# PayFit vs Salsa

> PayFit scores 55.5 (C) to Salsa's 46.1 (D) for payroll records. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/payfit-vs-salsa
- Markdown: https://www.anchorterminal.com/compare/payfit-vs-salsa.md (~2,250 tokens)
- Slim: https://www.anchorterminal.com/compare/payfit-vs-salsa.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/payfit-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: 2026-10-09

PayFit scores 55.5 (C) on agent readiness against Salsa's 46.1 (D), and leads in 5 of 7 scored categories. Salsa leads on security & auth and maintenance & community. Both do payroll records.

- PayFit: grade C, 55.5/100, rank #656 of 950. Markdown https://www.anchorterminal.com/tools/payfit.md · JSON https://www.anchorterminal.com/api/v1/tools/payfit.json
- Salsa: grade D, 46.1/100, rank #857 of 950. Markdown https://www.anchorterminal.com/tools/salsa.md · JSON https://www.anchorterminal.com/api/v1/tools/salsa.json
- Best payroll APIs and embedded payroll for AI agents: https://www.anchorterminal.com/best/payroll/index.md
- All 55 payroll comparisons: https://www.anchorterminal.com/compare/payroll/index.md

## Which one, for what

### PayFit (C)

Good for: An agent working for an employer that already runs payroll on PayFit in France, the UK or Spain and needs employees, contracts, payslips, absences or the payroll journal.

Ahead on:
- Reliability, 79 against 36
- Schema & documentation, 78 against 73
- Payments & pricing, 10 against 5
- Transparency & trust, 70 against 51

Watch for: No operation runs, previews or approves a payroll. The API reads payroll status, payslips and accounting exports

### 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 51
- Maintenance & community, 50 against 28

Also in its favour:
- A hosted endpoint, with nothing to install

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 | PayFit | Salsa | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 79 | 36 | PayFit +43 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 78 | 73 | PayFit +5 |
| Agent ergonomics | 13% (16.2 this run) | 51 | 48 | PayFit +3 |
| Security & auth | 14% (17.5 this run) | 51 | 56 | Salsa +5 |
| Payments & pricing | 10% (12.5 this run) | 10 | 5 | PayFit +5 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 28 | 50 | Salsa +22 |
| Transparency & trust | 7% (8.8 this run) | 70 | 51 | PayFit +19 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **55.5 · C** | **46.1 · D** | |

## Facts side by side

| Fact | PayFit | Salsa |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | PayFit SAS | Salsa Software Inc. |
| Hosted endpoint | no (local only) | `https://api.salsa.dev/api/rest/v1` |
| Transports | HTTP | HTTP |
| Auth | OAuth or key | API key |
| Pricing | Paid | Paid |
| x402 | no | no |
| Licence | Proprietary service under PayFit's general terms of service | 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 | 2026-07-23 | 2026-10-07 |
| Terms last updated | 2026-06-15 | 2022-04-07 |
| Privacy policy last updated | 2026-06-15 | 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 | yes | yes |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | none | 435 npm/wk |

## Verdicts

**PayFit.** A public OpenAPI 3.0 file, llms.txt and scoped keys let a paying customer's agent read payroll outputs and write absences. The API cannot run or approve a payroll, new partner integrations are not being accepted, and no idempotency keys or SDKs were found.

**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

### PayFit

1. Have a company admin create the key at app.payfit.com/integrations/hub/api with only the scopes the task needs. The key is shown once
2. POST the key to `https://oauth.payfit.com/introspect` to get `company_id`, then call `https://partner-api.payfit.com/companies/{companyId}/...`
3. Page lists with `nextPageToken` and `maxResults`, which defaults to 10 and stops at 50
4. Check before repeating a failed POST. There is no idempotency key, and `POST /absences` creates an absence that is already validated
5. A collaborator or contract created through the API stays incomplete until an HR admin finishes it in the PayFit app, and a new contract takes 2 to 5 minutes to appear

### 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, PayFit or Salsa?

PayFit scores 55.5 (C) on agent readiness against Salsa's 46.1 (D), and leads in 5 of 7 scored categories. Salsa leads on security & auth and maintenance & community.

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

PayFit takes an API key or an OAuth sign-in. Salsa needs an API key.

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

No hosted endpoint is listed for PayFit. Salsa has a hosted endpoint at https://api.salsa.dev/api/rest/v1.


## For agents

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

## Other comparisons with PayFit or Salsa

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