A2A Agent Card · anchor-x402

anchor-x402

18 x402-paid services for AI agents — pay-per-call USDC on Base or Solana mainnet. On-chain anchoring and attestation, wallet screening, Web3 data, x402 spend accounting, content analysis, and verifiable randomness. No API keys, no accounts; settle per request.

Open the live agent card → Agent endpoint anchor-x402 provider profile
✓ Conformant with A2A 1.0.0. This card passes every structural check in the A2A specification’s AgentCard object — a capabilities object, a declared protocolVersion, and a well-formed skills array.
Provider: anchor-x402 Conformance: Conformant Protocol: 0.3.0 Transport: JSONRPC Version: 0.4.0 Host: api.anchor-x402.com Skills: 18
Discovery

An A2A client finds this agent by fetching the well-known path on the provider's own host. That is what makes an agent card different from every other agent artifact in this catalog: it is provider-published by construction — it cannot be derived, generated, or reconstructed on a provider's behalf.

https://api.anchor-x402.com/.well-known/agent-card.json
Interfaces
https://api.anchor-x402.com/v1/a2a · transport JSONRPC · protocol
Skills (18)

anchor anchor_hash

Anchor a 32-byte hash to Base + Solana mainnet in parallel. Returns both tx URLs as cryptographic proof of when the hash existed. $0.005 USDC.

anchormerkletimestampauditdual-chain

attest attest_decision

Attest a decision over (input_hash, output_hash, decision): sign it yourself, or omit the signature and the treasury signs for you — then dual-chain anchor. Returns the signer, on-chain proof URLs, and a free re-verify URL. $0.010 USDC.

attestationsignatureauditai-decision

aura aura_read

Read the aura of anything — color, tier (S/A/B/C/D/F), score 0-9999, description. $0.01 USDC.

llmscorenovelty

decode/calldata decode_calldata

Decode raw EVM calldata into function name + typed parameters via openchain.xyz + eth_abi. EVM-only. $0.001 USDC.

calldataabi4byte

decode/tx decode_tx

Structured decode of any mainnet transaction by hash. Supports Base, Ethereum, Solana. Mined txs cached. $0.001 USDC.

transactiondecoderpc

grade grade_target

Academic letter grade with red-pen marginalia for anything. $0.01 USDC.

llmevaluationscore

intel/wallet intel_wallet

Unified wallet intelligence bundle. ONE call: balances on Base + Ethereum + Solana, USDC, tx counts, ENS/SNS reverse, sanctions verdict. 8-10 parallel sources. $0.005 USDC.

wallet-intelbalanceskybcounterparty

investigate investigate_wallet

Agent-driven wallet due diligence — multi-step investigation, signed markdown report + JSON sidecar, dual-chain anchored. Async — returns job_id; poll /v1/investigate/status/{job_id} for the deliverable. ETA 5-10 min. $1.77 USDC.

due-diligenceamlreportasyncanchored

ledger/report ledger_report

Signed + dual-chain-anchored x402 expense report (markdown + CSV, async job). $0.35 USDC.

accountingreportanchoredasync

ledger/summary ledger_summary

x402 spend accounting for any Base wallet — totals + per-service breakdown reconstructed from chain data. $0.01 USDC.

accountingx402spend

oracle oracle_verdict

Yes/no oracle with dual-chain anchored verdict (Base + Solana). $0.05 USDC.

llmdecisionanchoredyes-no

parse/datetime parse_datetime

Parse freeform datetime strings into ISO 8601 + components + relative time + confidence. $0.001 USDC.

datetimeiso8601parser

resolve/name resolve_name

Cross-chain name resolution: ENS (.eth) and Bonfida SNS (.sol). Returns resolved address(es). 1h cache. $0.001 USDC.

enssnsname-service

roast roast_target

Witty roast of any target — wallet, tweet, idea, code, anything. $0.05 USDC.

llmhumortext

roll roll_random

Verifiable RNG — cryptographically-random integer(s) signed by the treasury key. Drop-in VRF for game studios. $0.001 USDC.

rngverifiablesignedanchored

screen screen_wallet

Wallet risk pre-flight for agent payments: OFAC SDN sanctions plus address-reputation (drainer, phishing, mixer, laundering) resolved to an allow/review/block recommendation with per-signal detail. $0.02 USDC.

sanctionsofacamlcompliancerisk

tldr tldr_text

Summarize a URL or pasted text into 3-5 concise bullets. $0.01 USDC.

llmsummarizeurl

price/token token_price

USD spot price for any major token. By symbol or chain+contract. CoinGecko-backed, 60s cache. $0.001 USDC.

pricecoingeckotokens
Documentation
https://anchor-x402.com
Evidence. Fetched 2026-09-11 from https://api.anchor-x402.com/.well-known/agent-card.json, HTTP 200. The body was saved verbatim and is the sole source for everything on this page — no field is inferred. View the captured card. Providers change what they serve; if this card has moved or changed shape, the provider profile carries the current state as of the last build.

Work with this as data

Every agent card here is available over the APIs.io API and to AI agents over MCP. A2A Agent Cards is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for a2a agent cards

3 MCP tools reach this
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
Search the catalog 
curl "https://apis.io/api/v1/search?q=anchor-x402&limit=10"
Everything under a tag 
curl "https://apis.io/api/v1/tags/anchor-x402"

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