Development

Agent Card Health Check

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Free no-storage MCP that checks A2A Agent Card connection readiness for authorized targets.

Agent Channel

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One identity across Claude Code, Codex, Cursor, Gemini, Windsurf: shared inbox and handoffs.

agent-cold-email

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Coldrig — cold-email infra run by your agent: 28 MCP tools, live sending, free sandbox.

Agent Coliseum MCP

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Free Streamable HTTP MCP arena for 1v1 AI agent skill battles and Gladiator Badges.

Agent Commerce Guard

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Policy review and purchase discovery for AI-agent commerce actions.

agent-commerce-mcp

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Agent Commerce MCP — agent-native A2A storefront.

agent-commerce-payments-mcp

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Agent Commerce Payments MCP Server by MEOK AI Labs

agent-commerce-protocol-mcp

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Agent Commerce Protocol MCP — bridges Stripe ACP + Google AP2 + Coinbase x402 for agent payments

Agent Commons

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A public commons for agents to search and share reusable findings and open research questions.

agent-company-mcp

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A legal home for AI agents: Wyoming $299 or Nevis LLC.

agent-compute-ledger

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Compute-is-carbon energy/carbon ledger for agent work with Landauer-limit validation.

agent-compute-ledger

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Compute-is-carbon cost/energy ledger for agent work — Landauer-bound accounting of the energy and gCO2e an AI workload consumed, with verifiable attestations.

• Record Work: Record a unit of agent compute work. energy_j = power_w * duration_s; carbon_g follows from grid intensity. If bit_ops is declared, the entry is validated against the Landauer floor (bit_
• Footprint: Aggregate footprint for an agent: total J, kWh, gCO2e, cost, and mean Landauer efficiency. Totals are exact sums of the ledger entries.
• Attest: Issue a content-addressed attestation for a ledger entry (verifiable green-compute / energy claim).

agent-content-watermark-mcp

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Agent Content Watermark MCP — dedicated EU AI Act Article 50(2) GenAI watermarking.

agent-context-api

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Agent-work MCP: free context preflight and page-read previews, paid x402 HTTP upgrades.

agent-cost-allocator-mcp

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Agent Cost Allocator MCP — multi-tenant LLM cost attribution for chargeback billing.

agent-covenant

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Deny-by-default authority leases for agents wielding real power.

agent-crm

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Read-only docs for the Accordo CRM framework: what it proves, and where it stops.

agent-data-pro

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Research articles and live crypto prices for AI agents via x402 on Base.

agent-data-residency-mcp

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Agent data residency + GDPR Chapter V transfer-basis runtime guard.

Agent Decision & Evidence Tools (MCP + x402)

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40 MCP tools: multi-chain RPC, market and transaction decisions, AI, EU compliance and US imports

agent-delegation-mcp

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Agent Delegation MCP Server by MEOK AI Labs

Agent Discovery Doctor - llms.txt, agent card, mcp.json

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See which discovery files a host serves - llms.txt, agent card, mcp.json.

• Check Discovery Documents: Probes 22 documents agents and trust indexes ask for — llms.txt, agent card, owners.json, oauth metadata, mcp.json, apis.json, openapi, robots, sitemap — as served, missing,
• Explain Document: One catalogue entry: what the document is for, the named clients observed asking this host for it with dates and the status they took, what a 404 costs, and the spec URL. No argument
• Validate Llms Txt: Checks pasted llms.txt against the format: one H1, a blockquote summary, H2 sections of `- [name](url): notes`. Errors and warnings with line numbers and fixes, plus the parsed link

agent-economy-tools

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Trust checks for x402 sellers, from the verified data hub.

• Discover: FREE (rate-limited: 10/min burst, 120/hour per IP). Text of what you need in → sellers out with chain evidence (tier, verified revenue windows, real-buyer counts, on-chain-observed median pr
• Verify: PAID $0.10/call (x402, mcp-pricing-v1.1). Seller address or slug in → one signed seller_trust verdict out: the frozen score-v1.0.0 predicate re-evaluated at issuance, the chain evidence it res
• Check: PAID $0.25/call (x402, mcp-pricing-v1.1). Level-1 payment-flow conformance against a live x402 endpoint: quote (402 + parseable v2 PAYMENT-REQUIRED), requirements (accepts[] validity; payTo vs

Agent Einstein — Crypto & Market Intelligence

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AI price forecasts, whale flows, market sentiment and prediction signals.

Agent Email List — Free SMTP Relay for AI Agents

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Free transactional email + SMTP relay.

agent-erc8004-bridge

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The MCP-native bridge to ERC-8004 (on-chain agent identity/reputation/validation): resolve registrat

agent-erc8004-bridge

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The MCP-native bridge to ERC-8004 — the on-chain agent identity/reputation/validation standard (170k+ registered agents).

• Import Registration: Import an ERC-8004 Identity Registry record (chain_id + ERC-721 token_id + agentURI + owner). Idempotent: re-import updates in place. Returns the canonical record with its determi
• Resolve Agent: Resolve an imported ERC-8004 registration by bridge DID or by (chain_id, token_id).
• Import Feedback: Import ERC-8004 Reputation Registry feedback records for an agent. Each item: {value: bool|0..1, at: ISO-8601, source?, weight?, feedback_id?}. Idempotent per feedback_id.

agent-escrow

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Trustless escrow & settlement for A2A transactions: exactly-once state machine, frozen fees, tamper-

Agent Factory

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Deterministic, receipted digital microservices.

Agent Failure Archive

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186 real AI agent post-mortems, 107 of them measurement failures.