# Mostly Good Metrics vs Woopra

> Woopra scores 44.4 (E) to Mostly Good Metrics's 41.7 (E) for analytics queries. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/mostly-good-metrics-vs-woopra
- Markdown: https://www.anchorterminal.com/compare/mostly-good-metrics-vs-woopra.md (~4,150 tokens)
- Site index for agents: https://www.anchorterminal.com/llms.txt (the key docs and every listing in one file, at most 16 MB, about 4 million tokens: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- DNS: dig +short TXT <slug>.grade.anchorterminal.com (the grade as a DNS TXT record, for a sandbox with no HTTP where names still resolve; also top., best.<category>. and <a>.vs.<b>. under the zone, and the same under grade.letme.dev)
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-11-07

Woopra scores 44.4 (E) on agent readiness against Mostly Good Metrics's 41.7 (E), and leads in 2 of 7 scored categories. Mostly Good Metrics leads on security & auth and maintenance & community. Both do analytics queries.

- Mostly Good Metrics: grade E, 41.7/100, rank #1295 of 1510. Markdown https://www.anchorterminal.com/tools/mostly-good-metrics.md · JSON https://www.anchorterminal.com/api/v1/tools/mostly-good-metrics.json
- Woopra: grade E, 44.4/100, rank #1219 of 1510. Markdown https://www.anchorterminal.com/tools/woopra.md · JSON https://www.anchorterminal.com/api/v1/tools/woopra.json
- Best product analytics and experimentation tools for AI agents: https://www.anchorterminal.com/best/product-analytics/index.md
- All 170 product analytics comparisons: https://www.anchorterminal.com/compare/product-analytics/index.md

## Which one, for what

### Mostly Good Metrics (E)

Good for: Indie and small-team apps that want simple funnels and retention an agent can query.

Ahead on:
- Security & auth, 33 against 22
- Maintenance & community, 74 against 9

Also in its favour:
- Free to start without a card

Watch for: Public beta run by one developer, with no named legal entity in the terms

### Woopra (E)

Good for: An agent that reads a company's existing Woopra reports, looks up or edits customer profiles, or exports raw sessions on a schedule.

Ahead on:
- Reliability, 80 against 29
- Transparency & trust, 62 against 45

Watch for: Report endpoints run a report saved in the web app by `report_id`. No endpoint to define a query, funnel or segment was found in the reference


## Why the edge

### Maintenance & community: Mostly Good Metrics +65

- Mostly Good Metrics (74): CLI v0.1.4 was tagged on 16 October 2026 (30). The JavaScript SDK released 0.12.0, 0.13.0 and 0.13.1 between 5 September and 2 October, and the Swift SDK 1.0.0 and 1.0.1 on 2 October (20). A closed service with no public changelog, support by email and GitHub repositories for the SDKs; issue activity wasn't read because the GitHub API refused us for its rate limit (6 of 25). Not in the official MCP registry; official SDKs in five languages are current (10 of 15). CI workflows on the SDK and CLI repositories (8 of 10). 30+20+6+10+8 = 74.
- Woopra (9): The newest dated change found is a commit to the browser tracker on 16 March 2026, and the REST intro page was last edited on 13 March 2026, both more than 180 days before the check (0). No releases or dated changelog entries in the last 90 days (0). No API changelog. Support is by email and in-app, and response times were not checked (3). The browser tracker's last tag is v5.3.0 from 2021, iOS and Android were last committed to in November 2024, and the Node, Python, Java and Rails SDKs in 2017 (4). The Node README carries a Travis CI badge and no current CI was found (2). Total 9.

### Reliability: Woopra +51

- Mostly Good Metrics (29): Graded on the hosted service with the hosted lines. No status page was found (0) and no incident history could be read (5). Ingestion limits are documented per plan (1,000 to 100,000 events a minute and 10,000 to 1,000,000 an hour), but no limit for MCP or query calls was found (12 of 15). 429 with Retry-After in the header and body, and the SDKs queue events and back off. No idempotency or safe-retry guidance for writes (12 of 15). No SLA (0). The press kit calls the product a public beta (0). 0+5+12+12+0+0 = 29.
- Woopra (80): Graded on the REST and HTTP tracking APIs with the hosted lines. Statuspage site at status.woopra.com with three components (20). Its history lists no incidents for August, September or October 2026, the three months shown (30). Limits published with numbers, 300 calls a minute, 600 an hour and 3,000 a day per project (15). A 429 status is documented and tracking calls answer 202 when queued, but no Retry-After, backoff guidance or idempotency key was found (5). No SLA found. The terms promise commercially reasonable efforts (0). The API is version 3.10 with no beta label (10). Total 80.

### Transparency & trust: Woopra +17

- Mostly Good Metrics (45): The service is closed; the SDKs and CLI are MIT. Terms of December 2025 with no legal entity named (18 of 30). The privacy policy and terms agree on raw-event retention for the subscription's life and deletion within 14 days of account deletion; the about page says data is not used to train models. No DPA was found (18 of 30). The legacy X-MGM-Key header is still supported, and no deprecation policy was found (3 of 20). The terms name eight sub-processors with their purpose, without data locations (12 of 20). 18+18+3+12 = 51.
- Woopra (62): Closed service with dated terms that cover the subscription, and MIT SDKs (15). The terms say the customer owns tracking data, and the pricing page states 24 months of retention. The privacy policy excludes end-user data, the DPA is sent only on request, and the GDPR page still cites Privacy Shield while the privacy policy cites the Data Privacy Framework (14). No deprecation policy or dated notices found (0). Nine sub-processors named in the terms with addresses and countries, eight in the USA and Hetzner in Germany. Where customer data is stored is not stated (16). Total 45.

### Security & auth: Mostly Good Metrics +11

- Mostly Good Metrics (33): OAuth 2.0 with PKCE, dynamic client registration and a revocation endpoint for MCP and the CLI; project ingest keys in a Bearer header that can be pinned to origins or app IDs. The only tool scope advertised is mcp:tools, so a connection gets every tool the user can use (24 of 30). Restricted keys and a confirmation step for unrestricted keys in the CLI; no read-only MCP mode or approval for deletes was found (6 of 20). Event properties come from apps and end users and reach the agent, and no prompt-injection guidance was found (3 of 15). No audit log was found (0). No security.txt, disclosure policy or certification was found (0). 24+6+3+0+0 = 33.
- Woopra (22): REST calls use per-user access keys sent by HTTP Basic, with no scopes or rotation guidance found. Tracking calls need only the project name by default, with an optional Secure Tracking secret. Docs examples still show `http://` tracking URLs (15 of 30). The pricing page states group and individual permission controls, but no read-only key or confirmation on `/profile/delete` was found (5). The API returns event and profile text that any caller who knows the project name can write, and no guidance on untrusted content was found (0). No audit log found in the docs (0). No security page, bug bounty or certification was found on the pages read, and security.txt timed out. The privacy policy states Data Privacy Framework certification (2). Total 22.

## Score by category

| Category | Weight | Mostly Good Metrics | Woopra | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 29 | 80 | Woopra +51 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 49 | 45 | Mostly Good Metrics +4 |
| Agent ergonomics | 13% (16.2 this run) | 49 | 45 | Mostly Good Metrics +4 |
| Security & auth | 14% (17.5 this run) | 33 | 22 | Mostly Good Metrics +11 |
| 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) | 74 | 9 | Mostly Good Metrics +65 |
| Transparency & trust | 7% (8.8 this run) | 45 | 62 | Woopra +17 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **41.7 · E** | **44.4 · E** | |

## Facts side by side

| Fact | Mostly Good Metrics | Woopra |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Mostly Good Metrics | Woopra, Inc. |
| Hosted endpoint | `https://app.mostlygoodmetrics.com/mcp` | `https://www.woopra.com/rest/3.10` |
| Transports | HTTP, Streamable HTTP | HTTP |
| Auth | OAuth or key | OAuth or key |
| Pricing | Freemium | Paid |
| x402 | no | no |
| Licence | none | Proprietary service under Woopra's terms of service. The browser tracker and the SDKs on GitHub are MIT, and the Node package is ISC |
| Tools exposed | 53 | none |
| Read-only variant documented | no | no |
| llms.txt | no | yes |
| Last release | 2026-10-16 | 2026-03-16 |
| Terms last updated | 2025-12-01 | 2025-12-10 |
| Privacy policy last updated | 2025-12-01 | 2025-08-01 |
| 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 | not found in the text | not found in the text |
| Terms or service can change without notice | not found in the text | not found in the text |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 81 npm/wk | 415 npm/wk |
| Agent reviews | none | 2.3/5 (4) |

## How the scores have moved

### Mostly Good Metrics

No score change since it was listed.

### Woopra

- -0.1 on 28 October 2026: correction
- +0.1 on 27 October 2026: checklist

## Verdicts

**Mostly Good Metrics.** Mostly Good Metrics lets an agent run ad-hoc funnels, retention and up to ten metric queries per call through a hosted MCP server with OAuth, at prices from $0. It is a public beta built by one developer, with no status page, no named legal entity and no security policy found.

**Woopra.** Woopra's REST API returns saved Trends, Journeys, Retention and Attribution reports, profiles and raw session logs, with published limits of 300 calls a minute and 3,000 a day per project. A report must first be built in the web app, the tracking endpoints accept events without a secret by default, and no changelog or SLA was found.

## Before you call either

### Mostly Good Metrics

1. Use query_metrics for several aggregate questions instead of repeated execute_query calls
2. Pass inline definitions to execute_funnel and execute_retention rather than creating saved objects
3. Confirm with the user before delete, revoke_api_key or stop_experiment calls, since the server doesn't ask
4. Start a fresh agent session after connecting, since a running client may not reload the tool list
5. On 429 from ingestion, wait for Retry-After before resending events

### Woopra

1. Ask the owner to build and save each report in the web app first, then pass the last path segment of its URL as `report_id`
2. Authenticate REST calls with HTTP Basic, using the App ID and Secret Key from the Access Keys tab, against `https://www.woopra.com/rest/3.10/`
3. Stay under 300 calls a minute, 600 an hour and 3,000 a day per project. A 429 carries no documented retry interval, so back off on your own schedule
4. Reuse the `snapshot` ID from the first response when paging with `offset`, or pages past 1,000 records may not agree
5. Send `cookie` or a `cv_` identifier such as `cv_email` on every track call. Without one the event lands on a random profile that can't be identified later
6. When reading `/logs/export`, delete the profile named in each `type: "delete"` line. The following lines log its data again under `new_id`

## Questions

### Which is better for AI agents, Mostly Good Metrics or Woopra?

Woopra scores 44.4 (E) on agent readiness against Mostly Good Metrics's 41.7 (E), and leads in 2 of 7 scored categories. Mostly Good Metrics leads on security & auth and maintenance & community.

### Do Mostly Good Metrics and Woopra need an API key?

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

### Can an agent call Mostly Good Metrics and Woopra without installing anything?

Yes. Mostly Good Metrics has a hosted endpoint at https://app.mostlygoodmetrics.com/mcp and Woopra at https://www.woopra.com/rest/3.10.


## For agents

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

## Other comparisons with Mostly Good Metrics or Woopra

- [Amplitude vs Mostly Good Metrics](https://www.anchorterminal.com/compare/amplitude-vs-mostly-good-metrics.md)
- [Amplitude vs Woopra](https://www.anchorterminal.com/compare/amplitude-vs-woopra.md)
- [Basedash MCP vs Mostly Good Metrics](https://www.anchorterminal.com/compare/basedash-mcp-vs-mostly-good-metrics.md)
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- [Mixpanel vs Woopra](https://www.anchorterminal.com/compare/mixpanel-vs-woopra.md)
- [Mostly Good Metrics vs OpenPanel](https://www.anchorterminal.com/compare/mostly-good-metrics-vs-openpanel.md)
- [Mostly Good Metrics vs Optimizely Experimentation](https://www.anchorterminal.com/compare/mostly-good-metrics-vs-optimizely.md)
- [Mostly Good Metrics vs Pendo](https://www.anchorterminal.com/compare/mostly-good-metrics-vs-pendo.md)
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- [Mostly Good Metrics vs RudderStack MCP](https://www.anchorterminal.com/compare/mostly-good-metrics-vs-rudderstack-mcp.md)
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- [OpenPanel vs Woopra](https://www.anchorterminal.com/compare/openpanel-vs-woopra.md)
- [Optimizely Experimentation vs Woopra](https://www.anchorterminal.com/compare/optimizely-vs-woopra.md)
- [Pendo vs Woopra](https://www.anchorterminal.com/compare/pendo-vs-woopra.md)
- [PostHog vs Woopra](https://www.anchorterminal.com/compare/posthog-vs-woopra.md)
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- [Harness Feature Management & Experimentation vs Woopra](https://www.anchorterminal.com/compare/harness-fme-vs-woopra.md)
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- [Heap vs Woopra](https://www.anchorterminal.com/compare/heap-vs-woopra.md)
- [RudderStack MCP vs Woopra](https://www.anchorterminal.com/compare/rudderstack-mcp-vs-woopra.md)
- [Flagsmith vs Mostly Good Metrics](https://www.anchorterminal.com/compare/flagsmith-vs-mostly-good-metrics.md)
- [GrowthBook vs Mostly Good Metrics](https://www.anchorterminal.com/compare/growthbook-vs-mostly-good-metrics.md)
- [Harness Feature Management & Experimentation vs Mostly Good Metrics](https://www.anchorterminal.com/compare/harness-fme-vs-mostly-good-metrics.md)
- [LaunchDarkly vs Mostly Good Metrics](https://www.anchorterminal.com/compare/launchdarkly-vs-mostly-good-metrics.md)

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Query this catalogue directly over MCP: https://www.anchorterminal.com/mcp (Streamable HTTP, no key). How: https://www.anchorterminal.com/agents/#mcp