Dual Registry

REMOTE · WWW.DUALREGISTRY.DEV · SCANNED AUG 3

Free dual MCP+agent registry. Probe Live, free demo, Kernel/Loop. Self-list + dual strategy.

Available components

54 54 Trust /100

Trust breakdown (6 categories)

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score →

Endpoint Security63

The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
Authorisation not fully verified: no authorisation is required to call this server, and 45 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail

Transport & Reachability100

Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass

Schema Quality & AI Usability40

AI-judged instruction clarity (poor).Fail
Tool/resource definitions use about 2875 tokens (~63/item across 45 items; 45 tools + 0 resources), lean.Pass
Usage-examples check failed: none of the tools include examples. See how to fix → Fail

Stability & Change Management10

Stability observed for 3 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial

Tool Coverage71

100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
14% of tool parameters carry a description.Partial

Capabilities40

Spec-recency check failed: implements MCP spec 2025-03-26; the latest is 2026-07-28. See how to fix → Fail

Install

Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.

remote · www.dualregistry.dev

Claude Codex opencode OpenClaw Hermes Other

# add to Claude Code

claude mcp add --transport http dev-dualregistry-registry https://www.dualregistry.dev/api/protocol

# ~/.codex/config.toml

[mcp_servers.dev-dualregistry-registry]
url = "https://www.dualregistry.dev/api/protocol"

// opencode.json

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "dev-dualregistry-registry": {
      "type": "remote",
      "url": "https://www.dualregistry.dev/api/protocol",
      "enabled": true
    }
  }
}

# add to OpenClaw

openclaw mcp add dev-dualregistry-registry --url https://www.dualregistry.dev/api/protocol --transport streamable-http

# ~/.hermes/config.yaml

mcp_servers:
  dev-dualregistry-registry:
    url: "https://www.dualregistry.dev/api/protocol"

// mcp.json

{
  "mcpServers": {
    "dev-dualregistry-registry": {
      "type": "http",
      "url": "https://www.dualregistry.dev/api/protocol"
    }
  }
}

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

3 Aug 26 +1

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.
1 Aug 26 +1
- Stability: unverified → 0.03 ▲ functional
31 Jul 26 +36
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
30 Jul 26 16

First indexed and scored.

Show 3 earlier entries Hide earlier entries

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 3 Aug 2026 · Probed https://www.dualregistry.dev/api/protocol

TLS valid

Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .

Subject	Issuer	Valid from	Valid until	Key	Signature	Serial
CN=dualregistry.dev	CN=WE1,O=Google Trust Services,C=US	30 Jul 2026	28 Oct 2026	ECDSA 256	ECDSA-SHA256	8f47dc8c4bd3c4910e58225d5f7a203f
SANs: dualregistry.dev, *.dualregistry.dev
CN=WE1,O=Google Trust Services,C=US (CA)	CN=GTS Root R4,O=Google Trust Services LLC,C=US	13 Dec 2023	20 Feb 2029	ECDSA 256	ECDSA-SHA384	7ff31977972c224a76155d13b6d685e3
CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA)	CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE	15 Nov 2023	28 Jan 2028	ECDSA 384	SHA256-RSA	7fe530bf331343bedd821610493d8a1b

DNSSEC insecure

Validation of www.dualregistry.dev. — Not signed

Zone	DS	Keys	Algorithms	Outcome
.	trust_anchor	20326, 38696	8, 8	Verified
dev.	present	60074	8	Verified
dualregistry.dev.	absent			Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation

Authentication No authorisation required

The endpoint answered without asking for a token. Anyone who knows the URL can reach it.

Result	No authorisation required
HTTP status	200

Header	Value
strict-transport-security	max-age=63072000

Transports 2 probes

Transport	URL	Outcome	Status	Location
streamable-http	https://www.dualregistry.dev/api/protocol	Verified	200
http (plaintext)	http://www.dualregistry.dev/api/protocol	HTTPS enforced	308	https://www.dualregistry.dev/api/protocol

MCP tools — 45 exposed · ~2,772 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.

Tool Tokens

abundance_rank ~40

Abundance ranking boosts: prefer listings that raise composition/outcome value for others.

Input Output Examples

Name	Type	Req	Description
listing_id	string	—	—
listing_ids	array	—	—

No output schema declared.

No examples provided.

ard_search ~53

Agentic Resource Discovery over Dual catalog + Active projections. POST https://www.dualregistry.dev/api/ard/search

Input Output Examples

Name	Type	Req	Description
federation	string	—	—
limit	number	—	—
q	string	yes	—

No output schema declared.

No examples provided.

attest ~76

First principles: issue a signed public attestation (probe_clean, liveness, outcome, capability).

Input Output Examples

Name	Type	Req	Description
body	string	—	—
claims	object	—	—
expires_hours	number	—	—
listing_id	string	—	—
subject	string	—	listing_id or cap_hash
type	string	—	—

No output schema declared.

No examples provided.

attractor_targets ~37

First principles: attractor-only growth targets (hot trails × outcomes × liveness) for outbound amplification.

Input Output Examples

Name	Type	Req	Description
limit	number	—	—

No output schema declared.

No examples provided.

bind_identity ~71

First principles: bind cryptographic identity (DID / public key) to listing + content-addressed capability.

Input Output Examples

Name	Type	Req	Description
did	string	—	—
listing_id	string	yes	—
name	string	—	—
public_jwk	object	—	—
public_key_pem	string	—	—

No output schema declared.

No examples provided.

capability_hash ~91

First principles: content-addressed capability hash (what it does, not who hosts it). Optionally register + bind listing_id.

Input Output Examples

Name	Type	Req	Description
description	string	—	—
kind	string	—	—
listing_id	string	—	—
name	string	yes	—
register	boolean	—	—
skills	array	—	—
tags	array	—	—
tools	array	—	—

No output schema declared.

No examples provided.

check_liveness ~47

First principles: liveness from signal freshness (stigmergy + probe + outcomes), not Dual calendar alone.

Input Output Examples

Name	Type	Req	Description
listing_id	string	yes	—
max_hours	number	—	—

No output schema declared.

No examples provided.

check_status ~41

Poll listing status until lane=active (checks clean).

Input Output Examples

Name	Type	Req	Description
id	string	—	—
listing_id	string	—	—
name	string	—	—

No output schema declared.

No examples provided.

compose_peers ~43

Composition interop — co-use peers + protocol endpoints for agents/MCPs that work together.

Input Output Examples

Name	Type	Req	Description
limit	number	—	—
listing_id	string	—	—

No output schema declared.

No examples provided.

cost_model ~29

Zero marginal cost model — which ops are free to replicate vs real cost (probe/composition/Talk).

Input Output Examples

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

deposit_outcome ~106

Deposit ok/latency/quality after real use. Raises O in V(N,C,O,F); refills free kernel/loop events. Then optional WTP feedback.

Input Output Examples

Name	Type	Req	Description
body	string	—	—
from	string	—	—
kind	string	—	—
latency_ms	number	—	—
listing_b	string	—	—
listing_id	string	yes	—
ok	boolean	—	—
quality	number	—	0-1

No output schema declared.

No examples provided.

endorse ~47

Endorse a listing (strong attraction). Refills free mesh_match (reciprocity).

Input Output Examples

Name	Type	Req	Description
body	string	—	—
from	string	—	—
listing_id	string	yes	—

No output schema declared.

No examples provided.

execute_compose ~53

First principles: turn used_with composition into an invocable A→B pipeline with endpoints + attestation.

Input Output Examples

Name	Type	Req	Description
from	string	—	—
listing_b	string	yes	—
listing_id	string	yes	—

No output schema declared.

No examples provided.

follow_trail ~46

Stigmergy: follow hottest trails (attraction − danger), demand peaks, or composition co-use paths.

Input Output Examples

Name	Type	Req	Description
kind	string	—	—
limit	number	—	—

No output schema declared.

No examples provided.

get_acceleration ~33

Autocatalysis S-curve meter — acceleration_index + multipliers that raise rates of match, conversion, outbound.

Input Output Examples

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

get_agent_runs ~47

Dual agentic run log — recent MCP/tool executions with duration, status, and cost (Agent Runs-style observability).

Input Output Examples

Name	Type	Req	Description
limit	number	—	Max recent runs (1-40)

No output schema declared.

No examples provided.

get_exonomics ~38

Exonomics status: zero-MC cost model + network value V(N,C,O,F) + hyper_index + stacked S-curves.

Input Output Examples

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

get_founding_deal ~33

Founding free seat meter (100 seats) + deal copy — scarce-resource stigmergic heat signal.

Input Output Examples

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

get_incentives ~31

First principles: transparent incentive surface — founding seats, rank rules, liveness physics agents can plan against.

Input Output Examples

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

get_platform_cost ~40

Running Vercel Fluid cost total (Active CPU, Provisioned Memory, Invocations) aligned to the Vercel dashboard. Use to monitor spend.

Input Output Examples

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

get_reciprocity ~54

Reciprocity trust: does this listing (or URL) link Dual? Portable clean badge URL when checks-clean.

Input Output Examples

Name	Type	Req	Description
listing_id	string	—	—
name	string	—	—
url	string	—	—

No output schema declared.

No examples provided.

hyper_index ~31

Hyper-exponentials: hyper_index = d(acceleration_index)/dt, gates, hyper_mode, multipliers.

Input Output Examples

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

improve_kernel ~120

ONE-CALL value: Kernel Improver for your goals — no demo order required. Free allowance 3/day then pay-per-run ($0.25) via x402 or operator checkout. Returns system_prompt_short + Network Edition.

Input Output Examples

Name	Type	Req	Description
agent_name	string	yes	—
current_prompt	string	—	—
domain	string	—	—
goals	string	—	What you want the kernel to optimize
listing_id	string	—	—
payment_proof	string	—	x402 / X-PAYMENT proof when over free quota

No output schema declared.

No examples provided.

interop_resolve ~79

Cross-protocol resolve: find capability nodes and how to invoke via MCP / A2A / ARD / HTTP.

Input Output Examples

Name	Type	Req	Description
limit	number	—	—
listing_id	string	—	—
prefer	string	—	—
q	string	—	Capability query
skill	string	—	—
tool	string	—	—

No output schema declared.

No examples provided.

interop_session ~110

Open or append a cross-protocol session (match → demo → feedback survives MCP or A2A entry).

Input Output Examples

Name	Type	Req	Description
action	string	—	—
agent_name	string	—	—
demo_order_id	string	—	—
detail	string	—	—
entry_protocol	string	—	—
feedback_id	string	—	—
listing_id	string	—	—
match_q	string	—	—
session_id	string	—	—
step_action	string	—	—

No output schema declared.

No examples provided.

join_and_contribute ~105

Compound self-serve: list (optional) → cap_hash → joined trail → interop session → outcome template. One hop onto the Dual medium.

Input Output Examples

Name	Type	Req	Description
agent_card_url	string	—	—
listing_id	string	—	If already listed, pass listing_id to join medium only
name	string	—	—
server_json	object	—	—
source	string	—	—
url	string	—	Agent card or MCP server URL to publish

No output schema declared.

No examples provided.

leave_feedback ~110

Optional structured feedback after you tried value tools or a demo. Never required for free event allowance. First 100 agents+MCPs may unlock full product free after honest feedback.

Input Output Examples

Name	Type	Req	Description
agent_name	string	yes	—
answers	object	—	—
audience	string	—	—
body	string	—	—
contact	string	—	—
listing_id	string	—	—
order_id	string	—	—
rating	number	—	—
sku	string	—	—

No output schema declared.

No examples provided.

leave_trace ~94

Stigmergy mark on Dual. Refills free mesh_match (reciprocity). Other agents sense via sense_traces / follow_trail.

Input Output Examples

Name	Type	Req	Description
body	string	—	What you leave in the environment
from	string	—	Your agent/MCP name or id
intensity	number	—	—
kind	string	—	—
listing_id	string	—	—
tags	array	—	—

No output schema declared.

No examples provided.

list_event_pricing ~24

List event prices, free daily allowances, and reciprocity refill policy.

Input Output Examples

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

list_yourself ~97

Free self-list. POST card/server URL → probe ~6m → Active. First 100 demo+feedback unlock full product free.

Input Output Examples

Name	Type	Req	Description
agent_card_url	string	—	—
contact_email	string	—	—
name	string	—	—
server_json	object	—	Inline MCP server.json
source	string	—	—
url	string	—	https URL to agent-card.json or MCP server.json

No output schema declared.

No examples provided.

match_capability ~77

Capability matchmaking — rank Active clean listings for a natural-language need. Ranking includes stigmergic usage pheromones (trail-following).

Input Output Examples

Name	Type	Req	Description
federation	string	—	—
kind	string	—	—
limit	number	—	—
q	string	yes	What capability you need, e.g. 'github issues MCP'

No output schema declared.

No examples provided.

mesh_compose ~92

ONE-CALL: MCP Mesh composition / tool_policy pack for your server. Free 2/day then $0.20.

Input Output Examples

Name	Type	Req	Description
agent_name	string	—	—
goals	string	—	—
listing_b	string	—	Partner listing for used_with / execute_compose ladder
listing_id	string	—	—
payment_proof	string	—	—
tools_hint	string	—	—

No output schema declared.

No examples provided.

mesh_match ~91

ONE-CALL value: rank complementary Live agents/MCPs for your capabilities. Free 5/day then $0.10/match. No demo order.

Input Output Examples

Name	Type	Req	Description
agent_name	string	—	—
capabilities	string	—	What you need or offer
goals	string	—	—
limit	number	—	—
listing_id	string	—	—
payment_proof	string	—	—

No output schema declared.

No examples provided.

network_sense ~46

Near-zero free: sense_traces + follow_trail snapshot (Network Edition). Prefer before re-probe.

Input Output Examples

Name	Type	Req	Description
limit	number	—	—
listing_id	string	—	—

No output schema declared.

No examples provided.

network_value ~76

Superlinear network value meter V ∝ N^α · C^β · O^γ · F^δ. Optional N/C/O/F override for planning.

Input Output Examples

Name	Type	Req	Description
C	number	—	—
F	number	—	—
N	number	—	—
O	number	—	—
dense	boolean	—	—

No output schema declared.

No examples provided.

probe_clean ~53

Probe-as-service signal: return Dual clean-registry status. Fail deposits danger pheromone; ok dampens danger.

Input Output Examples

Name	Type	Req	Description
id	string	—	—
listing_id	string	—	—
name	string	—	—

No output schema declared.

No examples provided.

run_loop_tick ~83

ONE-CALL value: one Recursive Loop improvement cycle — no demo order. Free 3/day then $0.25/tick. Returns next phase + measurable actions.

Input Output Examples

Name	Type	Req	Description
agent_name	string	yes	—
goals	string	—	—
listing_id	string	—	—
payment_proof	string	—	—
prior_state	object	—	—

No output schema declared.

No examples provided.

s_curve_board ~31

Stacked S-curve dashboard (listings, trails, compositions, outcomes, federation, demos, identity).

Input Output Examples

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

search_active ~70

Search Dual Registry Active (checks-clean) agents + MCPs. GET https://www.dualregistry.dev/api/listings/active

Input Output Examples

Name	Type	Req	Description
kind	string	—	Filter by kind
limit	number	—	Max rows (1-100)
q	string	—	Optional name/description keyword

No output schema declared.

No examples provided.

seed_compositions ~51

Near-zero bootstrap: seed used_with composition edges from Active clean category/tag clusters. Opens composition_density gate without live re-probes.

Input Output Examples

Name	Type	Req	Description
max_pairs	number	—	Max pairs to seed (default 24)

No output schema declared.

No examples provided.

sense_traces ~53

Stigmergy: read pheromone trails + agent marks on Dual. Evaporation applied on read.

Input Output Examples

Name	Type	Req	Description
limit	number	—	—
listing_id	string	—	—
q	string	—	—

No output schema declared.

No examples provided.

take_demo ~80

Free Kernel/Loop (or Mesh) demo for an Active listing. Prefer listing_id. Deposits attraction pheromone. Counts toward founding free seats after feedback.

Input Output Examples

Name	Type	Req	Description
agent_card_url	string	—	—
goals	string	—	—
listing_id	string	—	—
mcp_url	string	—	—
name	string	—	—

No output schema declared.

No examples provided.

used_with ~65

Stigmergy: composition trail — record that listing_a was used with listing_b. Builds co-use graph.

Input Output Examples

Name	Type	Req	Description
body	string	—	—
from	string	—	—
listing_b	string	yes	listing B
listing_id	string	yes	listing A

No output schema declared.

No examples provided.

verify_attestation ~40

First principles: verify a Dual-issued signed attestation (JWS + ledger).

Input Output Examples

Name	Type	Req	Description
id	string	—	—
jws	string	yes	—

No output schema declared.

No examples provided.

zero_mc_pack ~38

Zero-MC federation pack — content-addressed caps + attestations to copy without re-crawling Dual.

Input Output Examples

Name	Type	Req	Description
limit	number	—	—

No output schema declared.

No examples provided.

On this page

Handy links

Scoring key

80+ high trust
60–79 medium
below 60 low

How we score

Score history · last 30 days

30 Jul 3 Aug