api.govparse.io/v1/patents/assignees/search

avoid grade B x402 endpoint Base found on CDP Bazaar confidence 1.00
https://api.govparse.io/v1/patents/assignees/search

As of 2026-08-15, api.govparse.io/v1/patents/assignees/search on Base held a near-perfect 99.5% uptime across 209 reliability checks since first seen 2026-07-26 (20 days). Responses came back sluggish at 776 ms average from a single EU vantage point (so this includes network distance to the endpoint) and it has held its advertised price steady at $1.25. Its x402-trust grade is B (score 75.3 from a solid sample, tracked for 20 days), so it is best avoided for now.

Advertised descriptionWhich companies are new to patenting, and in what technology? Search patent assignee ORGANIZATIONS (entity-resolved), each with first/last grant date, patent count, distinct CPC subclasses, and inventor count. new_assignee=true isolates orgs with their first-ever US patent grant (emerging/stealth signal for VC deal sourcing and corp-dev); narrow by CPC subclass, state/country, first-grant window, or patent_count_min. PatentsView grants (CC BY 4.0), observational.(Provider-supplied: an unverified claim, not checked by us. The trust grade above is our independent measurement.)
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Cached snapshot, computed 19 hours ago (refreshed at least every 24h). This is the full-density trust score computed from every probe, same as the paid API... but it may be up to 24 hours old. For a guaranteed-current answer it re-probes the endpoint live at the moment you ask, adds a confidence band, the full component breakdown, structured risk flags and on-chain settlement proof:
Browser wallet payment, no code required. Agents use POST /v1/x402-trust or the x402_trust_score MCP tool.
30-day uptime
99.5%
Avg latency (EU)
776 ms
moderate · from EU vantage
Confidence
1.00
full-density score
Advertised price
$1.25
USDC
Price stability
Stable
last 30 days
Probes (30d)
209
full record · up to 48/day

Latency is measured from a single EU vantage point; includes network round-trip distance to the endpoint; a geographically distant endpoint reads slower even when its server is fast, so it is only lightly weighted in the score.

↑ 10 better alternatives available

10 better-scored and cheaper endpoints serving a semantically similar purpose exist.

We don't reveal which ones here. The ranked list (resource URLs, exact scores, prices & similarity, etc...) is one paid call away. Purchase it right here with a browser wallet, no code required:

A wallet payment page opens first; approve the USDC payment and the ranked JSON list loads right in your browser. Agents use the x402_find_alternatives MCP tool or POST /v1/similar directly.

Full observation record ▾
Trust gradeB (score 75.3)
Recommendationavoid
Confidence1.00, full-density (every probe in the 30-day window)
30-day uptime99.5%
Avg latency (EU vantage)776 ms
Probes (30d)209
Advertised price$1.25 USDC
Price stability (30d)stable
Networkeip155:8453
First seen2026-07-26
Last probed2026-08-14
Statuslisted
Snapshot computed2026-08-14 23:21 UTC
This is the free cached snapshot. Here's what the paid API adds.
  • ✓
    Live probe at decision time:
    We re-check the endpoint the moment you ask (timestamped) and compute the score from all scores up until this moment, instead of this cached snapshot that may be up to 24h old.
  • ✓
    Confidence band, full component breakdown & structured risk flags:
    Exactly why the score is what it is, machine-readable.
  • ✓
    On-chain settlement proof:
    Real USDC volume & distinct-payer count for the payTo wallet: is anyone actually paying it?
  • ✓
    90-day raw history:
    Every listing/price/payTo change and probe result (via POST /v1/x402-history), up to 90 days back.
  • ✓
    The ranked better-scored alternatives:
    The resource URLs, scores & prices we don't reveal above (via POST /v1/similar), if there are better alternatives available.
  • ✓
    Change & liveness alerts:
    Get notified on payTo/price changes, spec regressions or downtime (via POST /v1/watch-endpoint-30d). Connect up to 10 Discord / Slack webhooks or poll regularly with bearer auth. Increases probe-density to every 5 minutes instead of the usual 30 for the watched endpoint.

... Simply give your agents the tools to do all of that for you, with a simple command
$npx -y x402-trust-mcp

Prefer HTTP? Call POST /v1/x402-trust directly (pay-per-call over x402, from $0.005).