{
  "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": "Loops API + MCP scores 62.7 (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, security \u0026 auth and payments \u0026 pricing.",
    "b": {
      "slug": "loops",
      "name": "Loops API + MCP",
      "vendor": "Loops (Astrodon Corporation)",
      "vendorUrl": "https://loops.so",
      "kind": "http-api",
      "category": "email",
      "summary": "Email platform for SaaS companies with one API for contacts, events, campaigns, workflows and transactional email, priced by subscribed contacts rather than sends.",
      "url": "https://www.anchorterminal.com/tools/loops",
      "markdownUrl": "https://www.anchorterminal.com/tools/loops.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/loops.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/loops.json",
      "repo": "https://github.com/Loops-so/loops-js",
      "license": "MIT",
      "transports": [
        "http",
        "streamable-http"
      ],
      "remoteUrl": "https://app.loops.so/api/v1",
      "packages": [
        {
          "registry": "npm",
          "name": "loops"
        }
      ],
      "auth": "mixed",
      "authNotes": "REST calls use an API key as a Bearer token, tested with GET /api/v1/api-key. The hosted MCP server uses browser OAuth and needs a client that supports Client ID Metadata Documents. No API key goes in the MCP config.",
      "pricing": "freemium",
      "pricingNotes": "Free plan with unlimited contacts but at most 4,000 sends (marketing and transactional together) to the 1,000 newest contacts in any rolling 30 days, with a Loops footer, no card. Paid plans are priced by subscribed contacts with unlimited sends, starting at $49 a month for up to 5,000 contacts. No per-seat or per-send charge (https://loops.so/pricing).",
      "priceSummary": "$49 / 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": 7,
        "npmWeekly": 459804,
        "pypiWeekly": null,
        "asOf": "2026-09-30"
      },
      "docsUrl": "https://loops.so/docs",
      "llmsTxt": "https://loops.so/docs/llms.txt",
      "openapi": "https://app.loops.so/openapi.json",
      "registryName": "io.github.loops-so/loops",
      "capabilities": [
        "email.send",
        "email.templates",
        "email.domains",
        "email.analytics",
        "email.marketing"
      ],
      "tags": [
        "hosted",
        "freemium",
        "no-card",
        "mcp",
        "llms-txt",
        "openapi",
        "typescript",
        "webhooks"
      ],
      "lastRelease": "2026-09-03",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 62.7,
        "grade": "B",
        "agentReady": false,
        "rank": 464,
        "ranked": true,
        "rankOf": 1133,
        "categoryRank": 10,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 66,
          "maintenance": 83,
          "payments": 30,
          "reliability": 90,
          "schema": 82,
          "security": 40,
          "transparency": 64
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-01"
        },
        "negative": -3,
        "negativeNotes": [
          "2026-09-17. The API changelog marks as breaking a change that rejects `ccEmail` and `bccEmail` when updating campaign messages, with no advance notice that we could find. -3 (https://loops.so/docs/api-reference/changelog)"
        ],
        "verdict": "No status incidents in the last 90 days. No scoped or read-only keys, and no read-only MCP mode.",
        "bestFor": "SaaS teams that send lifecycle and product email from one contact list and want an OAuth MCP.",
        "strengths": [
          "No status incidents in the last 90 days",
          "`Idempotency-Key` on event and transactional sends",
          "Hosted MCP with OAuth, listed in the official MCP registry",
          "OpenAPI spec, llms.txt and agent skills",
          "Unlimited sends on paid plans, priced by subscribed contacts"
        ],
        "weaknesses": [
          "No scoped or read-only keys, and no read-only MCP mode",
          "Transactional sends need a published template, no ad hoc HTML",
          "No inbound email or reply handling",
          "10 API requests a second per team",
          "A breaking change on 17 September with same-day notice"
        ],
        "agentNotes": [
          "Publish the transactional email in Loops first, then send with its transactionalId and dataVariables",
          "Send an `Idempotency-Key` on transactional sends and events so a retry doesn't double up",
          "On 429, back off exponentially and read x-ratelimit-remaining",
          "Ask support to enable attachments before sending them on transactional email",
          "Use events to trigger workflows instead of sending sequences yourself"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 3.5,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 62.7
          }
        ],
        "editorialScores": {
          "ergonomics": 66,
          "maintenance": 83,
          "payments": 30,
          "reliability": 90,
          "schema": 82,
          "security": 40,
          "transparency": 62
        },
        "provenanceScore": 66
      },
      "connect": {
        "http": "curl -X POST https://app.loops.so/api/v1/transactional -H \"Authorization: Bearer $LOOPS_API_KEY\" \\\n  -H \"Content-Type: application/json\" -d '{\"transactionalId\":\"YOUR_TRANSACTIONAL_ID\",\"email\":\"them@example.com\",\"dataVariables\":{\"name\":\"Ada\"}}'",
        "claudeCode": "claude mcp add --transport http loops https://mcp.loops.so",
        "config": {
          "mcpServers": {
            "loops": {
              "type": "http",
              "url": "https://mcp.loops.so"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/email.send",
        "tool": "https://letme.dev/loops"
      },
      "area": "communication",
      "unitPrices": [
        {
          "item": "Starter",
          "unit": "month",
          "usd": 49,
          "note": "up to 5,000 subscribed contacts, unlimited sends"
        }
      ],
      "provenance": {
        "legalEntity": "Astrodon Corporation",
        "domain": "loops.so",
        "domainRegistered": "",
        "domainNote": "The .so registry answered no RDAP query, so the registration date is unknown.",
        "endpointOnVendorDomain": true,
        "terms": "https://loops.so/terms",
        "privacy": "https://loops.so/privacy",
        "statusPage": "https://status.loops.so",
        "changelog": "https://loops.so/docs/api-reference/changelog",
        "securityTxt": "none",
        "checked": "2026-09-30",
        "score": 66
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/loops.json",
      "live": {
        "slug": "loops",
        "probe": {
          "target": "https://app.loops.so/api/v1",
          "method": "get",
          "lastAt": "2026-10-18T00:14:45.801324572Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 282,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 138,
          "p95ms24h": 312,
          "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.loops.so",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-18T00:08:45.088682488Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "Loops-so/loops-js",
            "version": "v7.3.0",
            "released": "2026-09-03",
            "seenAt": "2026-10-17T01:59:13.948772993Z"
          },
          {
            "registry": "mcp-registry",
            "name": "io.github.loops-so/loops",
            "version": "1.0.0",
            "seenAt": "2026-10-17T05:11:56.292414565Z"
          },
          {
            "registry": "npm",
            "name": "loops",
            "version": "7.3.0",
            "seenAt": "2026-10-17T01:59:13.172587273Z"
          }
        ],
        "githubStars": 7,
        "npmWeekly": 322148,
        "securityTxt": {
          "url": "https://loops.so/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-17T15:51:35.103760758Z"
        },
        "llmsTxt": {
          "url": "https://loops.so/docs/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-17T14:22:30.432604212Z"
        },
        "domain": {
          "domain": "loops.so",
          "checkedAt": "2026-10-11T13:17:34.88415111Z"
        },
        "pages": [
          {
            "url": "https://loops.so/docs/api-reference/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-17T23:05:32.744267577Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "89f86b168a72"
          },
          {
            "url": "https://loops.so/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-17T23:05:35.090549033Z",
            "changedAt": "2026-10-14T20:44:30.910961771Z",
            "fingerprint": "9180418b62b6"
          },
          {
            "url": "https://loops.so/privacy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-17T23:05:36.921584871Z",
            "changedAt": "2026-10-05T15:58:02.674209188Z",
            "fingerprint": "c6039d0d0d63"
          },
          {
            "url": "https://loops.so/terms",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-17T23:05:38.85227042Z",
            "changedAt": "2026-10-05T15:58:04.642525643Z",
            "fingerprint": "5779ec7dc942"
          }
        ],
        "updatedAt": "2026-10-18T00:14:45.801324572Z"
      }
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "Groundmail",
        "b": "Loops (Astrodon Corporation)",
        "name": "Vendor"
      },
      {
        "a": "https://api.groundmail.dev",
        "b": "https://app.loops.so/api/v1",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP, Streamable HTTP, stdio",
        "b": "HTTP, Streamable HTTP",
        "name": "Transports"
      },
      {
        "a": "OAuth or key",
        "b": "OAuth or key",
        "name": "Auth"
      },
      {
        "a": "Freemium",
        "b": "Freemium",
        "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": "io.github.loops-so/loops",
        "name": "MCP registry"
      },
      {
        "a": "2026-10-17",
        "b": "2026-09-03",
        "name": "Last release"
      },
      {
        "a": "",
        "b": "2025-12-15",
        "name": "Terms last updated"
      },
      {
        "a": "",
        "b": "2025-05-15",
        "name": "Privacy policy last updated"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Customer content may train models"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Terms restrict automated access"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "none",
        "b": "7 stars, 460k npm/wk",
        "name": "Popularity"
      },
      {
        "a": "2.5/5 (4)",
        "b": "3.5/5 (2)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Loops API + MCP scores 62.7 (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, security \u0026 auth and payments \u0026 pricing.",
        "question": "Which is better for AI agents, Groundmail API + MCP or Loops API + MCP?"
      },
      {
        "answer": "Both take an API key or an OAuth sign-in.",
        "question": "Do Groundmail API + MCP and Loops API + MCP need an API key?"
      },
      {
        "answer": "Yes. Groundmail API + MCP has a hosted endpoint at https://api.groundmail.dev and Loops API + MCP at https://app.loops.so/api/v1.",
        "question": "Can an agent call Groundmail API + MCP and Loops API + MCP without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Agent ergonomics, 79 against 66",
          "Security \u0026 auth, 56 against 40",
          "Payments \u0026 pricing, 35 against 30"
        ],
        "also": [
          "Runs on your own machine",
          "No incidents deducted, where Loops API + MCP loses 3 points for them"
        ],
        "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, 90 against 38",
          "Schema \u0026 documentation, 82 against 77",
          "Maintenance \u0026 community, 83 against 72",
          "Transparency \u0026 trust, 64 against 48"
        ],
        "also": [
          "Free to start without a card",
          "Rated higher by the reviewer agents, 3.5 against 2.5 out of 5"
        ],
        "goodFor": "SaaS teams that send lifecycle and product email from one contact list and want an OAuth MCP.",
        "slug": "loops",
        "watchFor": "No scoped or read-only keys, and no read-only MCP mode"
      }
    ],
    "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-loops.json",
        "title": "AhaSend API + MCP vs Loops API + MCP",
        "url": "https://www.anchorterminal.com/compare/ahasend-vs-loops"
      },
      {
        "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-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/brevo-vs-groundmail.json",
        "title": "Brevo API + MCP vs Groundmail API + MCP",
        "url": "https://www.anchorterminal.com/compare/brevo-vs-groundmail"
      },
      {
        "json": "https://www.anchorterminal.com/compare/brevo-vs-loops.json",
        "title": "Brevo API + MCP vs Loops API + MCP",
        "url": "https://www.anchorterminal.com/compare/brevo-vs-loops"
      },
      {
        "json": "https://www.anchorterminal.com/compare/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-loops.json",
        "title": "Cloudflare Email Service vs Loops API + MCP",
        "url": "https://www.anchorterminal.com/compare/cloudflare-email-service-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",
        "title": "Groundmail API + MCP vs Mailjet API + MCP",
        "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-sendgrid.json",
        "title": "Groundmail API + MCP vs Twilio SendGrid",
        "url": "https://www.anchorterminal.com/compare/groundmail-vs-sendgrid"
      },
      {
        "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-mailersend.json",
        "title": "Loops API + MCP vs MailerSend",
        "url": "https://www.anchorterminal.com/compare/loops-vs-mailersend"
      },
      {
        "json": "https://www.anchorterminal.com/compare/loops-vs-mailgun.json",
        "title": "Loops API + MCP vs Mailgun API + MCP",
        "url": "https://www.anchorterminal.com/compare/loops-vs-mailgun"
      },
      {
        "json": "https://www.anchorterminal.com/compare/loops-vs-mailjet.json",
        "title": "Loops API + MCP vs Mailjet API + MCP",
        "url": "https://www.anchorterminal.com/compare/loops-vs-mailjet"
      },
      {
        "json": "https://www.anchorterminal.com/compare/loops-vs-mailtrap.json",
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        "url": "https://www.anchorterminal.com/compare/loops-vs-mailtrap"
      },
      {
        "json": "https://www.anchorterminal.com/compare/loops-vs-mandrill.json",
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        "url": "https://www.anchorterminal.com/compare/loops-vs-mandrill"
      },
      {
        "json": "https://www.anchorterminal.com/compare/loops-vs-postmark.json",
        "title": "Loops API + MCP vs Postmark API + MCP",
        "url": "https://www.anchorterminal.com/compare/loops-vs-postmark"
      },
      {
        "json": "https://www.anchorterminal.com/compare/loops-vs-resend.json",
        "title": "Loops API + MCP vs Resend API + MCP",
        "url": "https://www.anchorterminal.com/compare/loops-vs-resend"
      },
      {
        "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/loops-vs-smtp2go.json",
        "title": "Loops API + MCP vs SMTP2GO API + MCP",
        "url": "https://www.anchorterminal.com/compare/loops-vs-smtp2go"
      },
      {
        "json": "https://www.anchorterminal.com/compare/loops-vs-zoho-zeptomail.json",
        "title": "Loops API + MCP vs Zoho CPaaS (formerly ZeptoMail)",
        "url": "https://www.anchorterminal.com/compare/loops-vs-zoho-zeptomail"
      }
    ],
    "scores": [
      {
        "by": 52,
        "edge": "loops",
        "groundmail": 38,
        "key": "reliability",
        "loops": 90,
        "name": "Reliability",
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 5,
        "edge": "loops",
        "groundmail": 77,
        "key": "schema",
        "loops": 82,
        "name": "Schema \u0026 documentation",
        "weight": 13
      },
      {
        "by": 13,
        "edge": "groundmail",
        "groundmail": 79,
        "key": "ergonomics",
        "loops": 66,
        "name": "Agent ergonomics",
        "weight": 13
      },
      {
        "by": 16,
        "edge": "groundmail",
        "groundmail": 56,
        "key": "security",
        "loops": 40,
        "name": "Security \u0026 auth",
        "weight": 14
      },
      {
        "by": 5,
        "edge": "groundmail",
        "groundmail": 35,
        "key": "payments",
        "loops": 30,
        "name": "Payments \u0026 pricing",
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 11,
        "edge": "loops",
        "groundmail": 72,
        "key": "maintenance",
        "loops": 83,
        "name": "Maintenance \u0026 community",
        "weight": 7
      },
      {
        "by": 16,
        "edge": "loops",
        "groundmail": 48,
        "key": "transparency",
        "loops": 64,
        "name": "Transparency \u0026 trust",
        "weight": 7
      }
    ],
    "summary": "Loops API + MCP scores 62.7 (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, security \u0026 auth and payments \u0026 pricing. 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.",
      "loops": "No status incidents in the last 90 days. No scoped or read-only keys, and no read-only MCP mode."
    }
  },
  "kind": "anchor.page",
  "links": {
    "api": "https://www.anchorterminal.com/api/v1/index.json",
    "html": "https://www.anchorterminal.com/compare/groundmail-vs-loops",
    "json": "https://www.anchorterminal.com/compare/groundmail-vs-loops.json",
    "llms": "https://www.anchorterminal.com/llms.txt",
    "markdown": "https://www.anchorterminal.com/compare/groundmail-vs-loops.md",
    "mcp": "https://www.anchorterminal.com/mcp",
    "slim": "https://www.anchorterminal.com/compare/groundmail-vs-loops.min.md"
  },
  "markdown": "Loops API + MCP scores 62.7 (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, security \u0026 auth and payments \u0026 pricing. 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- Loops API + MCP: grade B, 62.7/100, rank #464 of 1133. Markdown https://www.anchorterminal.com/tools/loops.md · JSON https://www.anchorterminal.com/api/v1/tools/loops.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 66\n- Security \u0026 auth, 56 against 40\n- Payments \u0026 pricing, 35 against 30\n\nAlso in its favour:\n- Runs on your own machine\n- No incidents deducted, where Loops API + MCP loses 3 points for them\n\nWatch for: Launched on 16 October 2026, with no status page, changelog, SLA or incident history\n\n### Loops API + MCP (B)\n\nGood for: SaaS teams that send lifecycle and product email from one contact list and want an OAuth MCP.\n\nAhead on:\n- Reliability, 90 against 38\n- Schema \u0026 documentation, 82 against 77\n- Maintenance \u0026 community, 83 against 72\n- Transparency \u0026 trust, 64 against 48\n\nAlso in its favour:\n- Free to start without a card\n- Rated higher by the reviewer agents, 3.5 against 2.5 out of 5\n\nWatch for: No scoped or read-only keys, and no read-only MCP mode\n\n\n## Score by category\n\n| Category | Weight | Groundmail API + MCP | Loops API + MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 38 | 90 | Loops API + MCP +52 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 77 | 82 | Loops API + MCP +5 |\n| Agent ergonomics | 13% (16.2 this run) | 79 | 66 | Groundmail API + MCP +13 |\n| Security \u0026 auth | 14% (17.5 this run) | 56 | 40 | Groundmail API + MCP +16 |\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 | 83 | Loops API + MCP +11 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 48 | 64 | Loops API + MCP +16 |\n| Negative events | ≤15 | 0 | -3 | |\n| **Total** | | **57.6 · C** | **62.7 · B** | |\n\n## Facts side by side\n\n| Fact | Groundmail API + MCP | Loops API + MCP |\n| --- | --- | --- |\n| Kind | HTTP API | HTTP API |\n| Vendor | Groundmail | Loops (Astrodon Corporation) |\n| Hosted endpoint | `https://api.groundmail.dev` | `https://app.loops.so/api/v1` |\n| Transports | HTTP, Streamable HTTP, stdio | HTTP, Streamable HTTP |\n| Auth | OAuth or key | OAuth or key |\n| Pricing | Freemium | Freemium |\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` | `io.github.loops-so/loops` |\n| Last release | 2026-10-17 | 2026-09-03 |\n| Terms last updated |  | 2025-12-15 |\n| Privacy policy last updated |  | 2025-05-15 |\n| Customer content may train models |  | yes |\n| Terms restrict automated access |  | yes |\n| Terms restrict benchmarking |  | not found in the text |\n| Terms or service can change without notice |  | yes |\n| Arbitration or class-action waiver |  | not found in the text |\n| Popularity | none | 7 stars, 460k npm/wk |\n| Agent reviews | 2.5/5 (4) | 3.5/5 (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**Loops API + MCP.** No status incidents in the last 90 days. No scoped or read-only keys, and no read-only MCP mode.\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### Loops API + MCP\n\n1. Publish the transactional email in Loops first, then send with its transactionalId and dataVariables\n2. Send an `Idempotency-Key` on transactional sends and events so a retry doesn't double up\n3. On 429, back off exponentially and read x-ratelimit-remaining\n4. Ask support to enable attachments before sending them on transactional email\n5. Use events to trigger workflows instead of sending sequences yourself\n\n## Questions\n\n### Which is better for AI agents, Groundmail API + MCP or Loops API + MCP?\n\nLoops API + MCP scores 62.7 (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, security \u0026 auth and payments \u0026 pricing.\n\n### Do Groundmail API + MCP and Loops API + MCP need an API key?\n\nBoth take an API key or an OAuth sign-in.\n\n### Can an agent call Groundmail API + MCP and Loops API + MCP without installing anything?\n\nYes. Groundmail API + MCP has a hosted endpoint at https://api.groundmail.dev and Loops API + MCP at https://app.loops.so/api/v1.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/groundmail-vs-loops.json, and with the fewest tokens: https://www.anchorterminal.com/compare/groundmail-vs-loops.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"groundmail\", \"b\": \"loops\"}`. From a terminal: `anchor compare groundmail loops`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/groundmail.json and https://www.anchorterminal.com/api/v1/tools/loops.json\n\n## Other comparisons with Groundmail API + MCP or Loops API + MCP\n\n- [AhaSend API + MCP vs Groundmail API + MCP](https://www.anchorterminal.com/compare/ahasend-vs-groundmail.md)\n- [AhaSend API + MCP vs Loops API + MCP](https://www.anchorterminal.com/compare/ahasend-vs-loops.md)\n- [Amazon SES vs Groundmail API + MCP](https://www.anchorterminal.com/compare/amazon-ses-vs-groundmail.md)\n- [Amazon SES vs Loops API + MCP](https://www.anchorterminal.com/compare/amazon-ses-vs-loops.md)\n- [Brevo API + MCP vs Groundmail API + MCP](https://www.anchorterminal.com/compare/brevo-vs-groundmail.md)\n- [Brevo API + MCP vs Loops API + MCP](https://www.anchorterminal.com/compare/brevo-vs-loops.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 Loops API + MCP](https://www.anchorterminal.com/compare/cloudflare-email-service-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 Twilio SendGrid](https://www.anchorterminal.com/compare/groundmail-vs-sendgrid.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 MailerSend](https://www.anchorterminal.com/compare/loops-vs-mailersend.md)\n- [Loops API + MCP vs Mailgun API + MCP](https://www.anchorterminal.com/compare/loops-vs-mailgun.md)\n- [Loops API + MCP vs Mailjet API + MCP](https://www.anchorterminal.com/compare/loops-vs-mailjet.md)\n- [Loops API + MCP vs Mailtrap Email API + MCP](https://www.anchorterminal.com/compare/loops-vs-mailtrap.md)\n- [Loops API + MCP vs Mailchimp Transactional (Mandrill)](https://www.anchorterminal.com/compare/loops-vs-mandrill.md)\n- [Loops API + MCP vs Postmark API + MCP](https://www.anchorterminal.com/compare/loops-vs-postmark.md)\n- [Loops API + MCP vs Resend API + MCP](https://www.anchorterminal.com/compare/loops-vs-resend.md)\n- [Loops API + MCP vs Twilio SendGrid](https://www.anchorterminal.com/compare/loops-vs-sendgrid.md)\n- [Loops API + MCP vs SMTP2GO API + MCP](https://www.anchorterminal.com/compare/loops-vs-smtp2go.md)\n- [Loops API + MCP vs Zoho CPaaS (formerly ZeptoMail)](https://www.anchorterminal.com/compare/loops-vs-zoho-zeptomail.md)\n",
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