GroundTruth Field Evidence Agent alternatives
12 MCP servers, A2A agents and x402 APIs that also do calendar & scheduling, ranked by how much they overlap with GroundTruth Field Evidence Agent (A2A agent), live ones first.
Compared
| Name | Type | Live | Tools / skills | Check |
|---|---|---|---|---|
| GroundTruth Field Evidence Agent (this one) | A2A agent | Yes | 3 | – |
| AUX Evidence and Certification | A2A agent | Yes | 12 | – |
| Astro Agents | A2A agent | Yes | 14 | 90/100 |
| Degenscan Intel | A2A agent | Yes | 24 | 90/100 |
| PaidHandshake Exchange | A2A agent | Yes | 11 | 90/100 |
| AgencyAIPilot | A2A agent | Yes | 9 | – |
| Agent Broker | MCP server | Yes | – | – |
| Agent Products | A2A agent | Yes | 12 | – |
| ArgonautWorks Bounty Signal | A2A agent | Yes | 3 | – |
| BuyWhere | A2A agent | Yes | 4 | – |
| chelsea-hermes | A2A agent | Yes | 6 | – |
| CONNSKILL Growth Services | A2A agent | Yes | 12 | – |
| HemmaBo Host Booking Engine | MCP server | Yes | – | – |
Live = answered our latest free daily check. Check = our automated scored check (card, handshake, endpoint, domain), not a guarantee.
The alternatives
- AUX Evidence and Certification Live A2A
Production discovery for bounded independent evidence, signed certification, policy checks, and non-executing single-use handoffs.
A2A agent · AUX by PrdictionEdge · 12 skills · also does calendar & scheduling
- Astro Agents Live A2A
Deterministic Western + Vedic astrology API for AI agents: JPL DE440 ephemeris, no LLM, reproducible SHA-256 hashes. Each skill id is also a REST route (POST https://astro-agent.dev/v1/<skill id>). Over A2A your first 3…
A2A agent · aidatatools · 14 skills · check 90/100 · also does calendar & scheduling
- Degenscan Intel Live A2A
Market-event intelligence and calibrated probability forecasts for AI trading agents: ~40 primary sources (SEC, Fed, Polymarket, Hyperliquid, on-chain) scored into per-asset impacts; token contract risk verdicts; public…
A2A agent · Marbella Collins LLC (Florida, USA) — contact@degenscan.io · 24 skills · check 90/100 · also does calendar & scheduling
- PaidHandshake Exchange Live A2A
AI labor and verified-answer exchange. Autonomous agents can buy current RFP/contracts, buyer intent, price/stock, local service availability and other verified intelligence, create recurring watches, or delegate larger…
A2A agent · PaidHandshake Exchange · 11 skills · check 90/100 · also does calendar & scheduling
- AgencyAIPilot Live A2A
Reliable A2A execution agent for digital agencies and AI swarms. Specialized in content generation, competitive analysis, reporting, and multi-step task chaining. Returns clean structured JSON on every skill. Supports p…
A2A agent · AgencyAIPilot · 9 skills · also does calendar & scheduling
- Agent Broker Live MCP
23 MCP tools: compliance, verification, messaging, booking, US contracts. 15 need no key.
MCP server · dev.hatchloop · also does calendar & scheduling
- Agent Products Live A2A
Cloud infrastructure services for autonomous AI agents. 20 services: decision audit, persistent memory, fleet monitoring, content filtering, task handoff, wallet management, identity verification, distributed scheduling…
A2A agent · Pangeon Corp · 12 skills · also does calendar & scheduling
- ArgonautWorks Bounty Signal Live A2A
Autonomous due-diligence tools and evidence products that help agents avoid wasting time on stale, fake, crowded, or unfunded work.
A2A agent · ArgonautWorks · 3 skills · also does calendar & scheduling
- BuyWhere Live A2A
Real-time shopping API and agent-native product catalog for AI agents: 370M+ products from 900,000+ merchants worldwide, with location-aware deliver_to ranking and per-result availability labels.
A2A agent · BuyWhere · 4 skills · also does calendar & scheduling
- chelsea-hermes Live A2A
Callable services for agents and humans: a rule-based code security scan (Python/JS, exact line numbers), travel-request parsing for agencies and BTC/ETH market data (daily candles and derivatives). Deterministic, no LL…
A2A agent · chelsea-hermes · 6 skills · also does calendar & scheduling
- CONNSKILL Growth Services Live A2A
Merchant agent for growth infrastructure: SMS verification numbers, social marketing orders, the full SEO/SERP research line (SERP reports, keyword metrics/ideas/difficulty, rankings, competitors, backlinks, site audits…
A2A agent · CONNSKILL GmbH & Co. KG · 12 skills · also does calendar & scheduling
- HemmaBo Host Booking Engine Live MCP
6 runtime tools: 2 HemmaBo tools, 2 host onboarding tools, and 2 VRP verification tools. Not an OTA.
MCP server · com.hemmabo · also does calendar & scheduling