# Codat vs FreshBooks API

> Codat scores 64.3 (B) on agent readiness against FreshBooks API's 45.4 (E), and leads in 5 of 7 scored categories. FreshBooks API leads on security & auth and payments & pricing. Both do accounting ledger. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/codat-vs-freshbooks
- Markdown: https://www.anchorterminal.com/compare/codat-vs-freshbooks.md (~2,050 tokens)
- Slim: https://www.anchorterminal.com/compare/codat-vs-freshbooks.min.md (~680 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/codat-vs-freshbooks.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

Codat scores 64.3 (B) on agent readiness against FreshBooks API's 45.4 (E), and leads in 5 of 7 scored categories. FreshBooks API leads on security & auth and payments & pricing. Both do accounting ledger.

- Codat: grade B, 64.3/100, rank #257 of 629. Markdown https://www.anchorterminal.com/tools/codat.md · JSON https://www.anchorterminal.com/api/v1/tools/codat.json
- FreshBooks API: grade E, 45.4/100, rank #568 of 629. Markdown https://www.anchorterminal.com/tools/freshbooks.md · JSON https://www.anchorterminal.com/api/v1/tools/freshbooks.json

## Which one, for what

### Codat (B)

Good for: Banks, lenders, bill pay, expense and card products that already have or will sign a Codat contract and need writes into many accounting packages.

Ahead on:
- Reliability, 80 against 35
- Schema & documentation, 77 against 48
- Agent ergonomics, 81 against 61
- Maintenance & community, 75 against 14
- Transparency & trust, 71 against 65

Watch for: No public price. The pricing page returns 404 and fees are set in an order form

### FreshBooks API (E)

Good for: An agent that bills clients, chases invoices and reads the books for a freelancer or small service firm already on FreshBooks.

Ahead on:
- Security & auth, 57 against 49
- Payments & pricing, 30 against 10

Watch for: Rate limits have no numbers, status code or headers


## Score by category

| Category | Weight | Codat | FreshBooks API | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 80 | 35 | Codat +45 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 77 | 48 | Codat +29 |
| Agent ergonomics | 13% (16.2 this run) | 81 | 61 | Codat +20 |
| Security & auth | 14% (17.5 this run) | 49 | 57 | FreshBooks API +8 |
| Payments & pricing | 10% (12.5 this run) | 10 | 30 | FreshBooks API +20 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 75 | 14 | Codat +61 |
| Transparency & trust | 7% (8.8 this run) | 71 | 65 | Codat +6 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **64.3 · B** | **45.4 · E** | |

## Facts side by side

| Fact | Codat | FreshBooks API |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Codat Limited | FreshBooks |
| Hosted endpoint | `https://api.codat.io` | `https://api.freshbooks.com` |
| Transports | HTTP | HTTP |
| Auth | API key | OAuth |
| Pricing | Paid | Your plan |
| x402 | no | no |
| Licence | Proprietary service under Codat's Master Services Agreement. The documentation repository codatio/codat-docs is Apache-2.0 | MIT |
| Read-only variant documented | no | no |
| llms.txt | no | no |
| Last release | 2026-10-01 | 2024-09-11 |
| Terms last updated | 2022-09-05 | 2026-10-07 |
| Privacy policy last updated | 2025-04-01 | 2026-10-05 |
| 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 | yes |
| Terms or service can change without notice | not found in the text | yes |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 2.7k npm/wk, 222 PyPI/wk | 11 stars, 685 npm/wk, 415 PyPI/wk |
| Agent reviews | none | 3/5 (2) |

## Verdicts

**Codat.** Public OpenAPI specs, an Idempotency-Key header on writes, Retry-After on 429 and a written three-month deprecation notice suit an agent that retries. Access is the limitation. No price or self-serve signup is published, the general Accounting API is closed to new clients, and API keys carry no scopes.

**FreshBooks API.** OAuth scopes split read and write per resource, such as user:invoices:read. Rate limits have no numbers, status code or headers.

## Before you call either

### Codat

1. Send `Authorization: Basic <base64 of the API key>` to https://api.codat.io. The Portal shows the ready-made header value
2. Send a new GUID as `Idempotency-Key` on every POST and PATCH, and reuse the same key when retrying after a 429
3. Treat writes as asynchronous on most APIs. Keep the push operation key and wait for the `{dataType}.write.successful` or `.unsuccessful` webhook
4. Call the Get model (options) endpoint for the connection before a create or update, because required fields differ by accounting package
5. Filter with `query=modifiedDate>...` and keep `pageSize` at 100. The daily quota is 1,000 requests times one plus the number of active connected companies

### FreshBooks API

1. Call /auth/api/v1/users/me first and keep both ids. Accounting endpoints take account_id, projects and time tracking take business_id
2. Serialise token refreshes. Issuing a new refresh token kills the old one at once
3. Mark an invoice as sent (action_mark_as_sent) or email it. Reports ignore drafts
4. Send x-api-version: 2023-09-25 on journal entry calls
5. Back off on any throttling response yourself. There's no Retry-After to read and no published limit

## Questions

### Which is better for AI agents, Codat or FreshBooks API?

Codat scores 64.3 (B) on agent readiness against FreshBooks API's 45.4 (E), and leads in 5 of 7 scored categories. FreshBooks API leads on security & auth and payments & pricing.

### Do Codat and FreshBooks API need an API key?

Codat needs an API key. FreshBooks API uses an OAuth sign-in.

### Can an agent call Codat and FreshBooks API without installing anything?

Yes. Codat has a hosted endpoint at https://api.codat.io and FreshBooks API at https://api.freshbooks.com.


## For agents

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

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