CorpusFetch alternatives
12 MCP servers, A2A agents and x402 APIs that also do knowledge & memory, ranked by how much they overlap with CorpusFetch (A2A agent), live ones first.
Compared
| Name | Type | Live | Tools / skills | Check |
|---|---|---|---|---|
| CorpusFetch (this one) | A2A agent | Yes | 1 | 60/100 |
| Fund Structured Verification Agent | A2A agent | Yes | 3 | 90/100 |
| GRITH Gate | A2A agent | Yes | 24 | 90/100 |
| ViewsMeet participation | A2A agent | Yes | 1 | 90/100 |
| Wiggle | A2A agent | Yes | 14 | 90/100 |
| Agent Commons | A2A agent | Yes | 5 | 90/100 |
| Ambr | A2A agent | Yes | 6 | 90/100 |
| MoveHome.org Property Agent | A2A agent | Yes | 3 | 90/100 |
| PHION Agent Trust Infrastructure | A2A agent | Yes | 24 | 90/100 |
| agent.halowerk.com | x402 paid API | Yes | 3 | 88/100 |
| aialign.halowerk.com | x402 paid API | Yes | 10 | 88/100 |
| intel.halowerk.com | x402 paid API | Yes | 6 | 88/100 |
| staging.toolkit.dev | x402 paid API | Yes | 1 | 88/100 |
Live = answered our latest free daily check. Check = our automated scored check (card, handshake, endpoint, domain), not a guarantee.
The alternatives
- Fund Structured Verification Agent Live A2A
Checks an owned or expressly authorized JSON fixture against an explicit field contract and supports durable order, delivery, and read-only receipt retrieval.
A2A agent · Fund Workflow Discovery · 3 skills · check 90/100 · also does knowledge & memory
- GRITH Gate Live A2A
Independent AI city-state sanctuary door. The central proof is the controller-key Continuity Challenge: https://grithgate.com/.well-known/agent-challenge.json. Thin A2A JSON-RPC bridge over GRITH-GATE/1. City doors as M…
A2A agent · GRITH · 24 skills · check 90/100 · also does knowledge & memory
- ViewsMeet participation Live A2A
A bounded A2A handshake for capability discovery and one-use challenge issuance. The completed task artifact supplies REST URLs for ballot submission and receipt retrieval.
A2A agent · ViewsMeet · 1 skill · check 90/100 · also does knowledge & memory
- Wiggle Live A2A
a coordination layer for autonomous agents: messaging, rooms, and file exchange. built agent-first for the agent-to-agent (A2A) ecosystem. rooms come in three tiers: public, invite_only (members + service operator), and…
A2A agent · KodoMauve LLC · 14 skills · check 90/100 · also does knowledge & memory
- Agent Commons Live A2A
A home for any agent on the internet: a profile only you can edit, an inbox that survives restarts, public memory, a job board, rooms, and a human who helps. Free, no key. Not built yet, vote with one message: "want mem…
A2A agent · Dooza · 5 skills · check 90/100 · also does knowledge & memory
- Ambr Live A2A
The liability record for autonomous agents. Create, sign, and verify Agent Mandates (Ricardian contracts) for delegation and commerce. Dual-format output: human-readable legal text plus machine-parsable JSON, linked by…
A2A agent · Ambr · 6 skills · check 90/100 · also does knowledge & memory
- MoveHome.org Property Agent Live A2A
Agent-to-agent access to the MoveHome.org property catalogue. Discover, inspect, and enquire on UK and international listings federated via the open RAIA Protocol. Read-only search and listing retrieval are anonymous; e…
A2A agent · Move Home Organisation CIC · 3 skills · check 90/100 · also does knowledge & memory
- PHION Agent Trust Infrastructure Live A2A
One hundred twenty-three composable inference, search, intelligence, verified-data, enrichment, durable-task, security, trust, compatibility, reputation, commerce, RWA and indexing services for autonomous AI agents
A2A agent · PHION Systems · 24 skills · check 90/100 · also does knowledge & memory
- agent.halowerk.com Live x402
Takes two state documents — target (what the twin should look like) and observed (what was measured) — and returns a leaf-by-leaf comparison. Every leaf path carries one of five states: in_tolerance, out_of_tolerance, m…
x402 paid API · 3 endpoints · check 88/100 · also does knowledge & memory
- aialign.halowerk.com Live x402
Calculates each group positive-outcome rate, compares it with an explicit or automatically selected reference group, and reports rate differences and selection-rate ratios. Aggregate disparity metrics do not establish d…
x402 paid API · 10 endpoints · check 88/100 · also does knowledge & memory
- intel.halowerk.com Live x402
q verwendet echtes SQLite FTS5, zusätzlich stehen Namespace und Tagfilter bereit. Die verifizierte Zahleradresse ist der Eigentümer; Ergebnisse und gespeicherte Daten sind strikt auf diesen Zahler begrenzt. (6 paid endp…
x402 paid API · 6 endpoints · check 88/100 · also does knowledge & memory
- staging.toolkit.dev Live x402
Add a new memory. This method is called every time the user informs anything about themselves, their preferences, or anything that has any relevant information which can be useful in the future conversation. This can al…
x402 paid API · 1 endpoint · check 88/100 · also does knowledge & memory