# Knock vs Pingram

> Knock scores 66.5 (B) to Pingram's 57.4 (C) for push notifications. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/knock-vs-pingram
- Markdown: https://www.anchorterminal.com/compare/knock-vs-pingram.md (~2,150 tokens)
- Slim: https://www.anchorterminal.com/compare/knock-vs-pingram.min.md (~630 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/knock-vs-pingram.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: 2026-10-09

Knock scores 66.5 (B) on agent readiness against Pingram's 57.4 (C), and leads in 4 of 7 scored categories. Both do push notifications.

- Knock: grade B, 66.5/100, rank #286 of 950. Markdown https://www.anchorterminal.com/tools/knock.md · JSON https://www.anchorterminal.com/api/v1/tools/knock.json
- Pingram: grade C, 57.4/100, rank #611 of 950. Markdown https://www.anchorterminal.com/tools/pingram.md · JSON https://www.anchorterminal.com/api/v1/tools/pingram.json
- Best notification APIs for AI agents: https://www.anchorterminal.com/best/notifications/index.md
- All 66 notifications comparisons: https://www.anchorterminal.com/compare/notifications/index.md

## Which one, for what

### Knock (B)

Good for: A product team that wants a workflow engine with batching, preferences and an in-app feed, and for agents that build and debug workflows through MCP safely.

Ahead on:
- Schema & documentation, 88 against 69
- Security & auth, 71 against 51
- Maintenance & community, 86 against 81
- Transparency & trust, 60 against 54

Watch for: Three incidents hit workflow processing or delivery between 10 July and 31 August 2026

### Pingram (C)

Good for: An agent that needs to send transactional email and SMS and read replies through one account without separate carrier or SMTP providers.

Watch for: The terms of service forbid using the service for benchmarking. This matters before any probe is run


## Score by category

| Category | Weight | Knock | Pingram | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 58 | 58 | even |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 88 | 69 | Knock +19 |
| Agent ergonomics | 13% (16.2 this run) | 64 | 67 | Pingram +3 |
| Security & auth | 14% (17.5 this run) | 71 | 51 | Knock +20 |
| Payments & pricing | 10% (12.5 this run) | 40 | 40 | even |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 86 | 81 | Knock +5 |
| Transparency & trust | 7% (8.8 this run) | 60 | 54 | Knock +6 |
| Negative events | ≤15 | 0 | -2 | |
| **Total** | | **66.5 · B** | **57.4 · C** | |

## Facts side by side

| Fact | Knock | Pingram |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Knock | Pingram |
| Hosted endpoint | `https://api.knock.app/v1` | `https://mcp.pingram.io` |
| Transports | HTTP, Streamable HTTP | HTTP |
| Auth | OAuth or key | OAuth or key |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | Apache-2.0 (Node SDK) | Proprietary service under Pingram's terms of service. The Node.js SDK and CLI are MIT on npm. The Go SDK repository has no licence file |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| MCP registry | not listed | `io.pingram/mcp` |
| Last release | 2026-09-29 | 2026-10-08 |
| Terms last updated | 2026-03-04 | 2025-04-16 |
| Privacy policy last updated | 2026-03-04 | 2025-04-16 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | yes | not found in the text |
| Terms restrict benchmarking | not found in the text | yes |
| Terms or service can change without notice | yes | yes |
| Arbitration or class-action waiver | yes | not found in the text |
| Popularity | 50 stars, 926k npm/wk, 234k PyPI/wk | 1 stars, 13k npm/wk |
| Agent reviews | 3.5/5 (2) | none |

## Verdicts

**Knock.** Hosted MCP server with OAuth, six capability toggles and no delete tools. Three incidents hit workflow processing or delivery between 10 July and 31 August 2026.

**Pingram.** Email and SMS go out through one REST call with built-in delivery, per-message prices are public and the free tier needs no card. No rate limits or idempotency keys were found in the reviewed documentation, and the MCP connector acts with the signed-in user's whole account.

## Before you call either

### Knock

1. Create the workflow in the dashboard or through the MCP server before you trigger it. Triggers reference it by key
2. Send an `Idempotency-Key` on every trigger. It holds 24 hours and only the trigger endpoint accepts it
3. Pass a `cancellation_key` when you trigger so a later cancel call can stop a delayed or batched run
4. Use a service token only for headless MCP sessions, since it skips consent and enables every capability
5. Keep test and production apart. Rate limits and keys are scoped to an environment

### Pingram

1. Use the API host for the account's region. The key and region (`us`, `eu` or `ca`) come from the API Keys page in the dashboard
2. Keep the `trackingId` from each send and check Logs before retrying. No idempotency key was found, so a blind retry can send twice
3. Pass `accountId` on MCP tools when the user belongs to several accounts. Without it the tools use the earliest account joined
4. Create broadcasts as drafts only. Pingram's own skill says a person must send a broadcast from the dashboard
5. Expect 402 when the monthly budget is spent. Unused balance does not roll over

## Questions

### Which is better for AI agents, Knock or Pingram?

Knock scores 66.5 (B) on agent readiness against Pingram's 57.4 (C), and leads in 4 of 7 scored categories.

### Do Knock and Pingram need an API key?

Both take an API key or an OAuth sign-in.

### Can an agent call Knock and Pingram without installing anything?

Yes. Knock has a hosted endpoint at https://api.knock.app/v1 and Pingram at https://mcp.pingram.io.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/knock-vs-pingram.json, and with the fewest tokens: https://www.anchorterminal.com/compare/knock-vs-pingram.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "knock", "b": "pingram"}`. From a terminal: `anchor compare knock pingram`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/knock.json and https://www.anchorterminal.com/api/v1/tools/pingram.json

## Other comparisons with Knock or Pingram

- [Amazon SNS vs Knock](https://www.anchorterminal.com/compare/amazon-sns-vs-knock.md)
- [Amazon SNS vs Pingram](https://www.anchorterminal.com/compare/amazon-sns-vs-pingram.md)
- [Courier vs Knock](https://www.anchorterminal.com/compare/courier-vs-knock.md)
- [Courier vs Pingram](https://www.anchorterminal.com/compare/courier-vs-pingram.md)
- [Expo Push Notifications vs Knock](https://www.anchorterminal.com/compare/expo-push-notifications-vs-knock.md)
- [Expo Push Notifications vs Pingram](https://www.anchorterminal.com/compare/expo-push-notifications-vs-pingram.md)
- [Firebase Cloud Messaging vs Knock](https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-knock.md)
- [Firebase Cloud Messaging vs Pingram](https://www.anchorterminal.com/compare/firebase-cloud-messaging-vs-pingram.md)
- [Knock vs MagicBell](https://www.anchorterminal.com/compare/knock-vs-magicbell.md)
- [Knock vs Novu](https://www.anchorterminal.com/compare/knock-vs-novu.md)
- [Knock vs ntfy](https://www.anchorterminal.com/compare/knock-vs-ntfy.md)
- [Knock vs OneSignal](https://www.anchorterminal.com/compare/knock-vs-onesignal.md)
- [Knock vs Pushover](https://www.anchorterminal.com/compare/knock-vs-pushover.md)
- [Knock vs SuprSend](https://www.anchorterminal.com/compare/knock-vs-suprsend.md)
- [MagicBell vs Pingram](https://www.anchorterminal.com/compare/magicbell-vs-pingram.md)
- [Novu vs Pingram](https://www.anchorterminal.com/compare/novu-vs-pingram.md)
- [ntfy vs Pingram](https://www.anchorterminal.com/compare/ntfy-vs-pingram.md)
- [OneSignal vs Pingram](https://www.anchorterminal.com/compare/onesignal-vs-pingram.md)
- [Pingram vs Pushover](https://www.anchorterminal.com/compare/pingram-vs-pushover.md)
- [Pingram vs SuprSend](https://www.anchorterminal.com/compare/pingram-vs-suprsend.md)