eth_sendUserOperation
Submit an ERC-4337 UserOperation for a pinned EntryPoint profile.
Base mainnet, chain ID 8453base:rpcpro — enforced matrix policy, not measured capacity or runtime publicationAvailability: unknownValidation: parser_only
Parameter limits
| JSON path | Frozen limit | Source |
|---|---|---|
| — | unknown | No numeric parameter ceiling is frozen; enforce the declared schema shape and deny an unknown oversized/range profile. |
Historical block retrieval is not an archive-state guarantee. Selectors must be preserved; do not substitute pending, safe, or finalized with latest.
Rate limits and tier
These are enforced product-policy values, not measured upstream capacity or an SLA. Enterprise is finite, never physical “unlimited” capacity.
| Tier | Limit / access | Category |
|---|---|---|
| Free | — (tier gated) | base_aa |
| Basic | — (tier gated) | base_aa |
| Pro | on request | base_aa |
| Business | on request | base_aa |
| Enterprise | on request | base_aa |
See Base limits.
Errors
| Code | Meaning here | Client action |
|---|---|---|
-32602 | Parameters fail the declared schema or upstream parser. | Fix the positional parameters; parser acceptance is not execution success. |
-32003 | The enforced category/provider budget is exhausted. | Honor Retry-After; no capacity SLA is implied. |
-32002 | The key is below the enforced minimum tier. | Upgrade only after the capability is runtime-enabled. |
Authentication/transport failures use the shared client error envelope. See Base errors.
Evidence
- Fixture kind:
parser_only. - Fixture source:
infra-4-sety/integration-base/research/R00/import/originals/probe/bse_v4t4_4337_keyless.jsonat/cases/2. - Fixture SHA-256:
0c373eebf1d2fbd0a443a97abbc52cc3297514b56165ecd9d5450f63a8223845. - Fixture registry:
infra-4-sety/integration-base/research/R00/import/FIXTURES_INDEX.json. - Semantic assertion: HTTP 400 -32602 requires UserOperation and Entrypoint address.
- Evidence boundary: Replay only this bounded assertion; no provider calls or original Python execution. Metadata/response fragments can test rejection but cannot prove capability.
Limitations
- Canonical schema profile; Merkle version support and successful acceptance unverified.
- Hash is userOpHash, not L2 transactionHash; pin chain/EntryPoint/version.
- Availability is the frozen baseline, not deployed readiness. documented is the contract floor; evidence_kind retains unknown/source_summary.