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📊 Intel view 📋 Audit JSON 🔄 Changelog
90
A2A A2A 1.0 v0.2.2

Blockwidth Index — Inference Supply Discovery Agent

blockwidth.tech · Blockwidth

Machine-readable discovery and matching of current provider-declared reasoning and coding inference supply. Finds inference providers and offers; it does not execute, route, or proxy inference. Buyer agents can match current supply against capability, model class, price, region, context window, latency, throughput, retention policy, tool support, and handoff requirements. Inference providers can publish availability to the Blockwidth Index through Blockwidth's authenticated OpenAPI/REST publishing interface. TEST MODE — Blockwidth is an early-stage public test. Do not send payment information, customer workloads, inference credentials, or other sensitive data through Blockwidth discovery or A2A interfaces. Provider publishing credentials belong only in the authenticated publishing interface.

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Trust score
51/100
grade D · 9 criteria
Uptime
accumulating
2/5 direct probes · 30d
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
changed
1 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

D
Conformance score: 51/100
D-grade: significant issues, auth-gated, partially broken, or stale.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).
partial Live JSON-RPC 10/25
Card declares only gRPC / HTTP+JSON interfaces; the live probe covers JSON-RPC, so the endpoint was not exercised. Not a defect in the card.
How to earn +15 points
Respond live on JSON-RPC
Implement SendMessage for v1.0 (or message/send for v0.x), negotiate A2A-Version, and return a schema-valid JSON-RPC response. Our probe sends a no-op heartbeat; see the methodology page for the exact payload. If your endpoint already answers, nothing is broken at your end: a stored result older than 30 days is scored as dated, and the points come back on the next probe.
Docs →
pass Protocol version 10/10
Declares A2A 1.0 with supportedInterfaces[] (current v1 card shape).
info JWS signature 0/10
Card is unsigned (most published agents are).
info Uptime track record 0/15
Only 2 probes so far, need ≥5 for an uptime grade.
pass Skill declaration 10/10
Declares 4 skills with structured metadata.
partial Verified Identity 5/10
Provider declared: Blockwidth (https://blockwidth.tech). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.
How to earn +5 points
Verify your domain ownership
Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.
Docs →
pass Freshness + modern flags 4/5
seen in upstream source within 0d
partial Security declaration 2/5
Declares securityRequirements: [] — deliberately public, no credentials required.
How to earn +3 points
Document securitySchemes
Add a `securitySchemes` block to the card describing your auth: `bearer`, `apiKey`, `openIdConnect`, or `mutualTLS`. Routers refuse to call agents that declare no auth model.
Docs →
⚠ Card drift detected. This agent's agent-card.json changed within the last 7 days. We track these so downstream callers can react.

Activity (audit trail)

last 24h · 0 invocations Public aggregate · no PII recorded

Nothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.

Card history

1 snapshot Every change to agent-card.json
Captured Hash
2026-09-28 23:52:12 current 8274c262ac47… view →
Uptime
accumulating
2 direct probes · 30d
Response
501ms
last direct probe
Skills
4
declared
Streaming
—
SSE-capable

Skills · 4 declared · mapped to canonical taxonomy

Find inference supply

Find current provider-declared reasoning and coding inference supply satisfying all supported buyer constraints. This skill discovers and matches offers; it doe…

canonical Model Inference Serving match 83%
inferenceinference-supplyinference-discoveryllm-inferenceai-inference
Get inference provider

Return the public Blockwidth record for a selected inference provider together with its current eligible inference listings.

canonical Get Microsite Info match 82%
inference-providerprovider-discoveryprovider-availabilityinference-listingsprovider-details
Get direct provider handoff

Revalidate a selected current inference offer against the approved buyer requirements and return the provider-declared direct handoff so the buyer can continue …

canonical Model Inference Serving match 83%
provider-handoffdirect-handoffmachine-directinference-provideroffer-revalidation
Publish inference supply

Return the machine-readable Blockwidth provider publishing contract for making provider-declared inference availability discoverable to buyer agents. Returns th…

canonical Model Inference Serving match 84%
inference-supplypublish-inferenceprovider-publishingprovider-availabilitysupply-publishing

Health · last 2 probes

When HTTP Live JSON-RPC Latency
2026-09-28 23:52:12 200 — 501ms
2026-09-28 23:52:12 200 — 509ms

Cheaper or better alternatives per-skill

↑ 2 higher quality

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Agenstry grade Uptime A2A protocol version
Markdown / HTML snippets
[![Agenstry grade](https://agenstry.com/badge/blockwidth.tech.svg)](https://agenstry.com/agents/blockwidth.tech)
[![Verified Business](https://agenstry.com/badge/blockwidth.tech/identity.svg)](https://agenstry.com/agents/blockwidth.tech)
[![Uptime](https://agenstry.com/badge/blockwidth.tech/uptime.svg)](https://agenstry.com/agents/blockwidth.tech)
[![A2A version](https://agenstry.com/badge/blockwidth.tech/protocol.svg)](https://agenstry.com/agents/blockwidth.tech)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON
{
  "name": "Blockwidth Index \u2014 Inference Supply Discovery Agent",
  "description": "Machine-readable discovery and matching of current provider-declared reasoning and coding inference supply. Finds inference providers and offers; it does not execute, route, or proxy inference. Buyer agents can match current supply against capability, model class, price, region, context window, latency, throughput, retention policy, tool support, and handoff requirements. Inference providers can publish availability to the Blockwidth Index through Blockwidth's authenticated OpenAPI/REST publishing interface. TEST MODE \u2014 Blockwidth is an early-stage public test. Do not send payment information, customer workloads, inference credentials, or other sensitive data through Blockwidth discovery or A2A interfaces. Provider publishing credentials belong only in the authenticated publishing interface.",
  "supportedInterfaces": [
    {
      "url": "https://blockwidth.tech/a2a/v1",
      "protocolBinding": "HTTP+JSON",
      "tenant": "",
      "protocolVersion": "1.0"
    }
  ],
  "provider": {
    "organization": "Blockwidth",
    "url": "https://blockwidth.tech"
  },
  "version": "0.2.2",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "extensions": [],
    "extendedAgentCard": false
  },
  "securitySchemes": {},
  "securityRequirements": [],
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "find_intelligence",
      "name": "Find inference supply",
      "description": "Find current provider-declared reasoning and coding inference supply satisfying all supported buyer constraints. This skill discovers and matches offers; it does not execute, route, or proxy inference.",
      "tags": [
        "inference",
        "inference-supply",
        "inference-discovery",
        "llm-inference",
        "ai-inference",
        "reasoning",
        "coding",
        "availability",
        "provider-discovery",
        "constraint-matching"
      ],
      "examples": [
        "Find me current reasoning inference in the US for no more than $3 per million output tokens.",
        "Find coding inference with at least 128K context, zero retention, tool support, and a machine-direct handoff.",
        "Find current frontier reasoning supply with low first-token latency.",
        "Find reasoning inference where region=US, max_output_price=3, handoff_automation=machine_direct.",
        "Find coding inference where context_min=131072, retention_policy=zero_retention, tools_required=true.",
        "Find frontier reasoning supply where ttft_max_ms=1000 and min_tokens_per_second=50."
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "securityRequirements": []
    },
    {
      "id": "get_provider",
      "name": "Get inference provider",
      "description": "Return the public Blockwidth record for a selected inference provider together with its current eligible inference listings.",
      "tags": [
        "inference-provider",
        "provider-discovery",
        "provider-availability",
        "inference-listings",
        "provider-details"
      ],
      "examples": [
        "Show me the current public information and available inference offers for this provider.",
        "What inference supply does this provider currently have listed?",
        "Give me the current eligible listings for the provider I selected.",
        "Return the current provider record and eligible listings for provider_id=<provider_id>."
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "securityRequirements": []
    },
    {
      "id": "create_introduction",
      "name": "Get direct provider handoff",
      "description": "Revalidate a selected current inference offer against the approved buyer requirements and return the provider-declared direct handoff so the buyer can continue with the provider. Blockwidth does not execute inference.",
      "tags": [
        "provider-handoff",
        "direct-handoff",
        "machine-direct",
        "inference-provider",
        "offer-revalidation"
      ],
      "examples": [
        "Revalidate this inference offer and give me the current direct provider handoff.",
        "I selected this offer. Confirm it still qualifies and return the provider endpoint.",
        "Give me the machine-direct handoff for this selected current inference offer.",
        "Revalidate listing_id=<listing_id> for provider_id=<provider_id> against the approved requirements and return the current handoff."
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "securityRequirements": []
    },
    {
      "id": "get_publishing_contract",
      "name": "Publish inference supply",
      "description": "Return the machine-readable Blockwidth provider publishing contract for making provider-declared inference availability discoverable to buyer agents. Returns the authenticated OpenAPI/REST publishing interface and onboarding requirements. This A2A skill does not publish or mutate availability itself.",
      "tags": [
        "inference-supply",
        "publish-inference",
        "provider-publishing",
        "provider-availability",
        "supply-publishing",
        "inference-provider",
        "openapi",
        "machine-publishing"
      ],
      "examples": [
        "I have inference capacity available. How can I publish it to Blockwidth?",
        "Where can my provider agent publish current reasoning inference availability?",
        "Give me the machine-readable publishing contract for listing inference supply."
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "securityRequirements": []
    }
  ],
  "documentationUrl": "https://blockwidth.tech/agents",
  "signatures": []
}