# Coda (Superhuman Docs) vs Microsoft Excel (Microsoft Graph workbook API)

> Coda (Superhuman Docs) scores 64.8 (B) on agent readiness against Microsoft Excel (Microsoft Graph workbook API)'s 58.5 (C), and leads in 5 of 7 scored categories. Microsoft Excel (Microsoft Graph workbook API) leads on schema & documentation and agent ergonomics. Both do sheets…

- Canonical: https://www.anchorterminal.com/compare/coda-vs-microsoft-excel-graph
- Markdown: https://www.anchorterminal.com/compare/coda-vs-microsoft-excel-graph.md (~2,350 tokens)
- Slim: https://www.anchorterminal.com/compare/coda-vs-microsoft-excel-graph.min.md (~730 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/coda-vs-microsoft-excel-graph.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: 2026-10-08

Coda (Superhuman Docs) scores 64.8 (B) on agent readiness against Microsoft Excel (Microsoft Graph workbook API)'s 58.5 (C), and leads in 5 of 7 scored categories. Microsoft Excel (Microsoft Graph workbook API) leads on schema & documentation and agent ergonomics. Both do sheets read.

- Coda (Superhuman Docs): grade B, 64.8/100, rank #247 of 629. Markdown https://www.anchorterminal.com/tools/coda.md · JSON https://www.anchorterminal.com/api/v1/tools/coda.json
- Microsoft Excel (Microsoft Graph workbook API): grade C, 58.5/100, rank #399 of 629. Markdown https://www.anchorterminal.com/tools/microsoft-excel-graph.md · JSON https://www.anchorterminal.com/api/v1/tools/microsoft-excel-graph.json

## Which one, for what

### Coda (Superhuman Docs) (B)

Good for: Teams whose working data already sits in Coda docs and who want an agent to read and upsert table rows or build docs.

Ahead on:
- Reliability, 81 against 62
- Security & auth, 71 against 65
- Payments & pricing, 30 against 15
- Maintenance & community, 72 against 53

Watch for: Row writes return 202 and take a few seconds to apply, and reads come from a snapshot that can be stale

### Microsoft Excel (Microsoft Graph workbook API) (C)

Good for: Agents working on .xlsx files that already live in a Microsoft 365 tenant, and for using Excel's calculation engine through function endpoints.

Ahead on:
- Schema & documentation, 85 against 76
- Agent ergonomics, 73 against 61

Watch for: Reference pages list delegated permissions only and mark application permissions as not supported


## Score by category

| Category | Weight | Coda (Superhuman Docs) | Microsoft Excel (Microsoft Graph workbook API) | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 81 | 62 | Coda (Superhuman Docs) +19 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 76 | 85 | Microsoft Excel (Microsoft Graph workbook API) +9 |
| Agent ergonomics | 13% (16.2 this run) | 61 | 73 | Microsoft Excel (Microsoft Graph workbook API) +12 |
| Security & auth | 14% (17.5 this run) | 71 | 65 | Coda (Superhuman Docs) +6 |
| Payments & pricing | 10% (12.5 this run) | 30 | 15 | Coda (Superhuman Docs) +15 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 72 | 53 | Coda (Superhuman Docs) +19 |
| Transparency & trust | 7% (8.8 this run) | 78 | 75 | Coda (Superhuman Docs) +3 |
| Negative events | ≤15 | -3 | -4 | |
| **Total** | | **64.8 · B** | **58.5 · C** | |

## Facts side by side

| Fact | Coda (Superhuman Docs) | Microsoft Excel (Microsoft Graph workbook API) |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Superhuman Platform Inc. | Microsoft |
| Hosted endpoint | `https://coda.io/apis/v1` | `https://graph.microsoft.com/v1.0` |
| Transports | HTTP, Streamable HTTP | HTTP |
| Auth | OAuth or key | OAuth |
| Pricing | Freemium | Your plan |
| x402 | no | no |
| Licence | Proprietary service under Superhuman's terms of service and developer terms. The Packs SDK on GitHub is MIT | MIT (SDKs) |
| Tools exposed | 34 | none |
| Read-only variant documented | no | no |
| llms.txt | no | no |
| Last release | 2026-09-24 | 2025-09-19 |
| Terms last updated | 2025-10-29 | 2025-10-01 |
| Privacy policy last updated | 2026-07-06 | 2026-09-01 |
| Customer content may train models | yes | yes |
| Terms restrict automated access | not found in the text | yes |
| Terms restrict benchmarking | yes | yes |
| Terms or service can change without notice | not found in the text | yes |
| Arbitration or class-action waiver | yes | not found in the text |
| Popularity | 10k npm/wk | 835 stars, 2.9M npm/wk, 1.6M PyPI/wk |

## Verdicts

**Coda (Superhuman Docs).** API tokens can be limited to one doc or one table and to read or write, and the OpenAPI description covers 125 operations with 429 on almost all. Writes are queued and answered with 202, so each needs a status check. The REST API has no idempotency keys or official client libraries, and the MCP server is in beta.

**Microsoft Excel (Microsoft Graph workbook API).** Ranges, tables, charts and 366 worksheet function endpoints are reachable over REST with a public OpenAPI, and a non-persistent session lets an agent test changes without saving them. The reference pages list delegated permissions only, with Files.ReadWrite as the least privileged scope, and writes take no idempotency key.

## Before you call either

### Coda (Superhuman Docs)

1. Poll `/mutationStatus/{requestId}` after every row write. A 202 means queued, and the edit can still fail
2. Send `X-Coda-Doc-Version: latest` when a read must reflect recent edits, and handle the 400 it returns when the snapshot is behind
3. Use `keyColumns` on `POST .../rows` so a retried insert updates the same row instead of adding a duplicate
4. Ask for a token restricted to the one doc or table and to read access where the task allows. An unrestricted token can do anything its owner can
5. Read MCP tool names from the tool list at run time. The vendor says names and parameters can change during the beta

### Microsoft Excel (Microsoft Graph workbook API)

1. Create a session with POST /workbook/createSession and send `workbook-session-id` on every call. Persistent sessions expire after about 5 minutes idle
2. Set `persistChanges` to false when you only need a calculation or a chart image, so nothing is saved to the file
3. Send one request at a time per workbook and wait for each response. Microsoft warns that parallel writes cause throttling, timeouts and merge conflicts
4. Add rows in one call with a two-dimensional `values` array, and check the table before repeating a row add that returned 504
5. Read bounded addresses such as A1:D500. A whole-column range such as C:C returns null for values, and writes to it are refused

## Questions

### Which is better for AI agents, Coda (Superhuman Docs) or Microsoft Excel (Microsoft Graph workbook API)?

Coda (Superhuman Docs) scores 64.8 (B) on agent readiness against Microsoft Excel (Microsoft Graph workbook API)'s 58.5 (C), and leads in 5 of 7 scored categories. Microsoft Excel (Microsoft Graph workbook API) leads on schema & documentation and agent ergonomics.

### Do Coda (Superhuman Docs) and Microsoft Excel (Microsoft Graph workbook API) need an API key?

Coda (Superhuman Docs) takes an API key or an OAuth sign-in. Microsoft Excel (Microsoft Graph workbook API) uses an OAuth sign-in.

### Can an agent call Coda (Superhuman Docs) and Microsoft Excel (Microsoft Graph workbook API) without installing anything?

Yes. Coda (Superhuman Docs) has a hosted endpoint at https://coda.io/apis/v1 and Microsoft Excel (Microsoft Graph workbook API) at https://graph.microsoft.com/v1.0.


## For agents

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

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