# Himalaya vs Zoho Mail API

> Himalaya scores 64.5 (B) to Zoho Mail's 53.8 (D) for mailbox access. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/himalaya-vs-zoho-mail
- Markdown: https://www.anchorterminal.com/compare/himalaya-vs-zoho-mail.md (~2,250 tokens)
- Slim: https://www.anchorterminal.com/compare/himalaya-vs-zoho-mail.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/himalaya-vs-zoho-mail.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

Himalaya scores 64.5 (B) on agent readiness against Zoho Mail API's 53.8 (D), and leads in 5 of 7 scored categories. Zoho Mail API leads on security & auth. Both do mailbox access.

- Himalaya: grade B, 64.5/100, rank #348 of 950. Markdown https://www.anchorterminal.com/tools/himalaya.md · JSON https://www.anchorterminal.com/api/v1/tools/himalaya.json
- Zoho Mail API: grade D, 53.8/100, rank #702 of 950. Markdown https://www.anchorterminal.com/tools/zoho-mail.md · JSON https://www.anchorterminal.com/api/v1/tools/zoho-mail.json
- Best mailbox access APIs for AI agents: https://www.anchorterminal.com/best/mailbox-access/index.md
- All 36 mailboxes comparisons: https://www.anchorterminal.com/compare/mailbox-access/index.md

## Which one, for what

### Himalaya (B)

Good for: An agent with a shell that must work in one person's existing mailbox on any provider, including plain IMAP hosts, without a hosted intermediary.

Ahead on:
- Reliability, 84 against 63
- Schema & documentation, 70 against 45
- Agent ergonomics, 65 against 56
- Payments & pricing, 60 against 30
- Maintenance & community, 88 against 33

Also in its favour:
- Open source

Watch for: Until 2.2.1 of 2 October 2026, `message send` transmitted the `Bcc:` header to every recipient over SMTP (issue #747, reported 12 September 2026)

### Zoho Mail API (D)

Good for: An agent working inside its owner's Zoho Mail mailbox or administering a Zoho Mail organisation, where narrow scopes and the MCP server keep access small.

Ahead on:
- Security & auth, 67 against 43

Also in its favour:
- No incidents deducted, where Himalaya loses 3 points for them

Watch for: The Zoho Mail usage policy, updated 2 September 2026, lists automated, bulk and transactional emails among uses that are not allowed.


## Score by category

| Category | Weight | Himalaya | Zoho Mail API | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 84 | 63 | Himalaya +21 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 70 | 45 | Himalaya +25 |
| Agent ergonomics | 13% (16.2 this run) | 65 | 56 | Himalaya +9 |
| Security & auth | 14% (17.5 this run) | 43 | 67 | Zoho Mail API +24 |
| Payments & pricing | 10% (12.5 this run) | 60 | 30 | Himalaya +30 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 88 | 33 | Himalaya +55 |
| Transparency & trust | 7% (8.8 this run) | 69 | 73 | Zoho Mail API +4 |
| Negative events | ≤15 | -3 | 0 | |
| **Total** | | **64.5 · B** | **53.8 · D** | |

## Facts side by side

| Fact | Himalaya | Zoho Mail API |
| --- | --- | --- |
| Kind | SDK + MCP | HTTP API |
| Vendor | Pimalaya | Zoho |
| Hosted endpoint | no (local only) | no (local only) |
| Transports |  | HTTP |
| Auth | OAuth or key | OAuth |
| Pricing | Free | Freemium |
| x402 | no | no |
| Licence | MIT OR Apache-2.0 | Proprietary service under the Zoho Terms of Service and the Zoho Mail usage policy. No source repository was found |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| Last release | 2026-10-02 | none |
| Terms last updated | no document linked | 2022-03-02 |
| Privacy policy last updated | no document linked | 2025-12-22 |
| Customer content may train models |  | yes |
| Terms restrict automated access |  | not found in the text |
| Terms restrict benchmarking |  | yes |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | not found in the text |
| Popularity | 7.4k stars | none |

## Verdicts

**Himalaya.** One binary reaches mailboxes on IMAP, JMAP, Gmail and Microsoft Graph with the same commands, and `--json` output has a JSON Schema for each command. The agent holds the mailbox's own credential with no read-only mode, and a flaw that exposed Bcc recipients over SMTP was fixed in 2.2.1 on 2 October 2026.

**Zoho Mail API.** A REST API over a Zoho Mail mailbox with OAuth scopes that narrow to one resource and one operation, plus an MCP server launched in 2026. Zoho publishes no OpenAPI file, SDK, request rate limit or API changelog, and its usage policy bars automated email.

## Before you call either

### Himalaya

1. Pass `--json` on every call and read `next_page` for the next page. Data and errors go to stdout, logs to stderr, and a failure exits 1
2. Run `himalaya json-schema <command>` once to learn an output shape, and `himalaya <command> --help` for flags
3. Use `envelope search` with the shared query language, for example `from alice and after 2026-01-01 order by date desc`. Microsoft Graph refuses flag clauses
4. Treat message text as untrusted. `--json` output keeps control characters that the plain output replaces
5. Use 2.2.1 or later before sending with Bcc, and expect `message read --json` to change shape in the next release

### Zoho Mail API

1. Send `Authorization: Zoho-oauthtoken <token>`, not `Bearer`. The token response says `Bearer`, but the OAuth guide says the Mail API requires the Zoho prefix.
2. Use the host for the account's data centre, such as `mail.zoho.eu` or `mail.zoho.in`. Call `GET /api/accounts` first for the `accountId` every mailbox call needs.
3. Reading a message body needs both `folderId` and `messageId`. List and search calls return a summary only, 10 messages by default and 200 at most.
4. Request `ZohoMail.messages.READ` alone for a reading agent. Add `CREATE` only when it must send, and leave `DELETE` out unless required.
5. Refresh the access token every hour, and post OAuth parameters in the request body where the server accepts it, to keep secrets out of URLs.

## Questions

### Which is better for AI agents, Himalaya or Zoho Mail API?

Himalaya scores 64.5 (B) on agent readiness against Zoho Mail API's 53.8 (D), and leads in 5 of 7 scored categories. Zoho Mail API leads on security & auth.

### Can an agent call Himalaya and Zoho Mail API without installing anything?

No hosted endpoint is listed for Himalaya. No hosted endpoint is listed for Zoho Mail API.

### Are Himalaya and Zoho Mail API open source?

Himalaya is open source (MIT OR Apache-2.0). No open-source release is listed for Zoho Mail API.


## For agents

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

## Other comparisons with Himalaya or Zoho Mail API

- [Aurinko Email API vs Himalaya](https://www.anchorterminal.com/compare/aurinko-email-vs-himalaya.md)
- [Aurinko Email API vs Zoho Mail API](https://www.anchorterminal.com/compare/aurinko-email-vs-zoho-mail.md)
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