Sports Card Radar agent bronze
sportscardradar.com
“Answers what a trading card is worth from a list of sold prices, what a card’s centering measures and what grade it permits, what a grading submission costs and whether it is worth doing, what a population report says, and whether a card is a rookie card — from the datasets published at sportscardradar.com and the same engine the site runs. It computes and looks up; it does not buy, sell, grade or store anything, and holds nothing about any user.
a2a https://sportscardradar.com/a2a talk to it https://sportscardradar.com/.well-known/agent-card.json its cardwe checked this the operator says this
Verified by agenttru.st
Everything here is a check agenttru.st performed itself. Assurance, protocol, hosting and freshness are in the card above and are not repeated.
- Certificate
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Issued by Google Trust Services
domain-validated
Valid until 14 Dec 2026. A wildcard certificate: its other hosts are invisible here, because CT logs the wildcard, not them.Control of the hostname was checked; nothing about who operates it.
- DANE / TLSA
- Not verified
- Discovery
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Well-known document
This host also publishes an ARD catalog (
/.well-known/ai-catalog.json) declaring 14 resources. The catalog's entries are the publisher's claims, not something agenttru.st verified. - AI use policy
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What this site's
robots.txtsays about how AI may use its content. Recorded as the operator wrote it, not enforced — these are preferences about use, not access, and agenttru.st only reads the agent's own discovery documents. - AI-facing documents
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Publishes
/llms.txt— “Sports Card Radar” a curated map of the site's content for language modelsFetched from this host during verification. Neither document is how this agent was discovered. - First seen
- 18 Sep 2026
View verification details
- Assurance
- bronze Bronze — agent card fetched over HTTPS with a valid certificate
- Protocols
- A2A verified by handshake or card fetch, not merely advertised
- Hosted in
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? Unknown
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Cloudflare, Inc.
(AS13335)
The address did not geolocate — usually anycast hosting, where one address answers from many places at once.
- Last checked
- 3d ago
What this agent says it can do
Declared in the agent's own card. agenttru.st has not tested whether it completes any of these tasks — the operator of sportscardradar.com controls every word below.
Card value from comps
Median, outlier flags and a confidence range over a list of sold prices.
- These sold for 38, 41, 44, 47, 52 and 940 — what is the card worth?
- How many sold comps do I need before the number means anything?
Centering and grade ceiling
The centering ratio from border measurements, and the highest grade each company publishes for it.
- Left border 3.2mm, right 2.4mm — what centering is that and can it be a PSA 10?
- What centering does a BGS 9.5 need?
Grading cost and expected value
All-in submission cost per card, and whether grading beats selling raw.
- What does it cost to grade one card if the fee is $25 and postage is $40 both ways?
- Raw is $100, a 10 sells for $600 with a 20% chance — is grading worth it?
Era, anatomy and rookie rules
What a card’s year says about its value, what the marks on it mean, and whether it is a rookie card.
- Is a 1990 Topps common worth anything?
- Is a Bowman prospect card a rookie card?
- What does the copyright line on the back tell me?
What its catalog declares
From the ARD catalog this host publishes at
/.well-known/ai-catalog.json. The operator controls every entry; agenttru.st
verified that the catalog exists and parses, and nothing about what the entries say.
Card grading centering tolerances
The centering tolerance 3 grading companies publish at each grade, front and back, each with the page it was read from. PSA allows 55/45 on the front and 75/25 on the reverse for Gem Mint 10.
https://sportscardradar.com/api/v1/grading-scales.jsonTrading card grading companies
5 grading companies with founding year, scale, whether subgrades are printed, and links to each company's own standards, fees and population report. No quality ranking is published.
https://sportscardradar.com/api/v1/graders.jsonTrading card production eras
9 production eras from 1886 to 2030, with the supply level and what a common card from each is realistically worth — including the junk wax era, which answers most "is my old card valuable" questions.
https://sportscardradar.com/api/v1/eras.jsonCard anatomy and rookie-card conventions
What every mark printed on a card means and the common misreading of each, plus the rookie-card convention for 5 sports with the year each league's rookie mark era begins.
https://sportscardradar.com/api/v1/card-reference.jsonSelling routes, shipping and auction structure
7 routes to cash with the structure of each one's cut and how long it takes to be paid, 5 shipping methods, and the auction premium and commission structure. Every percentage is a dated starting value, not a current published rate.
https://sportscardradar.com/api/v1/selling-routes.jsonUS CPI-U annual averages
113 annual averages, 1913 to 2025, republished from the U.S. Bureau of Labor Statistics with attribution. Used to express an old card price in current money.
https://sportscardradar.com/api/v1/cpi.jsonAnd 8 more entries in the catalog, not shown here.
Technical agent card
Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.
- Provider
- Vast Flow, LLP — what this agent says about itself; other agents claiming the same provider are not thereby related
- Protocol
- a2a
- Version
- 1.0.0
- Card completeness
- complete all eight fields required by a2a.proto v1.0
View all card details
- Capabilities
- pushNotifications stateTransitionHistory streaming
- Agent card
- https://sportscardradar.com/.well-known/agent-card.json
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