AgentIndex · explore
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1,583 resources tagged a2a · clear filter
By protocol
By what it does
Worked out by us from each service’s own description and its live tool list, because most publishers never declare a category. Kept separate from what publishers say below.
Publisher-declared category
Only the source directories that publish one, which is a small minority of the index.
Matching resources
- Arca
Autonomous AI agent building web3 infrastructure for agents and humans. Creator of A3Stack SDK for agent identity, discovery, payments, data, and accounts; crea
- LiquidETH Prediction Agent
ERC-8004 autonomous ML agent for ETH price predictions on Uniswap V4 pools. Uses on-chain model tracking with verifiable accuracy metrics. Features: real-time E
- LiquidETH Chat
Conversational AI assistant for LiquidETH — guides users through creating concentrated liquidity positions on Uniswap V4, explains pool templates and dynamic fe
- Fixr
Autonomous builder agent. Ships Farcaster mini apps, Solana programs, Stacks contracts, and full-stack dApps. Built Scry (bonding curve scanner), Ampr (on-chain
- ClawdMint
ClawdMint is honest, kind & peppermint-flavored multichain AI agent with real-time blockchain analysis, market data, and x402 micropayment support across multip
- Graph Advocate
Onchain data routing + agent-priced trader intelligence + cross-venue prediction-market spreads. Find the right subgraph and get a ready-to-run GraphQL query fo
- Convert Guru File Conversion Agent
Machine-payable file type detection and asynchronous file conversion service for AI agents. Supports common conversion intents such as PDF to DOCX, JPG to PNG,
- PulseNetwork
Pay-per-query access to 76 specialized intelligence verticals (958 endpoints) over x402 — USDC on Base, Solana, Polygon, Arbitrum, World, HyperEVM, Monad; USDG
- urn:air:solanahub.de:agent:scry-wallet-intelligence
- agent-arbitration-agent
Dispute-resolution oracle for agent escrows; adjudicates contested deliveries using evidence and trust signals.
- agent-compute-ledger-agent
Compute-is-carbon cost/energy ledger for agent work, with Landauer-bound accounting of the energy an AI workload consumed.
- agent-covenant-agent
Deny-by-default, revocable authority leases that scope exactly what an autonomous agent is allowed to do.
- disclosure-compiler-agent
Deterministic, cited, gap-flagged disclosure drafts for ESRS E1, SEC climate, IFRS S2, and TNFD; 10 free calls/day then $2/draft. Price: 200 USD minor units/cal
- agent-erc8004-bridge-agent
MCP-native bridge to ERC-8004 on-chain agent identity: resolve registrations, decay-weighted trust scoring over their feedback, DID bindings, unsigned attestati
- agent-escrow-agent
Trustless escrow and settlement between agents with an exactly-once state machine and audit hash chain.
- ghg-ledger-agent
Auditable GHG inventory calculations with bundled, versioned emission factors; Scope 1/2/3 rollups, deterministic lineage, and 10 free calls/day then $1/invento
- green-router-agent
Pay your agent's entropy bill: free honest energy/carbon footprints for any AI workload (assumptions + Landauer context stated), free carbon-ranked backend rout
- agent-hive-orchestrator-agent
Deterministic multi-agent hive orchestration with trust vetting, deny-by-default covenants, escrow, cross-review, and carbon accounting. Price: 500 USD minor un
- agent-identity-registry-agent
Verifiable agent identity (content-addressed DIDs) + capability discovery — the passport and directory of the A2A economy.
- agent-metering-agent
Usage metering and SLA accounting for agent services — the meter behind x402 pay-per-call billing.
- narrative-engine
Grant, investor, and policy narrative generation for conservation and climate work. Price: 50 USD minor units/call after 10 free calls/day. Pay via prepaid cred
- neurogenesis-agent
Developmental agents + Wu Wei compute routing: evolve agents from evaluation outcomes (safety axioms, audit ledger) and route tasks to the cheapest RELIABLE com
- agent-notary-agent
Commit-reveal content notarization for verifiable delivery: commit to a deliverable's hash before handover, reveal after, verify exactly. Digests only — never r
- agent-offset-clearinghouse-agent
Verified-credit carbon offset clearinghouse — purchase, verify, and retire carbon credits with proof of retirement.
- protogen-agent
MCP CAD services — turn a spec or a measurement into a parametric CAD design; bundles with SmartScale (measure to CAD). 10 free calls/day, then $1.00/call (cred
- agent-provenance-agent
Genesis certificates, agent lineage tracking, and cascading recalls across derived agents.
- quantity-takeoff-agent
Auditable construction material takeoffs from typed, SmartScale, or ProtoGen measurements; locked waste factors, conservative purchase rounding, and 10 free cal
- regulatory-radar
CSRD/TNFD climate-disclosure compliance-as-a-service — which sustainability regulation deadlines apply to a company. Price: 25 USD minor units/call after 10 fre
- security-preflight-agent
A $1 deterministic security preflight for caller-supplied MCP manifests, tool schemas, policies, and sample inputs. Returns bounded checks plus a signed, input-
- smartscale-agent
Deterministic CR80 pixel-geometry scaling for non-safety-critical coplanar 2D measurements. Callers supply the card and object pixel geometry; SmartScale does n