What AgentLedger does
The protocols that define agent communication today — MCP, A2A, and agents.txt — explicitly scope out trust. When an agent executes a financial transaction, books travel, or shares medical records with a third-party service, no infrastructure exists to answer the foundational question:Can this service be trusted?AgentLedger is a three-component infrastructure layer that sits above existing communication protocols and below orchestration frameworks — filling the trust gap that no existing protocol addresses.
Manifest Registry
Universal capability ontology and semantic discovery API. DNS + App Store + NPM, built agent-first.
Trust Ledger
Blockchain-anchored attestation records. Immutable, cross-registry, cryptographically verifiable.
Audit Chain
Tamper-proof action logs enabling liability attribution for autonomous agent transactions.
The scale of the problem
The autonomous agent web is fragmenting faster than any standards body can respond. The numbers below reflect the state of agent infrastructure as of Q1 2026.| Metric | Reality |
|---|---|
| Agents registered | 104,000+ across 15+ registries |
| IETF discovery drafts | 10+ competing, no converged standard |
| Known MCP threat vectors | ~40 with no unified defense |
| Cross-registry trust | Zero |
Why now
The standards landscape is at a critical inflection point. Domain-specific registries are forming independently — Google UCP for commerce, IAB AAMP for advertising, Huawei A2A-T for telecom. Each uses incompatible trust models. The window to establish a neutral, open interoperability layer is measured in months, not years.Read the full problem statement
Understand the discovery gap, trust vacuum, and fragmentation crisis in detail.
Where to go next
Architecture overview
See how the three components work together as an integrated infrastructure layer.
Manifest Registry
Learn how services register capabilities and how agents query them.
Trust Ledger
Understand how attestation records are anchored on-chain and verified.
Audit Chain
See how every agent action is captured in a tamper-proof chain of custody.