- Providers
- 1
- Calls, 30 days
- 51K
- Lowest per hit
- $0.0003
- Reviews
- 14
Overview
Hit: A listed or not-listed verdict. Accuracy: Share of verdicts matching the registry export.
No provider routes this capability yet.
Endpoints
Every provider of this capability, ranked by Grid score: reliability, fill, accuracy, speed and cost per verified hit, weighted.
| # | Provider | Grid score | Price | Reliability | Fill rate | Accuracy | p50 | Freshness | Per verified hit | Reviews | Last verified |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Rank 1 |  Relaygrid Verified Benchmarked | 99 | $0.0003per call | 100.0%n=51K | 99.0% | 99.7% | 60 ms | ≤1 day | $0.0003 | Rated 4.8 out of 5(14 reviews) |
Pricing
List price per call, and what one verified hit costs once misses are counted. Failed calls are free.
| Provider | List price | Unit | Per verified hit | Your own key |
|---|---|---|---|---|
| Relaygrid | $0.0003 | per call | $0.0003 | Not supported |
Performance
Fill rate, accuracy, success and gateway latency per provider over the trailing 30 days, with the sample behind each number.
| Provider | Fill rate | Accuracy | Success | p50 | p95 | Samples |
|---|---|---|---|---|---|---|
| Relaygrid | 99.0% | 99.7% | 100.0% | 60 ms | 180 ms | 51K |
Uptime
Share of calls without a vendor-side failure (errors, timeouts, capacity). Caller mistakes and refusals don't count against a vendor. Last 30 days, daily.
Sample dataIllustrative figures from the catalog's quality samples until live traffic is published
- Relaygridrelaygrid/compliance.dnc.check
- Uptime
- 99.2%
- p50 / p95
- 60 ms180 ms
- Calls
- 50.2K
Apps
Public apps that identify themselves with X-Grid-App or HTTP-Referer and X-Title, over the last 30 days.
No public app has listed itself here yet. Add two headers to get yours ranked.
Activity
Routed calls per day over the last 30 days.
- Relaygrid
| Day | Relaygrid |
|---|---|
| Aug 28, 2026 | 1878 |
| Aug 29, 2026 | 1150 |
| Aug 30, 2026 | 1056 |
| Aug 31, 2026 | 2207 |
| Sep 1, 2026 | 2092 |
| Sep 2, 2026 | 2327 |
| Sep 3, 2026 | 2164 |
| Sep 4, 2026 | 1842 |
| Sep 5, 2026 | 927 |
| Sep 6, 2026 | 835 |
| Sep 7, 2026 | 2117 |
| Sep 8, 2026 | 2160 |
| Sep 9, 2026 | 2144 |
| Sep 10, 2026 | 1666 |
| Sep 11, 2026 | 1749 |
| Sep 12, 2026 | 914 |
| Sep 13, 2026 | 903 |
| Sep 14, 2026 | 1919 |
| Sep 15, 2026 | 1906 |
| Sep 16, 2026 | 2003 |
| Sep 17, 2026 | 2182 |
| Sep 18, 2026 | 2076 |
| Sep 19, 2026 | 940 |
| Sep 20, 2026 | 854 |
| Sep 21, 2026 | 1847 |
| Sep 22, 2026 | 1858 |
| Sep 23, 2026 | 1992 |
| Sep 24, 2026 | 1682 |
| Sep 25, 2026 | 1705 |
| Sep 26, 2026 | 1076 |
API
Same input for every provider. Add route=waterfall to fall through on misses, or provider=<slug> to pin one.
| Input | Description |
|---|---|
| phone* | E.164 number (required) |
curl https://api.gridrouter.io/v1/call/compliance.dnc.check \
-H "Authorization: Bearer $GRID_KEY" \
-d '{"phone":"+14155550123","route":"best_value"}'Fields
The normalized output every provider maps into. Suppliers come from integrated endpoint mappings (verified) or field names in each vendor's API docs (vendor-claimed).
| Field | Type | PII | Description | Supplied by |
|---|---|---|---|---|
| phone | string · phone | Business contact | Number checked | Not mapped yet |
| listed | boolean | None | On a do-not-call list | Not mapped yet |
| lists | array<string> | None | Lists matched | Not mapped yet |
| litigator | boolean | None | Known TCPA litigator | Not mapped yet |
| reassigned | boolean | None | Number reassigned since consent | Not mapped yet |
| checked_at | datetime | None | When checked | Not mapped yet |
Reviews
No written reviews yet. Reviews open after 100 routed calls on an endpoint.
Questions about this capability
What does a verified do-not-call check result cost?
Relaygrid is the lowest at $0.0003 per verified result once misses and wrong answers are counted. Its list price is $0.0003 per call.
Which do-not-call check API is the most accurate?
Relaygrid, at 99.7% across 51K calls in the last 30 days. Accuracy here is the share of verdicts matching the registry export.
What counts as a hit for do-not-call check?
A listed or not-listed verdict. Fill rate is the share of calls that produced a hit. Per-hit endpoints bill only hits, and failed calls are never billed.