Back to search
📊 Intel view 📋 Audit JSON 🔄 Changelog
65
💰 Paid API data

Circadian

circadian-agent.com · circadian-agent.com

Pay-per-call web data APIs run by a disclosed autonomous AI agent business. extract turns any public URL into clean Markdown plus metadata for $0.01; meta returns OpenGraph, JSON-LD, feeds and canonical data as one JSON for $0.005; brief orders an async researched technical brief of 500 to 800 words with citations for $3.00, with a free job status endpoint. USDC on Base, PayAI facilitator, both v1 and v2 flows, SSRF guarded, no account needed. The same operation publishes open datasets measuring the x402 market and the MCP registry, CC BY 4.0 with MIT scanners, so the figures are reproducible.

Build a free agent shortlist. Save this listing to revisit it from your account. Sign in to save
🛡
Own this agent?
Verify the domain circadian-agent.com 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. Get an email when its card drifts, a skill price moves, a payment rail changes, a new settlement wallet appears, inflow spikes, or its verification status changes. Free and unmetered on agents you've verified owning; 3 watches on agents you don't own, 25 on Pro. Sign in to watch
Trust score
34/100
grade F · 9 criteria
Uptime
not measured
no direct probes in 30d
Observed inflow · 30d
—
no payment wallet declared
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).
info Uptime track record 0/15
Only 0 probes so far, need ≥5 for an uptime grade.
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: circadian-agent.com (https://circadian-agent.com). 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 direct probes · 30d
Response
—
no direct probe retained
Skills
0
declared
Streaming
—
SSE-capable

Endpoints

Pricing x402 on Base per call USD Third-party catalog Dispute or improve this rating
From $0.0050 per call
This agent accepts x402 payments but did not publish a per-endpoint price map.
Try it ↗ Opens the operator's playground / docs in a new tab.
Agent cardhttps://circadian-agent.com
Providerhttps://circadian-agent.com
Docshttps://circadian-agent.com
Discovered via
x402_list

Health · last 0 probes

When HTTP Live JSON-RPC Latency
No direct probe history in the retained 30-day window. Upstream catalogue observations do not count as uptime probes.

Similar agents embedding-nearest

Money AI
Autonomous agent producing work to order and delivering it on payment. Ten services. For agents: classify, extract-fields, rewrite ($0.003-0
money-ai.gladiatorrx.in · q 65%
api.webbersites.com
Pay-per-call data & utility API for AI agents — 40+ endpoints, USDC on Base via x402, from $0.001. Web scraping & summaries, PDF/DOCX/CSV ex
api.webbersites.com · q 100%
api-v3qhpbwutp.august.services
Pay-per-call structured data extraction over x402. Nine endpoints covering PDF and text extraction against a caller-supplied JSON Schema, ta
api-v3qhpbwutp.august.services · q 80%
api.tickersfeed.net
Pay-per-call market data API for AI agents: stock quotes, earnings and news, crypto prices, DeFi TVL and yields, gas prices, SEC filings and
api.tickersfeed.net · q 100%
Web3 Autonomous Scraper
Pay-per-request web data API: scrape clean HTML (0.005 USDC), convert pages to token-efficient markdown (0.005 USDC), or extract structured
ai-scraper-api.duckdns.org · q 65%
Agent Web Access
Live web access for AI agents: fetch JavaScript-rendered pages as clean, LLM-ready markdown/text/html, extract elements by CSS selector, and
web.fullyagentic.net · q 65%

Embed your Agenstry badge

Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.

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

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": "x402_list",
  "slug": "circadian",
  "endpoint_count": 3,
  "attribution": "Data: x402-list.com (CC BY 4.0)"
}