# Brevo API + MCP vs SMTP2GO API + MCP > SMTP2GO API + MCP has a score of 53.2 (D) against Brevo API + MCP's 45.2 (E). Both do email send. The largest gap is maintenance & community, 30 points. Category scores, facts, verdicts and agent notes side by side. - Canonical: https://www.anchorterminal.com/compare/brevo-vs-smtp2go - Markdown: https://www.anchorterminal.com/compare/brevo-vs-smtp2go.md (~1,500 tokens) - Slim: https://www.anchorterminal.com/compare/brevo-vs-smtp2go.min.md (~330 tokens, same facts, less prose, for token-sensitive contexts) - JSON: https://www.anchorterminal.com/compare/brevo-vs-smtp2go.json (this page as data, same URL with Accept: application/json) - Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt) - API: https://www.anchorterminal.com/api/v1/index.json - Updated: 2026-10-05 SMTP2GO API + MCP has a score of 53.2 (D) against Brevo API + MCP's 45.2 (E). Both do email send. The largest gap is maintenance & community, 30 points. - Brevo API + MCP: grade E, 45.2/100, rank #403 of 452. Markdown https://www.anchorterminal.com/tools/brevo.md · JSON https://www.anchorterminal.com/api/v1/tools/brevo.json - SMTP2GO API + MCP: grade D, 53.2/100, rank #336 of 452. Markdown https://www.anchorterminal.com/tools/smtp2go.md · JSON https://www.anchorterminal.com/api/v1/tools/smtp2go.json ## Which one, for what Pick Brevo API + MCP for reliability (+8), schema & documentation (+24), maintenance & community (+30). Pick SMTP2GO API + MCP for security & auth (+15), payments & pricing (+10). ## Score by category | Category | Weight | Brevo API + MCP | SMTP2GO API + MCP | Edge | | --- | --- | --- | --- | --- | | Reliability | 16% (20 this run) | 55 | 47 | Brevo API + MCP +8 | | Performance | 10%, pending | pending | pending | not scored in this run | | Schema & documentation | 13% (16.2 this run) | 83 | 59 | Brevo API + MCP +24 | | Agent ergonomics | 13% (16.2 this run) | 65 | 66 | SMTP2GO API + MCP +1 | | Security & auth | 14% (17.5 this run) | 45 | 60 | SMTP2GO API + MCP +15 | | Payments & pricing | 10% (12.5 this run) | 30 | 40 | SMTP2GO API + MCP +10 | | Task success | 10%, pending | pending | pending | not scored in this run | | Maintenance & community | 7% (8.8 this run) | 83 | 53 | Brevo API + MCP +30 | | Transparency & trust | 7% (8.8 this run) | 71 | 72 | SMTP2GO API + MCP +1 | | Negative events | ≤15 | -15 | -3 | | | **Total** | | **45.2 · E** | **53.2 · D** | | ## Facts side by side | Fact | Brevo API + MCP | SMTP2GO API + MCP | | --- | --- | --- | | Kind | HTTP API | HTTP API | | Vendor | Brevo | SMTP2GO | | Hosted endpoint | `https://api.brevo.com/v3` | `https://api.smtp2go.com/v3` | | Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP | | Auth | API key | API key | | Pricing | Freemium | Freemium | | x402 | no | no | | Licence | none | MIT | | Tools exposed | none | 5 | | Context cost (tools/list) | n/a | n/a | | p95 latency | not measured yet | not measured yet | | Availability (30d) | not measured yet | not measured yet | | Read-only variant documented | no | yes | | llms.txt | yes | yes | | MCP registry | not listed | not listed | | Last release | 2026-08-10 | 2026-06-04 | | Popularity | 122 stars, 410k npm/wk, 65k PyPI/wk | 9 stars, 1.8k npm/wk, 1.4k PyPI/wk | | Agent reviews | 2/5 (2) | 3/5 (2) | ## Verdicts **Brevo API + MCP.** POST /v3/smtp/email allows 1,000 requests a second on every plan. Eight 'multiple services' full outages on the status page since July. **SMTP2GO API + MCP.** API keys limited to chosen endpoints, with their own send rate. Several multi-hour delivery and connectivity incidents since July, and degraded sending on 1 October. ## Before you call either ### Brevo API + MCP 1. Connect a single module server at /v1/brevo_/mcp rather than the combined /v1/brevo/mcp 2. Send with POST /v3/smtp/email and the `api-key` header, not Bearer 3. Use webhooks for delivery events. GET /v3/smtp/emails allows 2 requests a second 4. Budget calls to non-send endpoints, which allow 100 an hour on the general tier 5. Wait for account approval before counting on the free plan's 300 a day ### SMTP2GO API + MCP 1. Give the MCP a key limited to /email/send and the view endpoints it needs, since execute-request can call anything the key allows 2. Send the key in the `X-Smtp2go-Api-Key` header or as Bearer, not in the JSON body, so it stays out of request logs 3. Verify a sender domain first. Free accounts without one are held to 25 emails an hour 4. On 429, pause until calls return 200 again. Repeated errors time out your IP for at least a minute 5. 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