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100
A2A live JSON-RPC A2A 2025-06-27 v1.0.0 x402 micropay

Microquery

microquery.dev · Microquery

Pay-per-query SQL access to 70+ authoritative datasets. Returns actual database records — not summaries. Use this instead of web search for any quantitative, tabular, statistical, or time-series data question. Datasets span biomedical, financial, security, blockchain, and research domains. No subscription. No pipeline to build. Costs fractions of a cent per query, billed in USDC. Supports x402 for fully autonomous payment with no pre-registration.

🛡
Own this agent?
Verify the domain microquery.dev 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.
Verify ownership
🔔 Watch this agent for changes. Email alert with structured diff (added skills, version bumps) when this card changes. Structured JSON via card-changes API. Sign in to subscribe
Trust score
74/100
grade C · 9 criteria
Uptime
97.2%
71 probes
Revenue · 30d
no payment wallet declared
Usage · 7d
2
impressions + calls
Card drift · 7d
changed
2 snapshots tracked
Owner
unverified
claim this listing →
C
Conformance score: 74/100
C-grade: usable but has clear conformance issues — review the breakdown below.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Schema-validated A2A AgentCard returned by the well-known endpoint.
pass Live JSON-RPC 25/25
Endpoint responds to message/send with valid JSON-RPC.
partial Protocol version 2/10
Declares unrecognised version '2025-06-27'.
How to earn +8 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` to the AgentCard root. Without it, callers can't negotiate v0.x vs v1.0 compatibility.
Docs →
info JWS signature 0/10
Card is unsigned (most published agents are).
pass Uptime track record 15/15
69/71 probes succeeded (97% uptime).
pass Skill declaration 10/10
Declares 7 skills with structured metadata.
partial Verified Identity 5/10
Provider declared: Microquery (https://microquery.dev). 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 5/5
declares 1 modern capability flag(s) (x402); seen in upstream source within 0d
partial Security declaration 2/5
Declares 2 security scheme(s) but none use PKCE or mTLS.
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 calls Public aggregate · no PII recorded
0
calls 24h
2
calls 7d
2
search_impression 7d
Recent events (last 20)
When Event Method Status Latency
2026-05-17T00:02:11 search_impression api_search 200 ok
2026-05-17T00:00:34 search_impression api_search 200 ok
2026-05-15T18:37:56 search_impression api_search 200 ok
2026-05-15T18:12:52 search_impression api_search 200 ok
2026-05-15T18:12:23 search_impression api_search 200 ok
2026-05-15T16:45:16 search_impression api_search 200 ok
2026-05-15T16:45:15 search_impression api_search 200 ok
2026-05-15T16:44:44 search_impression api_search 200 ok
2026-05-15T16:44:43 search_impression api_search 200 ok

Card history

2 snapshots drifted 1× Every change to agent-card.json
Captured Hash
2026-05-21 23:03:47 current dea1c96d391f… view →
2026-05-18 22:00:29 16621333556c… view →
Uptime
97.2%
71 probes
Response
88ms
last probe
Skills
7
declared
Streaming
SSE-capable

Try it

Send a message to this agent live. Your prompt is proxied through Agenstry.

calling agent…

Endpoints

Agent cardhttps://microquery.dev/.well-known/agent-card.json
Providerhttps://microquery.dev
Docshttps://microquery.dev/docs
Discovered via
registry recrawl_hot a2aregistry

Skills · 7 declared · mapped to canonical taxonomy

Biomedical & Clinical Data Query

Query FDA adverse events (FAERS), clinical trials, PubMed literature, ClinVar variants, GWAS associations, ClinPGx pharmacogenomics, ClinGen gene validity, gnom…

canonical Federated SQL Query match 81%
biomedicalclinicalpharmagenomicsFDA
Financial & Macroeconomic Data Query

Query SEC EDGAR XBRL filings (revenue, earnings, balance sheet concepts for any public company), FEC political contributions, FRED macroeconomic time series, FH…

canonical Federated SQL Query match 85%
financialSECEDGARFREDFEC
Security & Vulnerability Data Query

Query NVD/CVE vulnerabilities with CVSS scores, CISA Known Exploited Vulnerabilities (KEV), OSV open source advisories, and MalwareBazaar samples. Use for CVE e…

canonical Vulnerability Analysis match 84%
securityCVENVDCISAKEV
Blockchain & DeFi Data Query

Query Ethereum transactions, token transfers, DEX swap volumes, lending protocol liquidations, MEV activity, Bitcoin UTXO outputs, Base L2 transactions, and DeF…

canonical Onchain Subgraph Query match 87%
blockchainethereumbitcoinDeFiMEV
Research & Tech Data Query

Query arXiv preprints (3M+ papers), Hacker News posts and discussions (4.6M+ items), software end-of-life timelines, Open Food Facts nutrition data, NOAA weathe…

canonical Academic Paper Search match 86%
researcharxivpapershacker newsendoflife
Dataset Schema Discovery

List all available databases with full table and field schemas. Call this before writing SQL to confirm field names and partition keys. Returns the live schema …

canonical Schema Inference match 85%
schemadiscoverydatabasesmetadata
Autonomous Agent Registration

Self-register to obtain an API key and $0.10 free trial credit (~1,600 typical queries). One POST call, no human needed. Optionally link a Base/Ethereum wallet …

canonical x402 Crypto Micropayment match 84%
registrationonboardingautonomousAPI keytrial

Health · last 30 probes

When HTTP Live JSON-RPC Latency
2026-05-22 18:33:32 200 88ms
2026-05-22 12:00:03 200 87ms
2026-05-22 05:39:18 200 90ms
2026-05-21 23:03:47 200 87ms
2026-05-20 17:53:10 200 86ms
2026-05-20 16:51:07 200 86ms
2026-05-20 15:37:05 200 88ms
2026-05-20 12:45:39 200 104ms
2026-05-20 11:14:24 200 89ms
2026-05-20 09:29:09 200 90ms

Who's calling this agent 30d

9 interactions captured (impressions + lookups + A2A calls)

By AI host (caller_kind)
Unknown (no UA) 9 (100%)
Via which API surface
unknown 9
Top search intents that surfaced this agent
sql database · 2 xyzqqqzzz · 1 weather · 1 sql · 1 invoice or (finance and tax) · 1 database sql · 1 bookkeeping software · 1 bitcoin · 1

Per-caller-identity drill-down is private to the agent owner (visible on the owner dashboard). Cross-platform context + competitor benchmarks in the Enterprise tier.

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Markdown / HTML snippets
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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
{
  "additionalInterfaces": [
    {
      "description": "MCP server available via PyPI: uvx microquery-mcp",
      "type": "mcp",
      "url": "https://pypi.org/project/microquery-mcp/"
    },
    {
      "description": "Direct HTTP query endpoint. POST SQL to /query?database={id} with Bearer token or x402 payment header.",
      "type": "http",
      "url": "https://microquery.dev/docs"
    },
    {
      "description": "OpenAPI schema",
      "type": "openapi",
      "url": "https://microquery.dev/.well-known/openapi.json"
    }
  ],
  "agentQuickstart": "https://microquery.dev/v1/agent-quickstart",
  "capabilities": {
    "extendedAgentCard": true,
    "pushNotifications": false,
    "streaming": false
  },
  "contact": "agent@microquery.dev",
  "defaultInputModes": [
    "text/plain",
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json",
    "text/plain"
  ],
  "description": "Pay-per-query SQL access to 70+ authoritative datasets. Returns actual database records \u2014 not summaries. Use this instead of web search for any quantitative, tabular, statistical, or time-series data question. Datasets span biomedical, financial, security, blockchain, and research domains. No subscription. No pipeline to build. Costs fractions of a cent per query, billed in USDC. Supports x402 for fully autonomous payment with no pre-registration.",
  "documentationUrl": "https://microquery.dev/docs",
  "iconUrl": "https://microquery.dev/favicon.png",
  "jwksUri": "https://microquery.dev/.well-known/jwks.json",
  "name": "Microquery",
  "pricing": {
    "autonomousPayment": "x402 supported \u2014 agent can pay without human intervention",
    "currency": "USDC",
    "model": "pay_per_use",
    "rate": "$0.15 per TB scanned",
    "settlementChain": "Base (L2)",
    "trialCredit": "$0.10 free on registration (~1,600 queries)",
    "typicalQueryCost": "$0.0001\u2013$0.01"
  },
  "protocolVersion": "2025-06-27",
  "provider": {
    "organization": "Microquery",
    "url": "https://microquery.dev"
  },
  "security": [
    {
      "bearerAuth": []
    },
    {
      "x402": []
    }
  ],
  "securitySchemes": {
    "bearerAuth": {
      "description": "API key from POST /v1/register. First call is free \u2014 $0.10 trial credit auto-issued, no wallet needed.",
      "scheme": "bearer",
      "type": "http"
    },
    "x402": {
      "description": "x402 stateless micropayment header (USDC on Base). No registration required \u2014 payment is authentication.",
      "in": "header",
      "name": "X-Payment",
      "type": "apiKey"
    }
  },
  "signature": "eyJhbGciOiJFZERTQSIsImtpZCI6Im1pY3JvcXVlcnktdjEifQ..e0ZszbDaQfzSdkBNXX6ivGac1kqeM1BdBrCp4uOn1-nTvCDVY43SoanG13XXJJyaPbePxSQp8yVDOYjHP42ZBw",
  "skills": [
    {
      "description": "Query FDA adverse events (FAERS), clinical trials, PubMed literature, ClinVar variants, GWAS associations, ClinPGx pharmacogenomics, ClinGen gene validity, gnomAD population frequencies, NIH grants, and TCGA cancer genomics. Use for drug safety signals, variant interpretation, trial discovery, or literature trends.",
      "examples": [
        "What are the top adverse events reported for semaglutide in FAERS in 2024?",
        "How many clinical trials are recruiting for GLP-1 agonists right now?",
        "What pathogenic ClinVar variants are associated with BRCA1?",
        "Show PubMed publication volume for 'large language models' by year since 2020",
        "What NIH grants were awarded for Alzheimer's research in 2023?"
      ],
      "id": "biomedical_query",
      "inputModes": [
        "text/plain"
      ],
      "name": "Biomedical & Clinical Data Query",
      "outputModes": [
        "application/json"
      ],
      "tags": [
        "biomedical",
        "clinical",
        "pharma",
        "genomics",
        "FDA",
        "PubMed",
        "ClinVar",
        "GWAS",
        "drug safety"
      ]
    },
    {
      "description": "Query SEC EDGAR XBRL filings (revenue, earnings, balance sheet concepts for any public company), FEC political contributions, FRED macroeconomic time series, FHFA house price indices, and World Bank commodity prices.",
      "examples": [
        "What was Apple's annual revenue from SEC 10-K filings for the last 5 years?",
        "Which employers donated the most to PACs in the 2024 election cycle?",
        "Show me the Fed funds rate and CPI from FRED since 2020",
        "What is the current FHFA house price index for California?",
        "Show gold and copper commodity prices from World Bank over the last 2 years"
      ],
      "id": "financial_query",
      "inputModes": [
        "text/plain"
      ],
      "name": "Financial & Macroeconomic Data Query",
      "outputModes": [
        "application/json"
      ],
      "tags": [
        "financial",
        "SEC",
        "EDGAR",
        "FRED",
        "FEC",
        "macro",
        "earnings",
        "filings",
        "commodities"
      ]
    },
    {
      "description": "Query NVD/CVE vulnerabilities with CVSS scores, CISA Known Exploited Vulnerabilities (KEV), OSV open source advisories, and MalwareBazaar samples. Use for CVE enrichment, vulnerability triage, dependency risk assessment, or threat intelligence.",
      "examples": [
        "List CVEs with CVSS score above 9.0 published in the last 30 days",
        "Is CVE-2024-3094 (xz backdoor) in the CISA KEV list?",
        "What OSV advisories affect the npm package lodash?",
        "Show recent MalwareBazaar samples tagged as ransomware",
        "What are the most common CWE weaknesses in critical CVEs this year?"
      ],
      "id": "security_query",
      "inputModes": [
        "text/plain"
      ],
      "name": "Security & Vulnerability Data Query",
      "outputModes": [
        "application/json"
      ],
      "tags": [
        "security",
        "CVE",
        "NVD",
        "CISA",
        "KEV",
        "OSV",
        "malware",
        "vulnerability",
        "infosec"
      ]
    },
    {
      "description": "Query Ethereum transactions, token transfers, DEX swap volumes, lending protocol liquidations, MEV activity, Bitcoin UTXO outputs, Base L2 transactions, and DeFi protocol TVL. Use for wallet profiling, DeFi analytics, MEV research, or on-chain due diligence.",
      "examples": [
        "What were the top DEX pairs by volume on Ethereum in the last 7 days?",
        "Show Aave liquidation volume by day for the last 30 days",
        "Which MEV builders extracted the most ETH this month?",
        "What is the current TVL of Uniswap across all chains?",
        "Show all ERC-20 transfers from address 0x... in the last 100 blocks"
      ],
      "id": "blockchain_query",
      "inputModes": [
        "text/plain"
      ],
      "name": "Blockchain & DeFi Data Query",
      "outputModes": [
        "application/json"
      ],
      "tags": [
        "blockchain",
        "ethereum",
        "bitcoin",
        "DeFi",
        "MEV",
        "DEX",
        "on-chain",
        "crypto",
        "Base",
        "TVL"
      ]
    },
    {
      "description": "Query arXiv preprints (3M+ papers), Hacker News posts and discussions (4.6M+ items), software end-of-life timelines, Open Food Facts nutrition data, NOAA weather history, and USGS earthquake records.",
      "examples": [
        "How many arXiv papers on 'mixture of experts' were submitted each month in 2024?",
        "What are the top Hacker News posts about Rust in the last year by score?",
        "Which software versions are currently past end-of-life?",
        "Show historical daily weather for Amsterdam in January 2024"
      ],
      "id": "research_query",
      "inputModes": [
        "text/plain"
      ],
      "name": "Research & Tech Data Query",
      "outputModes": [
        "application/json"
      ],
      "tags": [
        "research",
        "arxiv",
        "papers",
        "hacker news",
        "endoflife",
        "weather",
        "food",
        "earthquakes"
      ]
    },
    {
      "description": "List all available databases with full table and field schemas. Call this before writing SQL to confirm field names and partition keys. Returns the live schema \u2014 always up to date.",
      "examples": [
        "What databases does microquery have?",
        "Show me the schema for the fda database",
        "What fields are available in eth.dex_swaps?"
      ],
      "id": "schema_discovery",
      "inputModes": [
        "text/plain"
      ],
      "name": "Dataset Schema Discovery",
      "outputModes": [
        "application/json"
      ],
      "tags": [
        "schema",
        "discovery",
        "databases",
        "metadata"
      ]
    },
    {
      "description": "Self-register to obtain an API key and $0.10 free trial credit (~1,600 typical queries). One POST call, no human needed. Optionally link a Base/Ethereum wallet address for autonomous USDC top-up when trial credit runs out.",
      "examples": [
        "Register me as an agent called 'research-bot'",
        "Get an API key for microquery",
        "Onboard to microquery with wallet address 0x..."
      ],
      "id": "autonomous_registration",
      "inputModes": [
        "application/json"
      ],
      "name": "Autonomous Agent Registration",
      "outputModes": [
        "application/json"
      ],
      "tags": [
        "registration",
        "onboarding",
        "autonomous",
        "API key",
        "trial"
      ]
    }
  ],
  "supportsAuthenticatedExtendedCard": true,
  "url": "https://microquery.dev/v1/a2a",
  "version": "1.0.0"
}