# 360dialog WhatsApp API + MCP vs Vonage Messages API + MCP

> Vonage Messages API + MCP has a score of 67.1 (B) against 360dialog WhatsApp API + MCP's 52.2 (D). Both do messaging whatsapp. The largest gap is maintenance & community, 72 points. Category scores, facts, verdicts and agent notes side by side.

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- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-05

Vonage Messages API + MCP has a score of 67.1 (B) against 360dialog WhatsApp API + MCP's 52.2 (D). Both do messaging whatsapp. The largest gap is maintenance & community, 72 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
- Vonage Messages API + MCP: grade B, 67.1/100, rank #146 of 452. Markdown https://www.anchorterminal.com/tools/vonage.md · JSON https://www.anchorterminal.com/api/v1/tools/vonage.json

## Which one, for what

Pick 360dialog WhatsApp API + MCP for reliability (+6).

Pick Vonage Messages API + MCP for schema & documentation (+20), security & auth (+38), maintenance & community (+72).

## Score by category

| Category | Weight | 360dialog WhatsApp API + MCP | Vonage Messages API + MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 83 | 77 | 360dialog WhatsApp API + MCP +6 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 70 | 90 | Vonage Messages API + MCP +20 |
| Agent ergonomics | 13% (16.2 this run) | 53 | 50 | 360dialog WhatsApp API + MCP +3 |
| Security & auth | 14% (17.5 this run) | 35 | 73 | Vonage Messages API + MCP +38 |
| Payments & pricing | 10% (12.5 this run) | 35 | 37 | Vonage Messages API + MCP +2 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 8 | 80 | Vonage Messages API + MCP +72 |
| Transparency & trust | 7% (8.8 this run) | 50 | 52 | Vonage Messages API + MCP +2 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **52.2 · D** | **67.1 · B** | |

## Facts side by side

| Fact | 360dialog WhatsApp API + MCP | Vonage Messages API + MCP |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | 360dialog | Vonage (Ericsson) |
| Hosted endpoint | `https://waba-v2.360dialog.io` | `https://api.nexmo.com/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 | 15 |
| 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 | `io.github.Vonage/vonage-documentation-mcp` |
| Last release | none | 2026-09-16 |
| Popularity | none | 154k npm/wk, 67k 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.

**Vonage Messages API + MCP.** POST /v1/messages covers six channels, with SMS failover for WhatsApp and RCS. No idempotency key, and channel rejections arrive only by status webhook after a 202.

## 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

### Vonage Messages API + MCP

1. Keep api.nexmo.com as the host, don't rewrite it to vonage.com
2. Use the Messages API, not the legacy SMS API
3. Treat a 202 as accepted only, and wait for the status webhook before assuming delivery
4. Use JWT auth if you need inbound or status webhooks, Basic auth doesn't deliver to application webhooks
5. Verify the webhook JWT and its payload_hash against the raw body

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