# Docusign vs airSlate SignNow

> airSlate SignNow scores 68.5 (B) on agent readiness against Docusign's 62.5 (B), and leads in 4 of 7 scored categories. Docusign leads on maintenance & community. Both do esign send. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/docusign-vs-signnow
- Markdown: https://www.anchorterminal.com/compare/docusign-vs-signnow.md (~2,100 tokens)
- Slim: https://www.anchorterminal.com/compare/docusign-vs-signnow.min.md (~730 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/docusign-vs-signnow.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

airSlate SignNow scores 68.5 (B) on agent readiness against Docusign's 62.5 (B), and leads in 4 of 7 scored categories. Docusign leads on maintenance & community. Both do esign send.

- Docusign: grade B, 62.5/100, rank #301 of 629. Markdown https://www.anchorterminal.com/tools/docusign.md · JSON https://www.anchorterminal.com/api/v1/tools/docusign.json
- airSlate SignNow: grade B, 68.5/100, rank #168 of 629. Markdown https://www.anchorterminal.com/tools/signnow.md · JSON https://www.anchorterminal.com/api/v1/tools/signnow.json

## Which one, for what

### Docusign (B)

Good for: Teams whose company already uses Docusign and needs an agent to send envelopes from templates, embed signing and track status with a full audit trail.

Ahead on:
- Maintenance & community, 81 against 72

Watch for: health.docusign.com lists 34 incidents since 9 July 2026, including a two-hour NA4 disruption on 30 July and email notification failures from 25 to 30 September

### airSlate SignNow (B)

Good for: An agent that sends agreements from templates, embeds signing in another product or tracks invites, and teams that want per-invite pricing with a free test mode.

Ahead on:
- Reliability, 93 against 57
- Schema & documentation, 81 against 70
- Payments & pricing, 35 against 30

Also in its favour:
- Runs on your own machine

Watch for: API keys don't expire and work for all API requests. Narrower access needs an OAuth token requested with a URL-pattern scope


## Score by category

| Category | Weight | Docusign | airSlate SignNow | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 57 | 93 | airSlate SignNow +36 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 70 | 81 | airSlate SignNow +11 |
| Agent ergonomics | 13% (16.2 this run) | 70 | 66 | Docusign +4 |
| Security & auth | 14% (17.5 this run) | 64 | 62 | Docusign +2 |
| Payments & pricing | 10% (12.5 this run) | 30 | 35 | airSlate SignNow +5 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 81 | 72 | Docusign +9 |
| Transparency & trust | 7% (8.8 this run) | 72 | 74 | airSlate SignNow +2 |
| Negative events | ≤15 | 0 | -2 | |
| **Total** | | **62.5 · B** | **68.5 · B** | |

## Facts side by side

| Fact | Docusign | airSlate SignNow |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Docusign, Inc. | airSlate, Inc. |
| Hosted endpoint | `https://mcp.docusign.com/mcp` | `https://api.signnow.com` |
| Transports | HTTP | HTTP, Streamable HTTP, stdio |
| Auth | OAuth | OAuth or key |
| Pricing | Paid | Pay per use |
| x402 | no | no |
| Licence | Proprietary service under Docusign's Master Services Agreement. The OpenAPI specifications repository and the eSignature SDKs on GitHub are MIT | Proprietary service under the SignNow Terms of Service. The MCP server and the SDKs on GitHub are MIT |
| Tools exposed | 42 | 21 |
| Read-only variant documented | no | yes |
| llms.txt | no | yes |
| MCP registry | not listed | `io.github.signnow/sn-mcp-server` |
| Last release | 2026-09-30 | 2026-09-03 |
| Terms last updated | no date given | 2023-03-02 |
| Privacy policy last updated | 2025-10-09 | 2026-08-12 |
| Customer content may train models | yes, with an opt-out | not found in the text |
| 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 | not found in the text |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 543k npm/wk, 306k PyPI/wk | 8 stars, 7.7k npm/wk, 5.3k PyPI/wk |

## Verdicts

**Docusign.** The eSignature REST API has public Swagger and OpenAPI files on GitHub, OAuth 2.0, a free developer sandbox and Connect webhooks, and the MCP server reached general availability on 30 September 2026. Production needs a paid plan from $50 a month and a Go-Live review, and the status site lists 34 incidents since 9 July 2026.

**airSlate SignNow.** The REST API has a public OpenAPI 3.0 spec with 354 operations, Markdown docs, a free Development mode with 500 invites and a hosted MCP server with OAuth. API keys don't expire and carry full account access, no idempotency keys were found, and the MCP server's GitHub repository was archived when checked on 7 October 2026.

## Before you call either

### Docusign

1. Call /oauth/userinfo once after sign-in, cache `base_uri` and the account ID, and send every eSignature call to that host under /restapi/v2.1
2. Create and send an envelope in one Envelopes:create call with `status` set to `sent`. Docusign asks for five calls or fewer per envelope
3. Subscribe to Connect or set `eventNotification` for status. Polling one envelope more than once every 15 minutes is flagged and can fail the Go-Live review
4. Set `transactionId` on envelope creation so a retry after a lost response can find the envelope. The ID is valid for seven days
5. Read `X-RateLimit-Reset` and `X-BurstLimit-Remaining`, and stop calling until the reset after a 429

### airSlate SignNow

1. Call https://api.signnow.com with `Authorization: Bearer <API key or access token>`. Development and Live share this host, and Development documents carry a watermark
2. Request OAuth tokens with a narrow `scope` such as `document/* GET/user`. The default `*` grants every API action
3. Read `X-RateLimit-Remaining` and `X-RateLimit-Reset` on each response. The limit is 500 requests an hour in Development and 1,000 in Live, and 429 has no Retry-After
4. Check invite status before resending. No idempotency key exists, and a repeated invite call counts as another charged invite
5. Set `secret_key` when creating an event subscription and verify `X-SignNow-Signature` (HMAC SHA-256 of the body) on every callback

## Questions

### Which is better for AI agents, Docusign or airSlate SignNow?

airSlate SignNow scores 68.5 (B) on agent readiness against Docusign's 62.5 (B), and leads in 4 of 7 scored categories. Docusign leads on maintenance & community.

### Do Docusign and airSlate SignNow need an API key?

Docusign uses an OAuth sign-in. airSlate SignNow takes an API key or an OAuth sign-in.

### Can an agent call Docusign and airSlate SignNow without installing anything?

Yes. Docusign has a hosted endpoint at https://mcp.docusign.com/mcp and airSlate SignNow at https://api.signnow.com.


## For agents

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

## Other comparisons with Docusign or airSlate SignNow

- [Documenso vs Docusign](https://www.anchorterminal.com/compare/documenso-vs-docusign.md)
- [Documenso vs airSlate SignNow](https://www.anchorterminal.com/compare/documenso-vs-signnow.md)
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- [Dropbox Sign vs airSlate SignNow](https://www.anchorterminal.com/compare/dropbox-sign-vs-signnow.md)
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