# Argyle vs Salsa

> Argyle scores 63.7 (B) on agent readiness against Salsa's 46.1 (D), and leads in 6 of 7 scored categories. Salsa leads on security & auth. Both do payroll employees. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/argyle-vs-salsa
- Markdown: https://www.anchorterminal.com/compare/argyle-vs-salsa.md (~2,150 tokens)
- Slim: https://www.anchorterminal.com/compare/argyle-vs-salsa.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/argyle-vs-salsa.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

Argyle scores 63.7 (B) on agent readiness against Salsa's 46.1 (D), and leads in 6 of 7 scored categories. Salsa leads on security & auth. Both do payroll employees.

- Argyle: grade B, 63.7/100, rank #297 of 722. Markdown https://www.anchorterminal.com/tools/argyle.md · JSON https://www.anchorterminal.com/api/v1/tools/argyle.json
- Salsa: grade D, 46.1/100, rank #651 of 722. Markdown https://www.anchorterminal.com/tools/salsa.md · JSON https://www.anchorterminal.com/api/v1/tools/salsa.json

## Which one, for what

### Argyle (B)

Good for: A lender, tenant screener, benefits agency or background checker whose applicant can sign in to a payroll or gig account, and who needs paystubs, employment records or an income report.

Ahead on:
- Reliability, 81 against 36
- Schema & documentation, 86 against 73
- Agent ergonomics, 58 against 48
- Payments & pricing, 15 against 5
- Maintenance & community, 75 against 50
- Transparency & trust, 83 against 51

Watch for: No price is published. The site has no pricing page, and fees are set in a Service Order agreed with sales

### Salsa (D)

Good for: A software platform that wants to sell payroll to its own business customers and can sign a partner agreement, with Salsa handling tax filing and money movement.

Ahead on:
- Security & auth, 56 against 48

Watch for: API tokens come from Salsa after a sales contact. No self-serve signup, public price, free tier or trial was found


## Score by category

| Category | Weight | Argyle | Salsa | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 81 | 36 | Argyle +45 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 86 | 73 | Argyle +13 |
| Agent ergonomics | 13% (16.2 this run) | 58 | 48 | Argyle +10 |
| Security & auth | 14% (17.5 this run) | 48 | 56 | Salsa +8 |
| Payments & pricing | 10% (12.5 this run) | 15 | 5 | Argyle +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 75 | 50 | Argyle +25 |
| Transparency & trust | 7% (8.8 this run) | 83 | 51 | Argyle +32 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **63.7 · B** | **46.1 · D** | |

## Facts side by side

| Fact | Argyle | Salsa |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Argyle Systems Inc. | Salsa Software Inc. |
| Hosted endpoint | `https://api.argyle.com/v2` | `https://api.salsa.dev/api/rest/v1` |
| Transports | HTTP | HTTP |
| Auth | API key | API key |
| Pricing | Paid | Paid |
| x402 | no | no |
| Licence | Proprietary service under Argyle's Open Payroll Customer Terms. The React Native Link SDK on npm is Apache 2.0 | Proprietary service. The website Terms of Use are public and the partner agreement isn't. The browser library @salsa-payroll/salsa-js on npm is MIT |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-10-01 | 2026-10-07 |
| Terms last updated | 2026-10-01 | 2022-04-07 |
| Privacy policy last updated | 2026-10-01 | 2025-09-24 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | not found in the text | yes |
| Terms restrict benchmarking | yes | not found in the text |
| Terms or service can change without notice | not found in the text | yes |
| Arbitration or class-action waiver | yes | yes |
| Popularity | 481 npm/wk | 435 npm/wk |

## Verdicts

**Argyle.** Graded on the REST API. One OpenAPI file covers 91 operations, llms.txt indexes Markdown docs, and a Sandbox with sample users comes with a Console sign-up. Every payroll connection needs the worker to sign in through Link. No prices are published, no idempotency keys were found, and API keys carry no per-key scopes.

**Salsa.** Salsa is reached as an embedded-payroll partner, not through an employer's existing payroll account. The REST API has a public OpenAPI 3.1 spec with 123 operations, a payroll preview, a separate confirm step and short-lived user tokens limited by role. Access starts with a sales conversation, and no public price, self-serve sandbox, status page or API changelog was found.

## Before you call either

### Argyle

1. Send HTTP Basic auth with `api_key_id` as the username and `api_key_secret` as the password. Sandbox keys fail with 401 on Production and the reverse
2. Create the user with `POST /v2/users` and an `external_id`, then look it up by `external_id` before retrying. No idempotency key was found
3. Do not read data straight after an account connects. Wait for the account and data webhooks, or for the verification status, before fetching records
4. Follow the full URL in `next` when paging. Do not build cursor values or fetch pages in parallel. `limit` defaults to 10 and stops at 200
5. Stay under 50 requests a second. On 429, queue the request and retry later, not at once
6. Treat `DELETE /v2/users/{id}` as permanent. It removes every resource tied to that user, with no confirmation step

### Salsa

1. Use the sandbox token against https://api.sandbox.salsa.dev and the production token against https://api.salsa.dev. Each environment has its own token
2. Call POST /payroll-runs/preview before creating a run, then confirm the PENDING run in a separate call. Confirming starts the employer debit
3. Send your own externalId on every create. A repeat returns a uniqueness error, which is the only duplicate protection
4. Make sure externalId values are unique across all employers, since each entity type has one namespace
5. Mint a user token with the lowest role and the fewest employerIds the task needs, and keep the partner token on the server

## Questions

### Which is better for AI agents, Argyle or Salsa?

Argyle scores 63.7 (B) on agent readiness against Salsa's 46.1 (D), and leads in 6 of 7 scored categories. Salsa leads on security & auth.

### Do Argyle and Salsa need an API key?

Both need an API key.

### Can an agent call Argyle and Salsa without installing anything?

Yes. Argyle has a hosted endpoint at https://api.argyle.com/v2 and Salsa at https://api.salsa.dev/api/rest/v1.


## For agents

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

## Other comparisons with Argyle or Salsa

- [Argyle vs Check](https://www.anchorterminal.com/compare/argyle-vs-check-payroll.md)
- [Argyle vs Employment Hero Payroll](https://www.anchorterminal.com/compare/argyle-vs-employment-hero.md)
- [Argyle vs Everee](https://www.anchorterminal.com/compare/argyle-vs-everee.md)
- [Argyle vs Finch](https://www.anchorterminal.com/compare/argyle-vs-finch.md)
- [Argyle vs Gusto](https://www.anchorterminal.com/compare/argyle-vs-gusto.md)
- [Argyle vs Paychex](https://www.anchorterminal.com/compare/argyle-vs-paychex.md)
- [Argyle vs Zeal](https://www.anchorterminal.com/compare/argyle-vs-zeal.md)
- [Finch vs Salsa](https://www.anchorterminal.com/compare/finch-vs-salsa.md)
- [Paychex vs Salsa](https://www.anchorterminal.com/compare/paychex-vs-salsa.md)
- [Check vs Salsa](https://www.anchorterminal.com/compare/check-payroll-vs-salsa.md)
- [Employment Hero Payroll vs Salsa](https://www.anchorterminal.com/compare/employment-hero-vs-salsa.md)
- [Everee vs Salsa](https://www.anchorterminal.com/compare/everee-vs-salsa.md)
- [Gusto vs Salsa](https://www.anchorterminal.com/compare/gusto-vs-salsa.md)
- [Salsa vs Zeal](https://www.anchorterminal.com/compare/salsa-vs-zeal.md)