Service Level Agreement
MRC Data API — MEACHEAL Research Center — Effective April 7, 2026
1. Scope
This Service Level Agreement ("SLA") applies to the MRC Data API provided by MEACHEAL Research Center at https://api.meacheal.ai. It defines the service commitments for availability, performance, support, and data freshness. This SLA applies to all paid tiers (Pro and Enterprise). Free and Demo tier users receive best-effort service without SLA guarantees.
2. Uptime Commitment
We commit to a monthly uptime of 99.5% for the MRC Data API, measured as the percentage of total minutes in a calendar month during which the API is available and responding to valid requests.
Uptime is calculated as:
Uptime % = ((Total Minutes - Downtime Minutes) / Total Minutes) x 100
A minute is counted as downtime if more than 5% of valid API requests during that minute result in server errors (HTTP 5xx) or timeouts (no response within 30 seconds).
3. Scheduled Maintenance
Scheduled maintenance windows are necessary for database updates, security patches, and infrastructure upgrades.
- Primary window: Tuesdays, 02:00 – 06:00 UTC
- Frequency: Up to twice per month
- Advance notice: At least 72 hours via email to registered API key holders
- Duration: Typically under 30 minutes; maximum 4 hours
Scheduled maintenance within the announced window is excluded from downtime calculations. Emergency maintenance (security patches) may occur outside the window with as much notice as possible.
4. Response Time Targets
The following response time targets apply to standard API requests under normal load conditions:
| Metric | Target |
|---|---|
| p50 (median) response time | < 200ms |
| p95 response time | < 500ms |
| p99 response time | < 1,000ms |
Response time is measured from request receipt at our edge to response dispatch. Network latency between the client and our servers is not included. Cluster comparison requests involving 5+ clusters may exceed these targets.
5. Support Response Times
Support is available via email at api@meacheal.ai. Response times vary by tier and severity.
| Tier | Critical (API down) | High (functionality impaired) | Normal (questions, requests) |
|---|---|---|---|
| Demo / Free | Best effort | Best effort | Best effort |
| Pro | 4 hours | 12 hours | 24 hours |
| Enterprise | 1 hour | 4 hours | 4 hours |
Response times are measured during business hours (Mon–Fri, 09:00–18:00 CST / UTC+8), except for Critical severity on the Enterprise tier, which is 24/7.
6. Incident Communication
During service disruptions, we will communicate through the following channels:
- Status page: Real-time status and incident updates will be posted to our status page.
- Email: Pro and Enterprise users receive email notifications for incidents affecting their service.
- Post-incident report: For incidents lasting more than 30 minutes, we will publish a post-incident report within 5 business days, including root cause analysis and remediation steps.
7. Credit Policy
If we fail to meet the monthly uptime commitment, eligible paid-tier customers may request service credits according to the following schedule:
| Monthly Uptime | Credit (% of monthly fee) |
|---|---|
| 99.0% – 99.4% | 10% |
| 95.0% – 98.9% | 25% |
| Below 95.0% | 50% |
To request a credit, email api@meacheal.ai within 30 days of the affected month. Credits are applied to future invoices and are not redeemable for cash. The maximum credit for any month is 50% of that month's fee.
8. Data Freshness
The supply chain data served by the MRC Data API is updated on the following schedule:
- Supplier profiles: Monthly review and update cycle
- Fabric specifications: Updated when new lab test results are available (typically monthly)
- Industrial cluster data: Quarterly updates
- Discrepancy analysis: Recalculated with each data update
The /v1/stats endpoint returns the last_updated timestamp for the database. Major data updates are communicated via email to all registered users.
9. Exclusions
This SLA does not apply to service issues caused by:
- Scheduled maintenance conducted within announced windows
- Force majeure events (natural disasters, wars, government actions, pandemics)
- Client-side issues including network problems, misconfigured requests, or exceeding rate limits
- Abuse, unauthorized access, or violation of the Terms of Service
- Third-party service failures outside our reasonable control (DNS providers, certificate authorities, upstream network providers)
- Features explicitly labeled as beta or experimental
- Demo tier and Free tier usage (SLA applies to paid tiers only)
10. Changes to This SLA
We may update this SLA from time to time. Material changes will be communicated at least 30 days in advance via email to paid-tier customers. The current version is always available at this URL. Continued use of the API after changes take effect constitutes acceptance of the updated SLA.
11. Contact
For SLA-related inquiries, credit requests, or to report an incident:
- Email: api@meacheal.ai
- Organization: MEACHEAL Research Center