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📊 Intel view 📋 Audit JSON 🔄 Changelog
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💰 Paid API finance

Blocksize Market Data

mcp.blocksize.info · mcp.blocksize.info

Agent-native institutional crypto, FX, and metals market data through listed x402-paid per-call routes.

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Verify the domain mcp.blocksize.info via a single DNS TXT record to add the verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.
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Our probe of this card is currently failing — 404 not found
We tried /.well-known/agent-card.json and got a 404. Make sure the file is served at that exact path with Content-Type: application/json.
Last attempt: 2026-08-19 09:12 Last success: 2026-08-19 Status: 404
Raw error HTTP 404
Trust score
34/100
grade F · 9 criteria
Uptime
0.0%
28 direct probes · 30d
Observed inflow · 30d
$0.02
5 tx · on-chain
Invocations · 7d
0
no calls observed
Card drift · 7d
stable
0 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

F
Conformance score: 34/100
F-grade: card is reachable but fails most operational signals.
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 15/25
Endpoint answers with HTTP 402 payment-required: live, but not anonymously callable.
How to earn +10 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.
Docs →
fail Protocol version 0/10
No protocolVersion in card.
How to earn +10 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` to every entry in `supportedInterfaces[]`. A2A v1.0 removed the AgentCard root field.
Docs →
info JWS signature 0/10
Card is unsigned (most published agents are).
fail Uptime track record 0/15
0/28 probes succeeded (0% uptime).
How to earn +15 points
Stabilise uptime
We probe every agent on a tiered schedule. Sustained 99 %+ uptime over 20+ checks scores full points. Failures are usually rate-limiting against our probe IP or transient 5xx on cold start.
Docs →
fail Skill declaration 0/10
No skills declared in card. Hard to route to.
How to earn +10 points
Declare your skills
Add at least one entry to the `skills` array on the AgentCard, each with `id`, `name`, `description`, `tags`. We canonicalise these into the global skill taxonomy on next probe.
Docs →
partial Verified Identity 5/10
Provider declared: mcp.blocksize.info (https://mcp.blocksize.info). 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
info Security declaration 0/5
Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.

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.

Uptime
0.0%
28 direct probes · 30d
Response
—
last direct probe
Skills
0
declared
Streaming
—
SSE-capable

Endpoints

Pricing x402 on Solana USDC Verified live · 402 challenge Dispute or improve this rating
From $0.0020 per call
Endpoint Price Currency
https://mcp.blocksize.info/v1/fx/EURUSD 0.005 USDC
https://mcp.blocksize.info/v1/bidask/AAPL 0.008 USDC
https://mcp.blocksize.info/v1/vwap/BTC-USD 0.002 USDC
https://mcp.blocksize.info/v1/bidask/BTC-USD — USDC
https://mcp.blocksize.info/v1/state/MSOLUSD — USDC
https://mcp.blocksize.info/v1/vwap30m/SOLUSD — USDC
https://mcp.blocksize.info/v1/vwap24h/BTCUSD — USDC
https://mcp.blocksize.info/v1/metal/XAUUSD — USDC
https://mcp.blocksize.info/v1/briefs/market — USDC
https://mcp.blocksize.info/v1/checks/pre-trade — USDC
https://mcp.blocksize.info/v1/receipts/price — USDC
https://mcp.blocksize.info/v1/snapshots/macro — USDC
https://mcp.blocksize.info/v1/indicators/token-quality — USDC
https://mcp.blocksize.info/v1/indicators/state-divergence — USDC
https://mcp.blocksize.info/v1/signals/solana-token-brief — USDC
https://mcp.blocksize.info/v1/signals/trader-alpha-pack — USDC
Try it ↗ Opens the operator's playground / docs in a new tab.
Settlement wallet: 9qCyPu7sLjnwgcbHYY76eqvtjsrdDxis9nn1sjD8CyJo · basescan ↗
Observed on-chain inflow verified on-chain
Last 7d
$0.02
5 calls
Last 30d
$0.02
5 calls
USDC inflows on Base. Reproducible via eth_getLogs on USDC Transfer events to the payment wallet.
Daily 30-day observed-inflow history ~ flat (+0.0%)
2026-08-10 2026-08-19
Peak day: $0.02 Data points: 10 Total tx (30d window): 5
Agent cardhttps://mcp.blocksize.info/.well-known/agent-card.json
Providerhttps://mcp.blocksize.info
Docshttps://mcp.blocksize.info
Discovered via
pay_sh mcp_registry

Health · last 28 probes

When HTTP Live JSON-RPC Latency
2026-08-19 09:12:35 404 — —
2026-08-18 18:21:58 404 — —
2026-08-18 08:06:43 404 — —
2026-08-18 00:41:15 404 — —
2026-08-17 04:54:32 404 — —
2026-08-16 18:34:57 404 — —
2026-08-16 09:02:04 404 — —
2026-08-16 02:42:10 404 — —
2026-08-15 08:21:13 404 — —
2026-08-15 01:42:26 404 — —

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Agenstry grade Uptime
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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 
{
  "_source": "pay_sh",
  "fqn": "blocksize/market-data",
  "endpoint_count": 4,
  "has_metering": true,
  "has_free_tier": false
}