Amplitude vs RudderStack MCP

Amplitude 75

Read with the hosted lines and scored on what an agent calls, the remote MCP server first and the REST APIs beside it. status.amplitude.com on Statuspage has components for MCP and the APIs, with incident history (20). Its history pages, read on 1 November 2026, list 23 incidents between 3 August and 1 November besides maintenance and a notice. Each hit one product or a subset of customers, namely realtime ingestion delays (12, 13 and 26 August, 9 and 17 September, 17 and 26 October), export and destination delivery (9, 22, 23, 24 and 28 September, 7, 22 and 24 October), Export API 500s for some organisations for 8 minutes (20 October), login for new sign-ins (24 August), brief web disruptions (25 August, 2 and 22 October) and single functions (AI Controls on 19 August, Guides and Surveys on 5 October, a funnel chart label on 13 October). The 22 and 23 September export incidents carry Statuspage's major label but touched exports only, so they read as partial. Minor only (20 of 30). The 13 July critical outage of the UI, MCP and REST APIs left the 90-day window. The 7 October count came from the status API path, which robots.txt disallows, and is replaced by the history pages. Rate limits with numbers for the Dashboard REST API (5 concurrent, 108,000 cost an hour), Experiment Management (100 a second, 100,000 a day) and HTTP V2 (30 events a second per user or device), and none found for MCP or the Developer API (12 of 15). HTTP V2 says to pause 30 seconds on 429 and deduplicates on insert_id, and the Developer API returns retryable and retry_after_seconds and accepts Idempotency-Key on some operations. No guidance for MCP (13 of 15). No SLA found, and the terms disclaim uninterrupted service (0). The MCP server carries no beta label and is 1.0.0 in the official registry. The Developer API's spec is version 0.1.0 (10). 20 + 20 + 12 + 13 + 0 + 10 = 75.

RudderStack MCP 45

Statuspage at status.rudderstack.com with regional components and none for MCP (15). Since August the history shows an EU ingestion issue, increased US latency, a Python transformations issue, free-tier processing delays and scheduled maintenance (20, minor incidents). No MCP rate limits found (0). No retry guidance for the MCP server found (0). No SLA found in the pages read (0). Not labelled beta (10). 15 + 20 + 0 + 0 + 0 + 10 = 45.

Amplitude 79

Closed service with terms effective 21 July 2026. The SDKs, CLI and marketplace plugins are MIT (15). The DPA of 4 June 2024 promises destruction within 90 days of termination and use only to run the service, while the terms let Amplitude apply machine learning to customer data to improve the services and delete data at its discretion after termination. The AI docs say data isn't used for model training (20 of 30). A written SDK lifecycle with at least 12 months of maintenance for a superseded major version. No deprecation policy for the REST APIs or MCP tools found (10 of 20). Sub-processor list updated 13 May 2026 with US and EU data centre locations and 10 business days' notice of additions under the DPA (18 of 20).

RudderStack MCP 51

The server's source is closed; the repository's MIT licence covers only its docs and metadata. Terms in a master service agreement naming RudderStack, Inc. (15). Privacy policy read, retention given by purpose, not as periods (12 of 30). No deprecation policy for the MCP server (5 of 20). Subprocessors not found in the pages read (5 of 20). The MCP docs say live events, schemas, profile artifacts, transformation code and audit data stay within the workspace view. 15 + 12 + 5 + 5 = 37.

Amplitude 72

44 tools is over the 30 line (5), with 10 added back for progressive discovery, which starts with four tools and loads schemas on demand, and a subset of about 25 for ChatGPT (15 of 25). Cursor and limit pagination on the Developer API (default 50, maximum 200), the Experiment Management API and the data warehouse tools, and filters on search and replay tools. The MCP page warns that hosts may truncate large charts (17 of 20). RFC 9457 errors with error_code, retryable and field errors on the Developer API and detailed 400 and 429 bodies on HTTP V2. MCP error shapes unread (15 of 20). Idempotency-Key and dry_run on some Developer API operations, insert_id on events, two-step deletes and optimistic concurrency on dashboards and notebooks. We couldn't see whether tools carry readOnlyHint or destructiveHint (13 of 20). Official SDKs in many languages cover ingestion and experiment evaluation, not queries, and the amp CLI prints compact JSON when piped (12 of 15).

RudderStack MCP 52

62 tools (5), plus a separately controlled read-only web surface (5). Filters on some list tools, not documented generally (8 of 20). One documented error (5 of 20). Read, Sensitive execution and Write classes, with Write tools to be confirmed by the client; annotations not read (14 of 20). One URL with OAuth and RudderStack SDKs in many languages (15). 10 + 8 + 5 + 14 + 15 = 52.

Amplitude 74

The MCP server takes OAuth 2.0 with PKCE S256, dynamic client registration, a revocation endpoint and mcp:read and mcp:write scopes, and the Developer API takes scoped tokens. The older REST APIs still use a project API key and secret key, which aren't scoped (28 of 30). Two role actions, Use MCP (read) and Use MCP (write), are enforced per project on each call, an admin can switch MCP off for the organisation, deletes need a second confirmed call and cohort syncs preview first. MCP is on by default and three standard roles include write (17 of 20). Session replays, feedback comments and user properties are untrusted content, and we found only a disclaimer about model outputs, no injection guidance for hosts (2 of 15). An organisation audit log with 90 days of entries and an API, whose event list doesn't name MCP tool calls (9 of 15). security.txt valid to 31 December 2028, SOC 2 Type II, ISO 27001, 27017 and 27018 on the trust portal and a bug bounty that is private (18 of 20).

RudderStack MCP 62

OAuth with PKCE and dynamic registration, scopes not published (22 of 30). Access classes, a read-only surface and confirmation advice for writes (16 of 20). Selected sensitive fields in event payloads and errors are redacted or hashed before they reach the model, but event payloads are still untrusted text (8 of 15). No audit log of MCP calls found (0). SOC 2 Type 2, HIPAA with a BAA, and a SECURITY.md with a private reporting address; no security.txt (404) (16 of 20). 22 + 16 + 8 + 0 + 16 = 62.

Amplitude 72

The Developer API has an OpenAPI 3.1.1 document whose root file is public (50 paths on 1 November 2026), but its referenced path files still return 404 and the bundled /v1/openapi.json needs a token. The older REST APIs have no spec, and we couldn't read the MCP tool schemas without an Amplitude sign-in (15 of 25). llms.txt, five product feeds, llms-full.txt and Markdown for every docs page (10). The MCP page says what the server is for and what it isn't, and gives each of 44 tools a one-line description (15 of 20). REST parameter tables are typed with required fields, and the Developer API documents scopes, limits and formats. MCP input schemas unread (9 of 15). Request and response examples throughout the REST docs and error tables per API (13 of 15). Dated release notes at amplitude.com/releases and versioned API paths, but the registry entry has stayed at 1.0.0 since October 2025 while tools were consolidated on 17 August 2026 (10 of 15).

RudderStack MCP 66

The public repository's docs/tools.md lists 62 tools with an access class for each; JSON Schemas not read without a session (15 of 25). llms.txt (10). Every tool has a one-line purpose and a Read, Sensitive execution or Write class (15 of 20). Inputs not verifiable (5 of 15). Example prompts and a documented 'workspace_id is required' error (6 of 15). Versioned in the registry (0.43.1, 6 November) and dated release notes (15). 15 + 10 + 15 + 5 + 6 + 15 = 66.