# LinkedIn Marketing APIs vs Meta Marketing API

> Meta Marketing API scores 67.7 (B) on agent readiness against LinkedIn Marketing APIs's 62.4 (B), and leads in 4 of 7 scored categories. LinkedIn Marketing APIs leads on security & auth and transparency & trust. Both do ads reporting. Category scores, facts, verdicts and agent…

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- Updated: 2026-10-08

Meta Marketing API scores 67.7 (B) on agent readiness against LinkedIn Marketing APIs's 62.4 (B), and leads in 4 of 7 scored categories. LinkedIn Marketing APIs leads on security & auth and transparency & trust. Both do ads reporting.

- LinkedIn Marketing APIs: grade B, 62.4/100, rank #304 of 629. Markdown https://www.anchorterminal.com/tools/linkedin-marketing-api.md · JSON https://www.anchorterminal.com/api/v1/tools/linkedin-marketing-api.json
- Meta Marketing API: grade B, 67.7/100, rank #187 of 629. Markdown https://www.anchorterminal.com/tools/meta-marketing-api.md · JSON https://www.anchorterminal.com/api/v1/tools/meta-marketing-api.json

## Which one, for what

### LinkedIn Marketing APIs (B)

Good for: An agent that reports on and manages LinkedIn campaigns for accounts its operator administers, especially read-only reporting, which has no account limit on Development tier.

Ahead on:
- Security & auth, 66 against 61
- Transparency & trust, 84 against 68

Watch for: Standard rate limits are not published. An app sees its limit in the Developer Portal only after calling the endpoint

### Meta Marketing API (B)

Good for: The direct route to Facebook, Instagram, Messenger, WhatsApp and Threads advertising for reporting, campaign and budget changes, audiences and creatives.

Ahead on:
- Reliability, 80 against 66
- Schema & documentation, 76 against 66
- Agent ergonomics, 77 against 63
- Maintenance & community, 74 against 64

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

Watch for: Default Limited access allows a score of 60 per ad account (read 1, write 3) and blocks for 300 seconds at the limit


## Score by category

| Category | Weight | LinkedIn Marketing APIs | Meta Marketing API | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 66 | 80 | Meta Marketing API +14 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 66 | 76 | Meta Marketing API +10 |
| Agent ergonomics | 13% (16.2 this run) | 63 | 77 | Meta Marketing API +14 |
| Security & auth | 14% (17.5 this run) | 66 | 61 | LinkedIn Marketing APIs +5 |
| Payments & pricing | 10% (12.5 this run) | 30 | 30 | even |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 64 | 74 | Meta Marketing API +10 |
| Transparency & trust | 7% (8.8 this run) | 84 | 68 | LinkedIn Marketing APIs +16 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **62.4 · B** | **67.7 · B** | |

## Facts side by side

| Fact | LinkedIn Marketing APIs | Meta Marketing API |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | LinkedIn Corporation | Meta Platforms, Inc. |
| Hosted endpoint | no (local only) | `https://graph.facebook.com` |
| Transports | HTTP | HTTP |
| Auth | OAuth | OAuth |
| Pricing | Free | Free |
| x402 | no | no |
| Licence | Proprietary service under the LinkedIn API terms of use and the Marketing API terms. The beta Python and JavaScript clients carry LinkedIn's API development software licence | Proprietary service under the Meta Platform Terms. The Business SDKs and the codegen specs on GitHub carry Meta's own platform licence, which allows use only with Meta's APIs |
| Read-only variant documented | yes | yes |
| llms.txt | no | yes |
| Last release | 2026-09-16 | 2026-09-21 |
| Terms last updated | couldn't be read | 2026-02-03 |
| Privacy policy last updated | couldn't be read | couldn't be read |
| Customer content may train models | couldn't be read | not found in the text |
| Terms restrict automated access | couldn't be read | not found in the text |
| Terms restrict benchmarking | couldn't be read | not found in the text |
| Terms or service can change without notice | couldn't be read | not found in the text |
| Arbitration or class-action waiver | couldn't be read | not found in the text |
| Popularity | 25k npm/wk, 386k PyPI/wk | 1.6k stars, 501k npm/wk, 1.1M PyPI/wk |

## Verdicts

**LinkedIn Marketing APIs.** Monthly API versions are each supported for at least a year, with dated sunsets and a changelog, and a test ad account lets an agent create campaigns that are never served or billed. Access needs LinkedIn's approval and a member's OAuth consent, standard rate limits are not published, and no OpenAPI specification was found.

**Meta Marketing API.** Reporting, campaign, budget, audience and creative endpoints sit behind `ads_read` and `ads_management` scopes, with a `validate_only` option and sandbox ad accounts for checking a change before it spends. New apps are held to a score of 60 per ad account, with a 300-second block at the limit, and the documented requests pass the access token as a parameter.

## Before you call either

### LinkedIn Marketing APIs

1. Send `Linkedin-Version: YYYYMM` and `X-Restli-Protocol-Version: 2.0.0` on every call. A missing or sunset version returns an error (426 for a deprecated one)
2. Create one test ad account with `"test": true` and build there first. Its creatives are auto-rejected and never billed, and it returns no reporting data
3. Create campaigns as DRAFT or PAUSED and check `servingStatuses` before activating. Some validation is postponed until activation
4. Pass `fields=` on adAnalytics. Responses stop at 15,000 elements and the endpoint throttles at 45 million metric values per 5 minutes
5. On Development tier, map each ad account to the app in the Developer Portal. Edits are limited to five accounts

### Meta Marketing API

1. Put a version in every path, such as /v26.0/act_<AD_ACCOUNT_ID>/campaigns. Unversioned Marketing API calls fail
2. Create campaigns, ad sets and ads with `status=PAUSED`, and send `execution_options=["validate_only"]` first to test a write without making it
3. Ask for `ads_read` alone when the task is reporting. `ads_management` can change budgets and activate spend
4. Read `X-Business-Use-Case-Usage` and `X-Ad-Account-Usage` after each call and wait for `estimated_time_to_regain_access` on errors 17, 613 and 80004
5. Change an ad set budget at most four times an hour and an account spending limit at most ten times a day

## Questions

### Which is better for AI agents, LinkedIn Marketing APIs or Meta Marketing API?

Meta Marketing API scores 67.7 (B) on agent readiness against LinkedIn Marketing APIs's 62.4 (B), and leads in 4 of 7 scored categories. LinkedIn Marketing APIs leads on security & auth and transparency & trust.

### Do LinkedIn Marketing APIs and Meta Marketing API need an API key?

Both use an OAuth sign-in.

### Can an agent call LinkedIn Marketing APIs and Meta Marketing API without installing anything?

No hosted endpoint is listed for LinkedIn Marketing APIs. Meta Marketing API has a hosted endpoint at https://graph.facebook.com.


## For agents

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

## Other comparisons with LinkedIn Marketing APIs or Meta Marketing API

- [Amazon Ads API vs LinkedIn Marketing APIs](https://www.anchorterminal.com/compare/amazon-ads-api-vs-linkedin-marketing-api.md)
- [Amazon Ads API vs Meta Marketing API](https://www.anchorterminal.com/compare/amazon-ads-api-vs-meta-marketing-api.md)
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- [Meta Marketing API vs Microsoft Advertising API](https://www.anchorterminal.com/compare/meta-marketing-api-vs-microsoft-advertising-api.md)