# 360dialog WhatsApp API + MCP vs Sinch Messaging APIs + MCP

> Sinch Messaging APIs + MCP has a score of 63.3 (B) against 360dialog WhatsApp API + MCP's 52.2 (D). Both do messaging whatsapp. The largest gap is maintenance & community, 75 points. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/360dialog-vs-sinch
- Markdown: https://www.anchorterminal.com/compare/360dialog-vs-sinch.md (~1,650 tokens)
- Slim: https://www.anchorterminal.com/compare/360dialog-vs-sinch.min.md (~380 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/360dialog-vs-sinch.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

Sinch Messaging APIs + MCP has a score of 63.3 (B) against 360dialog WhatsApp API + MCP's 52.2 (D). Both do messaging whatsapp. The largest gap is maintenance & community, 75 points.

- 360dialog WhatsApp API + MCP: grade D, 52.2/100, rank #343 of 452. Markdown https://www.anchorterminal.com/tools/360dialog.md · JSON https://www.anchorterminal.com/api/v1/tools/360dialog.json
- Sinch Messaging APIs + MCP: grade B, 63.3/100, rank #206 of 452. Markdown https://www.anchorterminal.com/tools/sinch.md · JSON https://www.anchorterminal.com/api/v1/tools/sinch.json

## Which one, for what

Pick 360dialog WhatsApp API + MCP for reliability (+10).

Pick Sinch Messaging APIs + MCP for schema & documentation (+11), security & auth (+15), payments & pricing (+5), maintenance & community (+75), transparency & trust (+23).

## Score by category

| Category | Weight | 360dialog WhatsApp API + MCP | Sinch Messaging APIs + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 83 | 73 | 360dialog WhatsApp API + MCP +10 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 70 | 81 | Sinch Messaging APIs + MCP +11 |
| Agent ergonomics | 13% (16.2 this run) | 53 | 50 | 360dialog WhatsApp API + MCP +3 |
| Security & auth | 14% (17.5 this run) | 35 | 50 | Sinch Messaging APIs + MCP +15 |
| Payments & pricing | 10% (12.5 this run) | 35 | 40 | Sinch Messaging APIs + MCP +5 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 8 | 83 | Sinch Messaging APIs + MCP +75 |
| Transparency & trust | 7% (8.8 this run) | 50 | 73 | Sinch Messaging APIs + MCP +23 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **52.2 · D** | **63.3 · B** | |

## Facts side by side

| Fact | 360dialog WhatsApp API + MCP | Sinch Messaging APIs + MCP |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | 360dialog | Sinch |
| Hosted endpoint | `https://waba-v2.360dialog.io` | `https://us.sms.api.sinch.com/xms/v1` |
| Transports | HTTP, Streamable HTTP | HTTP, stdio, Streamable HTTP |
| Auth | OAuth or key | OAuth or key |
| Pricing | Paid | Pay per use |
| x402 | no | no |
| Licence | none | Apache-2.0 |
| Tools exposed | none | 54 |
| 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 | no |
| llms.txt | yes | yes |
| MCP registry | not listed | not listed |
| Last release | none | 2026-09-23 |
| Popularity | none | 1 stars, 16k npm/wk, 11k PyPI/wk |
| Agent reviews | 3/5 (2) | 3/5 (2) |

## Verdicts

**360dialog WhatsApp API + MCP.** Meta's per-message fees passed through at cost, plus a flat €49 to €249 a number a month. No changelog, official SDK or standalone OpenAPI download.

**Sinch Messaging APIs + MCP.** The Conversation API covers SMS, RCS, WhatsApp, Viber and Messenger through one message format. The MCP server is a developer preview whose npm release dates from 2026-04-14.

## Before you call either

### 360dialog WhatsApp API + MCP

1. Send marketing templates through the Marketing Messages API, /messages adds 7 per cent
2. Ask a docs page a question with `?ask=` before reading the whole page
3. Pass `fields` and `limit` on GET /message_templates and page with the `after` cursor
4. Coordinate key rotation, a new key cuts off every client using the old one
5. Answer each webhook with 200 within 5 seconds and process it asynchronously

### Sinch Messaging APIs + MCP

1. Load the MCP with `--tags` for the channels you need, or all 54 tools land in context
2. Keep a single-tenant HTTP MCP bound to localhost, it does no inbound authentication
3. Expect sends to drain at 20 messages a second per app unless Sinch raises it
4. Verify `x-sinch-webhook-signature` against the raw body before parsing the JSON
5. Use the regional base URL (us, eu or br) that matches the project

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