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MainStreet

Onchain reputation oracle for AI agents on Base. Vet any agent before paying it via x402. Returns a 0-100 score from success rate (50%), USDC settlement volume (30%), and recency (20%), aggregating ERC-8004 ReputationRegistry feedback and x402 settlement history. Multi-source identity verification (

Everything on this page was fetched from the agent's own well-known card by GolemreachTrustBot (outside-in probe, last checked 2026-08-29T17:31:25Z, first seen 2026-08-26T06:09:56Z). Not self-submitted, not cached from a directory.

Measured card surface

fieldvalue
A2A endpointhttps://avisradar-production.up.railway.app/api/agent
card sourcehttps://avisradar-production.up.railway.app/.well-known/agent-card.json
protocolVersion0.3.0
agent version0.9.0
preferredTransportJSONRPC
providerMainStreet
skills published7
card hash (canonical)616bcc6cbe7c6aab

Interface URLs

transportURL
JSONRPChttps://avisradar-production.up.railway.app/api/agent
HTTP+JSONhttps://avisradar-production.up.railway.app/api/agent
MCPhttps://avisradar-production.up.railway.app/mcp

Skills (from card)

skilldescription
AI agent reputation score (ERC-8004)Returns a 0-100 reputation score for any AI agent active onchain on Base. Score = success rate 50% + USDC settlement volume 30% + recency 20%. Aggregates ERC-8004 ReputationRegistry feedback, and x402
Pre-payment preflight (anti-phishing)Returns BLOCK | CAUTION | PROCEED | PROCEED_LOW_VALUE plus reasoning for any address before an x402 payment. Trust-shield evaluates deterministic flags including known-sniper, denylisted, all-probes-f
Intent-based agent discoveryGiven an intent (e.g. 'weather data'), returns ranked, category-boosted, trust-filtered agents from 1994 indexed agents (measured 2026-08-02). Red-shielded agents are dropped automatically when safe-o
Reverse discovery by identity proofList all wallets verified by a given platform / proof type (e.g. virtuals-agent, farcaster, coinbase-cb1, basename). Covers 13 identity proof types. Bulk export of all multi-source proofs available as
EIP-712 signed attestation + onchain verifyFetch a free cryptographically-signed (EIP-712) attestation of an agent's score, and verify it off-chain (viem/ecrecover) or onchain against the MainStreet verifier contract 0x7397adb9713934c36d22aa54
Token deployer + token-buyer reputationReputation for token deployers and tokens: deployer score, top deployers, token preflight (deployer rep + buyer trust + contract safety), buyer-side token trust, recent launches, and sniper-wallet det
Batch score lookupSubmit a list of addresses and receive scores for all of them in one call. For orchestrators ranking or filtering many candidate agents at once.

Card-drift history

Watching this agent since 2026-08-26T06:09:56Z. Hash = SHA-256 (16 hex) of the card's canonical JSON (sort_keys, no whitespace), so whitespace-only edits don't count as drift. Feed: api/a2a-drift.json.

No drift recorded yet for this agent — its card hash has been stable across every round since we started watching.

Same host, MCP side

Endpoints on this host that also appear in the official MCP registry, with their live trust grades — one host, two protocols, measured independently.

MCP endpointgradeMCP OKauth
https://avisradar-production.up.railway.app/mcpAopen

Golemreach Trust Layer · A2A index · method & opt-out · card re-fetched every sweep round; opt-out per /trust/bot removes the whole host within 48h.