compare/cloudflare-email-service-vs-groundmail.md)\n- [Cloudflare Email Service vs Twilio SendGrid](https://www.anchorterminal.com/compare/cloudflare-email-service-vs-sendgrid.md)\n- [Groundmail API + MCP vs Loops API + MCP](https://www.anchorterminal.com/compare/groundmail-vs-loops.md)\n- [Groundmail API + MCP vs MailerSend](https://www.anchorterminal.com/compare/groundmail-vs-mailersend.md)\n- [Groundmail API + MCP vs Mailgun API + MCP](https://www.anchorterminal.com/compare/groundmail-vs-mailgun.md)\n- [Groundmail API + MCP vs Mailjet API + MCP](https://www.anchorterminal.com/compare/groundmail-vs-mailjet.md)\n- [Groundmail API + MCP vs Mailtrap Email API + MCP](https://www.anchorterminal.com/compare/groundmail-vs-mailtrap.md)\n- [Groundmail API + MCP vs Mailchimp Transactional (Mandrill)](https://www.anchorterminal.com/compare/groundmail-vs-mandrill.md)\n- [Groundmail API + MCP vs Postmark API + MCP](https://www.anchorterminal.com/compare/groundmail-vs-postmark.md)\n- [Groundmail API + MCP vs Resend API + MCP](https://www.anchorterminal.com/compare/groundmail-vs-resend.md)\n- [Groundmail API + MCP vs SMTP2GO API + MCP](https://www.anchorterminal.com/compare/groundmail-vs-smtp2go.md)\n- [Groundmail API + MCP vs Zoho CPaaS (formerly ZeptoMail)](https://www.anchorterminal.com/compare/groundmail-vs-zoho-zeptomail.md)\n- [Loops API + MCP vs Twilio SendGrid](https://www.anchorterminal.com/compare/loops-vs-sendgrid.md)\n- [MailerSend vs Twilio SendGrid](https://www.anchorterminal.com/compare/mailersend-vs-sendgrid.md)\n- [Mailgun API + MCP vs Twilio SendGrid](https://www.anchorterminal.com/compare/mailgun-vs-sendgrid.md)\n- [Mailjet API + MCP vs Twilio SendGrid](https://www.anchorterminal.com/compare/mailjet-vs-sendgrid.md)\n- [Mailtrap Email API + MCP vs Twilio SendGrid](https://www.anchorterminal.com/compare/mailtrap-vs-sendgrid.md)\n- [Mailchimp Transactional (Mandrill) vs Twilio SendGrid](https://www.anchorterminal.com/compare/mandrill-vs-sendgrid.md)\n- [Postmark API + MCP vs Twilio SendGrid](https://www.anchorterminal.com/compare/postmark-vs-sendgrid.md)\n- [Resend API + MCP vs Twilio SendGrid](https://www.anchorterminal.com/compare/resend-vs-sendgrid.md)\n- [Twilio SendGrid vs SMTP2GO API + MCP](https://www.anchorterminal.com/compare/sendgrid-vs-smtp2go.md)\n- [Twilio SendGrid vs Zoho CPaaS (formerly ZeptoMail)](https://www.anchorterminal.com/compare/sendgrid-vs-zoho-zeptomail.md)\n",
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