# Amplitude vs Statsig

> Statsig scores 72.3 (BB) on agent readiness against Amplitude's 66.2 (B), and leads in 3 of 7 scored categories. Both do analytics query. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/amplitude-vs-statsig
- Markdown: https://www.anchorterminal.com/compare/amplitude-vs-statsig.md (~2,200 tokens)
- Slim: https://www.anchorterminal.com/compare/amplitude-vs-statsig.min.md (~630 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/amplitude-vs-statsig.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

Statsig scores 72.3 (BB) on agent readiness against Amplitude's 66.2 (B), and leads in 3 of 7 scored categories. Both do analytics query.

- Amplitude: grade B, 66.2/100, rank #243 of 722. Markdown https://www.anchorterminal.com/tools/amplitude.md · JSON https://www.anchorterminal.com/api/v1/tools/amplitude.json
- Statsig: grade BB, 72.3/100, rank #94 of 722. Markdown https://www.anchorterminal.com/tools/statsig.md · JSON https://www.anchorterminal.com/api/v1/tools/statsig.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.

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

### Statsig (BB)

Good for: An agent that creates, updates and cleans up feature gates, dynamic configs and experiments, and reads experiment results and audit history.

Ahead on:
- Reliability, 79 against 60
- Schema & documentation, 82 against 72
- Payments & pricing, 40 against 30

Also in its favour:
- Agent-ready, a grade of BB or better

Watch for: Console API errors carry only `status` and `message`, and the spec documents no 429 response


## Score by category

| Category | Weight | Amplitude | Statsig | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 60 | 79 | Statsig +19 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 72 | 82 | Statsig +10 |
| Agent ergonomics | 13% (16.2 this run) | 72 | 71 | Amplitude +1 |
| Security & auth | 14% (17.5 this run) | 74 | 74 | even |
| Payments & pricing | 10% (12.5 this run) | 30 | 40 | Statsig +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 83 | 81 | Amplitude +2 |
| Transparency & trust | 7% (8.8 this run) | 78 | 75 | Amplitude +3 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **66.2 · B** | **72.3 · BB** | |

## Facts side by side

| Fact | Amplitude | Statsig |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Amplitude, Inc. | Amplitude, Inc. |
| Hosted endpoint | `https://mcp.amplitude.com/mcp` | `https://api.statsig.com/v3/mcp` |
| Transports | HTTP, Streamable HTTP | HTTP, Streamable HTTP |
| 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 hosted service under Statsig's self-service or enterprise terms. The SDKs and the agent skills repository on GitHub are ISC |
| Tools exposed | 45 | 18 |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| MCP registry | `com.amplitude/mcp-server` | `com.statsig/statsig-mcp-server` |
| Last release | 2026-10-02 | 2026-09-28 |
| Terms last updated | 2026-07-21 | 2025-08-04 |
| Privacy policy last updated | 2026-08-31 | 2026-08-31 |
| 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 | yes |
| Arbitration or class-action waiver | yes | yes |
| Popularity | 1.3M npm/wk, 1.8M PyPI/wk | 4.2M npm/wk, 894k 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.

**Statsig.** Statsig suits agents that manage feature gates and experiments and read their results. Its MCP server has 18 default tools, OAuth, read-only access by project and role, and a confirmation on updates. Errors carry only a status and a message, no idempotency keys were found, and the privacy notice is Amplitude's and doesn't name Statsig.

## 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

### Statsig

1. Connect to https://api.statsig.com/v3/mcp. The official MCP registry entry still lists the V1 URL, which has 93 tools
2. Call `get_context` first to learn the project, your permissions and the review settings
3. Read the resource before `gate_update`, `experiment_update` or `dynamic_config_update`. They replace the whole resource, so resend every field you want kept
4. Use `discover_tools` for partial edits, and fetch a fresh `operationHandle` when one expires
5. On a 429 slow down and back off with jitter. Rejected attempts count towards the quota of about 1,800 mutations per 15 minutes

## Questions

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

Statsig scores 72.3 (BB) on agent readiness against Amplitude's 66.2 (B), and leads in 3 of 7 scored categories.

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

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

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

Yes. Amplitude has a hosted endpoint at https://mcp.amplitude.com/mcp and Statsig at https://api.statsig.com/v3/mcp.


## For agents

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

## Other comparisons with Amplitude or Statsig

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