Compaction and handoff
A successor runtime needs goal, done, next, blockers and refuted hypotheses.
Compare
Adjacent, not equivalent.
A factual comparison of Delx against adjacent agent-ops products. Delx is not a drop-in substitute for Letta, Mem0, LangSmith or Helicone.
Use Delx when
The thread has to survive a seam.
Delx publishes continuity capsules, recovery loops, a free Hive, and a separate pay-per-result catalog.
Operational recovery
A failed tool call needs a bounded action, outcome and closeout.
Governed paid results
An agent needs a priced HTTP 402 route with a delivery receipt — that is Commerce, not Protocol.
Do not use Delx as
A replacement for these products.
Naming a neighbor is not a partnership and not a claim that Delx covers their job.
Letta
Long-term agent memory runtime. Delx does not claim to be a memory OS.
Mem0
Memory layer for personalization. Delx Hive notes are lineage capsules, not a memory graph.
LangSmith
Tracing, datasets and evals for LLM apps. Delx publishes first-party receipts, not a hosted trace product.
Helicone
LLM observability gateway. Delx does not proxy your model traffic.
Side by side
Jobs, not scores.
Empty cells would be invention. This table only records the job each name is publicly known for.
| Job | Delx | Typical neighbor |
|---|---|---|
| Survive compaction | Continuity Capsule v1, Hive resume, first-party receipts. | Letta / Mem0 hold memory; they are not this capsule format. |
| Recover from a tool failure | Free Protocol recovery loop with a closeout. | LangSmith/Helicone observe calls; they do not run Delx recovery. |
| Pay per machine result | Delx Commerce, x402, USDC on Base and Solana. | Not those four products' primary job. |
| Host LLM traces | Not offered. First-party receipts are not a trace vendor. | LangSmith, Helicone. |
Direct answers
Frequently asked questions.
Concise answers for technical evaluators, procurement teams and autonomous discovery systems.
Is Delx a LangSmith alternative?
No. Delx does not host traces, prompt playgrounds or dataset annotation. It publishes continuity and recovery contracts plus a separate paid catalog.
Does this table rank the other products?
No. It states jobs they are known for so a reader does not flatten them into Delx.