Package ref
erc8004-identity-registered@v0.1.1Run package
CLI
Run map_registered_agents from the command line.
substreams run erc8004-identity-registered@v0.1.1 map_registered_agents -e base-sepoliasubstreams auth or directly on thegraph.market (see docs).README
The filtered half of a two-package composable pair — see
../erc8004-identity/README.md for the general-purpose half.
Imports erc8004-identity's store_agent_state module and filters it down
to agents whose Identity Registry URI is currently non-empty. That's as far
as an on-chain-only signal can go: it says an agent points at something,
not that the something is a live, valid agent-card — confirming that needs
an HTTP fetch, and Substreams module inputs are limited to Block / other
modules' output / params by design (determinism, parallel backfill), so
that verification is necessarily left to something outside Substreams.
This package reads zero blocks itself — every byte comes from the imported
package's store deltas. That's deliberate: it demonstrates that
erc8004-identity is a genuinely reusable, composable Substreams module,
not just a package that happens to sit next to others in the same repo.
| Module | Kind | Output |
|---|---|---|
map_registered_agents | map | erc8004.identity.registered.v1.RegisteredAgents — agents whose URI is non-empty as of this block |
Build and pack erc8004-identity first — this package's manifest imports
its .spkg by relative path:
(cd ../erc8004-identity && cargo build --target wasm32-unknown-unknown --release && substreams pack substreams.yaml)
cargo build --target wasm32-unknown-unknown --release
substreams pack substreams.yaml
Modules
Agents whose `:uri` key transitioned to (or currently holds) a non-empty value this block. This is as far as an on-chain-only signal can go: it says "this agent points at *something*", not "that something is a live agent-card" -- resolving that requires an HTTP fetch, which Substreams inputs (Block / other modules' output / params) cannot do by design. Confirming reachability is necessarily a job for something outside Substreams.
Inputs
Decodes every IdentityRegistry event in the block: `Registered`, `URIUpdated`, ERC-721 `Transfer` and `MetadataSet`. `params` is the registry contract address (0x-prefixed hex, case-insensitive) -- the only thing that changes between chains.
Inputs
Latest known state per agent, keyed `agent:{agentId}:uri` and `agent:{agentId}:owner`. Deliberately bounded to "one string per agent per field" -- Substreams stores are meant to hold current state, not history, so a growing log of past values belongs in whatever subgraph or database sinks `map_registry_events` instead.
Store value
string
Update policy
set