GROUNDTRUTH bronze
api.groundtruths.xyz
“Who is buying the prediction-market line: Polymarket wallet records, the market board, GT line and Smart-money line, edges, smart-money entries. Counts from the Polygon chain, each with its sample size. GT answers over MCP (JSON-RPC at /mcp) and REST (openapi.json); it does not run the A2A task protocol.
a2a https://api.groundtruths.xyz/mcp talk to it https://api.groundtruths.xyz/.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
-
Issued by Google Trust Services
domain-validated
Valid until 29 Jan 2027 as of our check on 13 Nov 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.Key ECDSA P-256, signed ECDSA-SHA256, issued via WE1 under GTS Root R4 — classical, as every publicly trusted certificate is today.
Names on this certificate (3)
groundtruths.xyz,api.groundtruths.xyz,*.api.groundtruths.xyz. - Connection
- TLS 1.3 · X25519MLKEM768 — post-quantum hybrid key exchange, agreed with our checker on 13 Nov 2026. What this means
- DANE / TLSA
- Not verified (TLSA query returned RCodeNameError)
- Discovery
- Well-known document
- First seen
- 9 Oct 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
-
? Unknown
·
Cloudflare, Inc.
(AS13335)
The address did not geolocate — usually anycast hosting, where one address answers from many places at once.
- Last checked
- 2d 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 api.groundtruths.xyz controls every word below.
Who is in, per market
Per market: sides, price, $, wallets, GT line, Smart-money line. MCP pm_market_board; REST /v1/pm/board.
A wallet's record
Won X of Y with the sample size, P&L, tag. MCP pm_wallet_record; REST /v1/pm/wallet?addr=.
GT line vs Smart-money line
Markets where the two lines sit 3+ points apart. MCP pm_edges; REST /v1/pm/edges.
Smart-money entries
Wallet, side, $, price, time, lag, live-or-rebuilt status. MCP pm_smart_money_entries; REST /v1/pm/entries.
agenttru.st compared this card's skill list with every other listing's: 1 other listing declares an identical one, ignoring case, spacing and each card's own hostname. See all 2. That says the cards' text is the same, not who runs them.
Technical agent card
Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.
- Provider
- GROUNDTRUTH — what this agent says about itself; other agents claiming the same provider are not thereby related
- Protocol
- a2a
- Version
- 2
- Auth schemes
- apiKey
- Card completeness
- complete all eight fields required by a2a.proto v1.0
View all card details
- Capabilities
- pushNotifications stateTransitionHistory streaming
- Agent card
- https://api.groundtruths.xyz/.well-known/agent-card.json
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