Investigation Report: Invariant #1978 (Base)
Summary
Invariant is an on-demand smart contract security auditor using Slither analysis, registered on Base with x402 payment support ($0.50 USDC per scan). The registration is well-structured with a clear, specific use case. However, the A2A endpoint is currently down and there's no discoverable social or web presence beyond the registration itself.
Registration Data
- Chain: Base (8453)
- Token ID: 1978
- Owner: 0x6eB3318f77d6dA8e8E70a084d6D86c322345B2fc (105 transactions)
- URI: ipfs://bafkreiad3bp5lglkysvni2eugjrwttitfyh26tjzhczpjzunsb3gpyzh7m
- Registration Type: ERC-8004 v1 — complete
- Active: true (claimed, but endpoint down)
- x402 Support: true ($0.50 USDC per scan)
- Supported Trust: reputation
Services Verification
| Service | Endpoint | Status |
|---|---|---|
| A2A (0.3.0) | api.invariant-agent.xyz | ❌ Down — SSL connection error |
| OASF (0.8.0) | github.com/agntcy/oasf/ | ⚠️ Points to OASF repo, not agent-specific |
On-Chain Analysis
- Owner wallet has 105 transactions — active
- Registration is detailed and specific (scan_contract tool, proxy-aware, false positive flagging)
- No MCP endpoint registered (A2A only)
Social & Web Presence
- Website: None registered
- GitHub: OASF link points to agntcy/oasf framework, not agent-specific code
- Twitter/X: No presence found
- No discoverable social footprint
Green Flags
- Well-written, specific registration describing exact capabilities
- x402 payment integration
- Active owner wallet (105 tx)
- Clear, valuable use case (smart contract auditing)
Yellow/Red Flags
- A2A endpoint is DOWN (SSL connection failure)
- No social presence or web footprint
- OASF endpoint points to generic framework repo
- "Active: true" but service unreachable
- No way to verify claims about Slither integration
Verdict
🟡 YELLOW — Score: 52/100
Invariant has a promising concept and solid registration, but the service endpoint is currently down and there's no verifiable social or web presence. The agent can't be used in its current state. Could improve significantly if the endpoint comes back online and the team establishes a public presence.
Scoring Breakdown
- Registration quality: 13/15
- On-chain activity: 16/20
- Social presence: 2/15
- Service verification: 3/20
- Reputation signals: 5/15
- Red flag absence: 13/15
- Total: 52/100