# Amplitude vs LaunchDarkly

> LaunchDarkly scores 69.2 (B) on agent readiness against Amplitude's 66.2 (B), and leads in 4 of 7 scored categories. Amplitude leads on security & auth. Both do analytics flags. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/amplitude-vs-launchdarkly
- Markdown: https://www.anchorterminal.com/compare/amplitude-vs-launchdarkly.md (~2,200 tokens)
- Slim: https://www.anchorterminal.com/compare/amplitude-vs-launchdarkly.min.md (~730 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/amplitude-vs-launchdarkly.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

LaunchDarkly scores 69.2 (B) on agent readiness against Amplitude's 66.2 (B), and leads in 4 of 7 scored categories. Amplitude leads on security & auth. Both do analytics flags.

- Amplitude: grade B, 66.2/100, rank #223 of 629. Markdown https://www.anchorterminal.com/tools/amplitude.md · JSON https://www.anchorterminal.com/api/v1/tools/amplitude.json
- LaunchDarkly: grade B, 69.2/100, rank #155 of 629. Markdown https://www.anchorterminal.com/tools/launchdarkly.md · JSON https://www.anchorterminal.com/api/v1/tools/launchdarkly.json

## Which one, for what

### Amplitude (B)

Good for: A team already on Amplitude that wants an agent to query charts, funnels, retention and experiment results, edit dashboards and manage the tracking plan under its own permissions.

Ahead on:
- Security & auth, 74 against 66

Watch for: No rate limit for the MCP server or the Developer API was found in the reviewed documentation

### LaunchDarkly (B)

Good for: An agent that creates and targets feature flags, runs rollouts and experiments, reads experiment results and cleans up stale flags.

Ahead on:
- Schema & documentation, 89 against 72
- Payments & pricing, 40 against 30

Also in its favour:
- Runs on your own machine

Watch for: The hosted MCP server lists 141 tools, and no tool filter for it was found in the reviewed documentation


## Score by category

| Category | Weight | Amplitude | LaunchDarkly | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 60 | 64 | LaunchDarkly +4 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 72 | 89 | LaunchDarkly +17 |
| Agent ergonomics | 13% (16.2 this run) | 72 | 69 | Amplitude +3 |
| Security & auth | 14% (17.5 this run) | 74 | 66 | Amplitude +8 |
| Payments & pricing | 10% (12.5 this run) | 30 | 40 | LaunchDarkly +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 83 | 82 | Amplitude +1 |
| Transparency & trust | 7% (8.8 this run) | 78 | 80 | LaunchDarkly +2 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **66.2 · B** | **69.2 · B** | |

## Facts side by side

| Fact | Amplitude | LaunchDarkly |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Amplitude, Inc. | Catamorphic, Co. (dba LaunchDarkly) |
| Hosted endpoint | `https://mcp.amplitude.com/mcp` | `https://mcp.launchdarkly.com/mcp/launchdarkly` |
| Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP, stdio |
| Auth | OAuth or key | OAuth or key |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | Proprietary service under Amplitude's terms of service. The SDKs, the `amp` CLI and the MCP marketplace plugins on GitHub and npm are MIT | Proprietary service under LaunchDarkly's terms. The local MCP server is MIT and the ldcli CLI is Apache-2.0 |
| Tools exposed | 45 | 141 |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| MCP registry | `com.amplitude/mcp-server` | not listed |
| Last release | 2026-10-02 | 2026-10-06 |
| Terms last updated | 2026-07-21 | 2025-09-08 |
| Privacy policy last updated | 2026-08-31 | 2025-04-08 |
| Customer content may train models | yes | not found in the text |
| Terms restrict automated access | not found in the text | not found in the text |
| Terms restrict benchmarking | yes | yes |
| Terms or service can change without notice | yes | not found in the text |
| Arbitration or class-action waiver | yes | not found in the text |
| Popularity | 1.3M npm/wk, 1.8M PyPI/wk | 3.3M npm/wk, 2.2M PyPI/wk |

## Verdicts

**Amplitude.** The remote MCP server covers queries, funnels, retention, experiments and flags under OAuth with PKCE, read and write scopes and per-project role actions, and the Free plan needs no card. No MCP rate limits or SLA were found, and status.amplitude.com records a critical outage of the UI, MCP and REST APIs on 13 July 2026.

**LaunchDarkly.** LaunchDarkly suits agents that manage feature flags, rollouts and experiments. The hosted MCP server uses OAuth with dynamic client registration and marks its tools read-only or destructive, and the Developer plan is free without a card. The server lists 141 tools, numeric rate limits are unpublished, and the web application was unavailable for over an hour on 10 July 2026.

## Before you call either

### Amplitude

1. Connect to https://mcp.amplitude.com/mcp, or https://mcp.eu.amplitude.com/mcp for EU projects. The client must support streaming HTTP and OAuth, since API keys aren't accepted
2. Append `?discovery=progressive` to load tool schemas on demand, then call `get_amplitude_context` first to pick the project and read its AI context
3. Ask an admin for a role with only Use MCP (read) on the projects you need. Tools stay listed and fail at call time when the role lacks the action
4. Send events through the HTTP V2 API with an `insert_id` on each one. On 429, pause that user or device for 30 seconds before retrying
5. Budget Dashboard REST queries by cost (days times conditions times chart cost), within 108,000 an hour and 5 concurrent requests per project

### LaunchDarkly

1. Connect to https://mcp.launchdarkly.com/mcp/launchdarkly over streamable HTTP with OAuth. On the EU or federal instance run the local `@launchdarkly/mcp-server` with `--server-url`
2. Authorise with a Reader role or the `reader` scope unless the task writes. A 403 after consent means the member's role lacks access
3. Send `LD-API-Version: 20240415` on every REST call, and `LD-API-Version: beta` for beta resources, which answer 403 without it
4. Read `X-Ratelimit-Global-Remaining`, `X-Ratelimit-Route-Remaining` and `X-Ratelimit-Reset` on each response, and wait `Retry-After` seconds on an IP limit
5. Send `Content-Type: application/json; domain-model=launchdarkly.semanticpatch` for semantic patches, or the body is read as JSON patch and answers 400

## Questions

### Which is better for AI agents, Amplitude or LaunchDarkly?

LaunchDarkly scores 69.2 (B) on agent readiness against Amplitude's 66.2 (B), and leads in 4 of 7 scored categories. Amplitude leads on security & auth.

### Do Amplitude and LaunchDarkly need an API key?

Both take an API key or an OAuth sign-in.

### Can an agent call Amplitude and LaunchDarkly without installing anything?

Yes. Amplitude has a hosted endpoint at https://mcp.amplitude.com/mcp and LaunchDarkly at https://mcp.launchdarkly.com/mcp/launchdarkly.


## For agents

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

## Other comparisons with Amplitude or LaunchDarkly

- [Amplitude vs GrowthBook](https://www.anchorterminal.com/compare/amplitude-vs-growthbook.md)
- [Amplitude vs Mixpanel](https://www.anchorterminal.com/compare/amplitude-vs-mixpanel.md)
- [Amplitude vs Pendo](https://www.anchorterminal.com/compare/amplitude-vs-pendo.md)
- [Amplitude vs PostHog](https://www.anchorterminal.com/compare/amplitude-vs-posthog.md)
- [Amplitude vs Statsig](https://www.anchorterminal.com/compare/amplitude-vs-statsig.md)
- [Amplitude vs Heap](https://www.anchorterminal.com/compare/amplitude-vs-heap.md)
- [GrowthBook vs LaunchDarkly](https://www.anchorterminal.com/compare/growthbook-vs-launchdarkly.md)
- [LaunchDarkly vs Mixpanel](https://www.anchorterminal.com/compare/launchdarkly-vs-mixpanel.md)
- [LaunchDarkly vs PostHog](https://www.anchorterminal.com/compare/launchdarkly-vs-posthog.md)
- [LaunchDarkly vs Statsig](https://www.anchorterminal.com/compare/launchdarkly-vs-statsig.md)