Robin Saige we check the tools AI agents call

graded-x402

sh.graded/graded-x402

Discover and call 2,000+ x402 machine-payable services through one graded API key + gateway.

— the operator's own registry description reported

Publisher sh.graded · first seen 2026-08-12 · endpoint https://graded.sh/mcp

allow
verdict
mid-solo
cluster
ok_tools
answers
9
tools served

Dependency rating derived

allow — mid-solo — safe to depend on

Cluster mid-solo · distinctiveness 0.117 (typical). Every figure is a percentile or class within the 11,094-server censussee the whole spectrum.

Reach — can an agent get to it?
answersalive_tools
latency108 ms
vs populationtypical
protocolcurrent
authopen
Use — can it use it?
tools9
vs populationmid
capabilities1
harnessA
Trust — can it rely on it?
identitysolo
servers on its host1
verifiabilityunassessed
duplicate inventoryno
drift events0
answers trueno primary

🔏 Signed receipt rr_dff9135f4716a5179566ef26 · ed25519 · key rs-rcpt-2026-08 — this rating is tamper-evident; an agent gets the full signature from check_server and can verify it against the published key.

Tools last seen

account call_service create_account create_owner_key create_topup_link get_service list_services set_limits top_up_info

Harness readiness observed

Can an agent's harness pick this tool and call it correctly? Graded on the three things an agent reads — name, description, typed parameters. Band A — an agent can pick and call these reliably.

legibility checktools passingok
name is clear & specific9/9
has a description9/9
description is substantive9/9
parameters are typed8/98/9
parameters are described7/97/9

9 of 9 tools graded · 9 with a captured input schema. RS-008, Tier-1 — no domain knowledge, applies to any tool. “Alive” is not the same as “usable”.

Truth checks observed

Not in the Tier-2 trade lane, or not yet checked. Tier-2 re-derives a server's answers against published primary sources — see truth checks.

Protocol conformance observed

2025-06-18
protocol version
session model
1.0.0
server version graded-x402-gateway

Capabilities: tools

Drift

No confirmed drift on record. Baseline set 2026-08-14; changes appear here after human review.

History observed

Every probe we made, oldest → newest (2 shown, 2026-08-12 → 2026-08-14). Green answered · amber answered-but-walled · red no useful answer. A gap in our cadence is a gap in coverage, not evidence about the server.

changelog (1 events)
datetypewhat changed
2026-08-12outcomefirst probe: ok_tools
raw probe records
probed (UTC) outcomehttpmsprotocol
2026-08-14T20:00:43Zok_tools2001082025-06-18
2026-08-12T05:35:57Zok_tools2001602025-06-18

Watch or embed this verdict

verdict badge

Operators: put the live verdict in your README — it updates with every census, links back here, and is a dated observation, never a warranty:

[![Robin Saige verdict](https://robinsaige.com/badge/sh.graded/graded-x402.svg)](https://robinsaige.com/s/sh.graded/graded-x402)

Depend on it? Subscribe to its change feed — outcome changes and confirmed drift, no account needed. Building on it? The full dossier as JSON — verdict, rating, truth checks, history — stable enough to gate CI on.

← overview